20 Best Window Companies in Covina, CA (2023 Reviews)
Looking to upgrade your windows? We've got you covered in this list of the top window installation companies.
We analyzed all the top-rated window companies in Covina and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Although renewable 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 considerable impact on home energy conservation. Traditional or damaged windows could lead to having higher electricity bills during the winter or summer months.
Thankfully, helping you save energy with upgraded windows also helps our goals of reducing energy usage for the environment.
Unlike other review sites, EcoWatch ranks window replacement companies on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Covina
The EcoWatch Reviews team evaluated several window installation companies across Covina to narrow our list down to the best ones. The installers mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Covina. Window World has been in the window installation industry for around 27 years.
Window World may be the company for you if you want one 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 WindowsThere are a wide variety of window types that Window World offers, some of which are Energy Star products. 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 Covina?Even though pricing information is not available on Window World’s website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate information.

Milgard Windows & Doors
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EnergyStar Partner
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Wide network of installers
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Lifetime warranty available
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Entails hiring third-party contractors
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Limited additional services
Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has been in the window installation business for around 60 years. Hundreds of positive reviews from customers online back the provider's reputation.
If you’re looking for a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience, Milgard may be the right company for you.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Covina?Milgard does not mention prices on its website, but it offers different kinds of windows at varying price points. Getting a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for around 27 years. Hundreds of positive reviews from customers online back the provider's reputation.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the right company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen appeals to eco-conscious consumers by providing 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 Covina?Andersen does not mention prices 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. Getting a free quote on its website is the best way to know for sure.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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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. Universal has been in the window business for around 20 years. Its reputation is backed by all the positive reviews from customers online.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThe 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 be sure to mention that you want Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Covina?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. Getting a free quote on its website is the best way to get more accurate pricing information.
One thing to note is that the following companies are national, which means the quality of customer service may depend on your local crew. We have tried to be unbiased and transparent by listing both pros and cons for every company.
More Window Companies in Covina
Renewal by Andersen of Los Angeles
Torrance, CA-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Commercial Windows
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Glass Showers
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Fast Delivery
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Double-Hung
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Sliding Glass
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Residential Windows
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Window Replacement
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Stained Glass
Window World of Los Angeles
Covina, CA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Window Replacement
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Sliding Glass
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Residential Windows
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Bay Windows
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Double-Hung
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Fast Delivery
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Custom Window Designs
American Window Company
Covina, CA-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Energy-Efficient Options
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Double-Hung
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Aluminum Window Frames
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Custom Window Designs
Dreamstyle Remodeling
Irwindale, CA-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Bay Windows
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Fast Delivery
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Full-Service Installations
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Window Replacement
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Glass Showers
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Residential Windows
SoCal Window Pros
San Dimas, CA-
Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
Home Services at The Home Depot
Baldwin Park, CA-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Fast Delivery
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Residential Windows
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Stained Glass
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Custom Window Designs
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Glass Showers
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Commercial Windows
Advance Windows & Doors
Walnut, CA-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Tempered Glass
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Fast Delivery
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Double-Hung
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Residential Windows
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Bay Windows
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Commercial Windows
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Window Replacement
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Custom Window Designs
NagcoGlass
Pomona, CA-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Glass Showers
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Window Replacement
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Energy-Efficient Options
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Commercial Windows
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Residential Windows
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Custom Window Designs
Slater Glass & Mirror
Arcadia, CA-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Custom Window Designs
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Window Replacement
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Glass Showers
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Commercial Windows
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Residential Windows
JK Glass & Mirror Inc
Baldwin Park, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Glass Showers
N.E.U GLASS WINDOW REPAIR
La Puente, CA-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Custom Window Designs
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Window Replacement
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Residential Windows
Vista Window Manufacturing, Inc.
