10 Best Window Replacement Companies in Gilroy, CA

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Last Updated: February 25, 2025

Windows play an important role in your house's appearance and energy efficiency. Upgrading your windows is an excellent way to increase the value of your home. In Gilroy, you could save almost $562 per year on your electric bills after upgrading your windows. Drafty windows can decrease your home’s energy efficiency by up to 30%, according to the Department of Energy. Our list of the best window installation companies in Gilroy will help you select the right installer for you.

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Top Pick
4.1/5
  • Great quality
  • Free assesment
  • Timely Service
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
Best Customer Service
4.0/5
  • Award winning company
  • Products made in the US
  • Knowledgeable sales representatives

Top 10 Best Window Replacement Companies in Gilroy

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen of San Francisco

Renewal by Andersen of San Francisco Logo

Our Rating

User Rating

30806 Santana St, Hayward, CA 94544 (510) 803-3110 renewalbyandersen.com

Free assessment

Educational website

Good customer service

Price transparency

Services Offered

Bay windows
Window replacement/installation
Glass doors
Skylights
Double-hung

Roxy Glass

Roxy Glass Logo

Our Rating

User Rating

7401-A Morton Ave, Newark, CA 94560 (510) 400-7788 bayareawindowglass.com

Educational website

Free assessment

Timely service

Price transparency

Good customer service

Services Offered

Triple pane glass
Bay windows
Tempered glass
Glass showers
Glass doors
Custom glass
Window replacement/installation
Energy-efficient options
Glass repair
Mirrors

Super Mario Glass Inc

Super Mario Glass Inc Logo

Our Rating

User Rating

544 Lewelling Blvd b, San Leandro, CA 94579 (510) 324-8798 supermarioglass.net

Good customer service

Free assessment

Timely service

Price transparency

Educational website

Services Offered

Glass doors
Bay windows
Window repair
Window replacement/installation
Screen repair
Glass showers
Custom glass
Mirrors
Glass repair

North Glass Windows & Doors

North Glass Windows & Doors Logo

Our Rating

User Rating

105 Main St, Ben Lomond, CA 95005 (831) 336-2288 northglass.net

Price transparency

Good customer service

Free assessment

Services Offered

Glass showers
Custom glass
Skylights
Glass repair
Window replacement/installation
Glass doors
Mirrors
Window repair

J & M Windows and Glass

J & M Windows and Glass Logo

Our Rating

User Rating

745 E McGlincy Ln, Campbell, CA 95008 (408) 371-7255 jandmglass.com

Price transparency

Free assessment

Timely service

Good customer service

Educational website

Services Offered

Bay windows
Energy-efficient options
Double-hung
Glass showers
Window replacement/installation
Mirrors
Glass doors
Skylights

American Vision Windows

American Vision Windows Logo

Our Rating

User Rating

400 Mathew St, Santa Clara, CA 95050 (408) 444-8941 americanvisionwindows.com

Educational website

Price transparency

Free assessment

Services Offered

Fiberglass frames
Double-hung
Wood frames
Vinyl frames
Energy-efficient options
Window replacement/installation
Glass doors

Glass Doctor of The Bay Area

Glass Doctor of The Bay Area Logo

Our Rating

User Rating

773 Berry Ave, Hayward, CA 94544 (510) 264-5277 glassdoctor.com

Educational website

Good customer service

Price transparency

Services Offered

Glass showers
Bay windows
Mirrors
Glass repair
Energy-efficient options
Window replacement/installation
Custom glass
Window repair

Home Services at The Home Depot

Home Services at The Home Depot Logo

Our Rating

User Rating

1617 N Carpenter Rd, Modesto, CA 95351 (209) 226-4326 homedepot.com

Free assessment

Price transparency

Educational website

Good customer service

Services Offered

Glass showers
Window replacement/installation
Storm/impact windows
Glass doors
Energy-efficient options
Mirrors
Vinyl frames
Custom window designs
Screen repair

California Deluxe Windows

California Deluxe Windows Logo

Our Rating

User Rating

3439 De La Cruz Blvd, Santa Clara, CA 95054 (408) 260-5566 cdwindows.com

Educational website

Good customer service

Price transparency

Services Offered

Bay windows
Window replacement/installation
Wood frames
Custom window designs
Energy-efficient options
Double-hung
Glass doors
Vinyl frames

Tommy's Glass Service Inc

Tommy's Glass Service Inc Logo

Our Rating

User Rating

21 S Pearl St, Salinas, CA 93905 (831) 758-4721 tommysglass.com

Price transparency

Good customer service

Services Offered

Custom glass
Roof windows
Glass repair
Energy-efficient options
Glass showers
Skylights
Mirrors
Window replacement/installation
Bay windows
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Gilroy?

