20 Best Window Companies in Westmont, CA (2023 Reviews)

Looking to improve your house's insulation? The best window replacement companies can help.

We analyzed all the top-rated window companies in Westmont 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 September 15, 2023

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.

Although clean energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's efficiency can also have a big impact on home energy conservation. Drafty windows could lead to having higher power bills during the winter or summer months.

That's bad for both your bank account and the environment, but one of the top window installation companies can help with that.

So if you're building a new home, renovating or replacing your windows in Westmont, you've found the best place to get started.

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 Westmont

The EcoWatch team examined dozens of installers in Westmont to find the best ones for our readers. The providers in this article scored the best in our review categories, such as energy-efficient offerings, availability, local expertise, price, customer service and more.

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 Westmont. This provider has 27 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business. The company has a lot of positive reviews from customers on online review websites.

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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Westmont?

Window World doesn’t have any cost information listed on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to receive 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 Westmont. This provider has 60 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business. The company has a lot of positive reviews from customers on online review websites.

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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Westmont?

Milgard doesn’t have any cost information listed on its website, but it offers different kinds of windows at varying price points. The best way to get more accurate information is to receive a free quote from the company.

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 Westmont. This provider has 27 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business. The company has a lot of positive reviews from customers on online review websites.

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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Westmont?

Andersen doesn’t have any cost information listed 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. The best way to get more accurate information is to receive 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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has been in business since 2002 and currently services 27 states nationwide. The provider has hundreds of positive reviews from customers on online review websites.

You may want to consider going with Universal if you're interested in a installer that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct’s commitment to sustainability can be seen 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 Westmont?

Prices aren’t mentioned 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. Receiving a free quote on its website is the best way to get more accurate pricing information.

We've recommended companies with shining reputations, but keep in mind some national companies have independently owned locations in Westmont, so the quality of service may depend on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for each company we reviewed.

More Window Companies in Westmont

Renewal by Andersen of Los Angeles

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

Services Offered

  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Stained Glass
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Fast Delivery

Website: https://www.renewalbyandersen.com/window-company/088-los-angeles-ca/about-us
Address: 18700 Crenshaw Blvd, Torrance, CA 90504
Phone: (310) 214-2222

Window World of Orange County

Anaheim, CA
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Fast Delivery
  • Service icon Double-Hung

Website: https://www.windowworldorangecounty.com/
Address: 1534 N State College Blvd, Anaheim, CA 92806
Phone: (714) 709-8885

The Glass Guru

Torrance, CA
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Double-Hung
  • Service icon Aluminum Window Frames
  • Service icon Stained Glass
  • Service icon Window Repair
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Full-Service Installations
  • Service icon Sliding Glass
  • Service icon Commercial Windows

Website: https://www.theglassguru.com/torrance-ca/
Address: 20934 S Normandie Ave, Torrance, CA 90502
Phone: (714) 683-0883

Smart Window Company

Torrance, CA
4.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Tempered Glass
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement

Website: https://smartwindowcompany.com/
Address: 2291 W 205th St Suite 106-A, Torrance, CA 90501
Phone: (310) 946-3697

GreenCal Construction Inc.

Bellflower, CA
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Residential Windows
  • Service icon Window Replacement

Website: https://greencalinc.com/
Address: 9065 Rosecrans Ave, Bellflower, CA 90706
Phone: (714) 790-1750

Triangle Construction, Inc.

Culver City, CA
4.1
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement
  • Service icon Glass Showers
  • Service icon Aluminum Window Frames
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: http://triusa.biz/
Address: 11122 Washington Blvd, Culver City, CA 90232
Phone: (800) 615-7737

Home Services at The Home Depot

Los Angeles, CA
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Fast Delivery

Website: https://www.homedepot.com/l/Wilshire-Union/CA/Los-Angeles/90017/1048/services
Address: 1675 Wilshire Blvd, Los Angeles, CA 90017
Phone: (213) 262-5599

GOLDEN BEAR GLASS & WINDOWS LLC

Los Angeles, CA
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Commercial Windows
  • Service icon Window Replacement

Website: http://www.glassinstalls.com/
Address: 3311 W 3rd St # 421, Los Angeles, CA 90004
Phone: (310) 933-2600

Cornerstone Windows & Patio Doors

Torrance, CA
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Residential Windows
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Sliding Glass

Website: https://cornerstonewindows.com/
Address: 3545 Lomita Blvd unit a, Torrance, CA 90505
Phone: (310) 325-4700

Discount Window And Door

Redondo Beach, CA
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: https://discountwd.com/
Address: 2202 Artesia Blvd, Redondo Beach, CA 90278
Phone: (424) 610-9098

LUXE windows + doors

5168 W Pico Blvd, CA
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: https://www.luxewd.com/
Address: LUXE windows doors, 5168 W Pico Blvd, Los Angeles, CA 90019
Phone: (310) 666-0051

Cut Once Remodeling

Torrance, CA
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Window Replacement

Website: http://www.cutonceremodeling.com/
Address: 22828 Lockness Ave, Torrance, CA 90501
Phone: (888) 655-0125

