20 Best Window Companies in Old Saybrook, CT (2025 Reviews)
When it’s time to upgrade your windows, our reviews of the best window installation companies can help you find the right provider for you.
We analyzed all the top-rated window companies in Old Saybrook 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
Although renewable energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home’s efficiency can also have a large impact on home energy conservation. Potential leaks or drafts can cut your home’s energy efficiency by up to 30%, according to the Department of Energy. In Old Saybrook, that’s almost $403 a year that you could save on your power bills after making the switch.
Installing upgraded, efficient windows on your home can help you save money each month on your power bills — and you can help the environment as well.
Efficient windows are especially important in Old Saybrook, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $403 per year.
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 Old Saybrook
The EcoWatch team examined dozens of installers in Old Saybrook to find the best window installation companies for our readers. The companies we’ve mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

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 is the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been operating since 1995 and currently services 200 locations nationwide. The provider has hundreds of glowing reviews from customers on online review websites.
It has established itself as 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 WindowsWindow World 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. 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 Old Saybrook?Though pricing is not available on Window World’s website, it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to know for sure.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been operating since 1995 and currently services nearly every state except Mississippi and West Virginia. The provider has hundreds of glowing reviews from customers on online review websites.
It has established itself as 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 WindowsRenewal by Andersen 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. 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 Old Saybrook?Though pricing is not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to know for sure.

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 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 been operating since 1999 and currently services 13 states and Washington D.C. The provider has hundreds of glowing reviews from customers on online review websites.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows 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. 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 Old Saybrook?Though pricing is not available on Aeroseal’s website, it provides high-quality windows at a competitive price point. Getting a free quote on its website is the best way to know for sure.

