29 Best Window Replacement Companies in Glendora, CA (Jan 2023)
Window Companies Near Me
Thinking about replacing your home's windows? We've got all the information you need in this list of the best window installation companies.
We analyzed all the top window installers in Glendora and selected the top 29 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated January 12, 2023
Why you can trust EcoWatch
A guide on the top window installation companies in Glendora may not seem like the most interesting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might think. Traditional, outdated windows could lead to spending more on power bills during the winter or summer months.
That's also bad for the environment because the extra energy used by drafty windows increases your carbon footprint.
Efficient windows are particularly important in Glendora, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $506 each year.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Affordability
Window World
- Large serice area
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
Best Window Replacement Companies in Glendora
The EcoWatch team evaluated dozens of installers in Glendora to find the top window installation companies for our readers. The companies in this article scored the best in our review categories, which include energy-efficient offerings, customer service, local expertise, availability, price and more.

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
Milgard Windows & Doors has the best local installation in Glendora. This provider has 60 years of experience in the windows industry, and it has established itself as one of the best companies in the business. Its reputation is backed by hundreds of positive reviews from customers online.
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 WindowsMilgard Windows & Doors caters 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 Glendora?Though prices are not readily available on Milgard's website, it offers different kinds of windows at varying price points. For more accurate information on pricing, you can request a quote from the company.

Window World
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Large serice area
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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 offers windows expertise in Glendora. This company has been in business since 1995 and 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 WindowsWindow World caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Glendora?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can ask for a quote from the company.

Renewal by Andersen
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Award-winning company
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Great industry reputation
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Manufactures products in-house
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More expensive than competition
Renewal by Andersen provides the best availability in Glendora. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by hundreds of positive reviews from customers online.
You may want to consider choosing Andersen if you're looking for a installer 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 WindowsRenewal by Andersen has 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 Glendora?Prices are not available on Andersen's website, as the cost of window installment varies greatly depending on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can request a free quote on its website for more information about pricing.

