27 Best Window Replacement Companies in Sterling, CT (2023 Reviews)
Window Companies Near Me

Thinking about replacing your home's windows? We've got you covered in this list of the best window installation companies.

We analyzed all the top window installers in Sterling and selected the top 27 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 best window replacement companies in Sterling may not seem like the most riveting article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. Drafty or leaky windows can decrease your home's energy efficiency by up to 30%, according to the Department of Energy. In Sterling, that's around $457 per year that you could save on your power bills by making the switch.

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

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

Best Overall

Renewal by Andersen

★★★★★
4.5

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

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • EnergyStar Partner
  • Great industry reputation
  • Quality of service will depend on your area

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Manufactures products in-house
  • Great industry reputation
  • No lifetime warranty

Best Window Replacement Companies in Sterling

The EcoWatch Reviews team researched many window installation companies across Sterling to narrow our list down to the best ones. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

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

Renewal by Andersen provides the best availability in Sterling. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. 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. The provider has hundreds of glowing reviews from customers online.

If you're looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the provider for you.

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 Sterling?

Pricing details are not available on Andersen's website because the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to ask for a free quote from the company.

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

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Low prices relative to competitors
  • Pros icon EnergyStar Partner
  • Pros icon Great industry reputation
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Sterling. It's 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 industry, and it has proved to be one of the most reputable companies in the business. The provider has a lot of positive reviews from customers online.

You may want to consider opting for 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for 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 Sterling?

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

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Great industry reputation
Cons:
  • Pros icon No lifetime warranty

Aeroseal Windows is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has been in the window installation business for about 23 years.

It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

There are a wide variety of window types available from Aeroseal Windows, some of which are Energy Star products. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.

How much does Aeroseal Windows cost in Sterling?

Even though prices are not readily available on Aeroseal's website, it provides high-quality windows at a competitive price point. You can ask for a free quote on its website for more information about the cost.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation provides the best residential windows in Sterling. This company has been in business since 2006 and currently serves residents within 75 miles of its showrooms, which are in 13 states. Hundreds of positive reviews on customer review websites back the company's reputation.

If you're looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, this may be the perfect provider for you.

Energy Efficiency of Window Nation Windows

Window Nation has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.

How much does Window Nation cost in Sterling?

Window Nation doesn't have any cost information listed on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to get more accurate information is to ask for a free quote from the company.

We've recommended companies with good reputations, but note that these are national companies, so your service may depend on your local crew. We have tried to stay unbiased and transparent by including pros and cons for each company we reviewed.

More Window Replacement Companies in Sterling

United Better Homes

Central Falls, RI
4.1
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Consistent Workmanship
  • Pros icon Timely Service
  • Pros icon Free Quotes

Services Offered

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

Website: https://www.unitedbetterhomes.com/
Address: 535 Pine St, Central Falls, RI 02863
Phone: (401) 274-0111

Shine Construction Inc

Uxbridge, MA
4.1
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.shineconstructioninc.com/
Address: 301 N Main St, Uxbridge, MA 01569
Phone: (508) 278-3300

Shine Construction Inc

Uxbridge, MA
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

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

Website: https://www.shineconstructioninc.com/
Address: 301 N Main St, Uxbridge, MA 01569
Phone: 301 N Main St

Krystal Glass & Door Co

Smithfield, RI
4.1
★★★★★
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://krystalglassri.com/
Address: 9 Rocky Hill Rd Unit B, Smithfield, RI 02917
Phone: (401) 231-1600

The Window Source RI

Smithfield, RI
4.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Architectural Glass
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.windowsourceri.com/
Address: 127 Dean Ave, Smithfield, RI 02917
Phone: (401) 270-0160

Guaranteed Building Maintenance

Sturbridge, MA
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Dependable Service
  • Pros icon Arrives on Time

Services Offered

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

Website: https://gbmaintco.com/
Address: 20 Ponton St, Sturbridge, MA 01566
Phone: (508) 450-7472

United Glass & Mirror Co

Bozrah, CT
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Award-Winning
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.neglassmirror.com/residential-2/
Address: 15 Stockhouse Rd, Bozrah, CT 06334
Phone: (860) 886-0539

