20 Best Window Companies in Los Gatos, CA (2024 Reviews)

Are you looking to upgrade your windows? Our list of the best window installation companies can help you pick the right one for you.

We analyzed all the top-rated window companies in Los Gatos and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated February 01, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

The EcoWatch Reviews team is all about helping Los Gatos homeowners make their homes more eco-friendly. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.

Replacement windows improve the insulation in your home, not only making you more comfortable during the summer and winter, but also saving you money and helping the environment.

Efficient windows are especially important in Los Gatos, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $562 each year.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

Best Window Installation & Replacement Companies in Los Gatos

The EcoWatch Reviews team researched dozens of installers across the country to find the best window installation companies for our readers. We assessed the companies based on their energy-efficient offerings, local experience, customer service, coverage area, price and more.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Los Gatos. Andersen has over 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia.

It 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 Windows

Renewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. A 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.

How much does Renewal by Andersen cost in Los Gatos?

Prices aren’t displayed on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to request a free quote from the company.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World provides windows expertise in Los Gatos. Window World has over 27 years of experience in the windows industry, and it currently serves 200 locations nationwide.

It 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 Windows

Window World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Los Gatos?

Prices aren’t displayed on Window World’s website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to request a free quote from the company.

Milgard Windows & Doors logo
FAST QUOTE
as little as 30 seconds
Excellent Reputation

Milgard Windows & Doors

★★★★★
BBB Rating: A
Locations: West Coast
Founded: 1962
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Wide network of installers
  • Pros icon Lifetime warranty available
Cons:
  • Pros icon Entails hiring third-party contractors
  • Pros icon Limited additional services

Milgard Windows & Doors provides the best local installation in Los Gatos. Milgard has over 60 years of experience in the windows industry, and it currently serves Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties.

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 Windows

Milgard Windows & Doors offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want 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 Los Gatos?

Prices aren’t displayed on Milgard’s website, but it offers different kinds of windows at varying price points. The best way to know for sure is to request a free quote from the company.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct provides the best warranty in Los Gatos. Universal has over 20 years of experience in the windows industry, 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 Windows

Universal Windows Direct offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Los Gatos?

Prices aren’t displayed on Universal’s website, but 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, which means the quality of customer service may depend on your local team. We have tried to be unbiased and transparent by including pros and cons for every company.

More Window Companies in Los Gatos

Renewal by Andersen of San Francisco

Hayward, CA
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Storm Doors
  • Service icon Andersen
  • Service icon Sliding Glass Doors
  • Service icon Commercial Windows
  • Service icon Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Skylights

Website: https://www.renewalbyandersen.com/window-company/890-san-francisco-ca/retailer
Address: 30806 Santana St, Hayward, CA 94544
Phone: (510) 803-3110

GENERAL B CONTRACTOR

San Jose, CA
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass Doors
  • Service icon Aluminum Frames
  • Service icon Double-Hung
  • Service icon Milgard
  • Service icon Bay Windows
  • Service icon Window Install & Replacement
  • Service icon Vinyl Frames

Website: http://www.generalbcontractor.com/
Address: 262 Hillsdale Ave, San Jose, CA 95136
Phone: (408) 999-1111

American Window Specialist

Campbell, CA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Window Repair
  • Service icon Bay Windows

Website: https://americanwindowspecialists.com/
Address: 1550 Dell Ave i, Campbell, CA 95008
Phone: (408) 484-7676

Sunlight Concepts | Natural Daylighting and Ventilation System - Solatube Dealer

Santa Clara, CA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Window Install & Replacement
  • Service icon Skylights

Website: https://sunlightconcept.com/
Address: 1130 Walsh Ave, Santa Clara, CA 95050
Phone: (408) 844-0081

Integrity Windows & Doors

San Jose, CA
4.7
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Andersen
  • Service icon Fiberglass Frames
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Wood Frames
  • Service icon Sliding Glass Doors
  • Service icon Glass Doors
  • Service icon Simonton
  • Service icon Aluminum Frames
  • Service icon Milgard

Website: http://www.408windows.com/
Address: 4238 Monterey Hwy B, San Jose, CA 95111
Phone: (408) 225-2600

American Vision Windows

Santa Clara, CA
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Vinyl Frames
  • Service icon Stained Glass
  • Service icon Energy-Efficient Options
  • Service icon Window Install & Replacement
  • Service icon Fiberglass Frames
  • Service icon Wood Frames
  • Service icon Aluminum Frames
  • Service icon Sliding Glass Doors

Website: https://www.americanvisionwindows.com/locations/san-jose/
Address: 400 Mathew St, Santa Clara, CA 95050
Phone: (408) 444-8941

Argonaut Window & Door, Inc.

