20 Best Window Companies in Lafayette, CO (2025 Reviews)
Looking to improve your property’s value? The top window replacement companies can help.
We analyzed all the top-rated window companies in Lafayette and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A review of the best window installation companies in Lafayette may not seem like the most interesting article on the EcoWatch site, but trust us, windows impact your life more than you might think. According to the Department of Energy, heat or cool air lost through outdated, drafty windows could make up 25-30% of heating and cooling costs.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
Efficient windows are of particular importance in Lafayette, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $457 a year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Lafayette
The EcoWatch team assessed several window installation companies in Lafayette to find the top ones for our readers. We assessed the companies based on their energy-efficient offerings, price, local experience, customer service, coverage area and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in Lafayette. This window installation company has been operating since 1995 and currently serves 200 locations nationwide.
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 WindowsWindow World is an Energy Star partner with 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 Window World representative when inquiring about services.
How much does Window World cost in Lafayette?Prices are not available on Window World’s website since the cost of window installment depends 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. For more accurate information on the cost, you can request a quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen provides the best availability in Lafayette. This window installation company has been operating since 1995 and currently serves nearly every state except Mississippi and West Virginia.
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 WindowsRenewal by Andersen is an Energy Star partner with 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 Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Lafayette?Prices are not available on Andersen’s website since the cost of window installment 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. For more accurate information on the cost, you can request a quote from the company.
Please note that the following companies are national, meaning the quality of the service may depend on your local crew. We have tried to remain unbiased and transparent by describing both pros and cons for every company.
More Window Companies in Lafayette
Renewal by Andersen Window Replacement
Longmont, COGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Metal Frames
Energy-Efficient Options
Double-Hung
Glass Doors
Custom Window Designs
Bay Windows
Vinyl Frames
Champion Replacement Windows of Ft. Collins
Loveland, COPrice Transparency
Free assessment
ENERGY STAR® certified
Good Customer Service
Products made in the USA
Price you're quoted is the price you pay
Services Offered
Double-Hung
Window Replacement/Installation
Glass Doors
Bay Windows
Champion Replacement Windows of Denver
Denver, COPrice Transparency
Free assessment
Good Customer Service
Services Offered
Double-Hung
Window Replacement/Installation
Bay Windows
Glass Doors
Power Home Remodeling
Centennial, COTimely Service
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
DaBella
Denver, COWide range of styles
Timely Service
Triple-pane vinyl windows
Good Customer Service
Customized to your home
Services Offered
Window Replacement/Installation
Vinyl Frames
Double-Hung
Glass Doors
Window Nation
Aurora, COGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Bay Windows
Custom Window Designs
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Double-Hung
DMD Window & Door
Wheat Ridge, COFree assessment
Price Transparency
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Custom Window Designs
Energy-Efficient Options
Wood Frames
Vinyl Frames
Glass Doors
Custom Exteriors
Berthoud, COFree assessment
Good Customer Service
Price Transparency
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Vinyl Frames
Bay Windows
Bright Idea Egress — Window Kits
Sheridan, COFree assessment
Timely Service
Price Transparency
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Wood Frames
Metal Frames
Loveland Window Cleaning Services
Loveland, COFree assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Storm Exteriors
Centennial, COGood Customer Service
Price Transparency
Free assessment
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
United Windows Pro - Windows and glass repair
Aurora, COTimely Service
Price Transparency
Financing options available
Educational Website
Good Customer Service
Fast emergency response
Free assessment
Commercial and residential
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Triple Pane Glass
Wood Frames
Tempered Glass
Glass Repair
Window Repair
Glass Doors
Colorado Windows and Restoration
Highlands Ranch, COPrice Transparency
Good Customer Service
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Powerhouse Roofing and Exteriors
Greeley, COEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
AllGuard Windows and Doors Fort Collins
Fort Collins, COPrice Transparency
Good Customer Service
Free assessment
Services Offered
Wood Frames
Metal Frames
Double-Hung
Vinyl Frames
Glass Doors
Window Replacement/Installation
Fiberglass Frames
Energy-Efficient Options
All-Star Construction Windows & Doors
Parker, COGood Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Mirrors
Vinyl Frames
Glass Repair
Glass Showers
BlueBird Windows & Doors
Lafayette, COGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Double-Hung
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Slade Glass Co.
