22 Best Window Replacement Companies in Foster City, CA (Jan 2023)
Window Companies Near Me
Are you looking to upgrade your windows? Our guide to the best window installation companies can help you choose the right one for you.
We analyzed all the top window installers in Foster City and selected the top 22 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 doing renovations or have windows that need repairs, windows play a vital role in conserving energy in your home. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.
Replacement windows improve your home's insulation, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
So if you're constructing a new home, renovating or updating your windows in Foster City, this is the best place to get started.
Best Affordability
Window World
- Great industry reputation
- Lifetime warranty
- Large serice area
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best Window Replacement Companies in Foster City
The EcoWatch team evaluated dozens of installers in Foster City to find the best window companies for our readers. The companies we've included in this article scored best in our categories: energy-efficient offerings, availability, customer service, price and more.

Window World
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Great industry reputation
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Lifetime warranty
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Large serice area
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Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation industry for about 27 years. Many positive reviews from customers online back the provider's reputation.
It has established itself as a company 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 offerings are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.
How much does Window World cost in Foster City?Prices aren't available on Window World's website, but it's known for offering some of the most affordable window installations around. If you'd like more accurate information, you can request a quote on the company's website.

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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Limited additional services
Milgard Windows & Doors has the best local installation in Foster City. 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 sector.
It 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 WindowsThere are a wide range of window types that Milgard Windows & Doors offers, some of which are Energy Star products. 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 Foster City?Pricing details are not available on Milgard's website, as the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. If you'd like more accurate pricing information, you can get a quote on the company's website.

Renewal by Andersen
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Manufactures products in-house
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Great industry reputation
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen has the best availability in Foster City. Andersen has around 27 years of experience in the window installation industry. The company has a lot of positive reviews from customers online.
You may want to consider opting for Andersen if you're interested in a installer 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's commitment to sustainability shows in its energy-efficient window offerings. 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 Foster City?Even though prices are not available on Andersen's website, 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 more accurate information, you can request a quote on the company's website.

