23 Best Window Replacement Companies in Fort Collins, CO (2023 Reviews)
Window Companies Near Me
Looking to upgrade your home's windows? We've got all the information you need in this guide to the top window installation companies.
We analyzed all the top window installers in Fort Collins and selected the top 23 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 May 04, 2023
Why you can trust EcoWatch
A guide on the best window replacement companies in Fort Collins may not seem like the most compelling article on EcoWatch, but trust us, windows have a more direct impact on your life than you might realize. Damaged or outdated windows could lead to having higher power bills during the winter or summer months.
Fortunately, helping you save energy with upgraded windows also aligns with our goals of reducing energy usage for the environment.
Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Manufactures products in-house
- More expensive than competition
Best Affordability
Window World
- Large serice area
- Lifetime warranty
- Low prices relative to competitors
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Manufactures products in-house
- Makes charitable contributions
- Wide variety of products and services
- Limited service area
Best Window Replacement Companies in Fort Collins
The EcoWatch team assessed dozens of installers across the country to find the top window companies for our readers. We assessed the providers on energy-efficient offerings, coverage area, local experience, price, customer service and more.

Renewal by Andersen
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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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More expensive than competition
Renewal by Andersen has the best availability in Fort Collins. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for around 27 years.
It 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for 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 Fort Collins?Andersen doesn't have any prices displayed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on the cost, you can receive a quote from the company.

Window World
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Large serice area
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Lifetime warranty
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Low prices relative to competitors
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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. Window World has been in the window installation business for around 27 years. The provider has a lot of positive reviews from customers online.
You may want to consider opting for Window World if you're interested in a installer 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 WindowsWindow World is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in Fort Collins?Prices aren't displayed on Window World's website, but it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about the cost.

