20 Best Window Companies in Greenwich, CT (2024 Reviews)
If you’re looking to get new windows, our list of the best window installation companies can help.
We analyzed all the top-rated window companies in Greenwich and selected the best 20 based on:
- Customer reviews
- Window installation expertise
- Popularity with home-owners like you
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Updated February 01, 2024
Why you can trust EcoWatch
A review of the best window installation companies in Greenwich may not seem like the most interesting article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. The Department of Energy estimates that heat gained or lost through outdated or drafty windows could make up close to 30% of heating and cooling usage. In Greenwich, where the energy bills are an average of $38 per month, that’s almost $$136 per year wasted.
Luckily, saving you money with more efficient windows also helps our goals of conserving energy and the resources it takes to generate it.
Unlike other review sites, EcoWatch ranks window replacement companies on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Greenwich
The EcoWatch Reviews team assessed several window installation companies across Greenwich to narrow our list down to the best ones. The providers in this article scored best in our categories, which include energy-efficient offerings, price, customer service, availability and more.
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 provides the best availability in Greenwich. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years.
You may want to consider opting for Andersen 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.
Energy Efficiency of Renewal by Andersen WindowsA 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 be sure to mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Greenwich?Andersen does not detail 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. For more detailed information on pricing, you can ask for a quote from the company.
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 provides windows expertise in Greenwich. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for about 27 years.
You may want to consider opting for Window World if you're looking for 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 WindowsIts 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 be sure to mention that you want Energy Star windows when inquiring.
How much does Window World cost in Greenwich?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on pricing, you can ask for a 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 provides the best residential windows in Greenwich. 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 installation business for about 16 years.
You may want to consider opting for Window Nation 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.
Energy Efficiency of Window Nation WindowsEach 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. Not all of Window Nation’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Window Nation cost in Greenwich?Window Nation does not detail 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. For more detailed information on pricing, you can ask for a 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 provides the best window installation for businesses in Greenwich. 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 installation business for about 23 years.
You may want to consider opting for Aeroseal if you're looking for a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe 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. Not all of Aeroseal’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Greenwich?Aeroseal does not detail prices on its website, but it provides high-quality windows at a competitive price point. For more detailed information on pricing, you can ask for a quote from the company.
We aim to be unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not affect our reviews.
More Window Companies in Greenwich
Renewal by Andersen
Stamford, CT- Educational Website
- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Sliding Glass Doors
- Storm Doors
- Skylights
- Bay Windows
- Andersen
- Glass Doors
- Window Install & Replacement
- Commercial Windows
Window World Westchester
Tuckahoe, NY- Good Customer Service
- Free assessment
- Price Transparency
- Educational Website
Services Offered
- Bay Windows
- Double-Hung
- Window Install & Replacement
- Sliding Glass Doors
MK Window Treatments
Greenwich, CT- Free assessment
- Good Customer Service
Services Offered
- Aluminum Frames
- Window Install & Replacement
- Window Repair
Greenwich Windows Replacement
Greenwich, CT- Free assessment
- Educational Website
- Price Transparency
- Good Customer Service
Services Offered
- Bay Windows
- Window Install & Replacement
Westchester Window
Thornwood, NY- Price Transparency
- Good Customer Service
- Free assessment
- Educational Website
Services Offered
- Window Repair
- Wood Frames
- Aluminum Frames
- Window Install & Replacement
- Energy-Efficient Options
Windows By Toll
Stamford, CT- Price Transparency
- Free assessment
- Good Customer Service
- Educational Website
Services Offered
- Double-Hung
- Bay Windows
- Window Install & Replacement
- Window Repair
- Andersen
- Dormer Windows
- Glass Showers
- Marvin
American Windows Plus Inc
White Plains, NY- Good Customer Service
- Educational Website
- Free assessment
Services Offered
- Wood Frames
- Vinyl Frames
- Window Install & Replacement
- Fiberglass Frames
- Pella
- Energy-Efficient Options
- Window Repair
- Glass Doors
- Sliding Glass Doors
- Marvin
- Commercial Windows
- Andersen
- Aluminum Frames
Pella Windows & Doors of Norwalk
Norwalk, CT- Educational Website
- Good Customer Service
- Price Transparency
- Free assessment
Services Offered
- Double-Hung
- Commercial Windows
- Glass Doors
- Window Repair
- Pella
- Sliding Glass Doors
- Window Install & Replacement
- Bay Windows
- Storm Doors
- Fiberglass Frames
Artan Window Works | Window Repair
Glen Head, NY- Price Transparency
- Free assessment
- Good Customer Service
- Educational Website
Services Offered
- Aluminum Frames
- Screen Repair
- Window Install & Replacement
- Wood Frames
- Window Repair
Authentic Window Design
Yonkers, NY- Price Transparency
- Good Customer Service
- Free assessment
Services Offered
- Window Install & Replacement
- Marvin
Sears Window Replacement
New Rochelle, NY- Educational Website
- Free assessment
- Price Transparency
- Timely Service
- Good Customer Service
Services Offered
- Sliding Glass Doors
- Energy-Efficient Options
- Bay Windows
- Alside
- Window Repair
- Vinyl Frames
- Storm Windows
- Window Install & Replacement
- Double-Hung
M & R Windows
