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
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Why you can trust EcoWatch
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.
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 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
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 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 WindowsIts 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
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 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 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 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, COPrice Transparency
Good Customer Service
Free assessment
Services Offered
Custom Window Designs
Energy-Efficient Options
Window Replacement/Installation
Bay Windows
Glass Doors
Metal Frames
Vinyl Frames
Double-Hung
Champion Replacement Windows of Ft. Collins
Loveland, COGood Customer Service
Products made in the USA
Free assessment
ENERGY STAR® certified
Price you're quoted is the price you pay
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Bay Windows
Double-Hung
Champion Replacement Windows of Denver
Denver, COFree assessment
Price Transparency
Good Customer Service
Services Offered
Double-Hung
Glass Doors
Window Replacement/Installation
Bay Windows
Power Home Remodeling
Centennial, COFree assessment
Good Customer Service
Price Transparency
Timely Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
DaBella
Cheyenne, WYGood Customer Service
Timely Service
Services Offered
Vinyl Frames
Window Replacement/Installation
Double-Hung
Glass Doors
Window Nation
Aurora, COGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Custom Window Designs
Bay Windows
Energy-Efficient Options
Double-Hung
Loveland Window Cleaning Services
Loveland, COFree assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Custom Exteriors
Berthoud, COGood Customer Service
Timely Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Vinyl Frames
AllGuard Windows and Doors Fort Collins
Fort Collins, COPrice Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Wood Frames
Energy-Efficient Options
Metal Frames
Vinyl Frames
Glass Doors
Fiberglass Frames
Double-Hung
Powerhouse Roofing and Exteriors
Greeley, COGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
DMD Window & Door
Wheat Ridge, COFree assessment
Price Transparency
Good Customer Service
Timely Service
Services Offered
Wood Frames
Custom Window Designs
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Glass Doors
Bright Idea Egress — Window Kits
Sheridan, COPrice Transparency
Good Customer Service
Free assessment
Educational Website
Timely Service
Services Offered
Window Replacement/Installation
Metal Frames
Wood Frames
United Windows Pro - Windows and glass repair
Aurora, COFinancing options available
Free assessment
Fast emergency response
Educational Website
Commercial and residential
Price Transparency
Timely Service
Good Customer Service
Services Offered
Window Repair
Glass Doors
Wood Frames
Energy-Efficient Options
Triple Pane Glass
Tempered Glass
Window Replacement/Installation
Glass Repair
Storm Exteriors
Centennial, COEducational Website
Timely Service
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Colorado Windows and Restoration
Highlands Ranch, COGood Customer Service
Price Transparency
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
3 Bidz Windows
Loveland, COEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Wood Frames
Vinyl Frames
Glass Doors
Nex-Gen Windows & Doors
Fort Collins, COPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Double-Hung
Bay Windows
Glass Doctor of Fort Collins
Fort Collins, COEducational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Window Repair
Energy-Efficient Options
Glass Repair
Glass Showers
Custom Glass
Mirrors
Rocky Mountain Glass & Shower LLC
Longmont, COPrice Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Glass Showers
Energy-Efficient Options
Tempered Glass
Window Replacement/Installation
Window Repair
Mirrors
Glass Doors
WestPro | Roofing, Siding, Windows
Longmont, COGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Storm/Impact Windows
Skylights
Calculate how much you can expect to pay for window installation and replacement in Loveland, 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 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.
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 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.