24 Best Window Replacement Companies in Walnut Creek, CA (Feb 2023)
Window Companies Near Me
If you're looking to get new windows, our guide to the top window installation companies can help.
We analyzed all the top window installers in Walnut Creek and selected the top 24 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 January 12, 2023
Why you can trust EcoWatch
Whether you're updating for style or have windows that need repairs, windows play a vital role in conserving electricity in your home. Drafty windows can make your AC or heater work extra hard in the summer or winter.
Replacement windows improve the insulation in your home, not only making you more comfortable during the summer and winter, but also saving you some money and helping the environment.
So if you're constructing a new home, renovating or updating your windows in Walnut Creek, this guide is 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 Overall
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best Affordability
Window World
- Large serice area
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Window Replacement Companies in Walnut Creek
The EcoWatch Reviews team researched dozens of providers that serve the Walnut Creek area to find the best window installation companies that fit our standards. The installers we've included in this article scored best in our categories, including energy-efficient offerings, availability, price, 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 offers the best local installation in Walnut Creek. This company has 60 years of experience in the window installation industry, and it has become one of the best companies in the business.
Milgard may be the company for you if you want one 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 appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Walnut Creek?Milgard doesn't have any prices available on its website, but 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 offers the best availability in Walnut Creek. Andersen has been in the window industry for around 27 years. The company has plenty of positive reviews from customers online.
Andersen may be the company for you if you're looking for one 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 WindowsRenewal by Andersen is an Energy Star partner offering a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Walnut Creek?Prices aren't mentioned 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.

Window World
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Large serice area
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EnergyStar Partner
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Low prices relative to competitors
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Quality of service will depend on your area
Window World has windows expertise in Walnut Creek. 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 installation business. Its reputation is backed by hundreds of positive reviews on customer review websites.
It 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 be sure to mention that you want Energy Star windows when inquiring.
How much does Window World cost in Walnut Creek?Though pricing is not readily available on Window World's website, it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to know for sure.

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 provides the best warranty in Walnut Creek. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This window installation company has been in business since 2002 and currently services 27 states nationwide. Hundreds of positive reviews on customer review websites back the provider's reputation.
It 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 windows are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Walnut Creek?While prices are not readily available on Universal's website, 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 request a quote on the company's website.
We strive to be unbiased and transparent by describing pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Replacement Companies in Walnut Creek
The Glass Guru
Antioch, CA-
Free Quotes
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Reliable Service
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Educational Website
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Excellent Customer Service
Services Offered
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Glass Showers
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Renewal by Andersen of San Francisco
Hayward, CA-
No-Hassle Pricing
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Free Quotes
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Dependable Service
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Educational Website
Services Offered
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
The Glass Guru
Fairfield, CA-
No-Hassle Pricing
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Good Customer Service
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Educational Website
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No-fee Quotes
Services Offered
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Residential Windows
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Glass Showers
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Window Replacement San Leandro
San Leandro, CA-
Free Quotes
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Price Transparency
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Educational Website
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Consistent Workmanship
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Best Exteriors
San Leandro, CA-
Free Quotes
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Good Customer Service
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Price Transparency
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Reliable Appointment Windows
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Berkeley
Berkeley, CA-
Consistent Workmanship
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Arrives on Time
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Best Exteriors
Oakland, CA-
Price Transparency
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Arrives on Time
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Dependable Service
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Educational Website
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Vallejo
Vallejo, CA-
Educational Website
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Dependable Service
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Good Customer Service
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Dublin
Dublin, CA-
Price Transparency
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Timely Service
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Dependable Service
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Helps Educate Customers
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Livermore
Livermore, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Pleasanton
Pleasanton, CA-
Arrives on Time
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No-fee Quotes
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Excellent Customer Service
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No-Hassle Pricing
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement San Francisco
San Francisco, CA-
No-Hassle Pricing
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Helps Educate Customers
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Good Customer Service
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Timely Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Oakland
Oakland, CA-
Educational Website
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No-fee Quotes
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Dependable Service