Bronx, NY- Timely Service
- Price Transparency
Services Offered
- Window Repair
- Window Install & Replacement
First Choice Windows & Remodeling
Greenwich, CT- Price Transparency
- Free assessment
- Educational Website
- Good Customer Service
Services Offered
- Marvin
- Window Install & Replacement
- Pella
Aesthetic Renovations
Bedford, NY- Good Customer Service
Services Offered
- Window Repair
- Window Install & Replacement
Unified Home Remodeling
Scarsdale, NY- Timely Service
- Free assessment
- Price Transparency
- Educational Website
- Good Customer Service
Services Offered
- Dormer Windows
- Storm Doors
- Pella
- Window Install & Replacement
- Window Repair
- Andersen
Nelson Glass & Mirror
Port Chester, NY- Price Transparency
- Free assessment
- Good Customer Service
Services Offered
- Tempered Glass
- Mirrors
- Window Repair
- Aluminum Frames
- Storm Windows
- Commercial Windows
- Screen Repair
- Window Install & Replacement
- Glass Showers
Connecticut Glass & Mirror
Stamford, CT- Free assessment
- Educational Website
- Price Transparency
- Good Customer Service
Services Offered
- Commercial Windows
- Sliding Glass Doors
- Skylights
- Mirrors
- Window Install & Replacement
- Glass Showers
Croton Home Center
Ossining, NY- Good Customer Service
- Price Transparency
- Educational Website
Services Offered
- Commercial Windows
- Window Install & Replacement
- Skylights
- Aluminum Frames
Wiser Home Remodeling
New Canaan, CT- Price Transparency
Services Offered
- Andersen
- Window Install & Replacement
- Marvin
Window King LLC
Bronx, NY- Good Customer Service
- Free assessment
- Price Transparency
- Educational Website
- Timely Service
Services Offered
- Aluminum Frames
- Vinyl Frames
- Sliding Glass Doors
- OKNA
- Window Install & Replacement
- Commercial Windows
Calculate how much you can expect to pay for window installation and replacement in Greenwich, 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 Greenwich Saves You Money
Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to think about making the switch:
- Protect your investment: When you have an older home, your windows could also be outdated or leaky. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
- Save money on energy bills: Since energy-efficient windows decrease the amount of energy used to heat or cool your home, they can help you save about $441 annually on your energy bills in Greenwich.
- Reduce your carbon footprint: In Greenwich, you can lower your indirect greenhouse gas emissions by about 147 pounds per year when you switch to energy-efficient windows.
Estimated Cost of Window Replacement in Greenwich
Windows come in different shapes, purposes and styles, so costs and services will differ greatly based on several factors. Below, we describe the average cost and services that you’ll find from window replacement companies.
How Much Do New Windows Cost?
Generally, homeowners in Greenwich can anticipate that most replacement window installations will range from $250 to $1,200, with the most common installations sitting at around $600. This is due to the fact that the cost of window installations are based on a variety of factors specific to your home, like the size, material and number of windows you need to replace, as well as the location of your property.
It’s important to remember that windows with the best efficiency may cost more initially but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save Greenwich homeowners $441+ a year when replacing single-pane windows.
Requesting free quotes from several providers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
Generally, there are two types of window replacement services companies offer: full-frame and pocket installations.
A full-frame installation replaces the complete window, including the windowsill, frame, trim and the window panes. Because this kind of installation requires more time, it will be more expensive than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and will be less expensive, but you can’t do this type of installment if you have any pre-existing rot or water damage.
Your window replacement company should be able to help you understand what’s best for your needs. In Greenwich, the decision will mostly depend on how old your home is and if there’s any damage. Wood can decay if it’s not properly maintained over the years, so it’s a good idea to have a professional evaluate your frames and window sills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Greenwich
EcoWatch reviews differ from other reviews, as we evaluate these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in Greenwich and ranked them using the following methodology:
Service Area
Since this is a guide for Greenwich, we gave more points to companies that serve the city. There are other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Greenwich.
Work Quality
We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each company featured in our guide to make sure its technicians are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the most consistent customer satisfaction. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across most other categories, including quality of installation, professionalism, warranty, cost, quality of parts and more.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Greenwich’s climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of Greenwich window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Greenwich, CT Window Replacement FAQs
What is the typical cost to replace windows in a home?
The average cost to replace one window can range between $450 and $650. There are a variety of factors that affect how much it costs, which include your property’s location, styles and sizes of windows, the number of windows, how energy-efficient the windows are, the materials used in designing the windows and local labor costs.
What are the types of windows?
There are various types of windows you can get for your house, including picture windows, transom windows, casement windows, slider windows, bay windows, awning windows and double-hung and single-hung windows.
What services do window replacement companies provide?
Window installation professionals travel to your home to remove your old windows and replace them with new ones. Some companies install products sold by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is finished.
What time of year should I replace my windows?
While you can install windows any time of year, warmer weather is often better for replacing windows. In addition, it shouldn’t be raining, since rain can make the installation more difficult.
How often do you need to replace your windows?
Windows have a typical 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.