28 Best Window Replacement Companies in Westmont, CA (Mar 2023)
Window Companies Near Me

If you're looking to get new windows, our guide to the top window installation companies can help.

We analyzed all the top window installers in Westmont and selected the top 28 based on:

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

By EcoWatch Local Advisors

Updated March 14, 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.

The EcoWatch Reviews team is all about helping Westmont homeowners find eco-conscious solutions for their homes. When it's the middle of summer, your outdated and leaky windows could be making your home more difficult to cool and more uncomfortable for you.

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

Unlike other review sites, EcoWatch ranks window installation companies on energy efficiency while also considering cost, customer satisfaction and service area.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Entails hiring third-party contractors

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • Large serice area
  • Lifetime warranty
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Great industry reputation
  • Manufactures products in-house
  • More expensive than competition

Best Window Replacement Companies in Westmont

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

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

Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has 60 years of experience in the windows business, and it has established itself as one of the most respected companies in Westmont. Its reputation is backed by hundreds of positive reviews on customer 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 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 be sure to mention that you want energy-efficient windows to your Milgard representative when inquiring about services.

How much does Milgard Windows & Doors cost in Westmont?

Prices aren't listed on Milgard's website, but it offers different kinds of windows at varying price points. Getting a free quote on its website is the best way to get more accurate information.

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

Window World

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

Window World has windows expertise in Westmont. Window World has around 27 years of experience in the windows industry, and it currently provides services to 200 locations nationwide. Many positive reviews on customer review websites back the provider's reputation.

It has established itself as a company that 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 is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.

How much does Window World cost in Westmont?

Window World does not list prices 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 request 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 Award-winning company
  • Pros icon Great industry reputation
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Westmont. Andersen has around 27 years of experience in the windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Hundreds of positive reviews on customer review websites back the provider's reputation.

Andersen may be the company for you if you're looking for one 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 Windows

Renewal by Andersen's commitment to sustainability shows in its energy-efficient window offerings. 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?

Prices aren't listed 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. You can inquire about a free quote on its website for more information about the cost.

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 provider has 20 years of experience in the windows business, and it has become one of the most respected companies in Westmont. Hundreds of positive reviews from customers online back the company's reputation.

It has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

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. Not all of Universal's offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Universal Windows Direct cost in Westmont?

Prices are not available on Universal's website because the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, 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. Requesting a free quote on its website is the best way to get more accurate pricing information.

We've recommended installers with good reputations, but note that these are national companies, so the quality of service may differ depending on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for every company reviewed.

More Window Replacement Companies in Westmont

The Glass Guru

Torrance, CA
4.8
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Timely Service
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://theglassguru.com/locations/torrance-ca/
Address: 20934 Normandie Ave, Torrance, CA 90502
Phone: (888) 509-2440

Economy Glass Co West Inc

Santa Monica, CA
4.6
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Dependable Service

Services Offered

  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://economyglasscowest.com/
Address: 1631 Colorado Ave, Santa Monica, CA 90404
Phone: (310) 396-2000

Broadway Glass & Mirror, Inc.

Long Beach, CA
4.6
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Educational Website
  • Pros icon Reliable Appointment Windows
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Doors
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Glass Showers
  • Service icon Architectural Glass

Website: http://www.broadwayglass.com/
Address: 2523 E Broadway, Long Beach, CA 90803
Phone: (562) 434-8405

Smart Window Company

Torrance, CA
4.3
★★★★★
  • Pros icon Dependable Service
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

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

A New View Windows & Doors Inc.

