20 Best Window Companies in Windsor, CO (2023 Reviews)

Are you thinking about upgrading your windows? Our guide to the top window installation companies can help you narrow down which one to pick.

We analyzed all the top-rated window companies in Windsor 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 September 15, 2023

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.

A guide on the top window installation companies in Windsor may not seem like the most interesting article on the EcoWatch site, but trust us, windows impact your life more than you might think. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.

Replacement windows improve the insulation in your home, not only making you and your family more comfortable during extreme temperatures, but also saving you money and helping the environment.

So if you're constructing a new home, renovating or changing out old windows in Windsor, this guide is the best place to get started.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

Best Window Installation & Replacement Companies in Windsor

The EcoWatch Reviews team researched several window companies in Windsor to find the top ones for our readers. The providers we've reviewed in this article scored best in our categories, including energy-efficient offerings, customer service, price, availability and more.

Window World logo
FAST QUOTE
as little as 30 seconds
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 is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation business, and it has become one of the most respected companies in Windsor.

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 Windows

Window World is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to ask your Window World representative when inquiring about services.

How much does Window World cost in Windsor?

Window World does not outline prices on its website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to request a free quote from the company.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. Hundreds of positive reviews on customer review websites back the company's reputation.

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

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 make sure you mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Windsor?

Prices aren’t listed on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the window installation sector. The company has a lot of glowing reviews from customers on online review websites.

It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct’s commitment to sustainability can be seen in its energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.

How much does Universal Windows Direct cost in Windsor?

Even though prices are not readily available on Universal’s website, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to know for sure is to request a free quote from the company.

Please note that the companies in this section are national, meaning the quality of customer service may vary depending on your local crew. We have tried to be unbiased and transparent by listing pros and cons for each provider.

More Window Companies in Windsor

Renewal by Andersen of Colorado Front Range

Longmont, CO
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Full-Service Installations
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Bay Windows
  • Service icon Sliding Glass
  • 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
4.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Double-Hung

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

Window World of Denver

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

Services Offered

  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Sliding Glass
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Aluminum Window Frames
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options

Website: https://www.windowworldcolorado.com/
Address: 480 E 76th Ave Bldg 5E, Denver, CO 80229
Phone: (303) 574-9594

Champion Replacement Windows of Denver

Denver, CO
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Bay Windows
  • Service icon Residential Windows

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

Window Nation

Aurora, CO
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options

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

The Glass Guru

Loveland, CO
4.5
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Tempered Glass
  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Window Repair
  • Service icon Residential Windows

Website: https://theglassguru.com/locations/fort-collins-co/
Address: 6712 N Franklin Ave, Loveland, CO 80538
Phone: (970) 294-7856

Nex-Gen Windows & Doors

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

Services Offered

  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Window Replacement
  • Service icon Energy-Efficient Options
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: https://nexgenwindowsanddoors.com/
Address: 3600 Mitchell Dr Unit 50C, Fort Collins, CO 80525
Phone: (970) 775-6454

Glass Doctor of Fort Collins

Fort Collins, CO
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Repair
  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Double-Hung

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

AllGuard Windows and Doors Fort Collins

Fort Collins, CO
4.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs

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

Lomax Window & Door Co.

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

Services Offered

  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Commercial Windows
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: https://lomaxcolorado.com/
Address: 5748 S College Ave Unit B, Fort Collins, CO 80525
Phone: (970) 225-3869

Bellwether Windows, Siding, & Doors

Fort Collins, CO
4.2
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Commercial Windows
  • Service icon Fast Delivery
  • Service icon Double-Hung
  • Service icon Aluminum Window Frames
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Window Replacement

Website: https://bellwetherhomes.com/
Address: 625 St Michaels Dr, Fort Collins, CO 80525
Phone: (970) 818-3050

All American Glass and Screen Company

Loveland, CO
4.2
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://www.wefixwindowsandscreens.com/
Address: 2956 Ginnala Dr b1, Loveland, CO 80538
Phone: (970) 699-2104

Glass Doctor of Greeley

Greeley, CO
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Fast Delivery
  • Service icon Glass Showers
  • Service icon Commercial Windows
  • Service icon Window Repair
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Window Replacement

Website: https://glassdoctor.com/greeley/
Address: 6310 W 10th St Unit 1, Greeley, CO 80634
Phone: (970) 616-3100

3 Bidz Windows

Loveland, CO
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

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

Window & Siding Outlet

Loveland, CO
4.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://windowsidingoutlet.com/
Address: 3167 E Eisenhower Blvd C, Loveland, CO 80538
Phone: (970) 233-2263

