20 Best Window Companies in Westminster, CO (2024 Reviews)

Are you looking to replace your windows? Our list of the top window installation companies can help you narrow down which one to choose.

We analyzed all the top-rated window companies in Westminster 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 February 01, 2024

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 Reviews team is all about finding solutions for eco-conscious homeowners in Westminster. During the winter months, the last thing you want is your heat to leak out of your drafty windows.

Installing efficient windows on your house can help you save money each month on your power bills — and you can help the environment as well.

So if you’re building a new home, renovating or changing out old windows in Westminster, 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 Westminster

The EcoWatch team examined dozens of installers in Westminster to find the best window installation companies for our readers. The companies in this article scored the best in our review categories, such as energy-efficient offerings, availability, customer service, price, local expertise 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 offers windows expertise in Westminster. Window World has about 27 years of experience in the windows industry, and it currently provides services to 200 locations nationwide. Its reputation is backed by hundreds of 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

Window World has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.

How much does Window World cost in Westminster?

Window World does not list prices on its website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to get more accurate information.

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 offers the best availability in Westminster. Andersen has about 27 years of experience in the windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by hundreds of 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

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. 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.

How much does Renewal by Andersen cost in Westminster?

Andersen does not list prices 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. Getting a free quote on its website is the best way to get more accurate information.

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 offers the best warranty in Westminster. Universal has about 20 years of experience in the windows industry, and it currently provides services to 27 states nationwide. Its reputation is backed by hundreds of positive reviews from customers online.

You may want to consider going with Universal if you're interested in 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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. 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 Westminster?

Universal does not list prices on its website, but 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. Getting a free quote on its website is the best way to get more accurate information.

We’ve recommended companies with shining reputations, but bear in mind that these are national companies, so the quality of service may depend on your local crew. We have tried to stay unbiased and transparent by describing pros and cons for each company reviewed.

More Window Companies in Westminster

Renewal by Andersen Window Replacement

Denver, CO
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: http://renewalbyandersendenver.com/
Address: 1401 W Bayaud Ave #7, Denver, CO 80223
Phone: (720) 263-7039

Window World of Denver

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

Services Offered

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

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

Services Offered

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

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

Champion Replacement Windows of Ft. Collins

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

Services Offered

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

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

DaBella

Denver, CO
4.5
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

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

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

Window Nation

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

Services Offered

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

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

Colorado Glass and Mirror LLC

Denver, CO
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Window Replacement/Installation
  • Service icon Custom Glass
  • Service icon Window Repair

Website: https://mycoloradoglass.com/
Address: 1400 W 70th Ave, Denver, CO 80221
Phone: (303) 477-0082

Acorn Glass

Wheat Ridge, CO
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Window Replacement/Installation

Website: https://www.acornglasswheatridge.com/
Address: 9005 W 44th Ave, Wheat Ridge, CO 80033
Phone: (303) 420-0223

DMD Window & Door

Wheat Ridge, CO
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

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

Gravina's Window Center of Littleton

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

Services Offered

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

Website: https://windowsdenver.com/
Address: 1500 W 38th Ave, Denver, CO 80211
Phone: (303) 562-1586

BlueBird Windows & Doors

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

Services Offered

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

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

Glass Doctor of Wheat Ridge

Wheat Ridge, CO
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://glassdoctor.com/wheat-ridge
Address: 10790 W 50th Ave Ste 800, Wheat Ridge, CO 80033
Phone: (303) 792-8225

United Windows & Siding

Wheat Ridge, CO
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://www.unitedwindowsandsiding.com/
Address: 12090 Ridge Rd Unit B, Wheat Ridge, CO 80033
Phone: (720) 535-4767

Rise Renovation

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

Services Offered

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

Website: http://www.riserenovation.com/
Address: 1700 Lincoln St floor 17, Denver, CO 80203
Phone: (720) 295-7451

