20 Best Window Companies in Darien, CT (2024 Reviews)

Thinking about upgrading your windows? We’ve got you covered in this guide to the top window installation companies.

We analyzed all the top-rated window companies in Darien 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.

A review of the top window installation companies in Darien may not seem like the most compelling article on the EcoWatch site, but trust us, windows impact your life more than you might think. When it’s the middle of winter, your outdated and drafty windows could be making your home more difficult to heat and costing you more in power bills.

Fortunately, saving you energy with upgraded windows also aligns with our goals of conserving energy and the resources it takes to make it.

We’ve compiled this list of the top installation companies to help you in your search, so you can not only benefit from brand-new windows, but also save money on your electricity bills.

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 Darien

The EcoWatch team researched dozens of window companies in Darien to find the top ones for our readers. The companies mentioned in this article scored best in our categories, including energy-efficient offerings, price, availability, customer service 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
  • 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 company has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in the business. Many positive reviews on customer review websites back the provider's reputation.

Andersen may be the company for you if you're interested in 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 is an Energy Star partner offering 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 Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Darien?

Andersen does not display 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. You can request a free quote on its website for more information about the cost.

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 industry, and it has established itself as one of the most reputable companies in the business. Many positive reviews on customer review websites back the provider's reputation.

Window World may be the company for you if you're interested in one 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 offering 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 Darien?

Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. You can request 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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has 16 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in the business. Many positive reviews on customer review websites back the provider's reputation.

Window Nation may be the company for you if you're interested in one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation is an Energy Star partner offering 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 Nation representative when inquiring about services.

How much does Window Nation cost in Darien?

Window Nation does not display prices 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. You can request a free quote on its website for more information about the cost.

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 Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

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. This company has 23 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in the business. Many positive reviews on customer review websites back the provider's reputation.

Aeroseal may be the company for you if you're interested in one that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows is an Energy Star partner offering 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 Aeroseal representative when inquiring about services.

How much does Aeroseal Windows cost in Darien?

Aeroseal does not display prices on its website, but it provides high-quality windows at a competitive price point. You can request a free quote on its website for more information about the cost.

We aim to stay unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not influence our reviews.

More Window Companies in Darien

Renewal by Andersen

Stamford, CT
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Commercial Windows
  • Service icon Storm Doors
  • Service icon Window Install & Replacement
  • Service icon Glass Doors
  • Service icon Andersen
  • Service icon Skylights
  • Service icon Sliding Glass Doors
  • Service icon Bay Windows

Website: https://www.renewalbyandersen.com/window-company/710-westchester/retailer
Address: 421 West Ave Building 1, Stamford, CT 06910
Phone: (203) 406-0545

Window World Westchester

Tuckahoe, NY
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Bay Windows
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Double-Hung

Website: https://www.windowworldwestchester.com/
Address: 134 Marbledale Rd, Tuckahoe, NY 10707
Phone: (914) 750-4353

MK Window Treatments

Greenwich, CT
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames

Website: http://www.mkwindowtreatments.com/
Address: 270 Mason St, Greenwich, CT 06830
Phone: (203) 900-1500

Greenwich Windows Replacement

Greenwich, CT
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Bay Windows

Website: http://www.greenwichwr.com/
Address: 777 West Putnam Avenue, Greenwich, CT 06830
Phone: (203) 424-3446

Windows By Toll

Stamford, CT
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Dormer Windows
  • Service icon Marvin
  • Service icon Double-Hung
  • Service icon Glass Showers
  • Service icon Andersen
  • Service icon Window Install & Replacement
  • Service icon Bay Windows
  • Service icon Window Repair

Website: https://windowsbytoll.com/
Address: 226 Selleck St, Stamford, CT 06902
Phone: (203) 404-0403

Pella Windows & Doors of Norwalk

Norwalk, CT
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Commercial Windows
  • Service icon Pella
  • Service icon Window Install & Replacement
  • Service icon Double-Hung
  • Service icon Fiberglass Frames
  • Service icon Storm Doors
  • Service icon Sliding Glass Doors
  • Service icon Glass Doors
  • Service icon Bay Windows

