27 Best Window Replacement Companies in Berkeley, CA (2023 Reviews)
Window Companies Near Me
If you're thinking of upgrading to new windows, our guide to the best window installation companies can help.
We analyzed all the top window installers in Berkeley and selected the top 27 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated May 04, 2023
Why you can trust EcoWatch
A guide on the best window installation companies in Berkeley may not seem like the most compelling article on EcoWatch, but trust us, windows have a more direct impact on your life than you might realize. During the hot summer months, the last thing you want is your cool air to leak out of your drafty windows.
Installing new, efficient windows on your property can help you save money every month on your energy bills — and you can help the environment, too.
Efficient windows are of particular importance in Berkeley, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $531 each year.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Overall
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best Affordability
Window World
- Great industry reputation
- EnergyStar Partner
- Lifetime warranty
- Quality of service will depend on your area
Best Window Replacement Companies in Berkeley
The EcoWatch Reviews team researched many window providers in Berkeley to find the best ones for our readers. The companies in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

Milgard Windows & Doors
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EnergyStar Partner
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Wide network of installers
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Lifetime warranty available
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Entails hiring third-party contractors
Milgard Windows & Doors has the best local installation in Berkeley. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has about 60 years of experience in the window replacement business. Hundreds of positive reviews from customers online back the provider's reputation.
You may want to consider opting for Milgard if you're looking for a installer that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.
Energy Efficiency of Milgard Windows & Doors WindowsThe company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised. Not all of Milgard's offerings are Energy Star certified, so be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Milgard Windows & Doors cost in Berkeley?Prices are not available on Milgard's website because the cost of window installment depends on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. The best way to get more accurate information is to get a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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No lifetime warranty
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Berkeley.
If you're looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the right company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Berkeley?Prices are not available on Andersen's website because the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you'd like to know for sure, you can request a quote on the company's website.

Window World
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Great industry reputation
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EnergyStar Partner
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in Berkeley. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window replacement business. The company has hundreds of positive reviews from customers on online review websites.
Window World may be the company for you if you're interested in one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window World cost in Berkeley?Pricing details are not available on Window World's website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about the cost.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct has the best warranty in Berkeley. This company has 20 years of experience in the windows business, and it has established itself as one of the most reputable companies in Berkeley. Its reputation is backed by hundreds of positive reviews on customer review websites.
Universal may be the company for you if you want one that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Berkeley?Prices aren't mentioned on Universal's website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. For more detailed information on the cost, you can ask for a quote from the company.
One thing to note is that the companies in this section are national, which means the quality of customer service may vary depending on your local team. We have tried to stay unbiased and transparent by listing both pros and cons for every company.
More Window Replacement Companies in Berkeley
Charles Window & Door Company
San Rafael, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Stained Glass
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Double-Hung
Winning Windows
Oakland, CA-
Good Customer Service
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Price Transparency
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Timely Service
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Free assessment
Services Offered
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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
Best Exteriors
San Leandro, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Double-Hung
Best Exteriors
Oakland, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Double-Hung
The Glass Man & Sons Windows and Glass Alameda
Alameda, CA-
Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Full-Service Installations
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Stained Glass
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Best Exteriors
Oakland, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Double-Hung
Budget Blinds of San Leandro / South Hayward
San Leandro, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Aluminum Window Frames
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Commercial Windows
Aames Windows & Doors Inc
Alamo, CA-
Good Customer Service
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Award-Winning
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Free assessment
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Price Transparency
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Timely Service
Services Offered
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Energy-Efficient Options
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Double-Hung
Home Services at The Home Depot
Martinez, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Stained Glass
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
Ace Glass Company
San Francisco, CA-
Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Tempered Glass
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Double-Hung
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Commercial Windows
The Sliding Door Company
San Francisco, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Lafayette Glass Company
Lafayette, CA-
Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Fast Delivery
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Double-Hung
East Bay Glass
Oakland, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Energy-Efficient Options
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Commercial Windows
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Double-Hung
Contra Costa Plate & Mirror Co
Pacheco, CA-
Good Customer Service
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Price Transparency
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Award-Winning
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Free assessment
Services Offered
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Glass Showers
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Custom Window Designs
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Residential Windows
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Tempered Glass
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Double-Hung
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Commercial Windows
Home Services at The Home Depot
San Leandro, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Commercial Windows
The Window Specialists, Inc.