Wellspring Home Services

Fort Collins, CO
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Window Replacement
  • Service icon Fast Delivery
  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Double-Hung

Website: https://www.wellspringhomeservices.com/
Address: 4412 E Mulberry St Lot 288, Fort Collins, CO 80524
Phone: (719) 659-2759

Moffat Glass

Greeley, CO
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Window Replacement
  • Service icon Full-Service Installations
  • Service icon Glass Showers
  • Service icon Commercial Windows

Website: http://moffatglass.com/
Address: 710 12th St, Greeley, CO 80631
Phone: (970) 352-6625

Home Services at The Home Depot

1100 Nickel Dr, CO
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Stained Glass

Website: https://www.homedepot.com/l/Loveland/CO/Loveland/80537/1529/services
Address: Home Depot, 1100 Nickel Dr, Loveland, CO 80537
Phone: (970) 316-4578

Greyrock Window & Door

Fort Collins, CO
3.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Window Replacement
  • Service icon Custom Window Designs

Website: https://www.greyrockwindow.com/
Address: 3201 E Mulberry St UNIT N, Fort Collins, CO 80524
Phone: (970) 279-3170

Pro Glass & Paint LLP

Greeley, CO
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement
  • Service icon Commercial Windows
  • Service icon Glass Showers
  • Service icon Custom Window Designs

Website: http://proglassandpaint.com/
Address: 2427 6th Ave, Greeley, CO 80631
Phone: (970) 353-3231
Windsor Window Cost Calculator

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

There are quite a few benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the change are the following:

  • Save on power bills: After you switch to energy-efficient windows, you can see a reduction in your bills by about 12% since you'll require less energy to heat or cool your home.
  • Better temperature control in your home: When you reside in a city like Windsor where the summers can be quite hot, you often need to rely on your air conditioner to keep your house cool. Energy-efficient windows can cut back on how much cool air is lost through your windows when cooling your home.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or damaged. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
  • Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Windsor

Windows come in various shapes, styles and purposes, so costs and services will differ remarkably based on several factors. Below, we describe the typical cost and services that you can get from window installers.

How Much Do New Windows Cost?

Generally, Windsor homeowners can anticipate their replacement window installations to range from $250 to $1,200. The average cost sits at approximately $600. Costs will vary considerably depending on your location, the current condition of your home, the quality of your products and the number of windows you need. A lot of window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. These extra services will increase your overall project costs.

It's important to keep in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Windsor homeowners $438+ a year when replacing single-pane windows.

Costs will also vary based on the material of your frame. Aluminum frames have the lowest price. They're sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made with wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.

What Services do Window Installers Offer?

There are generally two kinds of window replacement services: full-frame and pocket installations.

Full-frame installations involve replacing the complete window, including the trim, sill and frame. Full-frame installations are necessary when you want a new style or your window has significant rot. Full-frame installations are more involved and will increase overall costs. A pocket installation entails replacing a window without taking out the complete frame, which is usually less expensive than a full-frame installation.

Your window installation company should be able to help you choose which type of installation you need.

Best Availability

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house

Best Energy-Efficient Features

Champion

★★★★★
4.5

  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty

Window Veteran

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Wide variety of products and services
  • Lifetime Warranty

How We Choose the Best Window Installers in Windsor

EcoWatch is different from other reviewers because we assess these companies through a sustainability lens. Along with energy efficiency, we reviewed each installer and ranked them based on the following methodology:

Service Area

This one is self-explanatory, but we've chosen to highlight window installation companies that serve Windsor so you can find the right window installation company near you.

Work Quality

When selecting new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand of window you get. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another super important review factor. If most customers don't have positive things to say about their experience with a certain window installation company, it won't be featured on EcoWatch.

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs as low as 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. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have a good track record in the industry. Window installation companies that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.

Windsor, CO Window Replacement FAQs

How much does window installation cost?

The national average cost of replacing a single window is about $600 but can range between $200 and $1,200, based on a variety of factors. The price is often influenced by the location of your property, the size of the window and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

Which kind of window should I get?

A window's energy efficiency is affected by several factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient since they are certified by the U.S. Department of Energy.

What do window installation companies do?

Window installers travel to your home to remove your old windows and replace them with new ones. Some companies install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is finished.

Should I replace all my windows at the same time?

If your windows are greater than 20 years old, it's most likely time to replace all of them. At that point, they are usually less efficient, leakier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less stress.

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