Website: https://www.pellabranch.com/hartford/showrooms/norwalk/
Address: 464 Main Ave, Norwalk, CT 06851
Phone: (203) 846-9450

First Choice Windows & Remodeling

Greenwich, CT
3.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Marvin
  • Service icon Window Install & Replacement
  • Service icon Pella

Website: http://www.fcwindow.com/
Address: 6 Oak St W, Greenwich, CT 06830
Phone: (203) 987-3131

American Windows Plus Inc

White Plains, NY
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Sliding Glass Doors
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Pella
  • Service icon Wood Frames
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames
  • Service icon Vinyl Frames
  • Service icon Commercial Windows
  • Service icon Window Repair
  • Service icon Marvin
  • Service icon Andersen

Website: https://www.americanwindowsplus.com/
Address: 169 Mamaroneck Ave 2fl # 11, White Plains, NY 10601
Phone: (646) 875-6737

Mr. Handyman of Huntington and Smithtown

East Northport, NY
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Commercial Windows
  • Service icon Glass Repair
  • Service icon Window Repair
  • Service icon Bay Windows

Website: https://www.mrhandyman.com/huntington-smithtown/
Address: 514 Larkfield Rd Suite 8, East Northport, NY 11731
Phone: (631) 257-3213

Homestead Window Treatments

Huntington Station, NY
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Repair
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement

Website: https://homesteadwindowtreatments.com/
Address: 11 Walt Whitman Rd, Huntington Station, NY 11746
Phone: (631) 380-4992

Klar Studio Custom European Windows & Doors

Norwalk, CT
3.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Energy-Efficient Options
  • Service icon Aluminum Frames
  • Service icon Custom Window Designs

Website: http://klarstudio.com/
Address: 258 Main Ave, Norwalk, CT 06851
Phone: (203) 496-4307

Artan Window Works | Window Repair

Glen Head, NY
5
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Wood Frames
  • Service icon Window Repair
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames
  • Service icon Screen Repair

Website: https://artanwindowworks.com/
Address: 13 Glen Ln, Glen Head, NY 11545
Phone: (516) 604-5104

Westchester Window

Thornwood, NY
4.9
★★★★★
  • 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 Window Install & Replacement
  • Service icon Window Repair
  • Service icon Wood Frames
  • Service icon Aluminum Frames

Website: http://www.westchesterwindow.com/
Address: 51 Kensico Rd b, Thornwood, NY 10594
Phone: (914) 310-4421

Connecticut Glass & Mirror

Stamford, CT
2.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Skylights
  • Service icon Sliding Glass Doors
  • Service icon Mirrors
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Glass Showers

Website: https://www.connecticutglassandmirror.net/
Address: 100 Research Dr, Stamford, CT 06906
Phone: (203) 327-5730

Nelson Glass & Mirror

Port Chester, NY
2.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Mirrors
  • Service icon Commercial Windows
  • Service icon Window Repair
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Storm Windows
  • Service icon Aluminum Frames
  • Service icon Screen Repair
  • Service icon Window Install & Replacement

Website: http://nelson-glass.com/
Address: 166 N Main St, Port Chester, NY 10573
Phone: (914) 934-1311

Eco Windows and Doors Norwalk CT

Norwalk, CT
2.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Tempered Glass
  • Service icon Commercial Windows
  • Service icon Custom Window Designs
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames

Website: https://ecowindowsusa.com/
Address: 270 Main Ave, Norwalk, CT 06851
Phone: (203) 636-0011

Wiser Home Remodeling

New Canaan, CT
2.8
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Install & Replacement
  • Service icon Andersen
  • Service icon Marvin

Website: https://www.wiserhomeremodeling.com/
Address: 72 Grove St, New Canaan, CT 06840
Phone: (203) 594-7814

