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    Average homeowner rating
  • Verified reviews icon597
    Verified roofing services reviews

Find Roofers in Thornwood

Avatar for King Quality Construction Inc

King Quality Construction Inc

3.81(
118
)
Approved Pro

King Quality Construction Inc

3.81(
118
)
Approved Pro
Customers say: Quality work
108 local quotes requested
33 years of experience

With fuel prices at an all time high, many homeowners are facing the challenge of affording their homes due to sky rocketing heating and cooling bills. King Quality Construction Inc., Long Island’s siding, window and roofing specialists, wants to help you save energy and put equity back in your home by installing a full line of energy-efficient products that, according to co-owner Jeff Brett, are guaranteed to save you money. “At King Quality, we carry the exclusive line of Cedar Ridge Composite Siding, which gives you the beautiful look of wood at half the price,” Jeff explains. “This maintenance-free siding resists warping, rotting, cracking, moisture, insects and flame spread, all while saving you 20 percent on your energy bills…guaranteed.” Additionally, Jeff said that the exclusive line of windows by Simonton, King Quality specifications triple pane windows with super spacer energy saver (gas does not escape) windows are only as good as the seal. Additional DBA - King Quality Construction. King Quality’s seven-part, patented roofing system controls moisture through the ventilation system and prolongs the life of the roof, along with a leak proof guarantee quality shingles, distinctive ridge cap shingles, and effective attic and soffit ventilation. Family owned and operated and fully licensed by the Department of Consumer Affairs, King Quality has become a landmark on Long Island. ROOFING-SIDING-WINDOWS WE ARE OFFERING 0% FINANCING FOR 12 MONTHS

"They installed our roof in the pouring down rain. Asked multiple times for them to stop, they did not. Paid for the 50 year warranty. Our roof has flaws now that require repairs especially with the winter months approaching. I reached out on Facebook and within seconds my question was deleted and I was blocked. My wife reached out to Jeff Brett and received a response to now find out that he too has blocked her. This company will not admit to their mistakes nor take the appropriate action to correct them. Call and either they don't answer or we get the run around. On top of all of this they damaged hundreds if not a few thousand worth of my brand new flashing and vinyl siding. This company is not worth their word nor contracts considering they are actively breaking the agreement in which we signed for. GO ANYWHERE ELSE!"

Michael B on October 2025

With fuel prices at an all time high, many homeowners are facing the challenge of affording their homes due to sky rocketing heating and cooling bills. King Quality Construction Inc., Long Island’s siding, window and roofing specialists, wants to help you save energy and put equity back in your home by installing a full line of energy-efficient products that, according to co-owner Jeff Brett, are guaranteed to save you money. “At King Quality, we carry the exclusive line of Cedar Ridge Composite Siding, which gives you the beautiful look of wood at half the price,” Jeff explains. “This maintenance-free siding resists warping, rotting, cracking, moisture, insects and flame spread, all while saving you 20 percent on your energy bills…guaranteed.” Additionally, Jeff said that the exclusive line of windows by Simonton, King Quality specifications triple pane windows with super spacer energy saver (gas does not escape) windows are only as good as the seal. Additional DBA - King Quality Construction. King Quality’s seven-part, patented roofing system controls moisture through the ventilation system and prolongs the life of the roof, along with a leak proof guarantee quality shingles, distinctive ridge cap shingles, and effective attic and soffit ventilation. Family owned and operated and fully licensed by the Department of Consumer Affairs, King Quality has become a landmark on Long Island. ROOFING-SIDING-WINDOWS WE ARE OFFERING 0% FINANCING FOR 12 MONTHS

"They installed our roof in the pouring down rain. Asked multiple times for them to stop, they did not. Paid for the 50 year warranty. Our roof has flaws now that require repairs especially with the winter months approaching. I reached out on Facebook and within seconds my question was deleted and I was blocked. My wife reached out to Jeff Brett and received a response to now find out that he too has blocked her. This company will not admit to their mistakes nor take the appropriate action to correct them. Call and either they don't answer or we get the run around. On top of all of this they damaged hundreds if not a few thousand worth of my brand new flashing and vinyl siding. This company is not worth their word nor contracts considering they are actively breaking the agreement in which we signed for. GO ANYWHERE ELSE!"

