20 Best Window Companies in Loveland, CO (2025 Reviews)

Looking to improve your home’s energy efficiency? The best window replacement companies can help.

We analyzed all the top-rated window companies in Loveland 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.

Although clean energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home’s efficiency can also have a big impact on home energy conservation. If you have old or damaged windows, your HVAC system could be working extra hard to heat or cool your house. This means spending more on power bills.

That’s not great for either your bank account or the environment, but one of the best window installation companies can help with that.

Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also balancing cost, customer satisfaction and service area.

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

Best Window Installation & Replacement Companies in Loveland

The EcoWatch team evaluated many window installation companies in Loveland to find the best ones for our readers. The installers in this article passed our review standards for energy-efficient offerings as well as price, local expertise, customer service and beyond.

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 has windows expertise in Loveland. This provider has 27 years of experience in the window installation business, and it has proved to be one of the best companies in the business. The company has many positive reviews from customers online.

You may want to consider going with Window World if you're interested in 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 Windows

Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window World cost in Loveland?

Window World doesn’t have any pricing information listed on its website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can ask for a quote on the company’s website.

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 has the best availability in Loveland. This provider has 27 years of experience in the window installation business, and it has proved to be one of the best companies in the business. The company has many positive reviews from customers online.

You may want to consider going with Andersen if you're interested in 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 Windows

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. Not all of Andersen’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Loveland?

Andersen doesn’t have any pricing information listed 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. If you’d like more accurate information, you can ask for a quote on the company’s website.

We strive to remain unbiased and transparent by describing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Companies in Loveland

Renewal by Andersen Window Replacement

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

Services Offered

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

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

Services Offered

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

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 Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

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 Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

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

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

DaBella

Cheyenne, WY
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

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

Website: https://dabella.us/location/cheyenne/
Address: 4000 Airport Pkwy W, Cheyenne, WY 82001
Phone: (307) 284-2091

Window Nation

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

Services Offered

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

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

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

Custom Exteriors

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

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

AllGuard Windows and Doors Fort Collins

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

Services Offered

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

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

Powerhouse Roofing and Exteriors

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

Services Offered

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

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 Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

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

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

United Windows Pro - Windows and glass repair

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

Services Offered

  • Service icon Window Repair
  • Service icon Glass Doors
  • Service icon Wood Frames
  • Service icon Energy-Efficient Options
  • Service icon Triple Pane Glass
  • Service icon Tempered Glass
  • Service icon Window Replacement/Installation
  • 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 Educational Website
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • 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 Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Free assessment

Services Offered

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

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

3 Bidz Windows

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Glass Doors

Website: http://www.3bidzwindows.com/
Address: 1633 Foxtrail Dr, Loveland, CO 80538
Phone: (970) 219-6940

Nex-Gen Windows & Doors

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

Services Offered

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

Website: https://nexgenwindowsanddoors.com/
Address: 3600 Mitchell Dr Unit 50C, Fort Collins, CO 80525
Phone: (970) 593-1500

Glass Doctor of Fort Collins

Fort Collins, CO
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://glassdoctor.com/fort-collins
Address: 2901 S College Ave, Fort Collins, CO 80525
Phone: (970) 223-9963

Rocky Mountain Glass & Shower LLC

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

Services Offered

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

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

WestPro | Roofing, Siding, Windows

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

Services Offered

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

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

Calculate how much you can expect to pay for window installation and replacement in Loveland, 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 Loveland Saves You Money

Switching to energy-efficient windows can help improve the comfort of your home and help you save on power bills. Here are more ways upgrading your windows could help you:

  • Save on power bills: Since energy-efficient windows decrease the amount of energy needed to heat or cool your home, the switch can help you save around $522 annually on your energy bills in Loveland.
  • Reduce your carbon footprint: By using less energy once upgrading to Energy Star certified windows, you’ll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or damaged. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Loveland

Windows come in various shapes and sizes, so costs and services will vary greatly. Here are the typical costs and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

Generally, homeowners in Loveland can expect that most window installations will range from $250 to $1,200, with the most common installations sitting at about $600. But prices differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door installations, which will make your project cost more.

It’s also worth keeping in mind that energy-efficient windows will typically cost more upfront, but Energy Star estimates that upgrading the windows on your Loveland home can mean 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 upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.

How much your window installation costs will also vary depending on the kind of material you choose for the frames. Wood windows are usually the most expensive, though 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, there are generally two types that your provider will have: full-frame and pocket installations.

A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. Because this type of installation is more involved, it will cost more than a pocket installation. A pocket installation entails replacing a window within the existing frame, which is usually less expensive than a full-frame installation.

Your window replacement company will be able to help you choose what’s best for your needs. In Loveland, the decision will mostly depend on how old your home is and if there’s any moisture damage. Wood can decay if not properly maintained over the years, so it’s a good idea to have a professional examine your frames and window sills.

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 Loveland

In our hunt to make your home improvements easier and more eco-friendly in Loveland, the EcoWatch Reviews team chose the above companies as the top window installation companies in the city. We’ve assessed the best window installers in Loveland mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Because this is a guide for Loveland, we only included companies that cover the city. There are certainly other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Loveland.

Work Quality

When picking new windows, the quality and breadth of services often plays just as important of a role in overall efficiency and performance as the brand of window you opt for. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

We analyzed trends in recent online reviews to determine the companies with the most customer satisfaction. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including professionalism, cost, quality of installation, quality of parts, warranty and more.

Cost

This one is a give-and-take: similar to other services, cheap window installation companies may not provide the highest quality service. Still, we want to make sure we’re highlighting companies that provide a range of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed, windows are a considerable investment, so you’ll want to make sure that investment is well protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Due to Loveland’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Loveland window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Loveland, CO Window Replacement FAQs

What is the average cost to replace windows in a home?

The national average cost of replacing a single window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is typically dependent on the location of your property, the size of the window and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

Which kind of window should I get?

Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.

Can you install your own windows?

If you’re handy and know how to replace a window, it’s possible to install your own windows. But if you don’t have the time or know-how, we recommend getting a professional to do it for you.

How do you know it’s time to replace your windows?

Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to open or close, they may need to be replaced.