21 Best Window Replacement Companies in Louisville, CO (Jan 2023)
Window Companies Near Me
If you're looking to get new windows, our guide to the top window installation companies can help.
We analyzed all the top window installers in Louisville and selected the top 21 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
Whether you're updating for aesthetics or have windows that need repairs, windows play a important role in conserving your home's energy. Drafty windows can reduce your home's energy efficiency by up to 30%, according to the Department of Energy. In Louisville, that's almost $375 per year that you could save on your electricity bills after making the switch.
That's also bad for the environment because the extra energy required by leaky windows increases your carbon footprint.
As windows have such a great impact on your home, picking the best company for you is a big choice to make. That's why the EcoWatch team has put together this list of the top window installation companies, so you can more easily make an informed decision.
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Manufactures products in-house
- Great industry reputation
- More expensive than competition
Best Affordability
Window World
- Low prices relative to competitors
- Great industry reputation
- Large serice area
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Makes charitable contributions
- Wide variety of products and services
- Limited service area
Best Window Replacement Companies in Louisville
The EcoWatch Reviews team assessed dozens of installers in Louisville to find the best ones for our readers. The installers we've reviewed in this article scored best in our categories, including energy-efficient offerings, availability, price, customer service and more.

Renewal by Andersen
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Member of US Green Building Council
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Manufactures products in-house
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Great industry reputation
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More expensive than competition
Renewal by Andersen offers the best availability in Louisville. This provider has 27 years of experience in the windows industry, and it has become one of the most respected companies in the business. The provider has many positive reviews from customers on online review websites.
If you're looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the provider for you.
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 be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Louisville?Prices are not available on Andersen's website, as the cost of window replacement depends 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 ask for a free quote from the company.

Window World
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Low prices relative to competitors
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Great industry reputation
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Large serice area
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Quality of service will depend on your area
Window World offers windows expertise in Louisville. This window installation company has been in business since 1995 and currently provides services to 200 locations nationwide. Hundreds of positive reviews on customer review websites back the provider's reputation.
It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsThere are a wide range of window types that Window World offers, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Louisville?Pricing details are not available on Window World's website because 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. Requesting a free quote on its website is the best way to get more accurate pricing information.