Mr. Handyman of Norwich, New London and Glastonbury

Norwich, CT
3.9
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/norwich-newlondon-ct/
Address: 66 Franklin St Suite 11, Norwich, CT 06360
Phone: (860) 300-3486

Thomas Garbati Builders, LLC

Waterford, CT
3.7
★★★★★
  • Pros icon Educational Website
  • Pros icon No-fee Quotes
  • Pros icon Timely Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung

Website: http://garbatibuilders.com/
Address: 179 Butlertown Rd, Waterford, CT 06385
Phone: (860) 443-1232

Window World of Rhode Island

Warwick, RI
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Educational Website
  • Pros icon Charitable Giving

Services Offered

  • Service icon Custom Window Designs
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldri.com/
Address: 380 Jefferson Blvd, Warwick, RI 02886
Phone: (401) 336-6815

Henderson Roofing

Westerly, RI
3.6
★★★★★
  • Pros icon Award-Winning
  • Pros icon Reliable Service
  • Pros icon No-fee Quotes
  • Pros icon Educational Website

Services Offered

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

Website: https://johnhendersonconstruction.com/
Address: 35 Crestview Dr, Westerly, RI 02891
Phone: (401) 208-0316

Window Wizards

Pawcatuck, CT
3.6
★★★★★
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Arrives on Time

Services Offered

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

Website: https://www.windowwizardsllc.com/
Address: Pawcatuck, CT
Phone: (860) 501-4711

The Siding Store, Inc

Plainfield, CT
3.6
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Good Customer Service
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship

Services Offered

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

Website: http://www.thesidingstoreinc.com/
Address: 408 Norwich Rd, Plainfield, CT 06374
Phone: (860) 564-7088

GA Siding, Windows & Roofing

Oxford, MA
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Arrives on Time
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://gasidingandroofing.com/
Address: 308 Main St, Oxford, MA 01540
Phone: (774) 276-0435

Handyman Services of CT LLC

Niantic, CT
3.4
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Supports Charities
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass

Website: http://www.handymanservicesofct.com/
Address: 361 Main St #1a, Niantic, CT 06357
Phone: (860) 434-1004

Jancon Exteriors

Franklin, MA
3.4
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Consistent Workmanship
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Double-Hung
  • Service icon Residential Windows
  • Service icon Full-Service Installations
  • Service icon Custom Windows

Website: https://www.janconexteriors.com/
Address: 20 Grove St Suite #3, Franklin, MA 02038
Phone: (508) 520-3935

Glass America

7+ years in business · Westerly, RI
3.4
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Arrives on Time
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: https://www.glassusa.com/
Address: 7+ years in business · Westerly, RI
Phone: (401) 622-1182

Lockheed Architectural Solutions, Inc.

Pascoag, RI
3.4
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://lockheedsolutions.com/
Address: 925 S Main St, Pascoag, RI 02859
Phone: (401) 568-3061

Renewal by Andersen of Rhode Island

Smithfield, RI
3.3
★★★★★
  • Pros icon Reliable Service
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://windowsrhodeisland.com/
Address: 10 Reservoir Rd, Smithfield, RI 02917
Phone: (401) 264-0052

Christopher Home Improvement

Norwich, CT
3.3
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

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

Website: https://christopherimprovement.com/
Address: 16 A Winchester St, Norwich, CT 06360
Phone: (860) 381-9336

Renewal by Andersen Windows & Doors

Newport, RI
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://windowsrhodeisland.com/newport-ri-windows-doors/
Address: 59 Eastnor Rd, Newport, RI 02840
Phone: (401) 264-0048

Providence Glass & Mirror, LLC

Providence, RI
3.2
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: https://providenceglassandmirror.com/
Address: 258 Woonasquatucket Ave, Providence, RI 02911
Phone: (401) 473-3279

Marshall Building & Remodeling

Riverside, RI
3.2
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Price Transparency
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service

Services Offered

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

Website: https://www.marshallbuildingandremodeling.com/
Address: 152 Forbes St, Riverside, RI 02915
Phone: (401) 438-1499

B&R Home Improvement

Central Falls, RI
3.2
★★★★★
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: http://www.bandrhomeimprovement.com/
Address: 16 Pacific St, Central Falls, RI 02863
Phone: (401) 365-8909

The Roofing Store LLC

Plainfield, CT
3.2
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows

Website: http://roofingstorellc.com/
Address: 496 Norwich Rd, Plainfield, CT 06374
Phone: (860) 564-8300