Window Depot USA of Southern CT

Trumbull, CT
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Andersen
  • Service icon Triple Pane Glass
  • Service icon Sliding Glass Doors
  • Service icon Window Install & Replacement
  • Service icon Energy-Efficient Options
  • Service icon Fiberglass Frames
  • Service icon Vinyl Frames

Website: http://windowdepotsouthernct.com/
Address: 5726 Main St STe 2a, Trumbull, CT 06611
Phone: (203) 309-6027

Aesthetic Renovations

Bedford, NY
3.4
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Window Install & Replacement

Website: http://aestheticrenovations.com/
Address: 40 Village Green Box 469, Bedford, NY 10506
Phone: (914) 707-0059

Doors & Windows

Albertson, NY
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Vinyl Frames
  • Service icon Wood Frames
  • Service icon Commercial Windows
  • Service icon Window Install & Replacement
  • Service icon Aluminum Frames
  • Service icon Bay Windows

Website: http://usdoorswindows.com/
Address: 830 Willis Ave, Albertson, NY 11507
Phone: (516) 517-4328
Darien Window Cost Calculator

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

Energy-efficient windows can benefit you in more than one way. Here are a few reasons you may want to take the plunge and make the switch:

  • Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, particularly if you have an older home.
  • Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
  • Decrease your carbon footprint: Decreasing how much energy you use also lowers your carbon emissions. You could reduce it by 147 pounds per year on average.
  • Save money on power bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of residential energy use. Installing energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.

Estimated Cost of Window Replacement in Darien

Windows come in different purposes, styles and shapes, so costs and services will differ remarkably based on your project. Below, we go over the average cost and services that you can get from window replacement companies.

How Much Do New Windows Cost?

According to our market research, the national average cost of installing a single window is around $600. However, window replacement costs can range from $200 to $1,200 for each window. How much it will cost depends on several factors, like number of windows, the location of your home, type, size, material and more.

Whether or not you want energy-efficient windows is another factor that will determine the cost. These will usually cost more than other windows, but on the other hand, you can save about $441 a year on your energy bills in Darien.

Costs will also vary depending on the material you choose for your window frames. Aluminum frames have the lowest price. They’re sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide 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?

Generally, there are two types of window installation services companies offer: full-frame and pocket installations.

A full-frame installation replaces the complete window, such as the windowsill, frame, trim and the window panes. Because this kind of installation requires more time and labor, it will be more expensive than a pocket installation. A pocket installation means replacing a window without removing the complete frame, which is usually cheaper than a full-frame installation.

If you’re hiring a reputable window installation company, your company can recommend the best type for your project. In Darien, the decision will mostly depend on how much damage there is currently and the age and condition of your existing frames.

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 Darien

EcoWatch reviews are different from most reviews because we examine these companies through a sustainability lens. Along with energy efficiency, we evaluated each installer and ranked them based on the following methodology:

Service Area

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

Work Quality

When choosing new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand of window you opt for. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have good things to say about their experience with a certain company, it won’t be featured on EcoWatch.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers’ prices, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

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

Years of Experience

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

Darien, CT Window Replacement FAQs

How much should a window install cost?

The typical cost of replacing a window can range between $450 and $650. There are a variety of factors that affect how much it costs, including your property’s location, local labor costs, the number of windows, the materials used in designing the windows, how energy-efficient the windows are and styles and sizes of windows.

What type of window is the best for energy efficiency?

Generally, double-pane windows are more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want to be sure you’ll get the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — this means they’re certified energy-efficient by the U.S. Department of Energy.

When do I need to use a window installation company?

Unless you’re handy and have the time needed to replace your own windows, we recommend hiring the pros. The process of installing windows is quite involved and can take anywhere from four to six hours for one 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.

How do you know it’s time to replace your windows?

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

How long does it usually take to install windows?

Since a window takes about 30 minutes to install, around 16 windows can be installed in a typical 8-hour work day.

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