Universal Windows Direct
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Lifetime warranty
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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 Louisville. Universal has been in the window industry for around 20 years. Its reputation is backed by a considerable amount of positive reviews from customers online.
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 offers a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in Louisville?Prices aren't available on Universal's website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. If you'd like more accurate pricing information, you can inquire about a quote on the company's website.
We've recommended companies with good reputations, but keep in mind some national companies have independently owned locations in Louisville, so the quality of service may vary depending on your local crew. We have tried to remain unbiased and transparent by describing pros and cons for every company we reviewed.
More Window Replacement Companies in Louisville
The Glass Guru
Arvada, CO-
Award-Winning
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Free Quotes
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Good Customer Service
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Educational Website
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 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
Storm Guard North Metro Denver
Brighton, CO-
Timely Service
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Price Transparency
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Consistent Workmanship
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Locally Recognized for Quality
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 Windows
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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-
Excellent Customer Service
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Price Transparency
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Reliable Service
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Timely 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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Commercial 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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Free Quotes
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Excellent Customer Service
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Locally Recognized for Quality
Services Offered
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Fast Delivery
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Double-Hung
Northern Lights Exteriors
Fort Lupton, CO-
Good Customer Service
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Award-Winning
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Free Quotes
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Educational Website
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-
Free Quotes
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Timely Service
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Excellent Customer Service
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No-Hassle Pricing
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 Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
CMC Proudly Offering Marvin Windows and Doors
Centennial, CO-
Consistent Workmanship
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Helps Educate Customers
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No-fee Quotes
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Good Customer 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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Aluminum Window Frames
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Energy-Efficient Options
Hillcrest Glass
Longmont, CO-
Educational Website
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No-Hassle Pricing
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Reliable 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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Heavy Glass
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Custom Windows
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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
Five Seasons Windows and Doors
Denver, CO-
Educational Website
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Consistent Workmanship
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Good Customer Service
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Free Quotes
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-
Consistent Workmanship
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No-Hassle Pricing
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Award-Winning
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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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-
Free Quotes
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Good Customer Service
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Reliable Appointment Windows
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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 Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Ameritech Windows
Boulder, CO-
Timely Service
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Good Customer Service
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Price Transparency
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Double-Hung
GS Exterior Experts
Littleton, CO-
Locally Recognized for Quality
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Excellent Customer Service
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Reliable Service
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No-fee Quotes
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-
Arrives on Time
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Good Customer Service
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Free Quotes
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Price Transparency
Services Offered
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Tempered Glass
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Ken Caryl Glass, Inc.
Mead Way, CO-
No-fee Quotes
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Reliable Service
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Timely Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Doors
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Custom Windows
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Business Windows
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Sliding Glass
303 WINDOWS
Denver, CO-
Good Customer Service
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Dependable Service
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Timely Service
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Price Transparency
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-
Dependable Service
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No-Hassle Pricing
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Arrives on Time
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Excellent 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
Reliable Glazing
Denver, CO-
Timely Service
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No-Hassle Pricing
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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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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-
Dependable Service
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No-fee Quotes
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Locally Recognized for Quality
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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-
Dependable Service
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Free Quotes
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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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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Dependable Service
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Educational Website
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Good Customer Service
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Louisville Saves You Money
By upgrading to energy-efficient windows, you and your family can benefit in several ways, such as:
- Reduce your carbon footprint: In Louisville, you can lower your indirect greenhouse gas emissions by about 460 pounds per year once you switch to energy-efficient windows.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
- Save on power bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, they can help you save around $375 annually on your energy bills in Louisville.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
Estimated Cost of Window Replacement in Louisville
Windows come in varying purposes, shapes and styles, so costs and services will differ remarkably based on several factors. Below, we go over the average cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
Although the national average to replace a single window is about $600, it can range from $200 to $1,200. These estimates vary based on specific characteristics of your installation, such as material, the location of your home, type, size, number of windows and more.
It's important to note that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save Louisville homeowners $375+ a year when replacing single-pane windows.
Costs will also vary depending on the material you want for your window frames. Aluminum frames have the lowest price. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
In general, there are two kinds of window replacement services you can get: full-frame and pocket installations.
A full-frame installation is a replacement of the full window. This service involves removing the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, like insulation and drip edges, which increase the overall cost of the project. It's also worth noting that you may have to touch up the paint around the window after a full-frame installation. A pocket installation means replacing a window within the existing frame, which is usually cheaper than a full-frame installation.
If you're hiring a reputable window installation company, your company will be able to advise you on the best type for your project. In Louisville, the decision will mostly be influenced by how much damage there is currently and the condition of your existing frames.
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Manufactures products in-house
- Great industry reputation
- More expensive than competition
Best Affordability
Window World
- Low prices relative to competitors
- Great industry reputation
- Large serice area
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Makes charitable contributions
- Wide variety of products and services
- Limited service area
How We Choose the Best Window Installers in Louisville
In our hunt to find the most reliable, eco-friendly window installers in Louisville, EcoWatch landed on the above companies as the top window installation companies in the city. We have assessed the best window installation companies in Louisville mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for Louisville, we only included companies that cover the city. There are certainly other reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Louisville.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each installer in our guide to ensure its contractors are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If most customers don't have good things to say about their experience with a certain window installation company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window companies won't always provide the highest quality service. Still, we want to ensure we're highlighting companies that offer a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. That's why window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Louisville's climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of Louisville window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Louisville, CO Window Replacement FAQs
What is the average cost to install windows?
The national average cost of installing a window is around $600 but can range from $200 to $1,200, depending on a variety of factors. The price is generally dependent on the type and material of the window, the size of the window and the location of your property. Also, bear in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the different types of windows?
There are various kinds of windows you can get for your house, including picture windows, casement windows, slider windows, bay windows, awning windows, transom windows and double-hung and single-hung windows.
What do window installation companies do?
Window installation professionals go to your home 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 usually take?
Each window takes around 30 minutes to install based on the kind of window. However, the window installation can take two days or more if you need to have a lot of windows installed.
How often do you need to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.