Michael B on October 2025


Avatar for Brothers Aluminum Corp

Brothers Aluminum Corp

4.43(
182
)
Approved Pro

Brothers Aluminum Corp

4.43(
182
)
Approved Pro
Customers say: Quality work
32 local quotes requested
45 years of experience

For over 35 years, Brothers Aluminum has been committed to providing our customers with products and services custom tailored to their home remodeling needs. This commitment includes providing free in-home price assessments, 100% financing*, and lifetime warranties on our products. We are not a repair service. We specialize in siding and roofing installation; we cannot accept a repair project. Brothers Aluminum prides itself on its rich history, impeccable reputation (as exemplified by our A+ rating with the Better Business Bureau), professionalism, workmanship, and the attention to detail that makes each remodeling project unique. Whether your project calls for energy efficiency, durability, low maintenance, a budget friendly alternative, or a wide range of design and color options, you can trust that we will give your project the one-on-one attention it deserves. Having serviced over 60,000 homes on Long Island and the Tri-State area, it is customer satisfaction that has allowed Brothers Aluminum to expand from a siding company to a full service home remodeler. Today, we proudly offer our extensive knowledge based on decades of experience to ensure the completion of your home makeover project will exceed your every expectation.

"We reached out to Brother's as a former customer from 40 years ago. They came to my home, spent over an hour with us to listen to our needs, provide us with samples, and discuss options. Brothers resided our new home, replaced the roof, gutters, soffits, flashing of the chimney, replaced a new window, and pitched part of one of our chimney's. The work was impeccable. The owner was available for questions, the foreman was approachable, the workers kept the property neat, and our home looks brand new on the exterior. Brothers Alumnium didn't disappoint 40 years ago, and they didn't disappoint now. Highly recommend. 5 Stars!!!"

Sam A on October 2024

For over 35 years, Brothers Aluminum has been committed to providing our customers with products and services custom tailored to their home remodeling needs. This commitment includes providing free in-home price assessments, 100% financing*, and lifetime warranties on our products. We are not a repair service. We specialize in siding and roofing installation; we cannot accept a repair project. Brothers Aluminum prides itself on its rich history, impeccable reputation (as exemplified by our A+ rating with the Better Business Bureau), professionalism, workmanship, and the attention to detail that makes each remodeling project unique. Whether your project calls for energy efficiency, durability, low maintenance, a budget friendly alternative, or a wide range of design and color options, you can trust that we will give your project the one-on-one attention it deserves. Having serviced over 60,000 homes on Long Island and the Tri-State area, it is customer satisfaction that has allowed Brothers Aluminum to expand from a siding company to a full service home remodeler. Today, we proudly offer our extensive knowledge based on decades of experience to ensure the completion of your home makeover project will exceed your every expectation.

"We reached out to Brother's as a former customer from 40 years ago. They came to my home, spent over an hour with us to listen to our needs, provide us with samples, and discuss options. Brothers resided our new home, replaced the roof, gutters, soffits, flashing of the chimney, replaced a new window, and pitched part of one of our chimney's. The work was impeccable. The owner was available for questions, the foreman was approachable, the workers kept the property neat, and our home looks brand new on the exterior. Brothers Alumnium didn't disappoint 40 years ago, and they didn't disappoint now. Highly recommend. 5 Stars!!!"

Sam A on October 2024


"I couldn’t be more impressed with Strong Hammer Contracting! From the moment I contacted them, their team was professional, prompt, and clearly experienced. They arrived right on schedule and handled my gutter cleaning with meticulous care—thoroughly clearing out debris and even checking for minor issues I wouldn't have noticed myself. What really stood out was their attention to detail and respect for my property—they left everything spotless, and my gutters have never flowed better. It’s such a relief knowing I can count on a company that takes real pride in their work. I’ll definitely be using their services again and recommending them to everyone I know!"

