23 Best Window Replacement Companies in Gilroy, CA (Jan 2023)
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 January 12, 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 Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Award-winning company
- No lifetime warranty
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
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 offers the best local installation in Gilroy. 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 installation industry. The provider has many positive reviews from customers online.
You may want to consider going with Milgard 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.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors is an Energy Star partner and has 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 ask your Milgard representative when inquiring about services.
How much does Milgard Windows & Doors cost in Gilroy?Pricing details are not available on Milgard's website, as the cost of window replacement depends 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 information, you can receive 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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Award-winning company
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No lifetime warranty
Renewal by Andersen offers the best availability in Gilroy. Andersen has about 27 years of experience in the windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by hundreds of positive reviews from customers online.
You may want to consider picking Andersen if you're looking for 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 WindowsRenewal by Andersen is an Energy Star partner offering a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Gilroy?Andersen does not detail prices on its website, but 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 to know for sure, you can request a quote on the company's website.

Window World
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EnergyStar Partner
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Large serice area
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in Gilroy. Window World has over 27 years of industry experience, and it currently provides services to 200 locations nationwide.
If you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the perfect company for you.
Energy Efficiency of Window World WindowsThere are a wide range of window types that Window World offers, 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 Gilroy?Prices are not available on Window World's website, as the cost of window installment differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to ask for a free 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 provides the best warranty in Gilroy. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has about 20 years of experience in the windows industry, and it currently serves 27 states nationwide. Many positive reviews on customer review websites back the provider's reputation.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct's commitment to sustainability shows in its 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?While prices are not readily available on Universal's website, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. If you'd like to know for sure, you can inquire about a quote on the company's website.
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
Quality First Home Improvement, Inc.
Campbell, CA-
Reliable Appointment Windows
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Locally Recognized for Quality
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Excellent Customer Service
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Dependable Service
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Global Glass Enterprise Inc.
San Jose, CA-
Excellent Customer Service
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Reliable Service
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Helps Educate Customers
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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
Heritage Home Solution
San Jose, CA-
Free Quotes
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Reliable Service
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Sliding Glass
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Aluminum Window Frames
A1 Bay Area Glass
San Jose, CA-
Excellent Customer Service
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Helps Educate Customers
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Integrity Windows & Doors
San Jose, CA-
Free Quotes
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Arrives on Time
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Excellent Customer Service
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Educational Website
Services Offered
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Sliding Glass
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Bay & Bow Windows
American Vision Windows
Santa Clara, CA-
Educational Website
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Consistent Workmanship
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Stained Glass
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Sliding Glass
J&M Windows and Glass, Inc
Campbell, CA-
Dependable Service
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Price Transparency
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Educational Website
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Excellent Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
North Glass Windows & Doors
Ben Lomond, CA-
Good Customer Service
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No-Hassle Pricing
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Educational Website
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Free Quotes
Services Offered
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Custom Windows
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Glass Showers
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Business Windows
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Sliding Glass
AK Windows Inc.
Cupertino, CA-
Consistent Workmanship
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Free Quotes
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Excellent Customer Service
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Educational Website
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Brothers Home Improvement, Inc.
San Jose, CA-
Helps Educate Customers
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No-Hassle Pricing
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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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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
My Window & Door Solutions
San Jose, CA-
Good Customer Service
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No-Hassle Pricing
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Free Quotes
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Consistent Workmanship
Services Offered
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
A-1 On Track Sliding Door Repair
Campbell, CA-
Educational Website
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Timely Service
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Dependable Service
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Bull's Glass & Screen Center
San Jose, CA-
No-fee Quotes
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Price Transparency
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Fast Delivery
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Tempered Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Almaden Window & Door
San Jose, CA-
No-fee Quotes
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Supports Charities
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Dependable Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
Hollister Gold Coast Glass, LLC
Hollister, CA-
Price Transparency
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No-fee Quotes
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Good Customer Service
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Reliable Appointment Windows
Services Offered
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Glass Showers
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Custom Windows
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Residential Windows
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Commercial Windows
A1 Quality Construction (Window & Door Specialists)
Campbell, CA-
Educational Website
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Consistent Workmanship
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Good Customer Service
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Free Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Sliding Glass
Transparent Glass Coatings
Soquel, CA-
No-fee Quotes
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Consistent Workmanship
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Good Customer Service
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Double-Hung
Lighthouse Windows
Santa Cruz, CA-
Educational Website
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Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Fairway Glass Company
Monterey, CA-
Price Transparency
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Good Customer Service
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Glass Showers
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Sliding Glass
Alcoa Glass Co
Soquel, CA-
No-fee Quotes
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Excellent Customer Service
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Residential Windows
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Tempered Glass
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Custom Window Designs
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Business Windows
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Double-Hung
AMERICAN WINDOW SPECIALIST
Campbell, CA-
No-fee Quotes
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Educational Website
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Consistent Workmanship
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No-Hassle Pricing
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
Milgard Windows & Doors
Hollister, CA-
No-Hassle Pricing
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Good Customer Service
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Helps Educate Customers
Services Offered
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Architectural Glass
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Glasswork By Design
Salinas, CA-
Price Transparency
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Free 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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Glass Showers
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Custom Window Designs
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Commercial Windows
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Sliding Glass
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 Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Award-winning company
- No lifetime warranty
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
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.