23 Best Window Replacement Companies in Gilroy, CA (2023 Reviews)
Window Companies Near Me
Are you looking to upgrade your windows? Our guide to the top window installation companies can help you choose the right one for you.
We analyzed all the top window installers in Gilroy and selected the top 23 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated May 04, 2023
Why you can trust EcoWatch
Although eco-friendly energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home's energy efficiency can also have a large impact on home energy conservation. When it's the middle of summer, your old and drafty windows could be making your home harder to cool and costing you more in power bills.
Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.
Unlike other review sites, EcoWatch ranks window installation companies based on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Affordability
Window World
- Large serice area
- Low prices relative to competitors
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- No lifetime warranty
Best Window Replacement Companies in Gilroy
The EcoWatch team researched dozens of window providers across Gilroy to narrow our list down to the top ones. The providers in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

Milgard Windows & Doors
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EnergyStar Partner
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Wide network of installers
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Lifetime warranty available
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Limited additional services
Milgard Windows & Doors provides the best local installation in Gilroy. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. This window installation company has been operating since 1962 and currently provides services to Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Hundreds of positive reviews on customer review websites back the provider's reputation.
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 WindowsThe company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised. Not all of Milgard's offerings are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.
How much does Milgard Windows & Doors cost in Gilroy?Milgard doesn't have any cost information displayed on its website, but it offers different kinds of windows at varying price points. The best way to get more accurate pricing information is to get a free quote from the company.

Window World
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Quality of service will depend on your area
Window World provides windows expertise in Gilroy. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of industry experience, and it currently provides services to 200 locations nationwide. Its reputation is backed by hundreds of positive reviews on customer review websites.
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 want Energy Star windows when inquiring.
How much does Window World cost in Gilroy?Even though prices are not readily available on Window World's website, it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to get a free quote from the company.