American Home Center

Downey, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Fast Delivery
  • Service icon Residential Windows

Website: https://www.americanhomecentersocal.com/
Address: 12144 Brookshire Ave, Downey, CA 90242
Phone: (562) 644-4788

Lion Windows And Doors

Los Angeles, CA
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Energy-Efficient Options
  • Service icon Residential Windows

Website: http://www.lionwindowsanddoors.com/
Address: 1838 Sawtelle Blvd, Los Angeles, CA 90025
Phone: (310) 800-1585

Cook's Doors & Windows

Lawndale, CA
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Residential Windows
  • Service icon Custom Window Designs

Website: http://www.cooksdoorsandwindows.com/
Address: 14410 Hawthorne Blvd, Lawndale, CA 90260
Phone: (310) 679-2212

Courtesy Glass & Mirror

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

Services Offered

  • Service icon Window Repair
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Window Replacement

Website: http://www.courtesyglass.net/
Address: 17306 Woodruff Ave, Bellflower, CA 90706
Phone: (562) 866-4222

Sears Heating and Air Conditioning

Santa Fe Springs, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Window Replacement

Website: https://www.searshomeservices.com/locations/hi/hvac/ca/santa-fe-springs
Address: 10395 Slusher Dr, Santa Fe Springs, CA 90670
Phone: (562) 269-5642

Batchelor Windows & Doors Inc.

Signal Hill, CA
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Fast Delivery
  • Service icon Custom Window Designs

Website: http://batchelorwindowsanddoors.com/
Address: 2508 N Palm Dr Suite 102, Signal Hill, CA 90755
Phone: (562) 209-6034

Elite Vinyl Windows Inc.

Whittier, CA
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options
  • Service icon Residential Windows

Website: http://www.elitevinylwindows.com/
Address: 11648 Washington Blvd, Whittier, CA 90606
Phone: (562) 945-7700

Pella Window and Door Showroom of South Pasadena, CA

S Pasadena, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Stained Glass
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Aluminum Window Frames
  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Custom Window Designs

Website: https://www.pella.com/locations/ca/south-pasadena/
Address: 266 Monterey Rd, S Pasadena, CA 91030
Phone: (626) 792-9878
Westmont Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Westmont, 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 Westmont Saves You Money

When you upgrade to energy-efficient windows, you may see a few perks, including:

  • Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if you have an older home.
  • Reduce your carbon footprint: By using less energy once upgrading to energy-efficient windows, you'll also be cutting your carbon dioxide emissions by about 12%, according to Energy Star.
  • Save money on energy bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you'll require less energy to heat or cool your home.
  • Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Westmont

Windows come in various styles, shapes and purposes, so costs and services will differ remarkably depending on your project. Below, we go over the typical cost and services that you'll find from window replacement companies.

How Much Do New Windows Cost?

The average cost to replace one window is about $600 but can range from $200 to $1,200. How much it will cost depends on several factors, including size, the location of your home, type, material, number of windows and more.

Whether or not you pick energy-efficient windows is another factor that will influence the cost. These will almost always cost more than other windows, but on the other hand, you can save about $509 a year on your energy bills in Westmont.

The cost of your window installation will also vary based on the type of material you choose for the frames. Wood windows are generally the most expensive, though it depends if they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

There are generally two types of window installation services: full-frame and pocket installations.

Full-frame installations are necessary when you want a new style or your window has a lot of deterioration. With this service, your professionals will replace the full window, including the sill, frame and trim. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are simpler and won't carry as large a bill, but you can't do this kind of installment if you have any pre-existing rot or water damage.

If you're still trying to decide which type of installation you should get, you can talk to your installer and get their recommendation. The choice mostly depends on how old the frames are and if there's any damage present.

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 Westmont

The EcoWatch Reviews team is different from other reviewers because we assess these companies through a sustainability lens. We've assessed the best window installation companies in Westmont mostly based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows have been shown to lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

This one is 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 certain that you're looking for professionals who do a great job installing windows. We've vetted each installer featured in our guide to make sure its technicians are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including warranty, professionalism, cost, quality of parts, quality of installation and more.

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

As discussed previously, windows are a sizable investment, so you'll want to be certain that investment is well protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have a proven track record in the industry. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Westmont, CA Window Replacement FAQs

What is the average cost to replace windows in a home?

The typical cost to replace a window ranges from $450 to $650. There are many factors that affect how much it costs, which include local labor costs, how energy-efficient the windows are, the materials used in designing the windows, styles and sizes of windows, your property's location and the number of windows.

Which type of window should I get?

Generally, double-pane windows are more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you'll get the most energy-efficient windows, look for models that have the blue Energy Star certification — that means they're certified energy-efficient by the U.S. Department of Energy.

When do I have to use a window installation company?

You should use a window installation professional whenever you want to replace your windows. Installing windows is a involved process that can be difficult to do on your own, so it's best handled by the professionals.

Should I replace my windows all at once?

If your windows are more than 20 years old, you probably need to replace all of them. At that point, they are usually less efficient, draftier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less time.

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