22 Best Window Replacement Companies in Stony Brook, NY (Mar 2023)
Window Companies Near Me
If you're thinking about upgrading to new windows, our guide to the top window installation companies can help.
We analyzed all the top window installers in Stony Brook and selected the top 22 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Although eco-friendly energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house's efficiency can also have a considerable impact on home energy conservation. During the winter months, the last thing you want is your heat to leak out of your drafty windows.
Fortunately, helping you save energy with more efficient windows also aligns with our goals of reducing energy usage for the environment.
Unlike other sites, EcoWatch ranks window companies on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Award-winning company
- Manufactures products in-house
- More expensive than competition
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Manufactures products in-house
- Makes charitable contributions
- Some installations carried out by third-party contractors
Best Window Replacement Companies in Stony Brook
The EcoWatch team researched dozens of installers in Stony Brook to find the best window installation companies for our readers. The companies in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

Window World
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EnergyStar Partner
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Large serice area
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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. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the windows industry, and it has proved to be one of the best companies in Stony Brook. Its reputation is backed by all the positive reviews from customers online.
It 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 make sure you 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 Stony Brook?Although prices are not available on Window World's website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Member of US Green Building Council
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Award-winning company
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Manufactures products in-house
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More expensive than competition
Renewal by Andersen provides the best availability in Stony Brook. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement business. Hundreds of positive reviews on customer review websites back the provider's reputation.
It 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 caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Stony Brook?Prices aren't available on Andersen's 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 the cost, you can get a quote from the company.

Universal Windows Direct
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Lifetime warranty
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Manufactures products in-house
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Makes charitable contributions
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Some installations carried out by third-party contractors
Universal Windows Direct has the best warranty in Stony Brook. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window business for about 20 years.
It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThere are a wide range of window types that Universal Windows Direct offers, some of which are Energy Star products. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Stony Brook?Universal does not mention 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. The best way to get more accurate pricing information is to receive a free quote from the company.
We aim to stay unbiased and transparent by describing pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.
More Window Replacement Companies in Stony Brook
Sky Windows and Doors
Freeport, NY-
Free Quotes
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Price Transparency
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Timely Service
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Consistent Workmanship
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Renewal by Andersen of Long Island
Farmingdale, NY-
Excellent Customer Service
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Free Quotes
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Dependable Service
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No-Hassle Pricing
Services Offered
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Fast Delivery
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Custom Windows
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Renewal by Andersen - Branford
Branford, CT-
Reliable Appointment Windows
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Locally Recognized for Quality
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Dependable Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
TL Home Improvement LLC
Shelton, CT-
Reliable Service
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Timely Service
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Locally Recognized for Quality
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Renewal by Andersen
Stamford, CT-
Award-Winning
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Timely Service
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Consistent Workmanship
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Good Customer Service
Services Offered
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Custom Window Designs
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Pella Windows & Doors of Roslyn Heights
Roslyn Heights, NY-
No-Hassle Pricing
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Good Customer Service
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Helps Educate Customers
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Storefront Glass & Metal
Huntington Station, NY-
Helps Educate Customers
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Dependable Service
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No-fee Quotes
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Timely Service
Services Offered
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Architectural Glass
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Heavy Glass
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Mr. Handyman of Upper Fairfield County
Fairfield, CT-
Price Transparency
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No-fee Quotes
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Helps Educate Customers
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Award-Winning
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Business Windows
Giant Siding and Windows
White Plains, NY-
Educational Website
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Reliable Appointment Windows
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Good Customer Service
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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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Commercial Windows
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Double-Hung
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Sliding Glass
The Window People
Stamford, CT-
Free Quotes
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Good Customer Service
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No-Hassle Pricing
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Dependable Service
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Eastern Glass & Shower Door
Milford, CT-
Free Quotes
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No-Hassle Pricing
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Doors
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Full-Service Installations
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Custom Windows
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Tempered Glass
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Residential Windows
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Commercial Windows
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Window Depot Usa Of Lower NY
South Hempstead, NY-
Award-Winning
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Good Customer Service
