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TRUSTED BY EAST ISLIP, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon185
    Verified window services reviews

Find Window pros in East Islip

VELUX America

New on AngiNew on Angi
Approved Pro

VELUX America

New on AngiNew on Angi
Approved Pro
538 local quotes requested

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.


"Fast good price clean"

Jason H on September 2024

Tri-State is the manufacturer and installer of premium quality vinyl windows and patio doors. We do the entire job ourselves, no subcontractor or middleman! Tri-State builds them, installs them and we guarantee them.

"Fast good price clean"

Jason H on September 2024


Avatar for Thermo Seal Windows Siding & Roofing

Thermo Seal Windows Siding & Roofing

4.97(
106
)
Approved Pro

Thermo Seal Windows Siding & Roofing

4.97(
106
)
Approved Pro
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
21 local quotes requested

With more than 40 years of combined experience, Thermo-Seal Windows & Siding is the company to choose for superior custom made windows, patio doors, entry doors, storm doors, roofs, and vinyl, composite & wood siding. We are GAF Master Elite certified, which only 3% of the roofers in North America have this certification. We pride ourselves in superior customer service and satisfaction, while offering a no obligation in-home free estimate. We DO NOT do window/siding REPAIR work. Whether you are looking for an eight foot sliding glass door, gutters, roofing, double hungs or an eleven foot bow window, Thermo Seal has the craftsmanship and the custom built products for you. We have 3 locations: Headquarters: 411 Theodore Fremd Avenue Rye, NY 10580-1410, Showroom at: 456 Sunrise Highway, Rockville Center, NY 11570 Melville Location: 68 South Service Road Melville, N.Y. 11747 *Financing Available: 24 Months No Interest* *Licensing Information* Westchester License #: WC18925-H07 Connecticut License #: HIC616176 Yonkers License #: 4352 New Jersey License #: 13HV03970200 Suffolk County License #: 43947H Southampton License #: L002290 Nassau License #: H08105300 NYC DCA #: 1310460 Rockland County#: H-11137-07-38-00

"Awesome job by Aaron and his team of Jada, Adrien and Silvio! Aaron was great to deal with and delivered in a timely and professional manner. With the current heat wave, we can already feel the difference in indoor comfort and the windows look great inside and out. We highly recommend Aaron and Thermoseal for your window installation!!"

Leigh D on August 2022

With more than 40 years of combined experience, Thermo-Seal Windows & Siding is the company to choose for superior custom made windows, patio doors, entry doors, storm doors, roofs, and vinyl, composite & wood siding. We are GAF Master Elite certified, which only 3% of the roofers in North America have this certification. We pride ourselves in superior customer service and satisfaction, while offering a no obligation in-home free estimate. We DO NOT do window/siding REPAIR work. Whether you are looking for an eight foot sliding glass door, gutters, roofing, double hungs or an eleven foot bow window, Thermo Seal has the craftsmanship and the custom built products for you. We have 3 locations: Headquarters: 411 Theodore Fremd Avenue Rye, NY 10580-1410, Showroom at: 456 Sunrise Highway, Rockville Center, NY 11570 Melville Location: 68 South Service Road Melville, N.Y. 11747 *Financing Available: 24 Months No Interest* *Licensing Information* Westchester License #: WC18925-H07 Connecticut License #: HIC616176 Yonkers License #: 4352 New Jersey License #: 13HV03970200 Suffolk County License #: 43947H Southampton License #: L002290 Nassau License #: H08105300 NYC DCA #: 1310460 Rockland County#: H-11137-07-38-00

"Awesome job by Aaron and his team of Jada, Adrien and Silvio! Aaron was great to deal with and delivered in a timely and professional manner. With the current heat wave, we can already feel the difference in indoor comfort and the windows look great inside and out. We highly recommend Aaron and Thermoseal for your window installation!!"

Leigh D on August 2022


"Did not start yet will be in November "

Gisele S on October 2025

Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation

"Did not start yet will be in November "

Gisele S on October 2025


New York Avenue Originals

New on AngiNew on Angi
Approved Pro

New York Avenue Originals

New on AngiNew on Angi
Approved Pro
7 years of experience
Free onsite estimate

Welcome to New York Avenue Originals! With over 7 years of experience, we take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail, while making customer satisfaction our top priority. Call us today to learn more about how we can help

Welcome to New York Avenue Originals! With over 7 years of experience, we take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail, while making customer satisfaction our top priority. Call us today to learn more about how we can help


Avatar for King Quality Roofing and Siding

King Quality Roofing and Siding

4.67(
15
)
Approved Pro

King Quality Roofing and Siding

4.67(
15
)
Approved Pro
Customers say: Quick response
189 local quotes requested
37 years of experience

King Quality Roofing and Siding is proud to be a locally owned and operated business that has been serving the community since 1988! With years of experience and unmatched expertise, we can help with any and all of your roofing and siding needs. Since opening our doors we have built our business on providing customers with the highest quality products and craftsmanship, at a fair price. You can count on our team to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work completed. Let us show you the King Quality difference, get in touch today!

"I’m happy with the service and results "

Nikki B on November 2025

King Quality Roofing and Siding is proud to be a locally owned and operated business that has been serving the community since 1988! With years of experience and unmatched expertise, we can help with any and all of your roofing and siding needs. Since opening our doors we have built our business on providing customers with the highest quality products and craftsmanship, at a fair price. You can count on our team to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work completed. Let us show you the King Quality difference, get in touch today!

