20 Best Window Companies in Glendale, CO (2023 Reviews)
Looking to replace your windows? We've got all the information you need in this list of the top window installation companies.
We analyzed all the top-rated window companies in Glendale 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 eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house's energy efficiency can also have a considerable impact on home energy conservation. When it's the middle of summer, your outdated and drafty windows could be making your home harder to cool and costing you more in power bills.
That's bad news for both your bank account and the environment, but one of the top window installation companies can help you with that.
Unlike other 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 Glendale
The EcoWatch team researched dozens of window installation companies across Glendale to narrow our list down to the best ones. The companies in this article scored the best in our review categories, which include energy-efficient offerings, availability, local expertise, customer service, price and more.

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 provides windows expertise in Glendale. Window World has been in the window installation business for about 27 years. Its reputation is backed by many positive reviews from customers online.
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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Window World cost in Glendale?Prices are not available on Window World’s website since the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to receive a free quote from the company.

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 provides the best availability in Glendale. Andersen has been in the window installation business for about 27 years. Its reputation is backed by many positive reviews from customers online.
Andersen may be the company for you if you want 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 WindowsA 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. Not all of Andersen’s windows are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Glendale?Prices are not available on Andersen’s website since the cost of window installment varies greatly based 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. The best way to get more accurate pricing information is to receive a free quote from the company.

