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TRUSTED BY SAG HARBOR, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon165
    Verified window services reviews

Find Window pros in Sag Harbor

Avatar for Tri-State Window Factory Corp

Tri-State Window Factory Corp

360 Marcus Blvd
4.79(
419
)
Approved Pro

Tri-State Window Factory Corp

360 Marcus Blvd
4.79(
419
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
478 local quotes requested

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

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


VELUX America

2173 HAWKINS ST STE H
New on AngiNew on Angi
Approved Pro

VELUX America

2173 HAWKINS ST STE H
New on AngiNew on Angi
Approved Pro
585 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.


Avatar for Thermo Seal Windows Siding & Roofing

Thermo Seal Windows Siding & Roofing

411 Theodore Fremd Ave
4.97(
114
)
Approved Pro

Thermo Seal Windows Siding & Roofing

411 Theodore Fremd Ave
4.97(
114
)
Approved Pro
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
13 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


Avatar for Hampton Bay Construction - Babylon Bay Construction

Hampton Bay Construction - Babylon Bay Construction

280 Central Ave
4.94(
98
)
Approved Pro

Hampton Bay Construction - Babylon Bay Construction

280 Central Ave
4.94(
98
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
72 local quotes requested

Owner owned & operated. Full service remodeling company specializing in medium to large projects. Serving Suffolk county and the Hamptons. High end building and remodeling firm. Expect excellent quality and customer service. Permit and Variance Specialists.

"We went over everything that was going to be done step by step both A.J. and Sam explained and guided us in the process. All came in at budget and in a timely manner. They were clean and reliable. I Will use them for my next project! ps. All of their recommendations for plumbing, electrical and painting were fantastic."

VINCENT S on March 2025

Owner owned & operated. Full service remodeling company specializing in medium to large projects. Serving Suffolk county and the Hamptons. High end building and remodeling firm. Expect excellent quality and customer service. Permit and Variance Specialists.

"We went over everything that was going to be done step by step both A.J. and Sam explained and guided us in the process. All came in at budget and in a timely manner. They were clean and reliable. I Will use them for my next project! ps. All of their recommendations for plumbing, electrical and painting were fantastic."

VINCENT S on March 2025


Avatar for Cocos Custom Building LLC

Cocos Custom Building LLC

66 Radburn Drive
4.75(
8
)
Approved Pro

Cocos Custom Building LLC

66 Radburn Drive
4.75(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
429 local quotes requested

Coco’s Custom Building LLC specializes in setting and finishing Modular Homes, fabricating and installing structural steel, and all phases of residential and commercial construction. This includes extensions, dormers, basements, siding, exterior trim and roofing. We have 25 years of experience. We take pride in giving our customers a professional quality finish on all of our projects for a reasonable price. We work extremely hard to ensure that our customers hard earned money doesn’t go to waste.

"Excellent. On time and on budget"

Brian D on January 2025

Coco’s Custom Building LLC specializes in setting and finishing Modular Homes, fabricating and installing structural steel, and all phases of residential and commercial construction. This includes extensions, dormers, basements, siding, exterior trim and roofing. We have 25 years of experience. We take pride in giving our customers a professional quality finish on all of our projects for a reasonable price. We work extremely hard to ensure that our customers hard earned money doesn’t go to waste.

"Excellent. On time and on budget"

Brian D on January 2025


"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"

JENNIFER S on August 2025

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

"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"

JENNIFER S on August 2025


Avatar for V.S.C.

V.S.C.

P.O. Box 902
5.00(
1
)
Approved Pro

V.S.C.

P.O. Box 902
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

VSC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"He did a very good job. Very nice guy."

Darcy M on January 2022

VSC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"He did a very good job. Very nice guy."

Darcy M on January 2022


KG Home Improvement

29 Rabbit Run
5.00(
1
)
Approved Pro

KG Home Improvement

29 Rabbit Run
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

Great work at great price! A fresh coat of paint or stain can bring new life to rooms, add curb appeal to homes and commercial buildings, and help protect your investment for years to come. We are happy to bid on all types of painting in the Riverhead area. We will meet with you, at your convenience, and provide you with a free, written, detailed estimate – no surprise charges added after the fact. Locally owned and operated, we're a small company with big capabilities, including interior painting, exterior painting, commercial painting, deck finishing, and interior design.