"I’m happy with the service and results "

Nikki B on November 2025


Avatar for Carlos Home Improvement

Carlos Home Improvement

New on AngiNew on Angi
Approved Pro

Carlos Home Improvement

New on AngiNew on Angi
Approved Pro
15 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


CAC Carpentry Art & Craft

New on AngiNew on Angi
Approved Pro

CAC Carpentry Art & Craft

New on AngiNew on Angi
Approved Pro
30 years of experience
Free onsite estimate

CAC carpentry Art & Craft is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 25 years of experience serving Greenwich, CT and surrounding areas. Call today and let us put our experience to work for you!

CAC carpentry Art & Craft is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 25 years of experience serving Greenwich, CT and surrounding areas. Call today and let us put our experience to work for you!


Aligned Home Improvement LLC

5.00(
6
)
Approved Pro

Aligned Home Improvement LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Licensed & Insured, Veteran owned. I stand by honesty and integrity! I always make sure my customers are 100% satisfied with the work. Communication is key to success and I'll always make myself available for any questions or concerns. I love what I do and take pride in my work. I started my own company slowly building clients and business relationships. I look forward to meeting new people and providing the Best home Improvements possible : )

"Dan was friendly, knowledgable, and professoliomal. He and his team recommended different options to my project which was helpful. He was ontime arriving at my home and cleaned up the work area when completed. I would use his services again and recomemend him to anyone needing contractor services."

Tom P on March 2024

Licensed & Insured, Veteran owned. I stand by honesty and integrity! I always make sure my customers are 100% satisfied with the work. Communication is key to success and I'll always make myself available for any questions or concerns. I love what I do and take pride in my work. I started my own company slowly building clients and business relationships. I look forward to meeting new people and providing the Best home Improvements possible : )

"Dan was friendly, knowledgable, and professoliomal. He and his team recommended different options to my project which was helpful. He was ontime arriving at my home and cleaned up the work area when completed. I would use his services again and recomemend him to anyone needing contractor services."

Tom P on March 2024


Avatar for FG Window Repair Service

FG Window Repair Service

4.76(
74
)
Approved Pro

FG Window Repair Service

4.76(
74
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
25 years of experience

At FG Window Repair Service, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"This company came to replace the glass in a double pane bay window because the gas seal round it leaked and was unable to see through it. The glass was replaced, paid $600 for the new glass. A month or so after the installation there was condensation build up inside the double glass. Callled the company, and was told they would correct the problem, if not able to they would refund our $600. Needless to say we had gotten every excuse and then weâ re told they donâ t remember doing a job at my home !! Never got a $$ back either.. But I would like to know if they were never hear at all, then why is there a picture of the front of my home on their website as soon as you download it, and the same picture on their photo gallery of work they have done?? I have filed with the Suffolk County Dept of Consumer Affairs !! FG Window Repair had and has avoided out calls to them !"

Trisha R on February 2023

At FG Window Repair Service, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"This company came to replace the glass in a double pane bay window because the gas seal round it leaked and was unable to see through it. The glass was replaced, paid $600 for the new glass. A month or so after the installation there was condensation build up inside the double glass. Callled the company, and was told they would correct the problem, if not able to they would refund our $600. Needless to say we had gotten every excuse and then weâ re told they donâ t remember doing a job at my home !! Never got a $$ back either.. But I would like to know if they were never hear at all, then why is there a picture of the front of my home on their website as soon as you download it, and the same picture on their photo gallery of work they have done?? I have filed with the Suffolk County Dept of Consumer Affairs !! FG Window Repair had and has avoided out calls to them !"

Trisha R on February 2023

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Windows questions, answered by experts

Installing bifold windows can take anywhere from three or four hours to several days. Smaller bifold windows that open vertically and fit inside your existing wall opening should take just a few hours and no longer than a day. Larger bifold windows, especially wider ones, may require structural work before your professional can install the window. The installation could take two to three days, depending on how much work your wall needs.

Bay and bow windows can increase the value of a home. These window styles not only enhance a home's aesthetic appeal by adding architectural interest and increasing natural light but also create additional interior space for seating or decorative purposes. The added functionality and visual appeal can make a home more attractive to potential buyers, potentially leading to a higher resale value. However, the impact on home value depends on various factors, including the overall condition of the home, local real estate market trends, and the quality of the window installation.

If you decide to forgo your old windows and upgrade them to modern day technology, there may be some people interested in the old windows. You can try selling them on an online marketplace for around $50 to $100 each (so long as the window wasn’t damaged during the removal). This can also help off set the overall price to replace them.

Your new windows may let in more noise than your old windows because they are not the right size or they were installed improperly. Improper installation, or choosing windows that are too small for the opening, can create gaps around the window that let in noise.

Another factor could be the STC and OITC ratings. If your new windows have lower ratings than your old windows, this means they have lower performance when it comes to dampening noise from the outdoors.

According to the U.S. Department of Energy, low-E windows can reduce energy loss by 30% to 50%. But the actual effect of low-E windows in your home will depend on many factors, like climate, number of windows, window treatments, and more. In terms of aesthetics, you may or may not notice a difference in how your windows look or how much natural light shines through. But overall, low-E windows look very similar to traditional windows.

The East Islip, NY homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.