Monrovia, CA-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
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Window Replacement
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Commercial Windows
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Custom Window Designs
All Cities Glass & Screen
Glendora, CA-
Educational Website
Services Offered
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Glass Showers
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Residential Windows
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Commercial Windows
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Window Replacement
J. R. Door & Window Inc
Upland, CA-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Commercial Windows
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Fast Delivery
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Sliding Glass
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Aluminum Window Frames
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Double-Hung
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Window Replacement
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Custom Window Designs
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Residential Windows
Design Windows and Doors Inc.
Ontario, CA-
Timely Service
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Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Commercial Windows
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Aluminum Window Frames
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Sliding Glass
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Custom Window Designs
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Bay Windows
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Double-Hung
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Window Replacement
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Residential Windows
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Energy-Efficient Options
Sears Window Replacement
Montclair, CA-
Timely Service
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Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Sliding Glass
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Glass Showers
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Double-Hung
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Window Replacement
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Bay Windows
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Fast Delivery
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Residential Windows
Family Home Improvements
Whittier, CA-
Price Transparency
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Timely Service
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Sliding Glass
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Residential Windows
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Custom Window Designs
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Glass Showers
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Commercial Windows
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Window Replacement
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Full-Service Installations
Elite Vinyl Windows Inc.
Whittier, CA-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Custom Window Designs
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Energy-Efficient Options
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Sliding Glass
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Residential Windows
Pro Board Up of Pasadena
Pasadena, CA-
Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Residential Windows
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Commercial Windows
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Custom Window Designs
Emerald Mirror & Glass
Yorba Linda, CA-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Glass Showers
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Window Repair
Calculate how much you can expect to pay for window installation and replacement in Covina, CA using our customized window cost calculator.
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 Covina Saves You Money
By switching to energy-efficient windows, you and your family can benefit in several ways, such as:
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can cut your carbon footprint by about 12%, according to Energy Star.
- Better temperature control in your home: Energy-efficient windows can reduce how much heat is lost through your windows when heating your home.
- Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its value.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Covina
When researching window installation, each company provides varying services and prices. Let's look at some average costs and services.
How Much Do New Windows Cost?
Although the average to replace a single window is around $600, it can range anywhere from $200 to $1,200. Costs will vary significantly depending on the number of windows you need, the current condition of your home, your location and the quality of your products. Many window companies also offer replacement door installations and other add-ons like shutters, coating, baths and more. These extra services will increase your overall project costs.
Bear in mind that energy-efficient windows may cost more, but Energy Star estimates the upgrade will save you between $101 and $583 a year when installing single-pane windows and between $27 and $197 a year when installing double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
Costs will also vary depending on the material you pick for your window frames. Aluminum frames cost the least. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made with wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
The first step of a window replacement is to figure out whether you want a full-frame or pocket installation.
A full-frame installation replaces the total window, including the windowsill, frame, trim and the window panes. As this kind of installation requires more time, it will be more expensive than a pocket installation. A pocket installation means replacing a window within the existing frame, which is generally cheaper than a full-frame installation.
Your window installer can help you decide which type of installation you should get.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Covina
In our hunt to find the most reliable, eco-friendly window installers in Covina, EcoWatch chose the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed window companies all across the state and ranked them based on the following methodology:
Service Area
Because this is a guide for Covina, we only included companies that provide services to the city. There are certainly reputable providers that didn't make our list because they wouldn't be able to serve homeowners in Covina.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each company included on this list to ensure its technicians are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across most other categories, including professionalism, warranty, quality of parts, quality of installation, cost and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try 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
As discussed previously, windows are a serious investment, so you'll want to make sure that investment is protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Covina's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of Covina window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Covina, CA Window Replacement FAQs
What is the typical cost to install windows in a home?
The typical cost to install a single window ranges from $450 to $650. There are several factors that affect how much it costs, such as styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are, your property's location, the number of windows and local labor costs.
What kind of window is the most energy-efficient?
A window's energy efficiency depends on a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installers do?
Window installation professionals go to your house to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is finished.
How often should you replace windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they should probably be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to operate, they may need to be replaced.
Should I replace my windows all at once?
If your windows are more than 20 years old, it's most likely time to replace all of them. At that point, they are usually less efficient, draftier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less time.