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No-fee Quotes
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Reliable Appointment Windows
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
Sears Window Replacement
New Rochelle, NY-
Educational Website
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Price Transparency
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Arrives on Time
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Free Quotes
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Tri State Window Factory
Deer Park, NY-
Educational Website
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No-Hassle Pricing
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Arrives on Time
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Award-Winning
Services Offered
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Double-Hung
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Reliable Appointment Windows
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No-fee Quotes
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Good Customer Service
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Double-Hung
Tri State Window Factory
Seaford, NY-
Dependable Service
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No-fee Quotes
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Timely Service
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Double-Hung
Window World of Long Island
Farmingdale, NY-
Reliable Service
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Price Transparency
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Reliable Appointment Windows
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No-fee Quotes
Services Offered
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Fast Delivery
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Long Island Storefronts
Shirley, NY-
Award-Winning
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Excellent Customer Service
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Free Quotes
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Dependable Service
Services Offered
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
Lowe's Home Improvement
Riverhead, NY-
Excellent Customer Service
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Price Transparency
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Free Quotes
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Educational Website
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
American Windows Plus Inc
White Plains, NY-
Excellent Customer Service
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Dependable Service
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Free Quotes
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Window King of Connecticut
Stamford, CT-
No-Hassle Pricing
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Educational Website
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Excellent Customer Service
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Free Quotes
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Cascella And Sons Construction Corp.
Central Islip, NY-
Helps Educate Customers
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Reliable Appointment Windows
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Free Quotes
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Good Customer Service
Services Offered
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Custom Window Designs
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Business Windows
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Double-Hung
How Installing Energy-Efficient Windows in Stony Brook Saves You Money
There are several benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch are the following:
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can reduce your carbon footprint by about 12%, according to Energy Star.
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Save on power bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of residential energy use. Installing energy-efficient models can help decrease that number, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in Stony Brook
Windows come in all shapes and sizes, so costs and services will differ greatly. Here are the average costs and services that you'll find from the average window installation company.
How Much Do New Windows Cost?
The typical cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. Costs will vary considerably depending on the quality of your products, your location, the number of windows you need and the current condition of your home. A lot of window companies also offer replacement door installations and other add-ons like baths, coating, shutters and more. These extra services will increase overall project costs.
It's also worth noting that energy-efficient windows will almost always cost more upfront, but Energy Star estimates that upgrading the windows on your Stony Brook home translates to 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 installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are usually the most expensive, although it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
There are generally two kinds of window installation services: full-frame and pocket installations.
Full-frame installations require replacing the full window — the sill, frame, trim and all. These are typically done when you want a new style for your windows or when it has significant rot or deterioration. Full-frame installations are more comprehensive and will increase overall costs. Pocket installations are on the simpler end and won't carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you should opt for a full-frame installation instead.
If you're hiring a reputable window installation company, your company can recommend the best type for your project. In Stony Brook, the decision will mostly be based on the efficiency of your home and the condition of your existing frames.
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Award-winning company
- Manufactures products in-house
- More expensive than competition
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Manufactures products in-house
- Makes charitable contributions
- Some installations carried out by third-party contractors
How We Choose the Best Window Installers in Stony Brook
EcoWatch reviews differ from other reviews since we're examining these companies through a sustainability lens. We have evaluated the top window installation companies in Stony Brook primarily based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the best window installation company near you.
Work Quality
We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each company featured in our guide to make sure its contractors are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have positive things to say about their experience with a certain window installation company, 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 gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a good track record in the industry. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Stony Brook, NY Window Replacement FAQs
What is the average cost to install new windows?
The typical cost of installing a single window can range from $450 to $650. There are a variety of factors that influence how much it costs, which include the materials used in designing the windows, local labor costs, styles and sizes of windows, your property's location, the number of windows and how energy-efficient the windows are.
Which type of window is the best?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. If you want to be sure you'll have the most energy-efficient windows, look for models with the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.
What do window installers do?
Window installation companies cover the entire process — from replacing your old windows with brand new ones to cleaning up after the installation. In addition, a lot of companies offer window manufacturing, customization and repairs.
How long does window installation take?
Each window takes about 30 minutes to install based on the kind of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the house, so the temperature outside isn't necessarily a big factor. What's more important than the temperature is that the weather should be dry.