Oakland, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Energy-Efficient Options
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Bay Windows
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
Celtic Glass, Inc.
San Francisco, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
Glass Work
San Rafael, CA-
Good Customer Service
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Educational Website
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Timely Service
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
The Window and Door Shop, Inc.
San Francisco, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Aluminum Window Frames
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Double-Hung
Sunlight Window and Door Systems, Inc.
Oakland, CA-
Good Customer Service
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Price Transparency
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Timely Service
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Free assessment
Services Offered
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Energy-Efficient Options
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Glass Showers
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
Wood Windows and Doors Corporation
San Pablo, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Nana Wall Systems, Inc.
Corte Madera, CA-
Good Customer Service
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Educational Website
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
Lon's Glass & Mirrors Inc
San Leandro, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
KMS Glass
Oakland, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Blyss Construction Oakland
Oakland, CA-
Good Customer Service
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Award-Winning
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Free assessment
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Price Transparency
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Timely Service
Services Offered
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Bay Windows
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
Bailey Windows
Walnut Creek, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Double-Hung
Home Services at The Home Depot
Concord, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Commercial Windows
How Installing Energy-Efficient Windows in Berkeley Saves You Money
When you switch to energy-efficient windows, you may see a few benefits, such as:
- Save on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up about 25-30% of household energy use. Upgrading to energy-efficient windows can help lower that number, which helps you save $531 a year on your bills.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out damaging UV rays.
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, drafty or potentially even damaged in some way. Upgrading your windows could help increase the value of your property if you decide to sell.
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% when you install Energy Star certified windows. In Berkeley, that's about 117 pounds per year on average.
Estimated Cost of Window Replacement in Berkeley
When considering window installation, each company offers varying services and prices. Let's look at some typical costs and services.
How Much Do New Windows Cost?
According to our research, the average cost of installing a single window is around $600. However, window replacement costs can range from $200 to $1,200 per window. But costs differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations and replacements, which will add extra costs to your project.
Keep in mind that energy-efficient windows may come at a higher price point, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
Costs will also vary depending on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
When it comes to window replacements, there are typically two types that your provider will have: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the windowsill, frame, trim and the window panes. As this type of installation requires more time, it will be more expensive than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are simpler and won't cost as much, but you can't do this kind of installment if you have any pre-existing rot or water damage.
If you're unsure which type of window installation service you need, your installer should be able to help you out. Generally, the choice depends on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Overall
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best Affordability
Window World
- Great industry reputation
- EnergyStar Partner
- Lifetime warranty
- Quality of service will depend on your area
How We Choose the Best Window Installers in Berkeley
The EcoWatch Reviews team is different from other reviewers since we're examining these companies through a sustainability lens. Along with energy efficiency, we evaluated each installer and ranked them based on the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve the Berkeley area so you can find a quality window installation company near you.
Work Quality
When choosing new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the brand you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including quality of installation, quality of parts, warranty, cost, professionalism and more.
Cost
This one is a give-and-take: similar to other services, cheap window installers may not provide the most quality service. On the other hand, we want to make sure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a hefty investment, so you'll want to be certain that investment is protected. Window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Berkeley's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of Berkeley window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Berkeley, CA Window Replacement FAQs
What is the typical cost to replace windows?
The national average cost of installing one window is around $600 but can range between $200 and $1,200, depending on a variety of factors. The price is often dependent on the location of your property, the size of the window and the type and material of the window. Also, bear in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the different types of windows?
The most common kinds of windows for homes include: picture windows, awning windows, casement windows, bay windows, double-hung and single-hung windows, transom windows and slider windows.
Can you install your own windows?
Although you can install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help guarantee that the job is done properly and that you won't have to spend the time and effort to do it yourself.
How long does window installation generally take?
Because the average installation time of a window is 30 minutes, about 16 windows can be installed in a typical 8-hour work day.
Should I replace all my windows at once?
If your windows are greater than 20 years old, it's most likely time to replace all of them. At that point, they are typically less efficient, draftier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less time.