21 Best Window Replacement Companies in Redwood City, CA (2023 Reviews)
Window Companies Near Me
Are you looking to upgrade your windows? Our list of the top window installation companies can help you choose the right one for you.
We analyzed all the top window installers in Redwood City and selected the top 21 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 March 14, 2023
Why you can trust EcoWatch
Whether you're updating for style or have damaged windows, windows play a crucial role in conserving electricity in your home. During the summer months, the last thing you want is your cool air to leak out of your drafty windows.
That's not great for either your bank account or the environment, but one of the best window installation companies can help you with that.
Efficient windows are especially important in Redwood City, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $440 each year.
Best Affordability
Window World
- Great industry reputation
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- More expensive than competition
Best Window Replacement Companies in Redwood City
The EcoWatch Reviews team researched dozens of installers in Redwood City to find the best window installation companies for our readers. The companies mentioned in this article scored the best in our review categories, which include energy-efficient offerings, customer service, availability, price, local expertise and more.

Window World
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Great industry reputation
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Large serice area
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EnergyStar Partner
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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. This window installation company has been operating since 1995 and currently serves 200 locations nationwide. Its reputation is backed by many positive reviews on customer review websites.
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 right 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 Redwood City?Window World doesn't have any pricing information listed 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 get a quote from the company.

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 Redwood City. Milgard has about 60 years of experience in the window replacement industry. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
If you're looking for a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience, this may be the company for you.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for 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 Redwood City?Pricing details are not available on Milgard's website, as the cost of window installment depends on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. Requesting a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Award-winning company
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Member of US Green Building Council
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Great industry reputation
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More expensive than competition
Renewal by Andersen offers the best availability in Redwood City. This company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. The provider has plenty of positive reviews from customers on online review websites.
You may want to consider picking Andersen if you're looking for 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 is an Energy Star partner and has a variety of energy-efficient windows. 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 Redwood City?Pricing details are not available on Andersen's website since the cost of window installment depends on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on pricing, you can get a quote from the company.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has about 20 years of industry experience, and it currently serves 27 states nationwide.
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 Redwood City?Prices are not available on Universal's website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, 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. The best way to get more accurate information is to ask for a free quote from the company.
We've recommended providers with shining reputations, but keep in mind these are national companies, so your service may depend on your local crew. We have tried to be unbiased and transparent by describing pros and cons for each company we reviewed.
More Window Replacement Companies in Redwood City
Renewal by Andersen of San Francisco
Hayward, CA-
Locally Recognized for Quality
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Reliable Service
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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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 Windows
Quality First Home Improvement, Inc.
Campbell, CA-
Good Customer Service
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Reliable Appointment Windows
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Award-Winning
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Price Transparency
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-
Dependable Service
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Price Transparency
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No-fee Quotes
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Excellent Customer Service
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 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 San Leandro
San Leandro, CA-
No-fee Quotes
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Reliable Appointment Windows
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Price Transparency
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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
San Leandro, CA-
Free Quotes
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Price Transparency
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Reliable Appointment Windows
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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 Windows
Window Replacement Berkeley
Berkeley, CA-
Consistent Workmanship
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Good Customer Service
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Helps Educate Customers
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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 Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Best Exteriors
Oakland, CA-
Arrives on Time
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Helps Educate Customers
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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 Dublin
Dublin, CA-
Price Transparency
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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 Window Designs
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Double-Hung
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Sliding Glass
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Bay Windows
Window Replacement Livermore
Livermore, CA-
Helps Educate Customers
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Reliable Appointment Windows
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Good Customer 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 Pleasanton
Pleasanton, CA-
Price Transparency
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Good Customer Service
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Helps Educate Customers
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Reliable 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 San Francisco
San Francisco, CA-
No-Hassle Pricing
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Good Customer Service
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No-fee Quotes
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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 Windows
Window Replacement Oakland
Oakland, CA-
Reliable Service
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Timely Service
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Educational Website
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Excellent 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
Window Replacement Alameda
Alameda, CA-
Excellent Customer Service
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Dependable Service
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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 Redwood City
Pleasanton, CA-
Helps Educate Customers
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No-fee Quotes
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Reliable 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
Roxy Glass
Morton Ave, CA-
Good Customer Service
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Helps Educate Customers
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Free Quotes
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Price Transparency
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-
Good Customer Service
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Consistent Workmanship
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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 Windows
Window Replacement Walnut Creek
Walnut Creek, CA-
Dependable Service
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Free Quotes
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Timely Service
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Excellent 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
Window Replacement Union City
Union City, CA-
Helps Educate Customers
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Dependable Service
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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 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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Timely Service
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Helps Educate Customers
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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 Windows
Best Exteriors
Oakland, CA-
Helps Educate Customers
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Arrives on Time
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Dependable 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 Hayward
Hayward, CA-
Price Transparency
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Good Customer Service
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No-fee Quotes
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Dependable 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 Redwood City Saves You Money
By switching to energy-efficient windows, you and your family can benefit in several ways, such as:
- 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: Because energy-efficient windows reduce how much energy you need to heat or cool your home, the switch can help you save around $440 annually on your energy bills in Redwood City.
- Protect your investment: When you have an older home, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its value.
- Decrease your carbon footprint: By using less energy after switching to energy-efficient windows, you'll also be cutting your carbon dioxide emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Redwood City
Windows come in various shapes and sizes, so costs and services will differ tremendously. Here are the average costs and services that you'll find from window installation companies.
How Much Do New Windows Cost?
On average, Redwood City homeowners can anticipate their window installations to range from $250 to $1,200. The average cost is at approximately $600. Costs will differ significantly depending on the number of windows you need, the quality of your products, the current condition of your home and your location. A lot of window companies also offer replacement door installations and other add-ons like coating, shutters, baths and more. These extra services will increase your overall project costs.
It's also worth noting that energy-efficient windows will almost always cost more initially, but Energy Star estimates that upgrading the windows on your Redwood City home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you'll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
We advise requesting free quotes from several window companies to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
There are typically two types of window replacement services: full-frame and pocket installations.
A full-frame installation is a total window replacement. It involves removing the old window, the windowsill, and the exterior and interior trim. It also involves other materials, such as insulation and drip edges, which raise the total cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations more simple and affordable. But, if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installation company can advise you on the best type for your project. In Redwood City, the choice will mostly be based on the efficiency of your home and the condition of your existing frames.
Best Affordability
Window World
- Great industry reputation
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- More expensive than competition
How We Choose the Best Window Installers in Redwood City
EcoWatch reviews are different from most reviews since we're examining these companies through a sustainability lens. We've decided to assess the best window installers in Redwood City mostly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Redwood City so you can find the best window installation company near you.
Work Quality
When choosing new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand you opt for. We do rate window installers higher 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 good things to say about their experience with a certain window installation company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installers may not provide the most quality service. On the other hand, we want to ensure we're highlighting companies that offer a range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a considerable investment, so you'll want to make sure that investment is well protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Redwood City's climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of Redwood City window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Redwood City, CA Window Replacement FAQs
How much does window installation cost?
The typical cost of replacing one window can range between $450 and $650. There are a variety of factors that influence the price, including your property's location, how energy-efficient the windows are, the materials used in designing the windows, styles and sizes of windows, the number of windows and local labor costs.
Which type of window should I get?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not 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 — this means they're certified energy-efficient by the U.S. Department of Energy.
What do window installers do?
Window installers travel to your house to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is done.
How often do you need to replace windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to operate, they may be in need of replacement.
Should I replace my windows all at once?
If your windows are more than 20 years old, it's most likely time to replace all of them. By that point, they are often less efficient, draftier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less stress.