Faisal J on June 2025

Strong Hammer Contracting is a Roofing & Gutter company that have employees with over 10 years of experience. Our Goal is to provide the best job for our clients.

"I couldn’t be more impressed with Strong Hammer Contracting! From the moment I contacted them, their team was professional, prompt, and clearly experienced. They arrived right on schedule and handled my gutter cleaning with meticulous care—thoroughly clearing out debris and even checking for minor issues I wouldn't have noticed myself. What really stood out was their attention to detail and respect for my property—they left everything spotless, and my gutters have never flowed better. It’s such a relief knowing I can count on a company that takes real pride in their work. I’ll definitely be using their services again and recommending them to everyone I know!"

Faisal J on June 2025


Avatar for Angus Theriault & Sons Inc

Angus Theriault & Sons Inc

4.95(
19
)
Approved Pro

Angus Theriault & Sons Inc

4.95(
19
)
Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 local quotes requested

Angus Theriault & Sons – Providing Residential and Commercial Roofing Services in Westchester County and Surrounding Areas for Over 75 Years. Integrity and quality work have been prime ingredients in our success from the start. We have built a solid reputation on customer satisfaction, achieved through quality work, attention to detail and prompt service.Angus Theriault & Sons specializes in residential roofing, sheet metal fabrication, gutters, soffit, fascia, copper and aluminum work and more. We can suggest the best application for your particular needs whether it be maintenance, reinforcement, restoration or a complete new roofing system. We carefully estimate every job, quote a reasonable price and complete the work in the shortest time possible. We are licensed, insured, and certified by the manufacturers and provide superior craftsmanship and experienced professionalism. Additional Email: [email protected]

"I called for a repair to my daughter's roof. The room with the wet sheetrock has a cathedral ceiling with no attic access to determine the source of the leak. Steve inspected the roof section and suggested that the wetness was due to condensation. Vents were installed and small section of roof was replaced at a very reasonable cost. Steve always responded to calls and follow-up questions promptly, Very competent and obliging. A pleasure to work with,"

Mel W on October 2020

Angus Theriault & Sons – Providing Residential and Commercial Roofing Services in Westchester County and Surrounding Areas for Over 75 Years. Integrity and quality work have been prime ingredients in our success from the start. We have built a solid reputation on customer satisfaction, achieved through quality work, attention to detail and prompt service.Angus Theriault & Sons specializes in residential roofing, sheet metal fabrication, gutters, soffit, fascia, copper and aluminum work and more. We can suggest the best application for your particular needs whether it be maintenance, reinforcement, restoration or a complete new roofing system. We carefully estimate every job, quote a reasonable price and complete the work in the shortest time possible. We are licensed, insured, and certified by the manufacturers and provide superior craftsmanship and experienced professionalism. Additional Email: [email protected]

"I called for a repair to my daughter's roof. The room with the wet sheetrock has a cathedral ceiling with no attic access to determine the source of the leak. Steve inspected the roof section and suggested that the wetness was due to condensation. Vents were installed and small section of roof was replaced at a very reasonable cost. Steve always responded to calls and follow-up questions promptly, Very competent and obliging. A pleasure to work with,"

Mel W on October 2020


"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 J&C Construction Group

J&C Construction Group

New on AngiNew on Angi
Approved Pro

J&C Construction Group

New on AngiNew on Angi
Approved Pro
169 local quotes requested
13 years of experience

J&C Construction Group 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. 10+ Years Experience

J&C Construction Group 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. 10+ Years Experience


Avatar for Dalmatia Roofing

Dalmatia Roofing

5.00(
4
)
Approved Pro

Dalmatia Roofing

5.00(
4
)
Approved Pro
Customers say: Quick response
31 local quotes requested
42 years of experience

Dalmatia Roofing is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 30 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"very well done job! Very reasonable price, and the cleanliness was amazing.!"

Noreen O on April 2025

Dalmatia Roofing is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 30 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"very well done job! Very reasonable price, and the cleanliness was amazing.!"

