20 Best Window Companies in New Canaan, CT (2025 Reviews)
Looking to replace your windows? We’ve got all the information you need in this guide to the best window installation companies.
We analyzed all the top-rated window companies in New Canaan and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping New Canaan homeowners make their homes more eco-friendly. When it’s the middle of winter, your old and drafty windows could be making your home more difficult to heat and costing you more in power bills.
Luckily, saving you energy with more efficient windows also helps our goals of conserving energy and the resources it takes to generate it.
We’ve compiled this guide on 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
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in New Canaan
The EcoWatch team assessed several window installation companies across New Canaan to narrow our list down to the top ones. We assessed the providers on their energy-efficient offerings, customer service, coverage area, local experience, price and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World has windows expertise in New Canaan. 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.
You may want to consider going with Window World if you're interested in a installer 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 WindowsThere are a wide variety of window types that Window World offers, some of which are Energy Star products. 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 New Canaan?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. The best way to know for sure is to get a free quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen has the best availability in New Canaan. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for around 27 years.
You may want to consider going with Andersen if you're interested in a installer 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 WindowsThere are a wide variety of window types that Renewal by Andersen offers, some of which are Energy Star products. 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 New Canaan?Pricing details are not available on Andersen’s website since the cost of window installment depends 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 get a free quote from the company.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in New Canaan. It's 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 business for around 23 years.
You may want to consider going with Aeroseal if you're interested in a installer that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide variety of window types that Aeroseal Windows offers, 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 New Canaan?Pricing details are not available on Aeroseal’s website since the cost of window installment depends on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. The best way to know for sure is to get a free quote from the company.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation has the best residential windows in New Canaan. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window business for around 16 years.
You may want to consider going with Window Nation if you're interested in a installer that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsThere are a wide variety of window types that Window Nation offers, some of which are Energy Star products. 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 New Canaan?Pricing details are not available on Window Nation’s website since the cost of window installment depends on how many and what type(s) of windows you need. However, 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 know for sure is to get a free quote from the company.
We’ve recommended installers with good reputations, but note that these are national companies, so the quality of service may differ depending on your local crew. We have tried to be unbiased and transparent by describing pros and cons for each company reviewed.
More Window Companies in New Canaan
Renewal by Andersen of Long Island
Farmingdale, NYPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Double-Hung
Bay Windows
Glass Doors
Skylights
Power Home Remodeling
Trumbull, CTTimely Service
Good Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
United Home Experts
Norwalk, CTEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Fiberglass Frames
Greenwich Windows Replacement
Greenwich, CTGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Window Depot USA of Southern CT
Trumbull, CTPrice Transparency
Good Customer Service
Timely Service
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Bay Windows
Double-Hung
Glass Doors
Triple Pane Glass
Vinyl Frames
Window Replacement/Installation
Bert Falsetti's Home Improvement LLC
Shelton, CTServices Offered
Double-Hung
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
M & R Windows
Bronx, NYTimely Service
Price Transparency
Services Offered
Window Replacement/Installation
Putnam Windows Inc.
Cold Spring, NYFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Vinyl Frames
Wood Frames
Glass Doors
Window Replacement/Installation
Doors & Windows
Albertson, NYSunday availability
Online product shopping
Price Transparency
Free assessment
Good Customer Service
Free in-home or virtual consultation
Educational Website
Services Offered
Bay Windows
Vinyl Frames
Window Replacement/Installation
Wood Frames
Double-Hung
Aspen Home Remodeling, LLC.
Oradell, NJGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Energy-Efficient Options
Skylights
Window Replacement/Installation
Edge Remodeling, Inc.
Franklin Square, NYFree assessment
Price Transparency
Labor warranties available
Family-owned and operated
Free same-day estimates
Good Customer Service
Services Offered
Window Replacement/Installation
Parco Home Improvement Corp.