Anaheim, CA
4.3
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Educational Website
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.anewviewwindows.com/
Address: 3445 E La Palma Ave, Anaheim, CA 92806
Phone: (714) 953-7663

Windows N' Things

Canoga Park, CA
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung

Website: https://www.windowsnthings.com/
Address: 21300 Hart St, Canoga Park, CA 91303
Phone: (818) 716-1800

Select Home Improvements

Anaheim, CA
4.2
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://selecthi.com/
Address: 1220 N Fee Ana St, Anaheim, CA 92807
Phone: (855) 405-2426

Metropolitan High Performance Windows

Anaheim, CA
4.1
★★★★★
  • Pros icon Award-Winning
  • Pros icon Dependable Service
  • Pros icon Reliable Appointment Windows
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.mhiwindows.com/
Address: 940 E Orangethorpe Ave g, Anaheim, CA 92801
Phone: (800) 995-8878

Golden Glass

Fullerton, CA
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://goldenglass.com/
Address: 1221 E Orangethorpe Ave, Fullerton, CA 92831
Phone: (714) 449-8989

Tashman Home Center

West Hollywood, CA
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing

Services Offered

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

Website: https://www.tashmans.com/
Address: 7769 Santa Monica Blvd, West Hollywood, CA 90046
Phone: (323) 909-6553

Anaheim Glass

Anaheim, CA
3.9
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Timely Service
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service

Services Offered

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

Website: http://anaheimglass.com/
Address: 542 S Anaheim Blvd, Anaheim, CA 92805
Phone: (714) 535-4940

California Window Masters

Irvine, CA
3.9
★★★★★
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Sliding Glass

Website: https://californiawindowmasters.com/los-angeles/
Address: 2102 Business Center Dr STE 130, Irvine, CA 92612
Phone: (855) 464-7665

Bodie's Glass Service

Westminster, CA
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Arrives on Time

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.bodiesglass.com/
Address: 5722 Westminster Blvd., Westminster, CA 92683
Phone: (714) 898-4602

Window King

Huntington Beach, CA
3.8
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Timely Service
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.windowkingla.com/
Address: 419 Main St Suite # B, Huntington Beach, CA 92648
Phone: (562) 372-0219

Tesla Windows

Buena Park, CA
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.teslawindows.com/
Address: 5300 Beach Blvd suite 110-524, Buena Park, CA 90621
Phone: (562) 674-0544

Anytime Windows and Doors

North Hollywood, CA
3.8
★★★★★
  • Pros icon Dependable Service
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass

Website: http://anytimewindowsanddoors.com/
Address: 10746 Burbank Blvd Suite B, North Hollywood, CA 91601
Phone: (866) 755-6996

GOLDEN BEAR GLASS & WINDOWS LLC

Los Angeles, CA
3.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Heavy Glass
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows

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

American Window Company

Covina, CA
3.7
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Reliable Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options

Website: https://www.americanwindowcompany.com/
Address: 803 N Glendora Ave, Covina, CA 91724
Phone: (626) 967-4043

Cal Replacement Window Company of Orange County

Anaheim, CA
3.7
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Architectural Glass

Website: http://www.calrepwindowsanddoors.com/
Address: 1129 N Kraemer Blvd, Anaheim, CA 92806
Phone: (714) 632-7767

Abel Glass & Screen, Inc.

South Gate, CA
3.7
★★★★★
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://abelglass4414.wix.com/abel-glass
Address: 4414 Firestone Blvd, South Gate, CA 90280
Phone: (323) 566-7201

Frontier Windows & Doors

Canoga Park, CA
3.7
★★★★★
  • Pros icon Timely Service
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Good Customer Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.frontierwindows.net/
Address: 21426 Sherman Way, Canoga Park, CA 91303
Phone: (818) 478-0074

Hardy Windows - Orange County

Placentia, CA
3.7
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.orangecountywindowanddoor.com/
Address: 1639 E Miraloma Ave, Placentia, CA 92870
Phone: (714) 996-1807

Can-Do Windows & Doors

Costa Mesa, CA
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.candoremodeling.com/
Address: Costa Mesa, CA
Phone: (714) 752-3407

Mancino Door & Window, Inc.

