25 Best Window Replacement Companies in Clayton, CA (2023 Reviews)
Window Companies Near Me
Thinking of improving your home's look? The best window replacement companies can help.
We analyzed all the top window installers in Clayton and selected the top 25 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
The EcoWatch Reviews team is all about helping Clayton homeowners find eco-conscious solutions for their homes. If your house has old or damaged windows, your AC or heater could be working extra hard to heat or cool your house. This means higher electricity bills.
That's bad news for both your wallet and the environment, but one of the top window installation companies can help you with that.
So if you're building a new home, renovating or updating your windows in Clayton, you've found the best place to get started.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Affordability
Window World
- Large serice area
- Low prices relative to competitors
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Manufactures products in-house
- Member of US Green Building Council
- No lifetime warranty
Best Window Replacement Companies in Clayton
The EcoWatch team evaluated dozens of window providers across Clayton to narrow our list down to the top ones. The companies in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.

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 is a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has been in business since 1962 and currently serves Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Hundreds of positive reviews from customers online back the provider's reputation.
You may want to consider going with Milgard if you're interested in a company 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 WindowsMilgard Windows & Doors carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. The 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.
How much does Milgard Windows & Doors cost in Clayton?Milgard does not list prices on its website, but it offers different kinds of windows at varying price points. Getting a free quote on its website is the best way to get more accurate pricing information.

Window World
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Large serice area
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Low prices relative to competitors
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EnergyStar Partner
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Quality of service will depend on your area
Window World provides windows expertise in Clayton. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been operating since 1995 and currently provides services to 200 locations nationwide.
If you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the provider for you.
Energy Efficiency of Window World WindowsThere are a wide range of window types available from Window World, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Clayton?Window World doesn't have any pricing information displayed on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on pricing, you can inquire about a quote from the company.

Renewal by Andersen
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Great industry reputation
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Manufactures products in-house
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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. Andersen has been in the window installation industry for about 27 years. Many positive reviews on customer review websites back the provider's reputation.
It has established itself as a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide variety of window types that Renewal by Andersen offers, some of which are Energy Star products. 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 Clayton?Prices aren't available on Andersen's website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can request a free quote on its website for more information about pricing.

