28 Best Window Replacement Companies in Niwot, CO (2023 Reviews)
Window Companies Near Me

When you need to replace your windows, our list of the top window installation companies can help you find the provider for you.

We analyzed all the top window installers in Niwot and selected the top 28 based on:

  • Customer reviews
  • Window replacement expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated March 14, 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 review of the top window installation companies in Niwot may not seem like the most compelling article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. During the winter months, the last thing you want is your heat to leak out of your outdated windows.

Installing upgraded, efficient windows on your property can help you save money each month on your energy bills — and you can help the environment, too.

Unlike other review sites, EcoWatch ranks window installation companies on energy efficiency while also taking into consideration cost, customer satisfaction and service area.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Award-winning company
  • Member of US Green Building Council
  • No lifetime warranty

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Great industry reputation
  • Lifetime warranty
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Makes charitable contributions
  • Manufactures products in-house
  • Lifetime warranty
  • Some installations carried out by third-party contractors

Best Window Replacement Companies in Niwot

The EcoWatch Reviews team researched dozens of installers in Niwot to find the top window companies for our readers. The installers reviewed in this article scored best in our categories: energy-efficient offerings, availability, customer service, price and more.

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
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen has the best availability in Niwot. Andersen has been in the window installation industry for around 27 years. The company has hundreds of glowing reviews from customers on online review websites.

Andersen may be the company for you if you're looking for 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to 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 Niwot?

Andersen doesn't have any pricing information available 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. You can ask for a free quote on its website for more information about pricing.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Large serice area
  • 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 Niwot. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for around 27 years. Many positive reviews on customer review websites back the company's reputation.

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 make sure you mention that you're interested in Energy Star windows when inquiring.

How much does Window World cost in Niwot?

Pricing details are not available on Window World's website since the cost of window installment 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. If you'd like to know for sure, you can ask for a quote on the company's website.

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 Lifetime warranty
Cons:
  • Pros icon Some installations carried out by third-party contractors

Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This provider has 20 years of experience in the window installation industry, and it has become one of the best companies in Niwot. Many positive reviews from customers online back the provider's reputation.

If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the perfect provider for you.

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 Niwot?

Universal doesn't have any pricing information available 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. Receiving a free quote on its website is the best way to get more accurate information.

We strive to be unbiased and transparent by including pros and cons for each provider. Additionally, any partnerships do not affect our rankings.

More Window Replacement Companies in Niwot

The Glass Guru

Arvada, CO
5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.theglassguru.com/denver-west-co/
Address: 6618 Wadsworth Blvd, Arvada, CO 80003
Phone: (720) 782-5934

Storm Guard North Metro Denver

Brighton, CO
5
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Stained Glass

Website: https://www.stormguardrc.com/co/denver-north-metro/
Address: 8495 County Rd 2, Brighton, CO 80603
Phone: (303) 223-5719

Window World of Denver

Denver, CO
4.3
★★★★★
  • Pros icon Free Quotes
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Locally Recognized for Quality

Services Offered

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

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

Commercial Storefront Glass Denver

1555 Larimer St, CO
4.3
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Educational Website

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://commercialstorefrontglassdenver.com/
Address: space CR711, 1555 Larimer St, Denver, CO 80202
Phone: (720) 543-7870

Northern Lights Exteriors

Fort Lupton, CO
4.3
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: https://northernlightsexteriors.com/
Address: 11375 Co Rd 23, Fort Lupton, CO 80621
Phone: (303) 776-5263

True View Windows & Glass

Westminster, CO
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon No-fee Quotes
  • Pros icon Timely Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

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

UNI Design

Greeley, CO
4.1
★★★★★
  • Pros icon Timely Service
  • Pros icon Free Quotes
  • Pros icon Locally Recognized for Quality
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Full-Service Installations
  • Service icon Custom Windows

Website: https://www.uni-design.com/
Address: Greeley, CO
Phone: (970) 356-1398

Hillcrest Glass

Longmont, CO
4.1
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Heavy Glass
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.hillcrest-glass.com/
Address: 504 4th Ave, Longmont, CO 80501
Phone: (303) 776-9511

Five Seasons Windows and Doors

Denver, CO
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://fiveseasonswindows.com/
Address: 1040 S Gaylord St Ste. 60, Denver, CO 80209
Phone: (720) 740-1391

Alpen High Performance Products

Louisville, CO
4.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Locally Recognized for Quality
  • Pros icon Reliable Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://thinkalpen.com/
Address: 335-A Centennial Pkwy, Louisville, CO 80027
Phone: (800) 882-4466

Moffat Glass

Greeley, CO
3.9
★★★★★
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Appointment Windows

Services Offered

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

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

Colorado Rockies Windows and Doors

Golden, CO
3.9
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon No-Hassle Pricing

Services Offered

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

Website: http://www.coloradorockieswindowsanddoors.com/
Address: 941 Sleepy Hollow Rd, Golden, CO 80401
Phone: (720) 626-0900

Ameritech Windows

Boulder, CO
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Consistent Workmanship
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.ameritechwindows.com/
Address: 1310 College Ave #400, Boulder, CO 80302
Phone: (303) 444-1998

303 WINDOWS

Denver, CO
3.8
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website
  • Pros icon Reliable Service
  • Pros icon No-fee Quotes

Services Offered

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

Website: https://www.303windows.com/
Address: 2375 S Downing St, Denver, CO 80210
Phone: 303 WINDOWS