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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No lifetime warranty
Renewal by Andersen has the best availability in Gilroy. Andersen has been in the window installation industry for around 27 years. The company has many glowing reviews from customers online.
It has established itself as a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsA 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. Not all of Andersen's offerings are Energy Star certified, so be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Gilroy?Prices are not available on Andersen's website, as the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you'd like more accurate pricing information, you can ask for 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 provides the best warranty in Gilroy. Universal has around 20 years of experience in the window replacement sector.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the perfect provider for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct caters to eco-conscious consumers by providing energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Gilroy?Pricing information is not available on Universal's website because 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 know for sure is to request a free quote from the company.
One thing to note is that the following companies are national, meaning the quality of the service may depend on your local team. We have tried to be unbiased and transparent by describing pros and cons for each company.
More Window Replacement Companies in Gilroy
Bull`s Glass & Screen Center
San Jose, CA-
Free assessment
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Good Customer Service
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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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Bay Windows
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Sliding Glass
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Commercial Windows
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Fast Delivery
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Custom Window Designs
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Tempered Glass
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Double-Hung
American Vision Windows
Santa Clara, CA-
Free assessment
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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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Fast Delivery
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Glass Showers
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Aluminum Window Frames
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Custom Window Designs
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Stained Glass
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
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Double-Hung
A-1 On Track Sliding Door Repair
Campbell, CA-
Educational Website
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Price Transparency
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Good Customer Service
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Timely Service
Services Offered
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Commercial Windows
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Sliding Glass
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Double-Hung
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Fast Delivery
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Stained Glass
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Residential Windows
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Custom Window Designs
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Bay Windows
Integrity Windows & Doors
San Jose, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Timely Service
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Free assessment
Services Offered
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Sliding Glass
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Residential Windows
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Aluminum Window Frames
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Bay Windows
San Jose Glass
Campbell, CA-
Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Glass Showers
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Tempered Glass
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Commercial Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
J & M Windows and Glass
Campbell, CA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Residential Windows
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Aluminum Window Frames
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Glass Showers
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Bay Windows
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Fast Delivery
Brothers Home Improvement, Inc.
San Jose, CA-
Free assessment
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Educational Website
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Award-Winning
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Double-Hung
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Custom Window Designs
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Sliding Glass
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Energy-Efficient Options
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Stained Glass
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Bay Windows
My Window & Door Solutions
San Jose, CA-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Double-Hung
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Aluminum Window Frames
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Commercial Windows
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Bay Windows
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Glass Showers
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Residential Windows
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Sliding Glass
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Custom Window Designs
Garlic City Remodeling Inc.
Gilroy, CA-
Timely Service
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Full-Service Installations
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Glass Showers
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Fast Delivery
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Sliding Glass
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Residential Windows
Vineyard Blinds & Shades
Santa Clara, CA-
Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Glass Showers
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Sliding Glass
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Commercial Windows
Budget Blinds of Palo Alto, Cupertino, and Saratoga
Cupertino, CA-
Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Commercial Windows
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Glass Showers
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Aluminum Window Frames
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Residential Windows
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Fast Delivery
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Custom Window Designs
Blackout Window Tinting
Gilroy, CA-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Bay Windows
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Double-Hung
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Fast Delivery
American Window Specialist
Campbell, CA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Double-Hung
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Commercial Windows
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Residential Windows
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Bay Windows
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Sliding Glass
A1 Bay Area Glass
San Jose, CA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Double-Hung
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Sliding Glass
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Glass Showers
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Custom Window Designs
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Energy-Efficient Options
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Commercial Windows
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Bay Windows
Lighthouse Windows
Santa Cruz, CA-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Bay Windows
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Residential Windows
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Sliding Glass
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Aluminum Window Frames
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Commercial Windows
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Custom Window Designs
AMC Glass Company, Inc.
San Jose, CA-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Custom Window Designs
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Bay Windows
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Tempered Glass
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Glass Showers
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Aluminum Window Frames
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Residential Windows
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Commercial Windows
Precision Garage Door of San Jose
San Jose, CA-
Free assessment
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Good Customer Service
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Price Transparency
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Award-Winning
Services Offered
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Residential Windows
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Commercial Windows
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Bay Windows
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Custom Window Designs
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Double-Hung
Blossom Hill Glass
San Jose, CA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Glass Showers
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Residential Windows
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Bay Windows
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Double-Hung
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Sliding Glass
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Commercial Windows
Transparent Glass Coatings
Soquel, CA-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Commercial Windows
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Bay Windows
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Residential Windows
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Custom Window Designs
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Double-Hung
Wardell Auto Interiors & Tops
Santa Clara, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Full-Service Installations
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Residential Windows
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Custom Window Designs
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Fast Delivery
Almaden Window & Door
San Jose, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Double-Hung
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Bay Windows
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Sliding Glass
Home Services at The Home Depot
Santa Clara, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Bay Windows
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Residential Windows
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Fast Delivery
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Stained Glass
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Commercial Windows
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Glass Showers
Advanced Blind and Shade
Soquel, CA-
Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Aluminum Window Frames
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Glass Showers
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Commercial Windows
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Bay Windows
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Custom Window Designs
How Installing Energy-Efficient Windows in Gilroy Saves You Money
Switching to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here are more ways upgrading your windows could help you:
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Save on electricity bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% since you use less energy.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 117 pounds.
Estimated Cost of Window Replacement in Gilroy
Let's take a look at the cost of window replacement and the types of services offered by installers.
How Much Do New Windows Cost?
Although the national average of installing one window is about $600, it can range from $200 to $1,200. How much it will cost varies based on several factors, like the location of your home, size, number of windows, material, type and more.
Keep in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you replace single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.
Something else that affects the total cost is the material of the frame you select. Aluminum frames are generally the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames are the most expensive because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.
What Services do Window Installers Offer?
There are typically two types of window installation services: full-frame and pocket installations.
Full-frame installations are usually recommended when you want a new style or your window has significant deterioration. With this service, your installers will replace the total window, including the frame, trim and sill. A pocket installation entails replacing a window without taking out the complete frame, which is usually less expensive than a full-frame installation.
If you're hiring a reputable window installation company, your company can advise you on the best type for your project. In Gilroy, the choice will mostly depend on how much damage there is currently and how old your existing frames are.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Affordability
Window World
- Large serice area
- Low prices relative to competitors
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- No lifetime warranty
How We Choose the Best Window Installers in Gilroy
EcoWatch reviews differ from other reviews, as we look at these companies through a sustainability lens. We've reviewed the top window installers in Gilroy mostly based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find the right window installation company near you.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each installer on this list to make sure its contractors are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have good feedback about their service from a certain installer, you won't see it featured on EcoWatch.
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 providers' prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Gilroy's climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of Gilroy window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Gilroy, CA Window Replacement FAQs
How much should window installation cost?
The typical cost to replace a window can range between $450 and $650. There are several factors that influence how much it costs, such as the number of windows, how energy-efficient the windows are, the materials used in designing the windows, styles and sizes of windows, local labor costs and your property's location.
What are the types of windows?
There are various kinds of windows you can get for your home, including bay windows, transom windows, double-hung and single-hung windows, slider windows, awning windows, casement windows and picture windows.
What do window installers do?
Window installers will do the entire process — from replacing your old windows with new ones to cleaning up afterward. Additionally, many companies offer window manufacturing, customization and repairs.
How do you know it's time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to 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.
Should I replace all my windows at the same time?
If your windows are greater than 20 years old, it's most likely time to replace all of them. At that point, they are often less efficient, leakier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less time.