Boulder, COFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Mirrors
Glass Showers
Window Replacement/Installation
Glass Repair
WestPro | Roofing, Siding, Windows
Longmont, COEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Storm/Impact Windows
Skylights
Glass Doors
Colorado Glass and Mirror LLC
Denver, COFree assessment
Services Offered
Mirrors
Window Replacement/Installation
Glass Showers
Custom Glass
Window Repair
Calculate how much you can expect to pay for window installation and replacement in Lafayette, CO using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Lafayette Saves You Money
Energy-efficient windows can benefit you in several ways. Here are a few reasons you may want to consider making the switch:
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, especially if you have an older home.
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% when you install Energy Star certified windows. In Lafayette, that’s about 460 pounds per year on average.
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of household energy use. Upgrading to energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
Estimated Cost of Window Replacement in Lafayette
When looking into window installation, each company offers different services and costs. Let’s go over some average costs and services.
How Much Do New Windows Cost?
Although the average cost to install one window is around $600, it can range anywhere from $200 to $1,200. How much it will cost depends on several factors, like the location of your home, material, type, number of windows, size and more.
It’s also worth keeping in mind that energy-efficient windows will usually cost more initially, but Energy Star estimates that upgrading the windows on your Lafayette home translates to an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you’ll save by upgrading to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
Something else that affects the overall cost is the material of the frame you pick. Aluminum frames are generally the least pricey and are sturdy and light, but they offer poor insulation. On the other hand, wood frames are the most expensive, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.
What Services do Window Installers Offer?
In general, there are two kinds of window installation services companies offer: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the sill, frame, trim and the window panes. Because this type of installation requires more time, it will cost more than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are simpler and won’t cost as much, but you can’t do this type of installment if you have any pre-existing rot or water damage.
If you’re still trying to decide which kind of installation you should get, you can talk to your provider and get their recommendation. The choice mostly depends on how old the frames are and if there’s any damage.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Lafayette
In our hunt to make your home improvements easier and more eco-friendly in Lafayette, the EcoWatch Reviews team landed on the above companies as the best window installation companies in the city. Along with energy efficiency, we assessed window companies all across the state and ranked them based on the following methodology:
Service Area
Since this is a guide for Lafayette, we only included companies that cover the city. There are certainly other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Lafayette.
Work Quality
We’re willing to bet that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each company featured in our guide to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent online reviews to find the companies with the most consistent customer satisfaction. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including cost, quality of installation, warranty, quality of parts, professionalism and more.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies won’t always provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a significant investment, so you’ll want to be certain that investment is protected. Window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Lafayette’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Lafayette window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Lafayette, CO Window Replacement FAQs
How much should a window install cost?
The average cost to replace one window ranges between $450 and $650. There are many factors that affect the price, such as the number of windows, styles and sizes of windows, local labor costs, how energy-efficient the windows are, your property’s location and the materials used in designing the windows.
What are the different types of windows?
There are several different kinds of windows you can get for your home, including casement windows, double-hung and single-hung windows, awning windows, bay windows, transom windows, picture windows and slider windows.
When should I use a window installation company?
You should hire a window installation company whenever you need to upgrade your windows. Installing windows is a involved process that can be difficult and time-consuming, so it’s best handled by the professionals.
What time of year is a good time to replace my windows?
Replacement windows can be installed during any season, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into your house, so the temperature outside doesn’t necessarily matter that much. What’s more important than the temperature is that the weather should be dry.
How long does window installation generally take?
Because the average installation time of a window is 30 minutes, around 16 windows can be installed during an 8-hour work day.