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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. The provider has hundreds of glowing reviews from customers on online review websites.
It has established itself as 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 WindowsWindow 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 Old Saybrook?Though pricing is not available on Window Nation’s website, 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. Getting a free quote on its website is the best way to know for sure.
We try to be unbiased and transparent by including pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Old Saybrook
Renewal by Andersen - Branford
Branford, CTFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Bay Windows
Skylights
Double-Hung
Window Replacement/Installation
Glass Doors
Power Home Remodeling
Trumbull, CTFree assessment
Good Customer Service
Price Transparency
Timely Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Window Nation
Wallingford, CTFree assessment
Educational Website
Price Transparency
Services Offered
Custom Window Designs
Bay Windows
Glass Doors
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Calvary Remodeling
Mystic, CTPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Paramount Gallery
West Hartford, CTPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Custom Window Designs
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Big Dawg Home Improvements
South Windsor, CTTimely Service
Price Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Window Repair
Energy-Efficient Options
Skylights
Bert Falsetti's Home Improvement LLC
Shelton, CTServices Offered
Double-Hung
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Window Depot USA of Southern CT
Trumbull, CTGood Customer Service
Free assessment
Educational Website
Timely Service
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Triple Pane Glass
Double-Hung
Bay Windows
Vinyl Frames
Glass Doors
ZN Construction
Canton, CTPrice Transparency
Free assessment
Educational Website
Timely Service
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Budget Blinds of Enfield and Hartford
Somers, CTGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Custom Window Designs
Flawless Glass & Mirror LLC
Holbrook, NYGood Customer Service
Owner-operated small business
Customized glass options
Free assessment
Price Transparency
Educational Website
Free in-home consultation
Services Offered
Mirrors
Glass Showers
Window Replacement/Installation
United Home Experts
Norwalk, CTPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Fiberglass Frames
Couto Construction
Warwick, RITimely Service
Price Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Window Repair
Window Replacement/Installation
Energy-Efficient Options
Kubala Home Improvement
Ludlow, MAPrice Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Bencar Building Systems LLC
Wallingford, CTGood Customer Service
Services Offered
Window Replacement/Installation
Advanced Window Systems LLC
Cromwell, CTGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Glass Doors
Glass Showers
Double-Hung
Window Replacement/Installation
Bay Windows
Nu-Face Home Improvements
Berlin, CTEducational Website
Free assessment
Price Transparency
Timely Service
Good Customer Service
Services Offered
Glass Doors
Glass Showers
Double-Hung
Energy-Efficient Options
Window Replacement/Installation
Smithtown Window Replacement and Doors
Smithtown, NYFree assessment
Weekend availability
Energy-efficient windows and doors
Good Customer Service
Price Transparency
Family-owned and operated
Educational Website
Services Offered
Vinyl Frames
Glass Showers
Triple Pane Glass
Window Repair
Bay Windows
Wood Frames
Fiberglass Frames
Window Replacement/Installation
Storm/Impact Windows
Double-Hung
Glass Doors
Custom Window Designs
Metal Frames
Tempered Glass
Energy-Efficient Options
CARRIER ROOFING SIDING & WINDOWS
Webster, MAEducational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Mr. Handyman of Huntington and Smithtown
East Northport, NYTimely Service
Free assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Bay Windows
Window Replacement/Installation
Window Repair
Calculate how much you can expect to pay for window installation and replacement in Old Saybrook, 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 Old Saybrook Saves You Money
There are quite a few perks of switching to energy-efficient windows. A few reasons you may want to consider making the change include the following:
- Decrease your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by 147 pounds per year on average.
- 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 on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Upgrading to energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.
- Protect your investment: When you have an older home, your windows could also be outdated or damaged. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
Estimated Cost of Window Replacement in Old Saybrook
Each window installer provides varying services and has different prices based on a few factors.
How Much Do New Windows Cost?
The national average cost to install one window is about $600 but can range from $200 to $1,200. This is because the cost of window installations are based on several factors specific to your home, like the size, material and number of windows you need to replace, as well as where your property is located.
It’s also worth noting that energy-efficient windows will cost more upfront, but Energy Star predicts that upgrading the windows on your Old Saybrook home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you’ll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Requesting free quotes from several companies is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
When it comes to window installations, there are typically two types that your provider will offer: full-frame and pocket installations.
Full-frame installations involve replacing the complete window, including the frame, trim and sill. Full-frame installations are necessary when you want a new style or your window has significant rot or deterioration. Because these installations are more involved, they will raise the overall cost. Pocket installations are simpler and won’t carry as large a bill, as they entail merely replacing the window within its existing frame. But if the frame has any damage, you may have to get a full-frame installation instead.
Your window installation company will be able to help you choose what’s best for your needs. In Old Saybrook, the decision will mostly depend on how old your home is and if there’s any moisture damage. Wood can decay if not maintained properly 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
- 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 Old Saybrook
In our search to make your home improvements easier and more eco-friendly in Old Saybrook, the EcoWatch team examined many companies before landing on these. We’ve reviewed the top window replacement companies in Old Saybrook primarily based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows can lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Because this is a guide for Old Saybrook, we only included companies that provide services to the city. There are certainly reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Old Saybrook.
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 opt for. 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
Another self-explanatory yet super important review factor is customer feedback. If most customers don’t have nice 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 want to keep costs as low as possible. When analyzing providers’ prices, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Old Saybrook’s climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of Old Saybrook window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Old Saybrook, CT Window Replacement FAQs
What is the average cost to install new windows?
The average cost of installing a single window can range between $450 and $650. There are a variety of factors that influence the cost, including styles and sizes of windows, local labor costs, the number of windows, how energy-efficient the windows are, the materials used in designing the windows and your property’s location.
What are the most common kinds of replacement windows?
There are various kinds of windows you can get for your home, such as picture windows, double-hung and single-hung windows, transom windows, awning windows, bay windows, casement windows and slider windows.
Can I install 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 ensure that the job is done properly and that you won’t have to spend the time and effort to do it yourself.
How long does it generally take to install windows?
Because the average installation time of a window is 30 minutes, around 16 windows can be installed during a typical 8-hour work day.