Universal Windows Direct
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Manufactures products in-house
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Makes charitable contributions
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Wide variety of products and services
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Limited service area
Universal Windows Direct offers the best warranty in Fort Collins. Universal has been in the window installation business for around 20 years. The provider has plenty of glowing 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 WindowsUniversal Windows Direct is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in Fort Collins?Prices are not available on Universal's website because the cost of window replacement depends on how many and what type(s) of windows you need. However, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to get more accurate information is to get a free quote from the company.
We aim to be unbiased and transparent by listing pros and cons for every company. Additionally, any partnerships do not influence our reviews.
More Window Replacement Companies in Fort Collins
The Glass Guru
Loveland, CO-
Award-Winning
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Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Glass Showers
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Tempered Glass
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Residential Windows
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Stained Glass
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Commercial Windows
Bellwether Windows, Siding, & Doors
Fort Collins, CO-
Good Customer Service
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Timely Service
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Free assessment
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Educational Website
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Award-Winning
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Price Transparency
Services Offered
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Double-Hung
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Commercial Windows
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Residential Windows
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Glass Showers
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Fast Delivery
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Stained Glass
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Aluminum Window Frames
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Custom Window Designs
Budget Blinds of Fort Collins
Fort Collins, CO-
Price Transparency
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Free assessment
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Timely Service
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Educational Website
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Glass Showers
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Aluminum Window Frames
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Commercial Windows
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Fast Delivery
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Custom Window Designs
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Residential Windows
Slade Glass Co.
Boulder, 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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Glass Showers
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Sliding Glass
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Residential Windows
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Aluminum Window Frames
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Commercial Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
The Glass Guru
Greeley, CO-
Free assessment
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Educational Website
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Award-Winning
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Price Transparency
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Good Customer Service
Services Offered
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Full-Service Installations
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Tempered Glass
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Aluminum Window Frames
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Sliding Glass
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Stained Glass
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Double-Hung
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Custom Window Designs
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Residential Windows
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Glass Showers
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Commercial Windows
Slade Glass Co.
Longmont, CO-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Commercial Windows
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Glass Showers
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Fast Delivery
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Sliding Glass
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Custom Window Designs
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Aluminum Window Frames
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Energy-Efficient Options
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Residential Windows
Ankmar Garage Door
Loveland, CO-
Free assessment
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Good Customer Service
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Educational Website
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Timely Service
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Price Transparency
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Award-Winning
Services Offered
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Fast Delivery
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Double-Hung
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Full-Service Installations
Rocky Mountain Glass & Shower LLC
Ault, CO-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Energy-Efficient Options
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Residential Windows
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Glass Showers
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Commercial Windows
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Double-Hung
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Custom Window Designs
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Tempered Glass
Budget Blinds of Longmont and Surrounding Areas
Berthoud, CO-
Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Commercial Windows
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Aluminum Window Frames
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Energy-Efficient Options
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Residential Windows
Soderburg Roofing & Contracting
Greeley, CO-
Price Transparency
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Free assessment
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Good Customer Service
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Award-Winning
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Educational Website
Services Offered
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Commercial Windows
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Double-Hung
BlueBird Windows & Doors
Lafayette, CO-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
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Award-Winning
Services Offered
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Double-Hung
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Bay Windows
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Sliding Glass
Black's Glass
Fort Collins, CO-
Educational Website
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Commercial Windows
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Custom Window Designs
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Glass Showers
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Sliding Glass
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Double-Hung
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Residential Windows
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Fast Delivery
Moffat Glass
Greeley, CO-
Price Transparency
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Timely Service
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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Full-Service Installations
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Double-Hung
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Residential Windows
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Commercial Windows
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Glass Showers
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Sliding Glass
Lomax Window & Door Co.
Fort Collins, 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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Commercial Windows
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Double-Hung
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Residential Windows
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Energy-Efficient Options
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Aluminum Window Frames
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Sliding Glass
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Custom Window Designs
Hillcrest Glass
Longmont, CO-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Full-Service Installations
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Glass Showers
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Double-Hung
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Sliding Glass
AllGuard Windows and Doors Fort Collins
Fort Collins, CO-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Aluminum Window Frames
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Residential Windows
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Sliding Glass
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Energy-Efficient Options
Anything Glass
Fort Collins, CO-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Sliding Glass
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Residential Windows
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Double-Hung
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Full-Service Installations
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Commercial Windows
Nex-Gen Windows & Doors
Fort Collins, CO-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Residential Windows
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Sliding Glass
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Energy-Efficient Options
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Custom Window Designs
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Fast Delivery
Home Services at The Home Depot
Fort Collins, 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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Custom Window Designs
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Commercial Windows
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Bay Windows
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Residential Windows
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Stained Glass
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Fast Delivery
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Glass Showers
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Sliding Glass
All American Glass and Screen Company
Loveland, CO-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Double-Hung
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Fast Delivery
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Residential Windows
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Commercial Windows
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Sliding Glass
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Glass Showers
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Custom Window Designs
T Bare Roofing
Greeley, CO-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Fast Delivery
Flatirons Tint and Clear Bra
Boulder, 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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Fast Delivery
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Custom Window Designs
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Residential Windows
Glass Doctor of Fort Collins
Fort Collins, CO-
Educational Website
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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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Glass Showers
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Energy-Efficient Options
How Installing Energy-Efficient Windows in Fort Collins Saves You Money
By switching to energy-efficient windows, you and your family can take advantage of several benefits, such as:
- Save money on electricity bills: Since energy-efficient windows lower the amount of energy used to heat or cool your home, the switch can help you save around $522 annually on your energy bills in Fort Collins.
- Reduce your carbon footprint: Reducing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 460 pounds per year on average.
- Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its value.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Fort Collins
Each window replacement company offers various services and has varying costs depending on several factors.
How Much Do New Windows Cost?
Generally, Fort Collins homeowners can expect their window replacements to range from $250 to $1,200. The most common installations sit at approximately $600. Costs will differ considerably depending on the number of windows you need, your location, the current condition of your home and the quality of your products. A lot of window companies also offer replacement door installations and other add-ons like coating, shutters, baths and more. These extra services will increase your overall project costs.
It's also worth keeping in mind that energy-efficient windows will cost more upfront, but Energy Star estimates that upgrading the windows on your Fort Collins home translates to an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you'll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
Requesting free quotes from several providers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
The first thing to ask yourself when getting new windows is: Do you want a full-frame installation or a pocket installation?
Full-frame installations are necessary when you want a new style or your window has a lot of deterioration. With this service, your installers will replace the entire window, including the trim, frame and sill. Pocket installations are simpler and won't carry as large a bill because they involve simply replacing the window within its existing frame. But if the frame has any damage, you may need a full-frame installation instead.
If you're unsure which window installation service you should get, your installer can advise you. Generally, the choice depends on factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Manufactures products in-house
- More expensive than competition
Best Affordability
Window World
- Large serice area
- Lifetime warranty
- Low prices relative to competitors
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Manufactures products in-house
- Makes charitable contributions
- Wide variety of products and services
- Limited service area
How We Choose the Best Window Installers in Fort Collins
EcoWatch differs from other reviewers because we assess these companies through a sustainability lens. We have reviewed the top window replacement companies in Fort Collins mostly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
Since this is a guide for Fort Collins, we paid more attention to companies that provide services to the city. There are certainly reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Fort Collins.
Work Quality
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each company included in our guide to make sure its contractors are well-qualified and that the company has received lots 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 most important factor, as it indicates the quality of services across nearly every category, including professionalism, quality of installation, cost, quality of parts, warranty and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers try 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, windows are a considerable investment, so you'll want to be certain that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Fort Collins' climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of Fort Collins window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Fort Collins, CO Window Replacement FAQs
What is the typical cost to install new windows in a home?
The typical cost to replace a single window can range between $450 and $650. There are a variety of factors that influence the price, including your property's location, local labor costs, styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are and the number of windows.
What are the different kinds of windows?
There are various types of windows you can get for your home, including picture windows, casement windows, double-hung and single-hung windows, bay windows, transom windows, slider windows and awning windows.
What services do window installation companies provide?
Window installation companies cover the entire process — from replacing your old windows with brand new ones to cleaning up after the windows have been put in place. Additionally, a lot of companies offer window manufacturing, customization and repairs.
How long does it take to install windows?
Since a window takes about 30 minutes to install, about 16 windows can be installed in an 8-hour work day.
How often do you need to replace your windows?
Windows generally last around 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have an expert take a look at them to determine if they are in need of a repair or replacement.