Sky Manor Roofing & Exteriors

Thornton, CO
3.8
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows

Website: http://www.skymanorroofing.com/
Address: 13591 High Cir, Thornton, CO 80241
Phone: (303) 876-0055

Reliable Glazing

Denver, CO
3.8
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://www.reliableglazing.com/
Address: 3085 S Rosemary St, Denver, CO 80231
Phone: (720) 981-4048

Mountain View Window & Door

Denver, CO
3.8
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Excellent Customer Service

Services Offered

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

Website: http://www.mtnview.us/
Address: 815 S Jason St, Denver, CO 80223
Phone: (303) 649-2217

Colorado Classic Exteriors: Windows, Siding, Doors, Pergolas

Arvada, CO
3.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Energy-Efficient Options

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

Lifetime Windows & Siding

Denver, CO
3.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Custom Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.lifetimewindowscolorado.com/
Address: 2330 Broadway St Ste 110, Denver, CO 80205
Phone: (303) 536-8809

Slade Glass Co.

Longmont, CO
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Charitable Giving
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.sladeglass.com/
Address: 504 5th Ave, Longmont, CO 80501
Phone: (303) 776-3400

Absolute Glass & Windows LLC

Aurora, CO
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.absoluteglassandwindows.com/
Address: 401 Laredo St C Unit C, Aurora, CO 80011
Phone: (303) 848-4094

Slade Glass Co.

Boulder, CO
3.7
★★★★★
  • Pros icon Charitable Giving
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.sladeglass.com/
Address: 1770 38th St, Boulder, CO 80301
Phone: (303) 442-3662

Alpha Glass and Window, LLC

Englewood, CO
3.7
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Locally Recognized for Quality
  • Pros icon Educational Website

Services Offered

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

Website: https://alphaglassdenver.com/
Address: 1545 W Tufts Ave Ste H, Englewood, CO 80110
Phone: (720) 382-8524

Window Replacement Denver

Denver, CO
3.7
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://windowreplacementdenver.com/
Address: 1480 Wolff St #116, Denver, CO 80204
Phone: (720) 701-2202

Renewal by Andersen of Colorado Front Range

Longmont, CO
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Price Transparency
  • Pros icon Free Quotes

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

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

Colorado Window Source

Denver, CO
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Reliable Service
  • Pros icon Arrives on Time
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.coloradowindowsource.com/
Address: 1390 W Evans Ave Unit D, Denver, CO 80223
Phone: (720) 727-6031

Window Depot USA of Northern Colorado

Loveland, CO
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://windowdepotnoco.com/
Address: 3612 W Eisenhower Blvd unit a, Loveland, CO 80537
Phone: (970) 669-3305

Parilla Window Cleaning and Mobile Screen Repair

Wheat Ridge, CO
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Arrives on Time
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.parillawindowcleaning.com/
Address: 8252 W 44th Ave, Wheat Ridge, CO 80033
Phone: (720) 722-2578

How Installing Energy-Efficient Windows in Niwot Saves You Money

There are several benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch include the following:

  • 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.
  • Save money on power bills: The Department of Energy estimates that heat gained or lost via windows accounts for about 25-30% of energy use in your home. Switching to energy-efficient windows can help reduce that amount, which helps you save $457 a year on your bills.
  • Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help raise the value of your property if you decide to sell.
  • Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can lower your carbon footprint by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Niwot

Each window replacement company offers varying services and has different costs based on a few factors.

How Much Do New Windows Cost?

The national average cost to install a single window is about $600 but can range anywhere from $200 to $1,200. But costs vary remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations and replacements, which carry a higher price tag.

With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Niwot homeowners $457+ a year after replacing single-pane windows.

The cost of your window installation will also vary depending on the kind of window material you choose for the frames. Wood windows are generally the most expensive, but it depends if they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

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

A full-frame installation replaces the full window, such as the windowsill, frame, trim and the window panes. As this kind of installation requires more time and labor, it will cost more than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are on the simpler end and won't carry as large a bill, but you can't do this type of installment if you have any pre-existing rot or water damage.

If you're still debating which kind of installation you should get, you can consult with your provider and get their advice. The decision mostly depends on how old the frames are and if there's any damage present.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Award-winning company
  • Member of US Green Building Council
  • No lifetime warranty

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Great industry reputation
  • Lifetime warranty
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Makes charitable contributions
  • Manufactures products in-house
  • Lifetime warranty
  • Some installations carried out by third-party contractors

How We Choose the Best Window Installers in Niwot

In our hunt to make your home improvements easier and more eco-friendly in Niwot, the EcoWatch Reviews team chose the above companies as the top window installation companies in the city. We have reviewed the top window installers in Niwot mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to reduce your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Since this is a guide for Niwot, 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 Niwot.

Work Quality

We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer featured on this list to make sure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, cost, quality of installation, quality of parts, warranty and more.

Cost

Cheaper windows don't necessarily mean better windows, but we know many of our readers try to keep costs as low as possible. When analyzing providers' prices, we gave higher points 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 that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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

Niwot, CO Window Replacement FAQs

How much does a window install cost?

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

What are the most common types of replacement windows?

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

When do I have to use a window installation company?

Unless you have home repair skills and have all the tools you need to replace your own windows, we recommend hiring a professional. The process of installing windows is quite involved and can take anywhere from four to six hours for a single window. Although it's tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer option.

When is it time to replace your windows?

Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may be in need of replacement.

Should I replace all my windows at the same time?

If you're upgrading your windows because of energy-efficiency, replacing all your windows together is the only way to gain that benefit. However, if you have just one or two windows that are damaged or leaky, you can replace just those.

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