Cupertino, CA
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Milgard
  • Service icon Window Install & Replacement
  • Service icon Kolbe
  • Service icon Velux
  • Service icon Marvin
  • Service icon Commercial Windows
  • Service icon Bay Windows
  • Service icon Aluminum Frames
  • Service icon Andersen

Website: https://www.argowin.com/
Address: 10612 S De Anza Blvd, Cupertino, CA 95014
Phone: (800) 430-7535

California Window & Fireplace - Window, Door & Fireplace Sales & Installation in Silicon Valley

Campbell, CA
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass Doors
  • Service icon Skylights
  • Service icon Window Install & Replacement
  • Service icon Marvin
  • Service icon Velux
  • Service icon Milgard
  • Service icon Bay Windows

Website: https://www.calwindow.com/
Address: 180 Kennedy Ave, Campbell, CA 95008
Phone: (408) 379-9930

Bay Builders and Remodeling Inc.

San Jose, CA
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Bay Windows

Website: http://baybuilders.com/
Address: 800 Charcot Ave #100, San Jose, CA 95131
Phone: (408) 583-6797

AMC Glass Company, Inc.

San Jose, CA
4.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Milgard
  • Service icon Wood Frames
  • Service icon Window Install & Replacement
  • Service icon Mirrors
  • Service icon Vinyl Frames
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Aluminum Frames
  • Service icon Skylights

Website: https://www.amcglass.com/
Address: 1999 Monterey Hwy # 110, San Jose, CA 95112
Phone: (408) 288-8206

My Window & Door Solutions LLC

San Jose, CA
4.2
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Custom Window Designs
  • Service icon Milgard
  • Service icon Bay Windows
  • Service icon Simonton
  • Service icon Aluminum Frames
  • Service icon Storm Windows

Website: https://www.mywindowdoorsolutions.com/
Address: 1510 Oakland Rd Ste 130, San Jose, CA 95112
Phone: (408) 437-6274

California Deluxe Windows

Santa Clara, CA
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass Doors
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Vinyl Frames

Website: https://cdwindows.com/about/locations-santa-clara
Address: 3439 De La Cruz Blvd, Santa Clara, CA 95054
Phone: (408) 260-5566

J & M Windows and Glass

Campbell, CA
3.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Mirrors
  • Service icon Milgard
  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Window Install & Replacement
  • Service icon Sliding Glass Doors
  • Service icon Double-Hung
  • Service icon Skylights
  • Service icon Marvin
  • Service icon Glass Showers
  • Service icon Velux
  • Service icon Bay Windows
  • Service icon Aluminum Frames
  • Service icon Andersen

Website: https://www.jandmglass.com/
Address: 745 E McGlincy Ln, Campbell, CA 95008
Phone: (408) 371-7255

Super Glass

Campbell, CA
3.3
★★★★★
  • Pros icon Educational Website

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Commercial Windows

Website: http://www.superglassonline.com/
Address: 201 Lost Lake Ln, Campbell, CA 95008
Phone: (408) 374-7676

Fast Glass

San Jose, CA
3.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Tempered Glass
  • Service icon Bay Windows
  • Service icon Window Repair

Website: http://www.fastglasscompany.com/
Address: 975 S Bascom Ave, San Jose, CA 95128
Phone: (408) 924-0611

WindStar Windows & Doors

San Jose, CA
3.1
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Aluminum Frames
  • Service icon Wood Frames

Website: http://windstarwd.com/
Address: 2770 S Bascom Ave, San Jose, CA 95124
Phone: (408) 559-8976

