20 Best Window Companies in Firestone, CO (2025 Reviews)
If you’re thinking about getting new windows, our guide to the top window installation companies can help.
We analyzed all the top-rated window companies in Firestone 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
The EcoWatch team is all about finding solutions for eco-conscious homeowners in Firestone. Potential leaks or drafts can lower your home’s energy efficiency by up to 30%, according to the Department of Energy. In Firestone, that’s an average of $457 a year that you could save on your power bills by making the switch.
That’s also bad for the environment, as the extra energy used by drafty windows increases your carbon footprint.
Unlike other sites, EcoWatch ranks window replacement companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
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 Firestone
The EcoWatch team researched several window providers across Firestone to narrow our list down to the best ones. The installers we’ve included in this article scored best in our categories, including energy-efficient offerings, availability, price, customer service 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 Firestone. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the windows industry, and it has established itself as one of the most respected companies in the business.
Window World may be the company for you if you want one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World 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 ask your Window World representative when inquiring about services.
How much does Window World cost in Firestone?Prices are not available on Window World’s website since the cost of window replacement 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. You can inquire about a free quote on its website for more information about the cost.

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 Firestone. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows industry, and it has established itself as one of the most respected companies in the business.
Andersen may be the company for you if you want one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen 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 ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Firestone?Prices are not available on Andersen’s website since 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. You can inquire about a free quote on its website for more information about the cost.
We aim 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 Companies in Firestone
Renewal by Andersen Window Replacement
Longmont, COFree assessment
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Custom Window Designs
Energy-Efficient Options
Double-Hung
Window Replacement/Installation
Glass Doors
Bay Windows
Metal Frames
Champion Replacement Windows of Ft. Collins
Loveland, COENERGY STAR® certified
Price you're quoted is the price you pay
Price Transparency
Good Customer Service
Free assessment
Products made in the USA
Services Offered
Window Replacement/Installation
Double-Hung
Bay Windows
Glass Doors
Champion Replacement Windows of Denver
Denver, COGood Customer Service
Price Transparency
Free assessment
Services Offered
Bay Windows
Window Replacement/Installation
Glass Doors
Double-Hung
Power Home Remodeling
Centennial, COGood Customer Service
Timely Service
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
DaBella
Denver, COWide range of styles
Good Customer Service
Customized to your home
Timely Service
Triple-pane vinyl windows
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Vinyl Frames
Window Nation
Aurora, COGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Double-Hung
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Bay Windows
Custom Window Designs
Custom Exteriors
Berthoud, COPrice Transparency
Free assessment
Good Customer Service
Educational Website
Timely Service
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Vinyl Frames
Loveland Window Cleaning Services
Loveland, COFree assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Powerhouse Roofing and Exteriors
Greeley, COEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
DMD Window & Door
Wheat Ridge, COPrice Transparency
Free assessment
Good Customer Service
Timely Service
Services Offered
Wood Frames
Window Replacement/Installation
Vinyl Frames
Glass Doors
Custom Window Designs
Energy-Efficient Options
Bright Idea Egress — Window Kits
Sheridan, COTimely Service
Educational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Wood Frames
Metal Frames
AllGuard Windows and Doors Fort Collins
Fort Collins, COFree assessment
Price Transparency
Good Customer Service
Services Offered
Glass Doors
Vinyl Frames
Metal Frames
Double-Hung
Energy-Efficient Options
Wood Frames
Fiberglass Frames
Window Replacement/Installation
United Windows Pro - Windows and glass repair
Aurora, COEducational Website
Free assessment
Timely Service
Price Transparency
Good Customer Service
Commercial and residential
Fast emergency response
Financing options available
Services Offered
Triple Pane Glass
Window Repair
Wood Frames
Window Replacement/Installation
Tempered Glass
Energy-Efficient Options
Glass Doors
Glass Repair
Storm Exteriors
Centennial, COFree assessment
Timely Service
Price Transparency
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Colorado Windows and Restoration
Highlands Ranch, COTimely Service
Price Transparency
Good Customer Service
Free assessment
Services Offered
Double-Hung
Window Replacement/Installation
Glass Doors
All-Star Construction Windows & Doors
Parker, COEducational Website
Good Customer Service
Free assessment
Services Offered
Vinyl Frames
Mirrors
Window Replacement/Installation
Energy-Efficient Options
Glass Repair
Glass Showers
WestPro | Roofing, Siding, Windows
Longmont, COPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Skylights
Storm/Impact Windows
Rocky Mountain Glass & Shower LLC
Longmont, COGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Glass Showers
Glass Doors
Energy-Efficient Options
Tempered Glass
Window Replacement/Installation
Window Repair
Mirrors
BlueBird Windows & Doors
Lafayette, COGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Double-Hung
Glass Doors
K&G Window Pros
Brighton, COFree assessment
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Calculate how much you can expect to pay for window installation and replacement in Firestone, 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 Firestone Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here are more ways switching out your windows could benefit you:
- Decrease your carbon footprint: In Firestone, you can reduce your indirect greenhouse gas emissions by about 460 pounds per year once you install energy-efficient windows.
- Save on electricity bills: Since energy-efficient windows decrease how much energy you need to heat or cool your home, the switch can help you save about $457 annually on your energy bills in Firestone.
- Protect your investment: When you have an older home, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its value.
- Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Firestone
Let’s take a look at the cost of window replacement and the types of services offered by installers.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range from $200 to $1,200. These figures vary depending on specific characteristics of your installation, like size, material, type, the location of your home, number of windows and more.
It’s important to remember that windows with the best efficiency may cost more initially but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Firestone homeowners $457+ a year when replacing single-pane windows.
The cost of your window installation will also vary based on the type of window material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
When considering window installations, in general there are two types that your installer will have: full-frame and pocket installations.
Full-frame installations involve replacing the full window, including the frame, trim and sill. You most likely need a full-frame installation when you want a new style or your window has significant deterioration. These installations are more involved and will raise the total cost. A pocket installation entails installing a new window without replacing the frame. So, instead of taking out the whole window and reinstalling it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you’re hiring a reputable window installation company, your company can recommend the best type for your project. In Firestone, the decision will mostly depend on the efficiency of your home and how old your existing frames are.
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 Firestone
In our hunt to find the most reliable, eco-friendly window installers in Firestone, the EcoWatch team landed on the above companies as the best window installation companies in the city. Along with energy efficiency, we evaluated window companies all across the state and ranked them based on the following methodology:
Service Area
Since this is a guide for Firestone, we gave more points 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 Firestone.
Work Quality
When it comes to new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the type of window you get. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the highest rates of customer satisfaction. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including quality of parts, quality of installation, cost, warranty, professionalism and more.
Cost
Cheaper windows don’t necessarily 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 awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important to many homeowners. That’s why window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Firestone’s climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of Firestone window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Firestone, CO Window Replacement FAQs
What is the typical cost to replace windows?
The national average cost to install one window is about $600 but can range from $200 to $1,200, based on a variety of factors. The price is usually dependent on the size of the window, the type and material of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What are the most common types of replacement windows?
There are various types of windows you can get for your home, including double-hung and single-hung windows, slider windows, bay windows, awning windows, casement windows, picture windows and transom windows.
What services do window installation companies offer?
Window installation professionals visit your home to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation is complete.
When is the best time of year to replace windows?
Though you can install windows any time of year, warmer weather is usually better for installing replacement windows. Additionally, it shouldn’t be raining, as rain can make the installation harder.
When is it time to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to open or close, they may need to be replaced.