Window installation and replacement costs are influenced by several factors, including how difficult your windows are to access or install, the number and size of the windows, and the materials you choose. On average, homeowners in Gilroy should expect to spend around $300 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Installing new energy-efficient windows can significantly enhance your home's value, appearance, insulation, noise reduction, and comfort. Some clear indicators it's time for new windows include the following:

  • Windows that are difficult to close, open, and lock properly due to age and wear.
  • Condensation issues, fogging between window panes, or rotting window frames that let in moisture.
  • Outdated and inefficient window styles that detract from your home’s curb appeal.
  • Cold air and drafts coming in through old, loose-fitting windows.
  • High energy bills and discomfort due to poor insulation around windows.

How To Choose a Window Company

Hiring an experienced window installation company contributes to good results and a great experience. Below, we outline the main criteria for selecting a qualified window installer.

Experience

Find well-established local installers with lots of experience. Installers that have served Gilroy homeowners for years are more likely to understand the local climate and how to best meet your needs. Ask for references from recent customers to confirm a company’s reputation.

Certifications

Look for installers that are backed by major window manufacturers and accredited by top industry associations, including the Fenestration and Glazing Industry Alliance, formerly known as the AAMA. Appropriate accreditation indicates that a provider has received suitable training in quality installation methods. Ensure installers are employees, not subcontractors, and verify that any technicians assigned to your job hold the right certifications.

Reputation

Spend time going through online reviews, verifying with the Better Business Bureau (BBB), and asking for local references. Review customer feedback to confirm that the company regularly provides good workmanship and customer service. Avoid companies with complaints of shoddy or unfinished work.

Process

The best window installers will supply a detailed project plan and schedule, clear expectations, and an overview of product and installation options. Avoid companies that offer unclear quotes or timelines that don't provide specifics upfront. Look for consistent contact throughout the process to avoid surprises once work gets underway.

Warranties

Look for window installers that offer assurances on their installations, and that provide warranties on products and labor. This indicates confidence in their work. Also seek out unlimited lifetime warranties that can be transferred to new homeowners.

Materials

Make sure the window company offers durable, long-lasting window options and top energy-saving window brands that fit your budget. Look for design flexibility, good energy ratings, and enhanced UV protection. Check that the window materials also include manufacturer warranties.

Frequently Asked Questions About Window in Gilroy, CA

In Gilroy, the optimal time to install windows is during the winter when the temperatures are not as high, so the windows can fit and adjust properly. A professional local window installer in Gilroy will be able to explain when the best time is to install windows on your house.

The best type of replacement window for your Gilroy home will depend on your home's age, as well as your style preference and budget. You'll want to consider the style of your home — such as if it's more modern — so your new windows match. Wooden windows can give a traditional look and feel, while vinyl-framed windows are more popular in newer homes. Fiberglass windows are also a popular choice, since they can be energy efficient and long-lasting.

The most expensive window types are those with multiple moving parts such as double-hung and casement windows. They are more complicated than single-hung windows, and so are more costly. Single-hung windows are the most budget-friendly on the market. Vinyl and aluminum are the most affordable frame options.

The installation process for windows typically takes a day or two depending on the number of windows to be installed. Professional window installers will be able to provide an estimate on the time it will take to complete the installation process, but you can expect it to take around 30 minutes per window.

Replacing your own windows can be a difficult task, especially in Gilroy, where temperatures can get quite hot. It's generally best to get a professional window installer. Their knowledge and experience ensures your windows are securely installed and that you get the most out of your investment.

Hiring a professional window installer helps guarantee the job is done correctly. Professional installers will measure in order to get a perfect fit and use the right techniques and materials to ensure your windows are properly sealed and fitted. Additionally, professional installers are likely to have access to higher quality materials and more experience than the average homeowner, so you can count on your windows to be installed correctly and last for years to come.

Other Gilroy, CA Home Services

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