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10 Best Window Replacement Companies in Los Gatos, CA

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Written By David Cusick

Last Updated June 2024

Upgrading your windows can be rather costly, but is a great way to increase the energy efficiency and value of your home. Outdated windows can cost you in electric bills — about an extra $461 a year in Los Gatos. The Department of Energy estimates that 25–30% of your house’s heat or cool air could be going out your windows. Picking a window installer can be time-consuming, which is why we've compiled a list of the best window installation companies in Los Gatos.

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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 Los Gatos

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

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

Good customer service

Educational website

Free assessment

Price transparency

Services Offered

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

Roxy Glass

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

Good customer service

Price transparency

Free assessment

Timely service

Educational website

Services Offered

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

Best Exteriors

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1999 Harrison St #10219, Oakland, CA 94612 (510) 327-0277 bestexteriors.com

Good customer service

Free assessment

Timely service

Educational website

Price transparency

Services Offered

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

Super Mario Glass Inc

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

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Timely service

Good customer service

Free assessment

Educational website

Services Offered

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

Sunset Glass Inc

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4301 Irving St, San Francisco, CA 94122 (415) 664-1626 sunsetglassinc.com

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Services Offered

Mirrors
Tempered glass
Glass doors
Metal frames
Wood frames
Window replacement/installation
Vinyl frames
Glass showers
Fiberglass frames

North Glass Windows & Doors

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

Price transparency

Good customer service

Free assessment

Services Offered

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

Celtic Glass, Inc.

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106 Burrows St, San Francisco, CA 94134 (415) 468-0980 celticglassinc.com

Educational website

Good customer service

Free assessment

Price transparency

Services Offered

Window replacement/installation
Glass showers
Glass repair
Energy-efficient options
Wood frames
Window repair
Mirrors
Bay windows
Vinyl frames
Glass doors

J & M Windows and Glass

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

Timely service

Price transparency

Good customer service

Free assessment

Educational website

Services Offered

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

Window Factory

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2100 Redwood Hwy, Greenbrae, CA 94904 (415) 924-3300 bayareawindowfactory.com

Free assessment

Good customer service

Educational website

Services Offered

Metal frames
Window replacement/installation
Wood frames
Glass doors
Bay windows
Vinyl frames
Fiberglass frames

Winning Windows

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6114 La Salle Ave, Oakland, CA 94611 (510) 338-1234 winningwindows.com

Timely service

Price transparency

Free assessment

Good customer service

Services Offered

Vinyl frames
Wood frames
Window replacement/installation
Glass doors
Bay windows
Fiberglass frames
Double-hung
Glass showers
Energy-efficient options
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 Los Gatos?

Window installation and replacement costs vary based on several factors, including the number and size of the windows, how difficult your windows are to access or install, and the materials you choose. On average, homeowners in Los Gatos should expect to spend about $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 greatly improve your home's value, insulation, noise reduction, appearance, and comfort. Some clear signs it's time for new windows include the following:

  • Discomfort and high energy bills from poor window insulation.
  • Windows that are difficult to close, open, and lock properly due to wear and age.
  • Cold air and drafts coming in from old, loose-fitting windows.
  • Inefficient and outdated window styles that take away from your home’s curb appeal.
  • Condensation issues, fogging between window panes, or rotting window frames letting in moisture.

How To Choose a Window Company

For a successful window replacement, you need to find an installation contractor with proven expertise. Below, we cover the most important considerations when selecting a window installer.

Experience

Find well-established local installers with lots of experience. Installers that have been installing windows locally for many years are more likely to know the local climate and how to best meet your needs. Request 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. Proper certification shows that a provider has been appropriately trained in installation best practices. Ensure installers are employees rather than subcontractors. Verify that the technicians working on your home have the right certifications.

Reputation

Spend time reading through online reviews, checking the Better Business Bureau (BBB), and asking for local references. Review customer feedback to make sure that a company delivers consistent quality workmanship and great service. Avoid companies with complaints of poor work or unfinished jobs.

Process

The right company will take time to provide you with a detailed project plan, timeline, expectations, and reviews of all material and installation options. Beware of unclear quotes or timelines that lack clear and specific information. Look for regular communication throughout the process to avoid surprises down the road.

Warranties

Look for window companies that offer assurances on their installations, and that offer warranties on products and labor. This shows faith in their work. Also seek out unlimited lifetime warranties that can transfer to new homeowners.

Materials

Verify that your window company works with long-lasting, durable brands, offers power-saving window options, and fits your budget. Look for window options with enhanced UV protection, design flexibility, and good energy ratings. Check whether the materials come with their own manufacturer warranties.

Frequently Asked Questions About Window in Los Gatos, CA

In Los Gatos, the best time to install windows is during the winter when the temperature is not as high, so the windows can fit and settle properly. A good local window installer in Los Gatos will be able to tell you when the best time is to install windows on your house.

The best type of replacement window for your Los Gatos home will vary based on the age of your home, as well as your style preference and budget. You'll want to consider the style of your home — such as if it's older — so your new windows match. Wooden windows can provide a traditional look and appearance, while vinyl windows are more popular in more modern homes. Fiberglass windows are also a popular choice, as they can be energy efficient and durable.

Windows made from vinyl, wood, or fiberglass tend to last the longest, with some lasting for close to 45 years. Vinyl windows are especially durable and low-maintenance, making them an excellent choice if you want windows that can last a long time. Double or triple glazing can help reduce your heating and cooling bills in the long run. This is especially helpful during Los Gatos' hot summers.

The process for installing windows typically begins with measuring the old windows and ordering new ones. After that, a professional installer will prep the work area, take out the old windows, and install the new ones. Once this is done, the installer will trim out the space and finish by caulking the window.

After window installation, it's important to check for any air leaks and make sure the windows are properly sealed. You should also clean the windows regularly to prevent debris from building up and leading to damage. Additionally, you should check the window sills and frames regularly to ensure that the seals are not deteriorating or breaking.

Yes, most window companies provide financing options. Some installers offer low-interest loans, although you may not qualify if your income is on the higher end, while other companies provide special financing plans with agreements and conditions that vary depending on the project.

Window replacement companies in Los Gatos typically offer a variety of services, such as installation, repair, window maintenance, cleaning, window tinting, and weatherproofing.

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