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 Foster City. Universal has been in the window business for around 20 years. The provider has a lot of glowing reviews from customers online.
Universal may be the company for you if you're interested in one that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct is an Energy Star partner with 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 be sure to mention that you want energy-efficient windows to your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in Foster City?Even though 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. Receiving a free quote on its website is the best way to get more accurate information.
Please note that the following companies are national, meaning the quality of the service may vary depending on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for every provider.
More Window Replacement Companies in Foster City
Renewal by Andersen of San Francisco
Hayward, CA-
No-fee Quotes
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Excellent Customer Service
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Reliable Service
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Arrives on Time
Services Offered
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Custom Windows
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Business 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
Quality First Home Improvement, Inc.
Campbell, CA-
No-Hassle Pricing
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Arrives on Time
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Excellent Customer Service
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Award-Winning
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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Custom Window Designs
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Double-Hung
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Sliding Glass
Global Glass Enterprise Inc.
San Jose, CA-
Good Customer Service
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No-Hassle Pricing
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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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Architectural Glass
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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 San Leandro
San Leandro, CA-
Helps Educate Customers
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Free Quotes
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Arrives on Time
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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-
Reliable Service
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Educational Website
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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 & Bow Windows
Window Replacement Berkeley
Berkeley, CA-
Reliable Service
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No-Hassle Pricing
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Free Quotes
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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 Windows
Best Exteriors
Oakland, CA-
No-fee Quotes
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Helps Educate Customers
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Reliable Appointment Windows
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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 Windows
Window Replacement Dublin
Dublin, 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 Livermore
Livermore, CA-
Reliable Service
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Excellent Customer Service
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No-fee Quotes
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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
Window Replacement Pleasanton
Pleasanton, CA-
Timely Service
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Reliable Service
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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 Windows
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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-
Consistent Workmanship
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Good Customer Service
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Price Transparency
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Free 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
Window Replacement Oakland
Oakland, CA-
Price Transparency
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Helps Educate Customers
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No-fee Quotes
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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 & Bow Windows
Window Replacement Alameda
Alameda, CA-
Educational Website
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No-fee Quotes
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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 Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Window Replacement Redwood City
Pleasanton, CA-
Good Customer Service
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Consistent Workmanship
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Arrives on Time
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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 & Bow Windows
Roxy Glass
Morton Ave, CA-
Good Customer Service
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Free Quotes
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Price Transparency
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Educational Website
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 Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Window Replacement Fremont
Fremont, CA-
Timely Service
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Good Customer Service
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Reliable Service
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Free 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
Window Replacement Walnut Creek
Walnut Creek, CA-
Price Transparency
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Consistent Workmanship
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Helps Educate Customers
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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 Concord
Concord, CA-
Reliable Service
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Free Quotes
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Educational Website
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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 Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Union City
Union City, CA-
Good Customer Service
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No-Hassle Pricing
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Arrives on Time
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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-
Good Customer Service
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Consistent Workmanship
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Free Quotes
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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 Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Best Exteriors
Oakland, CA-
Excellent Customer Service
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Educational Website
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Free Quotes
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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 Windows
Window Replacement Hayward
Hayward, CA-
Dependable Service
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No-Hassle Pricing
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Good Customer 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
How Installing Energy-Efficient Windows in Foster City Saves You Money
When you switch to energy-efficient windows, you may see a few perks, including:
- Save money on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of residential energy use. Upgrading to energy-efficient models can help lower how much you have to pay, therefore saving you about 12% more on your bills.
- Reduce your carbon footprint: In Foster City, you can reduce your indirect greenhouse gas emissions by about 117 pounds per year after you install energy-efficient windows.
- 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 raise the value of your house if you decide to sell.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Foster City
When looking into window installation, each company provides varying services and prices. Let's go over some average costs and services.
How Much Do New Windows Cost?
Generally, Foster City homeowners can expect their window replacements to range from $250 to $1,200. The average cost is at approximately $600. How much it will cost depends on several factors, such as material, the location of your home, number of windows, type, size and more.
Keep in mind that energy-efficient windows may cost more, but Energy Star estimates the upgrade will save you between $101 and $583 a year when replacing single-pane windows and between $27 and $197 a year when replacing double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.
Costs will also vary based on the material of your frame. Aluminum frames have the lowest price. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made with wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
The first step of a window replacement is to decide whether you want a full-frame or pocket installation.
Full-frame installations require replacing the full window — the sill, frame, trim and all. These are typically done when you want a different style for your windows or when it has a great amount of damage. Full-frame installations are more comprehensive and will increase overall costs. 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 type of installment if you have any pre-existing rot or water damage.
If you're hiring a reputable window installation company, your company will be able to advise you on the best type for your project. In Foster City, the choice will mostly depend on how much damage there is currently and how old your existing frames are.
Best Affordability
Window World
- Great industry reputation
- Lifetime warranty
- Large serice area
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
How We Choose the Best Window Installers in Foster City
In our hunt to make your home improvements easier and more eco-friendly in Foster City, the EcoWatch team chose the above companies as the top window installation companies in the city. We have reviewed the top window installation companies in Foster City mainly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve the Foster City area so you can find the right window installation company near you.
Work Quality
We're certain that you're looking for professionals who do a great job installing windows. We've vetted each company included on this list to ensure its contractors are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, warranty, cost, quality of parts, quality of installation and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs low when 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 significant investment, so you'll want to make sure that investment is protected. Window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Foster City's climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Foster City window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Foster City, CA Window Replacement FAQs
How much should a window install cost?
The national average cost of installing a single window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is generally influenced by 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 upfront but can save you hundreds of dollars a year in energy bills.
Which type of window is the best?
Generally, double-pane windows are more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.
Can I replace my own windows?
While you can install your own windows, doing so requires a lot of time and handiness. Hiring a professional can help ensure that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.
What time of year is the best time to replace my windows?
Replacement windows can be installed at any time, but autumn might be the best season. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the home, so the temperature outside isn't necessarily a big factor. What's most important is that the weather should be dry.
How often should you replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they should probably be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may be in need of replacement.