29 Best Window Replacement Companies in Glendale, CO (Feb 2023)
Window Companies Near Me
When the time comes to replace your windows, our list of the best window installation companies can help you find the provider for you.
We analyzed all the top window installers in Glendale 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
Although green energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your house's energy efficiency can also have a considerable impact on home energy conservation. If your house has traditional, outdated windows, your HVAC system could be working extra hard to heat or cool your house. This means spending more on electric bills.
That's bad for your wallet and the environment, but one of the best window installation companies can help you with that.
So if you're building a new home, renovating or changing out old windows in Glendale, this is the best place to get started.
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Award-winning company
- Manufactures products in-house
- No lifetime warranty
Best Affordability
Window World
- Low prices relative to competitors
- Lifetime warranty
- EnergyStar Partner
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Lifetime warranty
- Makes charitable contributions
- Limited service area
Best Window Replacement Companies in Glendale
The EcoWatch team evaluated dozens of installers across the country to find the top window replacement companies for our readers. We assessed the installers on their energy-efficient offerings, local experience, coverage area, customer service, price and more.

Renewal by Andersen
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Member of US Green Building Council
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Award-winning company
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Manufactures products in-house
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No lifetime warranty
Renewal by Andersen provides the best availability in Glendale. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years. Many positive reviews on customer review websites back the company's reputation.
It has established itself as a company 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 offerings are Energy Star certified, so make sure you mention that you want 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 replacement differs 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. You can request a free quote on its website for more information about the cost.

Window World
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Low prices relative to competitors
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Lifetime warranty
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EnergyStar Partner
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Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the window installation industry, and it has proved to be one of the most reputable companies in the business. Many positive reviews on customer review websites back the company's reputation.
If you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the company for you.
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 offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window World cost in Glendale?Window World doesn't have any cost information available on its website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to ask for a free quote from the company.