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Good Customer Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Alameda
Alameda, CA-
Good Customer Service
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Reliable Service
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Helps Educate Customers
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Arrives on Time
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Redwood City
Pleasanton, CA-
Dependable Service
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Excellent Customer Service
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Price Transparency
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Helps Educate Customers
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Roxy Glass
Morton Ave, CA-
Educational Website
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Free Quotes
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Window Replacement Fremont
Fremont, CA-
Free Quotes
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Price Transparency
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Helps Educate Customers
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Good Customer Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Walnut Creek
Walnut Creek, CA-
Excellent Customer Service
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No-fee Quotes
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Reliable Service
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Concord
Concord, CA-
Excellent Customer Service
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Price Transparency
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Free Quotes
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Helps Educate Customers
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Union City
Union City, CA-
Excellent Customer Service
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Timely Service
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Price Transparency
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Consistent Workmanship
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement San Mateo
San Mateo, CA-
Free Quotes
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Excellent Customer Service
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Educational Website
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Best Exteriors
Oakland, CA-
No-Hassle Pricing
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Consistent Workmanship
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Timely Service
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No-fee Quotes
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Hayward
Hayward, CA-
Dependable Service
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Educational Website
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Vacaville
Vacaville, CA-
Helps Educate Customers
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Arrives on Time
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Dependable Service
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Good Customer Service
Services Offered
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Architectural Glass
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Fast Delivery
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
How Installing Energy-Efficient Windows in Walnut Creek Saves You Money
There are quite a few perks of switching to energy-efficient windows. Some reasons you may want to consider making the switch include the following:
- Reduce your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can lower your carbon footprint by about 12%, according to Energy Star.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
- Save on electricity bills: After you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% because you'll use less energy to heat or cool your home.
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help increase the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Walnut Creek
Each window installer provides various services and has varying price points depending on a few factors.
How Much Do New Windows Cost?
Typically, homeowners in Walnut Creek can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at about $600. These numbers vary based on the specifics of your installation, such as material, the location of your home, type, size, number of windows and more.
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 many years of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Walnut Creek homeowners $657+ each year after replacing single-pane windows.
Costs will also vary based on the material of your frame. Aluminum frames cost the least. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made using 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?
The first thing to ask yourself when getting new windows is: Do you need a full-frame installation or a pocket installation?
Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are most common when you want a different style for your windows or when it has a great amount of rot or deterioration. Full-frame installations are more comprehensive and will increase overall costs. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations less labor-intensive and costly. However, if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installation company should be able to help you choose what's best for your needs. In Walnut Creek, the decision will mostly be based on how old your home is and if there's any moisture damage. Wood can decay if it's not properly maintained over the years, so it's good to have a professional check on your frames and window sills.
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
- Large serice area
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
How We Choose the Best Window Installers in Walnut Creek
EcoWatch reviews differ from most reviews since we look at these companies through a sustainability lens. We have assessed the best window replacement companies in Walnut Creek mostly based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.
Work Quality
When picking new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand you choose. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If most customers don't have nice feedback about their service from a certain installer, it won't be featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers try to keep costs as low as possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. That's why window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Walnut Creek's climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Walnut Creek window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Walnut Creek, CA Window Replacement FAQs
How much does a window install cost?
The national average cost of installing one window is about $600 but can range from $200 to $1,200, based on several factors. The price is often dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
Which type of window should I get?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models that have the blue Energy Star certification — they're certified energy-efficient by the U.S. Department of Energy.
Do you really have to use a window installation company?
You should use a window installation company whenever you want new windows. Installing windows is a involved process that can take a lot of time, so it's best handled by the professionals.
How do you know it's time to replace your windows?
Windows typically have a lifespan of about 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have them looked at by an expert to determine if they need any repairs or replacements.
Should I replace my windows all at once?
If you're upgrading your windows because of energy-efficiency, replacing all the windows at the same time is the only way to gain that benefit. On the other hand, if you have just one or two windows that are damaged or leaky, you can replace just those.