Franklin Square, NYPrice Transparency
Free assessment
Services Offered
Vinyl Frames
Energy-Efficient Options
Window Replacement/Installation
Flawless Glass & Mirror LLC
Holbrook, NYFree in-home consultation
Owner-operated small business
Free assessment
Customized glass options
Good Customer Service
Price Transparency
Educational Website
Services Offered
Glass Showers
Window Replacement/Installation
Mirrors
HDL Construction LLC — Windows replacement, Roofing, Roof service, Siding replacement, Chimney, Deck, Masonry
Hasbrouck Heights, NJGood Customer Service
24-hour emergency service
Free assessment
Price Transparency
Educational Website
Saturday and Sunday availability
Free in-home consultation
Services Offered
Window Replacement/Installation
Cityproof Soundproof Windows
Long Island City, NYTrademark soundproof Citiwindows
No-construction services available
Over 50,000 installations completed
Educational Website
Free assessment
Price Transparency
Good Customer Service
Timely Service
Services Offered
Custom Window Designs
Window Replacement/Installation
Energy-Efficient Options
Frank Conforti Contracting
North Haledon, NJEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Repair
Skylights
Energy-Efficient Options
Window Replacement/Installation
F5 Remodeling
Rutherford, NJFull-service installation
Minority-owned and operated
Educational Website
Price Transparency
Free assessment
Good Customer Service
Family-owned and operated
Services Offered
Window Replacement/Installation
MK Window Treatments
Greenwich, CTGood Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Westchester Window
Thornwood, NYGood Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Wood Frames
Glass Doors
Window World Westchester
Tuckahoe, NY3D home visualizer
Good Customer Service
Free in-home or virtual consultation
Financing options available
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Double-Hung
Calculate how much you can expect to pay for window installation and replacement in New Canaan, CT using our customized window cost calculator.
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 New Canaan Saves You Money
By upgrading to energy-efficient windows, you can take advantage of several benefits, such as:
- Save on power 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 home.
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Protect your investment: If you have a relatively old home, your windows are most likely outdated. Updating your windows can make your home more comfortable and also help increase the value of your home if you decide to sell.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In New Canaan, that’s about 147 pounds per year on average.
Estimated Cost of Window Replacement in New Canaan
Let’s go over the cost of updating your windows and the types of services you may need for your home.
How Much Do New Windows Cost?
The national average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. But costs will differ considerably depending on the number of windows you need, the current condition of your home, the quality of your products and your location. A lot of window companies also offer door installations and other add-ons like baths, shutters, coating and more. Additional services will increase overall project costs.
Bear in mind that energy-efficient windows may cost more, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 a year when installing double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.
We recommend requesting free quotes from several window installation companies to find the one that works best for your budget.
What Services do Window Installers Offer?
There are generally two kinds of window installation services: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve other materials, including insulation and drip edges, which raise the overall cost of the project. It’s also worth noting that it’s not uncommon for homeowners to have to touch up the paint around the window after a full-frame installation. Pocket installations are on the simpler end and won’t cost as much because they entail simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may need a full-frame installation instead.
Your window installation company can advise you on the best type for your project. In New Canaan, the choice will mostly depend on the efficiency of your home and how old your existing frames are.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in New Canaan
EcoWatch is different from most reviewers since we’re examining these companies through a sustainability lens. Along with energy efficiency, we assessed several window installers in New Canaan and assigned rankings based on the following methodology:
Service Area
This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve New Canaan so you can find a quality window installation company near you.
Work Quality
When installing 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 get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don’t have positive things to say about their service from a certain installer, you won’t see it 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 scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed previously, windows are a substantial investment, so you’ll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of New Canaan’s climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of New Canaan window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
New Canaan, CT Window Replacement FAQs
How much should a window install cost?
The typical cost to install one window can range between $450 and $650. There are a variety of factors that affect how much it costs, including local labor costs, the materials used in designing the windows, how energy-efficient the windows are, styles and sizes of windows, the number of windows and your property’s location.
What kind of window is the most energy-efficient?
A window’s energy efficiency is affected by a number of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are typically the most energy-efficient since they are certified by the U.S. Department of Energy.
What services do window installation companies provide?
Window installers will do the entire process — from replacing old windows with new ones to cleaning up after the installation. Additionally, many companies offer window manufacturing, customization and repairs.
Should I replace all my windows at once?
If your windows are more than 20 years old, you probably need to replace all of them. At that point, they are often less efficient, draftier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less stress.