"They did a great job, and stayed on schedule. There bid was very competitive. Would hire again."

Charles S on April 2020

Great work at great price! A fresh coat of paint or stain can bring new life to rooms, add curb appeal to homes and commercial buildings, and help protect your investment for years to come. We are happy to bid on all types of painting in the Riverhead area. We will meet with you, at your convenience, and provide you with a free, written, detailed estimate – no surprise charges added after the fact. Locally owned and operated, we're a small company with big capabilities, including interior painting, exterior painting, commercial painting, deck finishing, and interior design.

"They did a great job, and stayed on schedule. There bid was very competitive. Would hire again."

Charles S on April 2020


Avatar for Long Island Egress Pros, Inc.

Long Island Egress Pros, Inc.

21A Edison Avenue
4.78(
62
)
Approved Pro

Long Island Egress Pros, Inc.

21A Edison Avenue
4.78(
62
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
30 local quotes requested

Welcome to Long Island Egress Pros, Inc.! We are the experts when it comes to residential renovations. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction in which we serve the client from the developmental stages of a project to final completion. By early involvement in the conceptual phase of a project, we can explore all design possibilities with the client to assist in obtaining the best balance of aesthetics and budget covering all aspects. Through ongoing education, training and cutting edge technology, we bring the latest innovations in specialty architectural finishes to your project. Long Island Egress Pros Inc welcomes the opportunity to assist you with your particular project needs. Give us a call; you'll be glad you did. We look forward to working with you

"Professional from start to finish"

Sean O on May 2025

Welcome to Long Island Egress Pros, Inc.! We are the experts when it comes to residential renovations. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction in which we serve the client from the developmental stages of a project to final completion. By early involvement in the conceptual phase of a project, we can explore all design possibilities with the client to assist in obtaining the best balance of aesthetics and budget covering all aspects. Through ongoing education, training and cutting edge technology, we bring the latest innovations in specialty architectural finishes to your project. Long Island Egress Pros Inc welcomes the opportunity to assist you with your particular project needs. Give us a call; you'll be glad you did. We look forward to working with you

"Professional from start to finish"

Sean O on May 2025


Avatar for Lorenzo Napolitano Construction Inc.

Lorenzo Napolitano Construction Inc.

4 Quogue Plaza Trail
4.94(
16
)
Approved Pro

Lorenzo Napolitano Construction Inc.

4 Quogue Plaza Trail
4.94(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
31 years of experience

We're dedicated to providing our clients with the very best in concrete installation for driveways, sidewalks, patios, steps, and a variety of other projects. We also specialize in all Stone Work including fireplace installations, pavers, & stucco siding. With over 25 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Great knowledgable guys. Very happy with their work"

Vincent R on September 2025

We're dedicated to providing our clients with the very best in concrete installation for driveways, sidewalks, patios, steps, and a variety of other projects. We also specialize in all Stone Work including fireplace installations, pavers, & stucco siding. With over 25 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Great knowledgable guys. Very happy with their work"

Vincent R on September 2025

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Windows questions, answered by experts

There are many standard window sizes. The most common windows, single or double-hung models, typically range from 2-feet by 3-feet up to 4-feet by 6-feet. Of course, sliding windows will be wider than they are tall, though the standard sizing follows the same measurements.

Double-pane windows cost an average of $900 per window. The price range for double-pane windows goes as low as $300 and as high as $4,500 per window. This window type differs from single-pane windows by spacers separating the panes and helping strengthen them while holding them in place. A gas like argon or krypton typically fills the space between the panes.

Costs depend on window size, material, labor rates, and any necessary structural modifications.

Yes, but professionals use specialized equipment and cleaning solutions to safely achieve streak-free, long-lasting results.

Steel windows are durable and last a long time, but not in all weather conditions. If you live near the ocean, these windows might not be the best choice, as the saltwater breeze can corrode the metal. Steel windows are also more expensive than other types of windows. However, with that high price point comes a sleek, distinctive design that many homeowners find appealing, especially for modern decor. You can also restore steel windows to get a longer lifespan from them, so they can last longer than vinyl, aluminum, and even wood.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Sag Harbor, NY homeowners’ guide to window services

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