Glendora, CA
3.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.mdwdoors.com/
Address: 605 E Rte 66, Glendora, CA 91740
Phone: (626) 334-2525

Window World of Los Angeles

Covina, CA
3.6
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Charitable Giving
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Windows
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldla.com/
Address: 718 Arrow Grand Cir, Covina, CA 91722
Phone: (310) 564-7299

Window World of Orange County

Anaheim, CA
3.6
★★★★★
  • Pros icon Charitable Giving
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

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

Window Professors

San Dimas, CA
3.6
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Arrives on Time

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://windowprofessors.com/
Address: 482 W Arrow Hwy Unit A, San Dimas, CA 91773
Phone: (909) 394-7777

Progressive Insulation & Windows

Chatsworth, CA
3.6
★★★★★
  • Pros icon Reliable Service
  • Pros icon Award-Winning
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: http://www.progressiveiw.com/
Address: 9750 CA-27, Chatsworth, CA 91311
Phone: (800) 500-6200

How Installing Energy-Efficient Windows in Westmont Saves You Money

By upgrading to energy-efficient windows, you can benefit in several ways, such as:

  • Reduce your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 117 pounds.
  • Save money on energy bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you use less energy.
  • Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Westmont

Windows come in different purposes, shapes and styles, so costs and services will vary considerably based on several factors. Below, we detail the average cost and services that you can get from window installers.

How Much Do New Windows Cost?

The typical cost to install one window is about $600 but can range from $200 to $1,200. Costs will differ significantly depending on the quality of your products, the number of windows you need, the current condition of your home and your location. A lot of window companies also offer replacement door installations and other add-ons like coating, baths, shutters and more. These extra services will increase your overall project costs.

With windows, efficiency is one of the most important factors for most homeowners. Efficient windows may cost more upfront, but by increasing the efficiency of your home — particularly if you live in a hot climate — they can give you decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Westmont homeowners $509+ per year after replacing single-pane windows.

Costs will also vary based on the material of your frame. Aluminum frames have the lowest price. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

The first thing to ask yourself when planning to replace your windows is: Should you get a full-frame installation or a pocket installation?

Full-frame installations involve replacing the full window, including the trim, frame and sill. Full-frame installations are necessary when you want a new style or your window has significant rot. Because full-frame installations are more involved, they will increase the overall cost. Pocket installations are simpler and won't carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you may have to get a full-frame installation instead.

If you're still trying to decide which type of installation you need, you can consult with your provider and get their recommendation. The decision mostly depends on how old the frames are and if there's any damage.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Entails hiring third-party contractors

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • Large serice area
  • Lifetime warranty
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Great industry reputation
  • Manufactures products in-house
  • More expensive than competition

How We Choose the Best Window Installers in Westmont

EcoWatch reviews are different from most reviews, as we assess these companies through a sustainability lens. We have decided to evaluate the best window installation companies in Westmont primarily based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified 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 self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find the best window installation company near you.

Work Quality

When it comes to new windows, the quality and range of services often plays just as important of a role in insulation and performance as the brand of window you get. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

We analyzed patterns in recent online reviews to determine the companies with the most consistent customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including warranty, cost, quality of installation, professionalism, quality of parts and more.

Cost

This one is a give-and-take: similar to other services, cheap window installers won't always provide the most quality service. Still, we want to ensure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.

Warranty

As discussed previously, windows are a sizable investment, so you'll want to make sure that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

Westmont, CA Window Replacement FAQs

How much does window installation cost?

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

What are the types of windows?

There are several different kinds of windows you can get for your home, such as double-hung and single-hung windows, slider windows, awning windows, transom windows, picture windows, casement windows and bay windows.

When do I need to use a window installation company?

Unless you're handy and have all of the necessary tools to replace your own windows, we recommend hiring a professional. The window installation process is quite involved and can take anywhere from four to six hours for one window. Although it's tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and safer alternative.

How long does it usually take to install windows?

Each window takes about 30 minutes to install depending 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.

Should I replace all my windows at once?

If your windows are more than 20 years old, it's most likely time to replace all of them. By that point, they are usually less efficient, draftier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less time.

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