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 about 20 years of experience in the windows industry, and it currently serves 27 states nationwide. The provider has plenty of positive reviews from customers on online review websites.
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 windows are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Glendora?Universal does not list prices on its 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. You can ask for a free quote on its website for more information about pricing.
We strive to stay unbiased and transparent by including pros and cons for every installer. Additionally, any partnerships do not influence our rankings.
More Window Replacement Companies in Glendora
The Glass Guru
Torrance, CA-
Consistent Workmanship
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Reliable Appointment Windows
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Award-Winning
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Excellent Customer Service
Services Offered
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Glass Showers
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Broadway Glass & Mirror, Inc.
Long Beach, CA-
Reliable Appointment Windows
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Helps Educate Customers
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Price Transparency
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Excellent Customer Service
Services Offered
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Double-Hung
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Doors
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Full-Service Installations
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
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Aluminum Window Frames
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Glass Showers
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Architectural Glass
Smart Window Company
Torrance, CA-
Reliable Service
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No-Hassle Pricing
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Educational Website
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
A New View Windows & Doors Inc.
Anaheim, CA-
Good Customer Service
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Reliable Service
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Free Quotes
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No-Hassle Pricing
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
Select Home Improvements
Anaheim, CA-
Price Transparency
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No-fee Quotes
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Timely Service
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Reliable Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Metropolitan High Performance Windows
Anaheim, CA-
Good Customer Service
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No-fee Quotes
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Dependable Service
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Arrives on Time
Services Offered
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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Golden Glass
Fullerton, CA-
Educational Website
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Price Transparency
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Tempered Glass
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Doors
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Custom Window Designs
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Commercial Windows
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Double-Hung
Veracity Window and Door
Riverside, CA-
Educational Website
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Timely Service
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
Tashman Home Center
West Hollywood, CA-
No-fee Quotes
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Excellent Customer Service
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Anaheim Glass
Anaheim, CA-
Helps Educate Customers
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Arrives on Time
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Reliable Service
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Price Transparency
Services Offered
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Custom Windows
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Fast Delivery
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Residential Windows
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Business Windows
California Window Masters
Irvine, CA-
Consistent Workmanship
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Helps Educate Customers
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Reliable Appointment Windows
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Locally Recognized for Quality
Services Offered
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Sliding Glass
Bodie's Glass Service
Westminster, CA-
Excellent Customer Service
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Reliable Appointment Windows
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Free Quotes
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Price Transparency
Services Offered
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Glass Showers
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Residential Windows
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Custom Window Designs
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Business Windows
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Sliding Glass
Window King
Huntington Beach, CA-
No-Hassle Pricing
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Good Customer Service
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Arrives on Time
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Helps Educate Customers
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Tesla Windows
Buena Park, CA-
Helps Educate Customers
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Good Customer Service
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Consistent Workmanship
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Anytime Windows and Doors
North Hollywood, CA-
Reliable Appointment Windows
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No-fee Quotes
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Good Customer Service
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Helps Educate Customers
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
Design Windows and Doors Inc.
Ontario, CA-
Excellent Customer Service
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Reliable Service
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Reliable Appointment Windows
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No-fee Quotes
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Safe Glass Window Replacement INC
San Bernardino, CA-
Consistent Workmanship
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Good Customer Service
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
GOLDEN BEAR GLASS & WINDOWS LLC
Los Angeles, CA-
Educational Website
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Price Transparency
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Reliable Service
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Business Windows
American Window Company
Covina, CA-
Award-Winning
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Free Quotes
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Reliable Appointment Windows
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Educational Website
Services Offered
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Custom Windows
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Aluminum Window Frames
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Energy-Efficient Options
Cal Replacement Window Company of Orange County
Anaheim, CA-
Educational Website
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Free Quotes
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Good Customer Service
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Locally Recognized for Quality
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Sliding Glass
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Aluminum Window Frames
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Architectural Glass
Abel Glass & Screen, Inc.
South Gate, CA-
Free Quotes
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Good Customer Service
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No-Hassle Pricing
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Helps Educate Customers
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Commercial Windows
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Sliding Glass
Hardy Windows - Orange County
Placentia, CA-
Educational Website
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Award-Winning
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Can-Do Windows & Doors
Costa Mesa, CA-
Helps Educate Customers
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No-fee Quotes
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Mancino Door & Window, Inc.
Glendora, CA-
Helps Educate Customers
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Price Transparency
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Ameristar Windows
Riverside, CA-
Excellent Customer Service
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No-Hassle Pricing
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Educational Website
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No-fee Quotes
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Full-Service Installations
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Double-Hung
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Sliding Glass
Window World of Los Angeles
Covina, CA-
Free Quotes
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Good Customer Service
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Helps Educate Customers
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Charitable Giving
Services Offered
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Custom Window Designs
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Architectural Glass
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Sliding Glass
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Double-Hung
Window World of Riverside County
Riverside, CA-
Free Quotes
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Charitable Giving
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No-Hassle Pricing
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Educational Website
Services Offered
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Custom Window Designs
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Architectural Glass
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Sliding Glass
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Double-Hung
California Showcase Construction
Riverside, CA-
Dependable Service
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Helps Educate Customers
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Free Quotes
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Price Transparency
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Window World of Orange County
Anaheim, CA-
Helps Educate Customers
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No-fee Quotes
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Dependable Service
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Charitable Giving
Services Offered
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Custom Windows
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Architectural Glass
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Glendora Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are a few reasons you may want to think about making the switch:
- Reduce your carbon footprint: In Glendora, you can reduce your indirect greenhouse gas emissions by about 117 pounds per year when you switch to energy-efficient windows.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
- Save money on energy bills: The Department of Energy estimates that heat gained or lost via windows accounts for around 25-30% of energy use in your home. Switching to energy-efficient windows can help decrease that amount, which helps you save more on your bills.
- Protect your investment: If you have an older home, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Glendora
Each window replacement company offers varying services and has varying prices depending on a few factors.
How Much Do New Windows Cost?
On average, Glendora homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at approximately $600. These estimates vary depending on the specifics of your installation, such as number of windows, material, size, the location of your home, type and more.
With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more initially, but by increasing the efficiency of your home — particularly if you live in a hot climate — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Glendora homeowners $506+ a year after replacing single-pane windows.
Costs will also vary depending 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 a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most 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 step when planning an installation is to figure out whether you should get a full-frame or pocket installation.
A full-frame installation is a total window replacement. This service involves taking out the old window, the sill, and the exterior and interior trim. It also involves other materials, such as insulation and drip edges, which increase 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 within its 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.
Your window installation company will be able to recommend the best type for your project. In Glendora, the choice will mostly depend on how much damage there is currently and how old your existing frames are.
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Entails hiring third-party contractors
Best Affordability
Window World
- Large serice area
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
How We Choose the Best Window Installers in Glendora
The EcoWatch Reviews team is different from other reviewers, as we assess these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in Glendora and ranked them based on the following methodology:
Service Area
Because this is a guide for Glendora, we paid more attention to companies that serve the city. There are other reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Glendora.
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 installer featured in our guide to ensure its contractors are well-qualified and that the company has gotten 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 highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across nearly every category, including warranty, professionalism, quality of installation, quality of parts, cost and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a hefty investment, so you'll want to make sure that investment is well protected. Window installation companies that provide 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 installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Glendora, CA Window Replacement FAQs
What is the typical cost to install windows?
The typical cost of installing a single window ranges from $450 to $650. There are a variety of factors that influence the cost, including local labor costs, styles and sizes of windows, your property's location, how energy-efficient the windows are, the number of windows and the materials used in designing the windows.
What type of window is the most energy-efficient?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open are more efficient than windows that do. To be sure you'll have the most energy-efficient windows, look for models with the blue Energy Star certification — they're certified energy-efficient by the U.S. Department of Energy.
When do I have to use a window installation company?
Unless you have home repair skills and have the tools needed to replace your own windows, we recommend hiring the pros. The window installation process is complicated and can take anywhere from four to six hours for one window. Although it's tempting to try to save some money by doing it yourself, hiring a professional is a faster, more efficient and much safer alternative.
Should I replace all my windows at the same time?
If your windows are more than 20 years old, it's probably time to replace all of them. By that point, they are often less efficient, draftier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less stress.