Cambrian Glass & Mirror Co

Campbell, CA
3.1
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Mirrors
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Window Repair
  • Service icon Window Install & Replacement
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Aluminum Frames
  • Service icon Custom Glass

Website: https://cambrianglass.com/
Address: 841 Union Ave, Campbell, CA 95008
Phone: (408) 377-2060

TT Glass and Windows

San Jose, CA
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Commercial Windows
  • Service icon Mirrors
  • Service icon Window Repair
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Window Install & Replacement
  • Service icon Sliding Glass Doors

Website: http://ttglasswd.com/
Address: 123 E Alma Ave Ste 20, San Jose, CA 95112
Phone: (408) 288-7778

Home Works Construction, Inc.

San Jose, CA
3.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Install & Replacement

Website: http://www.homeworksco.com/
Address: 605 Camina Escuela, San Jose, CA 95129
Phone: (408) 850-6477

Alum Rock Hardware, Windows & Doors

San Jose, CA
3.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Window Repair
  • Service icon Custom Window Designs

Website: http://alumrockhardwarewindowsdoors.com/
Address: 2243 Alum Rock Ave, San Jose, CA 95116
Phone: (408) 258-6084
Los Gatos Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Los Gatos, CA using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

How Installing Energy-Efficient Windows in Los Gatos Saves You Money

There are several perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the change are the following:

  • Save on energy bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of residential energy use. Switching to energy-efficient windows can help decrease that number, which helps you save more on your bills.
  • Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
  • Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes usually have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.
  • Reduce your carbon footprint: In Los Gatos, you can reduce your indirect greenhouse gas emissions by about 117 pounds per year after you switch to energy-efficient windows.

Estimated Cost of Window Replacement in Los Gatos

Let’s take a look at the cost of replacing your windows and the types of services offered by installers.

How Much Do New Windows Cost?

Even though the national average cost of installing a single window is about $600, it can range from $200 to $1,200. How much it will cost depends on several factors, such as number of windows, size, the location of your home, type, material and more.

It’s important to bear in mind that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Los Gatos homeowners $562+ a year when replacing single-pane windows.

Another factor that influences the overall cost is the material of the frame you choose. Aluminum frames are usually the least pricey and are sturdy and light, but they provide poor insulation. On the other hand, wood frames are the most expensive, as 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?

In general, there are two types of window replacement services companies provide: full-frame and pocket installations.

A full-frame installation is a total window replacement. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, including insulation and drip edges, which raise the overall cost of the project. It’s also worth noting that you may have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are simpler and won’t cost as much, but you can’t do this kind of installment if you have any pre-existing rot or water damage.

If you’re unsure which kind of window installation service you should get, your installer can help you out. Typically, the choice depends on factors such as the age and condition of the home, the type of building material, budget and time restrictions.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

How We Choose the Best Window Installers in Los Gatos

In our search to find the most reliable, eco-friendly window installers in Los Gatos, the EcoWatch Reviews team evaluated many companies before settling on these. We’ve evaluated the best window replacement companies in Los Gatos mainly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to cut your energy 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 installation companies that serve a wide variety of states and cities so you can find the right window installation company near you.

Work Quality

We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each company in our guide to ensure its contractors are well-qualified and that the company has gotten tons 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 nice things to say about their experience with a certain window installation company, 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 as low as possible. When analyzing providers’ prices, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Due to Los Gatos’s climate, homeowners need to be wary of rot, low efficiency and water damage. We factored in local experience to reflect the ability of Los Gatos window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

Los Gatos, CA Window Replacement FAQs

What is the typical cost to install windows in a home?

The national average cost to install a single window is around $600 but can range from $200 to $1,200, depending on a variety of factors. The price is usually dependent on the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

What are the most common types of replacement windows?

The most common kinds of windows for homes are casement windows, picture windows, transom windows, double-hung and single-hung windows, slider windows, bay windows and awning windows.

Can you replace your own windows?

While it is possible to install your own windows, doing so requires a lot of time and handiness. Hiring a professional can help guarantee that the installation is done properly and that you won’t have to spend the time and effort to do it yourself.

How long does window installation usually take?

Each window takes about 30 minutes to install based on the kind of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.

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