20 Best Window Companies in Stony Brook, NY (2023 Reviews)
If you're thinking about getting new windows, our list of the best window installation companies can help.
We analyzed all the top-rated window companies in Stony Brook and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping Stony Brook homeowners make their homes more eco-friendly. Drafty, leaky windows could lead to spending more on electric bills during the winter or summer months.
Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.
As windows have such a large impact on your home, picking the best company for you is a big decision to make. That's why the EcoWatch team has put together this list of the top window installation companies, so you can more easily make an informed decision.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Stony Brook
The EcoWatch team researched dozens of installers in Stony Brook to find the top window replacement companies for our readers. The companies mentioned in this article scored the best in our review categories, such as energy-efficient offerings, price, customer service, availability, local expertise and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Stony Brook. This company has 27 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Stony Brook.
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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want 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 Stony Brook?Even though pricing information is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about the cost.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation industry for around 27 years. Its reputation is backed by a considerable amount of positive reviews from customers online.
You may want to consider choosing 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 WindowsRenewal by Andersen is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Stony Brook?Even though prices are 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. The best way to get more accurate information is to request a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has 20 years of experience in the windows business, and it has become one of the best companies in Stony Brook. Many positive reviews from customers online back the company's reputation.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the right company for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so be sure to ask your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in Stony Brook?Universal does not list prices on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. You can request a free quote on its website for more information about pricing.
We've recommended companies with shining reputations, but note that these are national companies, so your service may differ depending on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for each company we reviewed.
More Window Companies in Stony Brook
Renewal by Andersen of Long Island
Farmingdale, NY-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Glass Showers
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Double-Hung
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Residential Windows
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Commercial Windows
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Stained Glass
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Window Replacement
Window World of Long Island
Farmingdale, NY-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
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Timely Service
Services Offered
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Double-Hung
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Residential Windows
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Custom Window Designs
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Window Replacement
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Bay Windows
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Glass Showers
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Commercial Windows
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Stained Glass
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Fast Delivery
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Tempered Glass
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Sliding Glass
Window Nation
Wallingford, CT-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
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Custom Window Designs
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Window Replacement
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Double-Hung
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Stained Glass
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Bay Windows
Glass Doctor
Ronkonkoma, NY-
Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Window Replacement
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Glass Showers
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Window Repair
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Fast Delivery
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Residential Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
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Full-Service Installations
EcoView Windows of Long Island
Islandia, NY-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Double-Hung
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Window Replacement
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Sliding Glass
All Pro Remodeling Corp
Mt Sinai, NY-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Double-Hung
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Glass Showers
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Window Replacement
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Energy-Efficient Options
Smithtown Window Replacement and Doors
Smithtown, NY-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Glass Showers
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Window Replacement
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Commercial Windows
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Energy-Efficient Options
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Bay Windows
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Double-Hung
AT Home Remodeling Inc Holbrook N.Y. 11741
Holbrook, NY-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Aluminum Window Frames
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Custom Window Designs
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Window Replacement
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Fast Delivery
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Double-Hung
Flawless Glass & Mirror LLC
Holbrook, NY-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Custom Window Designs
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Window Repair
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Glass Showers
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Residential Windows
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Window Replacement
Sunview Enterprise Inc
Setauket- East Setauket, NY-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Energy-Efficient Options
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Bay Windows
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Window Replacement
Coram Glass & Mirror Inc
Ronkonkoma, NY-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Glass Showers
Home Services at The Home Depot
Commack, NY-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Stained Glass
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Double-Hung
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Residential Windows
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Window Replacement
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Commercial Windows
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Fast Delivery
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Glass Showers
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Custom Window Designs
Four Seasons Sunrooms
Holbrook, NY-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
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Residential Windows
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Commercial Windows
Long Island Window & Door Ltd
Commack, NY-
Price Transparency
Services Offered
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Window Replacement
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Window Repair
Patchogue Window Installation
Brookhaven, NY-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Commercial Windows
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Residential Windows
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Energy-Efficient Options
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Window Replacement
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Bay Windows
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Sliding Glass
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Stained Glass
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Fast Delivery
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Custom Window Designs
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Double-Hung
New York Glass And StoreFront
Huntington Station, NY-
Price Transparency
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Free assessment
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Timely Service
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Window Repair
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Residential Windows
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Double-Hung
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Glass Showers
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Custom Window Designs
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Commercial Windows
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Tempered Glass
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Sliding Glass
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Aluminum Window Frames
Home Comfort Practice, Inc.
Stratford, CT-
Timely Service
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Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Glass Showers
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Energy-Efficient Options
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Residential Windows
Ener-G Tech, Inc.
Stratford, CT-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Energy-Efficient Options
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Commercial Windows
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Residential Windows
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Window Replacement
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Glass Showers
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Custom Window Designs
Standard Glass
Bridgeport, CT-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Commercial Windows
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Double-Hung
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Window Replacement
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Custom Window Designs
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Residential Windows
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Glass Showers
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Window Repair
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Fast Delivery
Pro Quality Home Improvements Inc.
West Babylon, NY-
Educational Website
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Timely Service
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Energy-Efficient Options
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Window Repair
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Window Replacement
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Bay Windows
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Residential Windows
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Custom Window Designs
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Commercial Windows
Calculate how much you can expect to pay for window installation and replacement in Stony Brook, NY 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 Stony Brook 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:
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help increase the value of your property if you decide to sell.
- 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 electricity bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, the switch can help you save about $215 annually on your energy bills in Stony Brook.
- Better temperature control in your home: When you reside in a place like Stony Brook where the summers can get quite hot, you often have to depend on your air conditioner to keep your house cool. Energy-efficient windows can reduce how much cool air is lost through your windows when cooling your home.
Estimated Cost of Window Replacement in Stony Brook
Let's take a look at the cost of installing new windows and the types of services offered by installers.
How Much Do New Windows Cost?
Generally, homeowners in Stony Brook can expect that most replacement window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. How much it will cost depends on several factors, like type, material, the location of your home, size, number of windows and more.
With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Stony Brook homeowners $215+ each year after replacing single-pane windows.
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?
The first question to ask yourself when getting new windows is: Should you get a full-frame installation or a pocket installation?
A full-frame installation is a replacement of the total window. It involves removing the old window, the sill, and the exterior and interior trim. It can also involve additional materials, such as insulation and drip edges, which increase the overall cost of the project. Also worth noting: 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 carry as large a bill, as they entail merely 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 replacement company should be able to help you choose what's best for your needs. In Stony Brook, the decision will mostly be based on the age of your windows and if there's any damage. Wood can decay if it's not maintained properly over the years, so it's good to have a professional check your frames and window sills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Stony Brook
EcoWatch differs from other reviewers since we look at these companies through a sustainability lens. We've assessed the best window installers in Stony Brook mostly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can lower energy 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 Stony Brook, 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 Stony Brook.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each company in our guide to make sure its technicians are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If most customers don't have positive feedback about their service from a certain company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window installers are not going to provide the most quality service. Still, we want to ensure we're highlighting companies that provide a variety of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. That's why window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Stony Brook's climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Stony Brook window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Stony Brook, NY Window Replacement FAQs
What is the typical cost to replace windows?
The national average cost of installing one window is about $600 but can range between $200 and $1,200, based on a few different factors. The price is often influenced by the size of the window, the type and material of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
Which kind of window should I get?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.
Can you install your own windows?
If you're handy and know how to replace a window, you may be able to install your own windows. But if you don't have the time or skills, we recommend getting a professional to do it for you.
When is it time to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may need to be replaced.