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 provides the best warranty in Glendale. It's 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 window installation business. Many 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 WindowsUniversal Windows Direct’s commitment to sustainability can be seen in its energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Glendale?While prices are not available on Universal’s website, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Receiving a free quote on its website is the best way to get more accurate information.
One thing to note is that the companies in this section are national, meaning the quality of the service may depend on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for each company.
More Window Companies in Glendale
Renewal by Andersen Window Replacement
Denver, CO-
Free assessment
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Good 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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Commercial Windows
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Window Replacement
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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
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Full-Service Installations
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Energy-Efficient Options
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Sliding Glass
Window World of Denver
Denver, CO-
Free assessment
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Timely Service
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Stained Glass
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Double-Hung
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Aluminum Window Frames
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Sliding Glass
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Commercial Windows
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Residential Windows
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Fast Delivery
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Glass Showers
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Bay Windows
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
Champion Replacement Windows of Denver
Denver, CO-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Sliding Glass
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Residential Windows
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Double-Hung
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Custom Window Designs
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Bay Windows
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Window Replacement
Champion Replacement Windows of Ft. Collins
Loveland, CO-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Window Replacement
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Sliding Glass
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Double-Hung
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Bay Windows
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Residential Windows
Champion Replacement Windows of Colorado Springs
Colorado Springs, CO-
Price Transparency
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Good Customer Service
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Free assessment
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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Bay Windows
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Sliding Glass
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Residential Windows
Window Nation
Aurora, CO-
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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Window Replacement
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Energy-Efficient Options
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Double-Hung
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Sliding Glass
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Bay Windows
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Stained Glass
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Residential Windows
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Custom Window Designs
Five Seasons Windows and Doors
Denver, CO-
Timely Service
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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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Stained Glass
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Double-Hung
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Commercial Windows
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Residential Windows
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Bay Windows
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Energy-Efficient Options
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Glass Showers
Bellwether Windows, Siding, & Doors
Englewood, CO-
Good Customer Service
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Price Transparency
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Timely Service
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Educational Website
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Free assessment
Services Offered
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Commercial Windows
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Double-Hung
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Aluminum Window Frames
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Window Replacement
JDI Windows
Littleton, CO-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Commercial Windows
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Window Replacement
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Fast Delivery
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Window Repair
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Bay Windows
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Double-Hung
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Custom Window Designs
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Residential Windows
True View Windows & Glass
Westminster, CO-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
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Timely Service
Services Offered
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Commercial Windows
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Double-Hung
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Aluminum Window Frames
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Window Replacement
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Window Repair
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Glass Showers
Window Replacement Denver
Denver, CO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Double-Hung
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Custom Window Designs
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Aluminum Window Frames
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Window Replacement
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Fast Delivery
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Commercial Windows
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Sliding Glass
Lifetime Windows & Siding
Denver, CO-
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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Window Replacement
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Custom Window Designs
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Fast Delivery
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Energy-Efficient Options
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Sliding Glass
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Residential Windows
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Glass Showers
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Commercial Windows
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Double-Hung
Gravina's Window Center of Littleton
Littleton, CO-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Bay Windows
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Fast Delivery
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Custom Window Designs
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Sliding Glass
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Window Replacement
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Stained Glass
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Double-Hung
Lakewood Glass and Windows
Lakewood, CO-
Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Fast Delivery
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Window Replacement
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Double-Hung
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Custom Window Designs
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Commercial Windows
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Tempered Glass
Reflection Windows & Doors
Denver, CO-
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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Double-Hung
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Full-Service Installations
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Window Repair
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Window Replacement
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Glass Showers
Dreamstyle Remodeling
Denver, CO-
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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Bay Windows
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Residential Windows
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Double-Hung
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Custom Window Designs
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Full-Service Installations
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Fast Delivery
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Glass Showers
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Window Replacement
5280 Exteriors
Centennial, CO-
Timely Service
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Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Commercial Windows
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Window Replacement
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Aluminum Window Frames
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Custom Window Designs
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Residential Windows
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Glass Showers
Colorado Window Source
Denver, CO-
Price Transparency
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Free assessment
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Good Customer Service
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Timely Service
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Educational Website
Services Offered
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Sliding Glass
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Commercial Windows
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Energy-Efficient Options
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Double-Hung
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Glass Showers
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Window Replacement
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Custom Window Designs
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Residential Windows
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Fast Delivery
Paramount Siding & Windows
Littleton, CO-
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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Custom Window Designs
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Sliding Glass
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Window Replacement
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Double-Hung
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Residential Windows
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Bay Windows
CMC Windows and Doors
Centennial, CO-
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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Residential Windows
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Full-Service Installations
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Stained Glass
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Double-Hung
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Custom Window Designs
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Window Replacement
Calculate how much you can expect to pay for window installation and replacement in Glendale, CO 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 Glendale Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are a few reasons you may want to make the switch:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Save on power bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% since you use less energy.
- Decrease your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 460 pounds.
- More efficient energy usage in your home: In Glendale where the summers can get quite hot, energy-efficient windows lower the amount of cool air that is lost through your windows, which makes it easier to keep your home cool.
Estimated Cost of Window Replacement in Glendale
Each window installer provides varying services and has varying price points based on several factors.
How Much Do New Windows Cost?
Typically, homeowners in Glendale can expect that most window installations will range from $250 to $1,200, with the most common installations sitting at about $600. But prices differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door replacements, which will add extra costs to your project.
It's also worth noting that energy-efficient windows will usually cost more initially, but Energy Star estimates that upgrading the windows on your Glendale home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you'll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are generally the most expensive, but it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
In general, there are two types of window installation services companies provide: full-frame and pocket installations.
Full-frame installations involve replacing the whole window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has a great amount of damage. Full-frame installations require more time and labor and will increase overall costs. Pocket installations are on the simpler end and won't carry as large a bill, as they entail simply 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 hiring a reputable window installation company, your company can advise you on the best type for your project. In Glendale, the choice will mostly be based on how much damage there is currently and the condition of your existing frames.
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 Glendale
In our hunt to find the most reliable, eco-friendly window installers in Glendale, EcoWatch evaluated dozens of companies before settling on these. Along with energy efficiency, we evaluated each installer and ranked them using the following methodology:
Service Area
Because this is a guide for Glendale, we paid more attention to companies that serve the city. There are other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Glendale.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each company in our guide to ensure its contractors are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it reflects the quality of services across most other categories, including warranty, cost, quality of installation, professionalism, quality of parts and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and labor 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 will earn higher rankings by our standards. We like to see at least ten years of experience.
Glendale, CO Window Replacement FAQs
What is the average cost to install new windows in a home?
The national average cost of installing a single window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is usually influenced by the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the most common kinds of replacement windows?
There are several different kinds of windows you can get for your home, such as casement windows, double-hung and single-hung windows, awning windows, slider windows, picture windows, bay windows and transom windows.
What services do window replacement companies offer?
Window installers travel to your property to remove your old windows and replace them with new ones. Some companies install products made by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.
How long does window installation generally take?
Each window takes about 30 minutes to install depending on the type of window. However, the window installation can take two days or more if you need to have a lot of windows installed.