Noreen O on April 2025


Avatar for Quality & Efficiency Construction LLC

Quality & Efficiency Construction LLC

4.84(
19
)
Approved Pro

Quality & Efficiency Construction LLC

4.84(
19
)
Approved Pro
Customers say: Quick response
11 local quotes requested
1 years of experience

Quality & Efficiency Construction LLC 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.

"I really feel badly because I hate complaining. But even I can not deny this job is not good. I wanted the fence repaired and painted around my house. It it a wooden picket fence so lots of wooden boards had to be replaced. They replaced them but the knee wooden boards do not match the heights of the other pieces of wood and some of them are cut unevenly. The spacing of the wooden slats are also uneven. Some of the wood they used is the wrong size. The gate they rebuilt fell apart the day after they finished the job: I mean honestly it is just one thing after the other. So disappointing."

Laura M on July 2025

Quality & Efficiency Construction LLC 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.

"I really feel badly because I hate complaining. But even I can not deny this job is not good. I wanted the fence repaired and painted around my house. It it a wooden picket fence so lots of wooden boards had to be replaced. They replaced them but the knee wooden boards do not match the heights of the other pieces of wood and some of them are cut unevenly. The spacing of the wooden slats are also uneven. Some of the wood they used is the wrong size. The gate they rebuilt fell apart the day after they finished the job: I mean honestly it is just one thing after the other. So disappointing."

Laura M on July 2025


Avatar for Done Right Roofing

Done Right Roofing

4.81(
13
)
Approved Pro

Done Right Roofing

4.81(
13
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
81 local quotes requested

We are 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.

"Done right did it right! The shattered skylight was an odd size, so the company made one to fit, kept us informed of the slight delay in installation, were thorough in installing it among the roof tiles, with careful flashingâ kept us informed every step of the way!"

Janice B on November 2024

We are 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.

"Done right did it right! The shattered skylight was an odd size, so the company made one to fit, kept us informed of the slight delay in installation, were thorough in installing it among the roof tiles, with careful flashingâ kept us informed every step of the way!"

Janice B on November 2024


Avatar for East Coast Seal Right

East Coast Seal Right

5.00(
1
)
Approved Pro

East Coast Seal Right

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

Here at East Coast Seal Right, we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of quality home improvement services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Timely and professional. Highly recommended!"

Andrew S on May 2021

Here at East Coast Seal Right, we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of quality home improvement services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Timely and professional. Highly recommended!"

Andrew S on May 2021

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Roofing questions, answered by experts

Trusses and rafters each have advantages and disadvantages, so one isn’t necessarily better than the other. For example, trusses are more affordable and often come in prefabricated kits, so they’re easier to build than rafters. However, rafters are available in a variety of designs, so it’s easier to find one that fits your style preferences. Plus, if you want to build an attic at some point down the line, it’s far easier to do that with rafters rather than trusses.

A spray foam roof lasts 20 to 30 years if installed and maintained correctly. Spray foam roofs should be recoated every 10 to 15 years to maintain the UV protection and waterproof surface of the foam material. The longevity of spray foam roofing will depend on the thickness and density of the foam, the protective coating, and how well it’s maintained.

Shingles should overhang the drip edge by no more than 3/4-inch. Longer overhangs will more easily get caught in wind and leave you with an increased risk of roof uplift. You should have an overhang of at least 1/2-inch, though, as anything shorter can increase the risk of moisture getting blown under the shingles and damaging your roof deck or fascia.

Installing a green roof costs between $10 and $30 per square foot. Green roofs cost slightly more than standard roofs, due to the extra materials and installation know-how required. The type of green roof you choose also impacts the cost, with intensive roofing systems costing considerably more than extensive roofs.

Flat roofs are a solid option for people who want extra outdoor space. Flat roofs are very common in other parts of the world and only recently has the U.S. started to see the benefit in the increased space. Flat roofs are also easier to maintain and pose much less of a safety risk, which allows for more DIY work for handy homeowners. Some people also build green or living roofs that grow plant life. 

The Thornwood, NY homeowners’ guide to roofing services

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

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