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
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated January 24, 2025

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

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.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

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 logo
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon 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 Windows

Window 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 logo
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon 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 Windows

Renewal 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, CO
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Vinyl Frames
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Metal Frames

Website: https://fortcollinswindow.com/
Address: 14330 Longs Peak Ct, Longmont, CO 80504
Phone: (970) 305-5060

Champion Replacement Windows of Ft. Collins

Loveland, CO
4.6
★★★★★
  • Pros icon ENERGY STAR® certified
  • Pros icon Price you're quoted is the price you pay
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Products made in the USA

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Doors

Website: https://www.championwindow.com/Ft-Collins/
Address: 5850 Byrd Dr, Loveland, CO 80538
Phone: (970) 744-2604

Champion Replacement Windows of Denver

Denver, CO
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Double-Hung

Website: https://www.championwindow.com/Denver/
Address: 10035 E 40th Ave Suite 400, Denver, CO 80238
Phone: (303) 800-2129

Power Home Remodeling

Centennial, CO
4.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://powerhrg.com/
Address: 7304 S Joliet St #100, Centennial, CO 80112
Phone: (303) 357-2484

DaBella

Denver, CO
4.4
★★★★★
  • Pros icon Wide range of styles
  • Pros icon Good Customer Service
  • Pros icon Customized to your home
  • Pros icon Timely Service
  • Pros icon Triple-pane vinyl windows

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Vinyl Frames

Website: https://dabella.us/location/colorado/
Address: 6600 E Hampden Ave, Denver, CO 80224
Phone: (720) 619-8704

Window Nation

Aurora, CO
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Custom Window Designs

Website: https://www.windownation.com/denver-window-replacement/
Address: 2450 Airport Blvd, Aurora, CO 80011
Phone: (720) 409-0170

Custom Exteriors

Berthoud, CO
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Vinyl Frames

Website: https://customexteriorsllc.com/
Address: 18674 Co Rd 3, Berthoud, CO 80513
Phone: (970) 460-8714

Loveland Window Cleaning Services

Loveland, CO
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: http://www.lovelandwindowcleaningservices.com/
Address: 1083 Winona Dr, Loveland, CO 80537
Phone: (970) 541-3787

Powerhouse Roofing and Exteriors

Greeley, CO
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://powerhouseroofingco.com/
Address: 1907 1st Ave, Greeley, CO 80631
Phone: (970) 324-7651

DMD Window & Door

Wheat Ridge, CO
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Wood Frames
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options

Website: https://www.dmdbuilders.com/
Address: 4251 Kipling St #190, Wheat Ridge, CO 80033
Phone: (303) 757-2721

Bright Idea Egress — Window Kits

Sheridan, CO
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Metal Frames

Website: https://brightideaegress.com/
Address: 3971 S Decatur St Unit C, Sheridan, CO 80110
Phone: (303) 761-3730

AllGuard Windows and Doors Fort Collins

Fort Collins, CO
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Metal Frames
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Wood Frames
  • Service icon Fiberglass Frames
  • Service icon Window Replacement/Installation

Website: https://allguardwindows.com/
Address: 456 S Link Ln, Fort Collins, CO 80524
Phone: (970) 481-5907

United Windows Pro - Windows and glass repair

Aurora, CO
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Commercial and residential
  • Pros icon Fast emergency response
  • Pros icon Financing options available

Services Offered

  • Service icon Triple Pane Glass
  • Service icon Window Repair
  • Service icon Wood Frames
  • Service icon Window Replacement/Installation
  • Service icon Tempered Glass
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Glass Repair

Website: https://www.unitedwindowspro.com/
Address: 4515 S Nepal Ct, Aurora, CO 80015
Phone: (720) 400-2929

Storm Exteriors

Centennial, CO
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.stormexteriors.com/
Address: 7853 E Arapahoe Ct #3100, Centennial, CO 80112
Phone: (720) 900-1316

Colorado Windows and Restoration

Highlands Ranch, CO
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: http://www.coloradowr.com/
Address: 9609 S University Blvd #630414, Highlands Ranch, CO 80130
Phone: (303) 953-0691

All-Star Construction Windows & Doors

Parker, CO
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Vinyl Frames
  • Service icon Mirrors
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Repair
  • Service icon Glass Showers

Website: http://www.allstarconstruction.org/
Address: 515 Singing Hills Rd Unit 104, Parker, CO 80138
Phone: (303) 646-3018

WestPro | Roofing, Siding, Windows

Longmont, CO
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Skylights
  • Service icon Storm/Impact Windows

Website: https://westproroofing.com/
Address: 1321 Sherman Dr, Longmont, CO 80501
Phone: (303) 834-9236

Rocky Mountain Glass & Shower LLC

Longmont, CO
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Mirrors

Website: http://www.rmglass.com/
Address: 13631 N 115th St, Longmont, CO 80504
Phone: (970) 347-9710

BlueBird Windows & Doors

Lafayette, CO
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Glass Doors

Website: https://www.gobluebirdco.com/
Address: 1200 Diamond Cir Unit J, Lafayette, CO 80026
Phone: (303) 810-2888

K&G Window Pros

Brighton, CO
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: https://kgwindowpros.com/
Address: 203 Telluride St Suite 850, Brighton, CO 80601
Phone: (720) 328-2786
Firestone Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Firestone, CO using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

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.

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

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.