Universal Windows Direct
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Wide variety of products and services
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Lifetime warranty
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Makes charitable contributions
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Limited service 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 industry, and it currently provides services to 27 states nationwide. Many positive reviews on customer review websites back the provider's reputation.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the right company for you.
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 make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Glendale?Universal does not mention 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. The best way to get more accurate pricing information is to receive a free quote from the company.
We strive to be unbiased and transparent by listing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Replacement Companies in Glendale
Storm Guard of South Metro Denver
Parker, CO-
No-fee Quotes
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Good Customer Service
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No-Hassle Pricing
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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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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Business Windows
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Double-Hung
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Stained Glass
The Glass Guru
Arvada, CO-
Locally Recognized for Quality
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No-Hassle Pricing
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Helps Educate Customers
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Reliable Appointment Windows
Services Offered
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Residential Windows
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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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Commercial Windows
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Double-Hung
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Sliding Glass
Storm Guard North Metro Denver
Brighton, CO-
No-Hassle Pricing
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Consistent Workmanship
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Award-Winning
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Reliable Appointment Windows
Services Offered
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Residential Windows
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Architectural Glass
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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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Business Windows
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Double-Hung
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Stained Glass
Window World of Denver
Denver, CO-
Locally Recognized for Quality
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Reliable Service
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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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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Business Windows
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Double-Hung
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Sliding Glass
Commercial Storefront Glass Denver
1555 Larimer St, CO-
Educational Website
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No-Hassle Pricing
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Reliable Service
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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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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Double-Hung
Northern Lights Exteriors
Fort Lupton, CO-
Consistent Workmanship
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Reliable Appointment Windows
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Award-Winning
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Free Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Full-Service Installations
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Business Windows
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Sliding Glass
True View Windows & Glass
Westminster, CO-
Arrives on Time
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Educational Website
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Free Quotes
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Reliable Service
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
CMC Proudly Offering Marvin Windows and Doors
Centennial, CO-
Excellent Customer Service
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Helps Educate Customers
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Dependable Service
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Free Quotes
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Sliding Glass
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Aluminum Window Frames
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Energy-Efficient Options
Binswanger Glass
Castle Rock, CO-
No-Hassle Pricing
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Timely Service
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Consistent Workmanship
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Educational Website
Services Offered
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Residential Windows
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Glass Showers
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Doors
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Custom Window Designs
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
Hillcrest Glass
Longmont, CO-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Consistent Workmanship
Services Offered
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Residential Windows
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Glass Showers
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Heavy Glass
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
Five Seasons Windows and Doors
Denver, CO-
Arrives on Time
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Excellent Customer Service
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Dependable 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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Double-Hung
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Sliding Glass
Alpen High Performance Products
Louisville, CO-
Educational Website
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Price Transparency
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Reliable Service
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Free Quotes
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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Custom Window Designs
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Business Windows
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Double-Hung
Colorado Rockies Windows and Doors
Golden, CO-
No-fee Quotes
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Excellent Customer Service
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Consistent Workmanship
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No-Hassle Pricing
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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Commercial Windows
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Double-Hung
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Sliding Glass
Ameritech Windows
Boulder, CO-
No-fee Quotes
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Price Transparency
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Excellent Customer Service
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Locally Recognized for Quality
Services Offered
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Custom Windows
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Residential Windows
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Energy-Efficient Options
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Double-Hung
GS Exterior Experts
Littleton, CO-
Good Customer Service
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Price Transparency
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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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Residential Windows
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Commercial Windows
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Double-Hung
United Windows Pro - Windows and glass repair
Aurora, CO-
Reliable Service
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Price Transparency
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Reliable Appointment Windows
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Helps Educate Customers
Services Offered
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Tempered Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Ken Caryl Glass, Inc.
Mead Way, CO-
Educational Website
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Arrives on Time
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Good Customer Service
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No-fee Quotes
Services Offered
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Residential Windows
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Doors
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Custom Window Designs
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Commercial Windows
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Sliding Glass
303 WINDOWS
Denver, CO-
Free Quotes
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Dependable Service
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Good Customer Service
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Arrives on Time
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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Double-Hung
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Sliding Glass
Sky Manor Roofing & Exteriors
Thornton, CO-
Reliable Appointment Windows
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Good Customer Service
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No-Hassle Pricing
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Dependable Service
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
Reliable Glazing
Denver, CO-
Consistent Workmanship
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Reliable Appointment Windows
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Tempered Glass
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Custom Windows
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Commercial Windows
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Double-Hung
Mountain View Window & Door
Denver, CO-
No-Hassle Pricing
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Educational Website
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Free Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Commercial Windows
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Double-Hung
Colorado Classic Exteriors: Windows, Siding, Doors, Pergolas
Arvada, CO-
No-fee Quotes
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Price Transparency
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Excellent Customer Service
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Reliable Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Sliding Glass
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Energy-Efficient Options
Lifetime Windows & Siding
Denver, CO-
No-Hassle Pricing
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Free Quotes
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Reliable Service
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Good Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
Slade Glass Co.
Longmont, CO-
Free Quotes
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Price Transparency
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Gives to charity
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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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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Absolute Glass & Windows LLC
Aurora, CO-
Price Transparency
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Educational Website
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Reliable Service
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Free Quotes
Services Offered
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Residential Windows
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Architectural 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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Sliding Glass
Slade Glass Co.
Boulder, CO-
Educational Website
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Good Customer Service
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Free Quotes
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Charitable Giving
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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Sliding Glass
Alpha Glass and Window, LLC
Englewood, CO-
Award-Winning
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No-Hassle Pricing
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Residential Windows
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Glass Showers
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Window Replacement Denver
Denver, CO-
Free Quotes
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Locally Recognized for Quality
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Dependable Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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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
Renewal by Andersen of Colorado Front Range
Longmont, CO-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Reliable Service
Services Offered
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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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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
How Installing Energy-Efficient Windows in Glendale Saves You Money
Switching to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here's more information on how upgrading your windows could benefit you:
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes usually have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help increase the value of your home if you decide to sell.
- Reduce your carbon footprint: Reducing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 460 pounds.
- Save on electricity bills: The Department of Energy estimates that heat gained or lost via windows accounts for about 25-30% of energy use in your home. Switching to energy-efficient windows can help lower that number, which helps you save more on your bills.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Glendale
Windows come in different shapes and sizes, so costs and services will differ considerably. Here are the average costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
According to our research, the average cost of installing a single window is around $600. However, window replacement costs can range from $200 to $1,200 for each window. These estimates vary depending on specific characteristics of your installation, including the location of your home, number of windows, material, type, size and more.
Whether or not you want to install energy-efficient windows is another factor that will determine the cost. These will almost always cost more than other windows, but on the other hand, you can save about $378 a year on your energy bills in Glendale.
Costs will also vary based on the material of your frame. Aluminum frames cost the least. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
The first step of a window replacement is to figure out whether you need a full-frame or pocket installation.
A full-frame installation is a replacement of the full window. It involves removing the old window, the windowsill, and the exterior and interior trim. It also involves other materials, like insulation and drip edges, which raise the total 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 (or retrofits) entail replacing a window within the existing frame, which makes pocket installations more simple and affordable. However, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.
If you're still debating which kind of installation to get, you can talk to your installer and get their advice. The decision mostly is influenced by how old the frames are and if there's any damage.
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Award-winning company
- Manufactures products in-house
- No lifetime warranty
Best Affordability
Window World
- Low prices relative to competitors
- Lifetime warranty
- EnergyStar Partner
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Lifetime warranty
- Makes charitable contributions
- Limited service area
How We Choose the Best Window Installers in Glendale
EcoWatch reviews are different from most reviews because we examine these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in Glendale and assigned rankings using the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the best window installation company near you.
Work Quality
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer in our guide to ensure its contractors 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 find the companies with the most customer satisfaction. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, warranty, quality of installation, quality of parts, cost and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed, windows are a serious investment, so you'll want to make sure that investment is protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Glendale's climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Glendale window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Glendale, CO Window Replacement FAQs
How much should window installation cost?
The typical cost of replacing one window can range between $450 and $650. There are a variety of factors that affect the cost, including your property's location, how energy-efficient the windows are, the materials used in designing the windows, the number of windows, styles and sizes of windows and local labor costs.
Which type of window is the best?
Generally, double-pane windows are more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. If you want to be sure you're getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.
Can you replace your own windows?
If you're handy and know how to replace a window, you may be able to install your own windows. However, if you don't have the time or skills, we don't recommend trying it.
What time of year should I replace my windows?
While you can install windows any time of year, warmer weather is often better for replacing windows. In addition, it shouldn't be raining, since rain can make the installation more difficult.
How often do you need to replace your 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. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may be in need of replacement.