Custom Built

Auburn, MA
3.2
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

Website: http://custombuiltinc.com/
Address: Auburn, MA
Phone: (401) 647-6204

Pella Windows & Doors of Seekonk

Seekonk, MA
3.1
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Educational Website
  • Pros icon Free Quotes

Services Offered

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

Website: https://www.pellabranch.com/southern-new-england/showrooms/seekonk/
Address: 20 Commerce Way Suite 11, Seekonk, MA 02771
Phone: (508) 336-6766

How Installing Energy-Efficient Windows in Sterling Saves You Money

Energy-efficient windows can provide benefits in more than one way. Here are some reasons you may want to consider making the switch:

  • Save on electricity bills: Once you install energy-efficient windows, you can expect a reduction in your bills by about 12% since you'll need less energy to heat or cool your house.
  • Reduce your carbon footprint: In Sterling, you can reduce your indirect greenhouse gas emissions by about 147 pounds per year once you switch to energy-efficient windows.
  • Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help increase the value of your house if you decide to sell.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.

Estimated Cost of Window Replacement in Sterling

When considering window installation, each company offers different services and costs. Let's take a look at some average costs and services.

How Much Do New Windows Cost?

Generally, Sterling homeowners can expect their window installations to range from $250 to $1,200. The most common installations sit at approximately $600. These figures vary based on the specifics of your installation, such as the location of your home, number of windows, material, size, type and more.

It's important to keep in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Sterling homeowners $457+ a year when replacing single-pane windows.

Another factor that influences the total cost is the material you pick for your frame. Aluminum frames are generally the least pricey and are sturdy and light, but they provide poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.

What Services do Window Installers Offer?

In regard to window replacements, in general there are two kinds that your installer will have: full-frame and pocket installations.

Full-frame installations involve replacing the full window, including the frame, sill and trim. You most likely need a full-frame installation when you want to change the style of your windows or your window has noticeable damage. Because full-frame installations are more involved, they will raise the total cost. Pocket installations are on the simpler end and won't cost as much, as they entail merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you may have to get a full-frame installation instead.

Your window installation company will be able to help you decide what's best for your needs. In Sterling, the decision will mostly depend on how old your windows are and if there's any damage. Wood can decay if not properly maintained over the years, so it's a good idea to have a professional assess your frames and window sills.

Best Overall

Renewal by Andersen

★★★★★
4.5

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

Best Affordability

Window World

★★★★★
4.5

  • Low prices relative to competitors
  • EnergyStar Partner
  • Great industry reputation
  • Quality of service will depend on your area

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Low number of customer complaints
  • Manufactures products in-house
  • Great industry reputation
  • No lifetime warranty

How We Choose the Best Window Installers in Sterling

In our search to make your home improvements easier and more eco-friendly in Sterling, the EcoWatch team evaluated dozens of companies before deciding on these. We've reviewed the top window installation companies in Sterling mostly based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installers that serve Sterling so you can find a quality window installation company near you.

Work Quality

We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each company on this list to make sure its contractors are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.

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 most other categories, including warranty, quality of parts, cost, professionalism, quality of installation and more.

Cost

This one is a give-and-take: similar to most services, cheap window installation companies won't always provide the most quality service. On the other hand, we want to ensure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.

Warranty

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

Years of Experience

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

Sterling, CT Window Replacement FAQs

What is the typical cost to install windows?

The average cost of installing one window can range between $450 and $650. There are a variety of factors that influence the cost, including the materials used in designing the windows, how energy-efficient the windows are, your property's location, local labor costs, the number of windows and styles and sizes of windows.

What kind of window is the most energy-efficient?

Generally, double-pane windows are 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'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they're certified energy-efficient by the U.S. Department of Energy.

Can I replace my own windows?

While it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Using a window installation company can help guarantee that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.

When is the best time of year to replace windows?

Although you can install windows any time of year, warmer weather is often better for installing replacement windows. In addition, the weather should be dry, since rain can make the installation more difficult.

Should I replace my windows all at the same time?

If you're upgrading your windows because of energy-efficiency, replacing all of the windows at once is the only way to see a noticeable difference. However, if you have only one or two windows that are damaged or drafty, you can replace just those.

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