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 Clayton. Universal has over 20 years of industry experience, and it currently serves 27 states nationwide. Hundreds of positive reviews from customers online back the provider's reputation.
It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThe 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. Not all of Universal's offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Clayton?Universal doesn't have any pricing information listed on its 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. If you'd like more accurate pricing information, you can ask for a quote on the company's website.
We strive to stay unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not affect our rankings.
More Window Replacement Companies in Clayton
The Glass Guru
Antioch, CA-
Free assessment
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Timely Service
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Award-Winning
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Glass Showers
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Residential Windows
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Aluminum Window Frames
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Sliding Glass
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Commercial Windows
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Stained Glass
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Double-Hung
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Tempered Glass
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Full-Service Installations
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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Sliding Glass
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Aluminum Window Frames
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Residential Windows
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Fast Delivery
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Glass Showers
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Custom Window Designs
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Stained Glass
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Bay Windows
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Energy-Efficient Options
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Commercial Windows
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Double-Hung
Best Exteriors
San Leandro, CA-
Good Customer Service
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Timely Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Double-Hung
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Custom Window Designs
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Sliding Glass
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Glass Showers
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Fast Delivery
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Stained Glass
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Residential Windows
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Bay Windows
Best Exteriors
Oakland, CA-
Timely Service
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Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Residential Windows
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Glass Showers
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Stained Glass
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Bay Windows
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Sliding Glass
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Double-Hung
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Fast Delivery
Catalog Blinds
Brentwood, CA-
Good Customer Service
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Free assessment
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Award-Winning
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Price Transparency
Services Offered
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Energy-Efficient Options
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Residential Windows
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Bay Windows
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Sliding Glass
Cal Coast Window & Door
Pleasanton, CA-
Price Transparency
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Educational Website
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Good Customer Service
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Award-Winning
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Free assessment
Services Offered
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Bay Windows
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Residential Windows
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Full-Service Installations
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Custom Window Designs
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Energy-Efficient Options
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Sliding Glass
Aames Windows & Doors Inc
Alamo, CA-
Award-Winning
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Free assessment
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Price Transparency
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Good Customer Service
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Timely Service
Services Offered
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Energy-Efficient Options
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Residential Windows
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Bay Windows
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Double-Hung
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Custom Window Designs
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Fast Delivery
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Stained Glass
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Sliding Glass
Aames Windows & Doors
Concord, CA-
Timely Service
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Good Customer Service
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Award-Winning
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Double-Hung
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Energy-Efficient Options
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Sliding Glass
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Residential Windows
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Stained Glass
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Bay Windows
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Fast Delivery
Home Services at The Home Depot
Martinez, CA-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
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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Double-Hung
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Aluminum Window Frames
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Stained Glass
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Glass Showers
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Fast Delivery
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Commercial Windows
Dan's Glass Inc
Concord, CA-
Price Transparency
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Educational Website
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Good Customer Service
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Timely Service
Services Offered
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Glass Showers
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Double-Hung
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Sliding Glass
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Residential Windows
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Commercial Windows
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Fast Delivery
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Custom Window Designs
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Bay Windows
Bestoff Windows & Construction
Concord, CA-
Price Transparency
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Educational Website
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Timely Service
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Good Customer Service
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Free assessment
Services Offered
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Aluminum Window Frames
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Sliding Glass
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Energy-Efficient Options
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Bay Windows
Lafayette Glass Company
Lafayette, CA-
Award-Winning
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Educational Website
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Timely Service
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Sliding Glass
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Full-Service Installations
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Double-Hung
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Residential Windows
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Fast Delivery
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Glass Showers
East Bay Glass
Oakland, CA-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Double-Hung
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Sliding Glass
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Bay Windows
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Energy-Efficient Options
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Stained Glass
Contra Costa Plate & Mirror Co
Pacheco, CA-
Free assessment
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Price Transparency
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Good Customer Service
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Award-Winning
Services Offered
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Commercial Windows
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Custom Window Designs
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Double-Hung
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Glass Showers
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Residential Windows
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Tempered Glass
TINTIX Window Tinting
Brentwood, CA-
Free assessment
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Timely Service
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Double-Hung
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Bay Windows
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Custom Window Designs
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Fast Delivery
Danville Glass Shower & Windows
Danville, CA-
Price Transparency
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Free assessment
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Educational Website
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Award-Winning
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Timely Service
Services Offered
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Sliding Glass
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Residential Windows
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Fast Delivery
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Full-Service Installations
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Custom Window Designs
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Glass Showers
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Double-Hung
Windows & Beyond
Concord, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Timely Service
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Free assessment
Services Offered
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Commercial Windows
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Custom Window Designs
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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Residential Windows
Custom Exchange Windows
Pleasanton, CA-
Free assessment
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Price Transparency
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Award-Winning
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Good Customer Service
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Educational Website
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Timely Service
Services Offered
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Residential Windows
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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
Sears Heating and Air Conditioning
Livermore, CA-
Price Transparency
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Award-Winning
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Stained Glass
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Glass Showers
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Bay Windows
Bay Home & Window
Pleasanton, CA-
Free assessment
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Good Customer Service
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Price Transparency
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Award-Winning
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Glass Showers
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Bay Windows
PREMIUM WINDOW TINT & AUTOWORX
Pittsburg, CA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Commercial Windows
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Custom Window Designs
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Double-Hung
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Bay Windows
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Residential Windows
Sunlight Window and Door Systems, Inc.
Oakland, CA-
Timely Service
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Energy-Efficient Options
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Commercial Windows
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Residential Windows
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Glass Showers
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Fast Delivery
CWD Remodels & Windows
Concord, CA-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Bay Windows
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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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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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Commercial Windows
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Bay Windows
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Double-Hung
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Glass Showers
Diablo Custom Screen & Glass
Concord, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Residential Windows
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Commercial Windows
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Custom Window Designs
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Glass Showers
How Installing Energy-Efficient Windows in Clayton Saves You Money
When you upgrade to energy-efficient windows, you may see several benefits, including:
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Save money on power bills: Installing energy-efficient windows lowers your energy bills by about 12% since you use less energy.
- Protect your investment: If you have an older home, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Clayton
Windows come in all shapes and sizes, so costs and services will vary considerably. Here are the average costs and services that you can find from the average window installation company.
How Much Do New Windows Cost?
On average, Clayton homeowners can anticipate their window installations to range from $250 to $1,200. The most common installations sit at approximately $600. But costs differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which will add extra costs to your project.
With windows, efficiency is the most important factor for most homeowners. Efficient windows may cost more upfront, but by increasing the efficiency of your home — particularly if you live in a hot climate — they can provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Clayton homeowners $579+ per year after replacing single-pane windows.
How much your window installation costs will also vary depending on the type of material you choose for the frames. Wood windows are usually the most expensive, but it depends if they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
There are typically two types of window replacement services: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the sill, frame, trim and the window panes. Because this type of installation is more involved, it will be more expensive than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are on the simpler end and won't carry as large a bill, but you can't do this kind of installment if you have any pre-existing rot or water damage.
If you're hiring a reputable window installation company, your company can recommend the best type for your project. In Clayton, the decision will mostly be based on the efficiency of your home and the age of your existing frames.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Affordability
Window World
- Large serice area
- Low prices relative to competitors
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Manufactures products in-house
- Member of US Green Building Council
- No lifetime warranty
How We Choose the Best Window Installers in Clayton
EcoWatch reviews differ from most reviews since we look at these companies through a sustainability lens. Along with energy efficiency, we assessed window companies all across the state and assigned rankings based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Clayton so you can find a quality window installation company near you.
Work Quality
When choosing new windows, the quality and variety of services often plays just as important of a role in insulation and performance as the brand of window 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 trends in recent online reviews to determine the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it reflects the quality of services across most other categories, including warranty, quality of installation, cost, quality of parts, professionalism and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a substantial investment, so you'll want to be certain that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Clayton, CA Window Replacement FAQs
What is the typical cost to install new windows in a home?
The typical cost of installing one window can range from $450 to $650. There are a variety of factors that affect the price, including the number of windows, your property's location, styles and sizes of windows, local labor costs, the materials used in designing the windows and how energy-efficient the windows are.
What are the different types of windows?
The most common types of windows for homes are transom windows, slider windows, double-hung and single-hung windows, bay windows, casement windows, picture windows and awning windows.
When should I use a window installation company?
Unless you're handy and have the time needed to replace your own windows, we recommend hiring a professional installer. The window installation process is complicated and can take anywhere from four to six hours for one window. Although it's tempting to try to save some money by doing it yourself, hiring a company is a faster, more efficient and safer alternative.
How long does it generally take to install windows?
Since a window takes about 30 minutes to install, around 16 windows can be installed during an 8-hour work day.
When is the best time of year to replace windows?
Though you can install windows any time of year, warmer weather is generally better for installing replacement windows. In addition, the weather should be dry, because rain can make the installation harder.