Colorado Classic Exteriors: Windows, Doors, Pergolas

Arvada, CO
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: http://coloradoclassicexteriors.com/
Address: 7985 Vance Dr #202, Arvada, CO 80003
Phone: (720) 457-5536

A&M WINDOW SERVICE

Northglenn, CO
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

Website: http://amwindow.com/
Address: 405 W 115th Ave Unit 2, Northglenn, CO 80234
Phone: (303) 450-2200

True View Windows & Glass

Westminster, CO
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Tempered Glass
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Mirrors

Website: https://www.trueviewglass.com/
Address: 3200 W 71st Ave #20, Westminster, CO 80030
Phone: (720) 431-8783

Discount Windows & Siding, INC

Denver, CO
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.discountwindows.com/
Address: 4321 N Broadway #9, Denver, CO 80216
Phone: (303) 295-7283

Performance Windows

Broomfield, CO
4.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.goperformancewindows.com/
Address: 590 Burbank St, Broomfield, CO 80020
Phone: (720) 440-2168

KV Windows Inc.

Westminster, CO
4.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

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

Website: https://kvwindowsinc.com/
Address: 3660 W 73rd Ave, Westminster, CO 80030
Phone: (720) 535-9629
Westminster Window Cost Calculator

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

When you upgrade to energy-efficient windows, you may see a few perks, such as:

  • Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
  • Save on power bills: The Department of Energy estimates that heat gained or lost through windows accounts for around 25-30% of residential energy use. Installing energy-efficient windows can help decrease that amount, which helps you save more on your bills.
  • 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.
  • Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can reduce your indirect greenhouse gas emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Westminster

Each window installation company provides various services and has varying price points based on several factors.

How Much Do New Windows Cost?

On average, homeowners in Westminster can anticipate that most window installations will range from $250 to $1,200, with the most common installations sitting at around $600. Costs will differ significantly depending on the number of windows you need, your location, the current condition of your home and the quality of your products. A lot of window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. Additional services will increase your overall project costs.

Whether or not you choose energy-efficient windows is another factor that will affect the cost. These will usually cost more than other windows, but on the other hand, you can save about $448 a year on your energy bills in Westminster.

Asking for free quotes from several companies is the best way to find out which one is right for you.

What Services do Window Installers Offer?

In general, there are two kinds of window installation services companies provide: full-frame and pocket installations.

Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of damage. Full-frame installations involve more time and labor and will increase overall costs. Pocket installations are simpler and won’t cost as much, as they entail simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you should opt for a full-frame installation instead.

If you’re still debating which type of installation you need, you can talk to your installer and get their recommendation. The choice mostly depends on the age of your window frames and if there’s any damage present.

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 Westminster

EcoWatch is different from other reviewers because we look at these companies through a sustainability lens. We’ve assessed the top window replacement companies in Westminster primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Because this is a guide for Westminster, we paid more attention to companies that serve the city. There are certainly other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Westminster.

Work Quality

When selecting new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand of window you choose. 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 patterns in recent customer feedback to determine the companies with the highest rates of customer satisfaction. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including quality of installation, warranty, quality of parts, cost, professionalism and more.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we gave 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 provide lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Westminster, CO Window Replacement FAQs

How much should window installation cost?

The national average cost to install a single window is about $600 but can range between $200 and $1,200, depending on several factors. The price is usually dependent on the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

What are the types of windows?

The most common kinds of windows for homes include: double-hung and single-hung windows, awning windows, picture windows, bay windows, transom windows, casement windows and slider windows.

Can I replace my own windows?

Even though it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Using a window replacement company can help guarantee that the job is done properly and that you won’t have to spend the time and effort to do it yourself.

When is the best time of year to replace windows?

Replacement windows can be installed at any time, but autumn might be the best season. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into your home, so the temperature outside doesn’t necessarily matter that much. Most importantly, the weather should be dry.

Should I replace my windows all at once?

If you want to get more efficient windows and save money on your energy bills, replacing all the windows together is the only way to see a noticeable difference. However, if you have just a few windows that are damaged or leaky, you can replace just those.