Q: How long does a roof coating system last?

A roof coating system lasts between 10 and 20 years. With a premium coating and regular maintenance—like inspections and touch-ups—your roof will stay protected against weather damage and water intrusion. This enhances its durability and preserves its structural integrity throughout its lifespan. Make sure to keep in contact with a roof coating pro so that you don’t miss regulating resealing.

Q: How often should you recoat or reseal your roof?

You should recoat or reseal your roof every four to six years. Maintaining a consistent recoating schedule preserves the integrity of the protective seal and prevents moisture penetration and material degradation. High-quality, built-up roof systems require this interval, and if an EPDM roof begins to leak, replacing the coating becomes necessary to restore full protection.

Q: Can roof coating prevent roof leaks?

A roof coating can seal small cracks and stop minor water infiltration, helping to prevent roof leaks. While the coating enhances the roof’s durability and prevents early signs of leakage, it does not replace the need for full-scale repairs when substantial structural damage exists. Professional evaluation and repair are required to resolve significant water intrusion and ensure your roof retains long-lasting protection.

William Niland Roofing and Carpentry Services

William Niland Roofing and Carpentry Services

Customers say: True professional

Recommended by 92% of Angi customers

12 local quotes requested

Welcome to William Niland Roofing and Carpentry Services! 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 you!

"Bill returned my call and came right away , assessed the roof and repaired it the same day. I would definitely recommend him and use him again in the future."

Janice C on September 2025

Welcome to William Niland Roofing and Carpentry Services! 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 you!

"Bill returned my call and came right away , assessed the roof and repaired it the same day. I would definitely recommend him and use him again in the future."

Janice C on September 2025

M and J Home Improvement

M and J Home Improvement

Customers say: Quick response

Recommended by 97% of Angi customers

83 local quotes requested

The most important investment you will ever make is in your home. To protect that investment , you need a quality roof with good materials and quality installation. M and J Home Improvement, has fantastic ratings , a very good name and excellent standards. Don't allow a substandard roof replacement to damage your home. And whether you need repair or a new roof please don't hesitate to call M and J Home Improvement - Do it Once Do it Right!

"Quick response, fair quote, fast and excellent service. We had 4 old skylights to be replaced and Matt was great and very responsive throughout the process - initial visit and quote, installation - which was completed very quickly (in a week start to finish!) and professionally. Excellent work!"

Kilian S on July 2025

The most important investment you will ever make is in your home. To protect that investment , you need a quality roof with good materials and quality installation. M and J Home Improvement, has fantastic ratings , a very good name and excellent standards. Don't allow a substandard roof replacement to damage your home. And whether you need repair or a new roof please don't hesitate to call M and J Home Improvement - Do it Once Do it Right!

"Quick response, fair quote, fast and excellent service. We had 4 old skylights to be replaced and Matt was great and very responsive throughout the process - initial visit and quote, installation - which was completed very quickly (in a week start to finish!) and professionally. Excellent work!"

Kilian S on July 2025

Tar Star Roofing

Tar Star Roofing

Customers say: Quality work

Recommended by 91% of Angi customers

157 local quotes requested

Tar Star Roofing is the premier Roofing company serving New Hampshire and Massachusetts for over a decade. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. If you want your job done right, call Anthony today !

"Anthony of Tar Star Roofing was referred to me by my real estate agent, and was everything the agent said—honest, reasonably priced, expert, reliable, easy to work with. Tar Star got the job done in no time, and from the photos, the chimney and shingle repairs look amazing! Thank you, Tar Star!!"

Jon C on October 2025

Tar Star Roofing is the premier Roofing company serving New Hampshire and Massachusetts for over a decade. Our #1 goal as a company is having complete customer satisfaction and there is no job that is too big or too small. If you want your job done right, call Anthony today !

"Anthony of Tar Star Roofing was referred to me by my real estate agent, and was everything the agent said—honest, reasonably priced, expert, reliable, easy to work with. Tar Star got the job done in no time, and from the photos, the chimney and shingle repairs look amazing! Thank you, Tar Star!!"

Jon C on October 2025

Mighty Dog Roofing of Greater Middlesex

66 Tadmuck Road Unit 6

Mighty Dog Roofing of Greater Middlesex

66 Tadmuck Road Unit 6

101 local quotes requested

2 years of experience

Our Mission at Mighty Dog Roofing is to be an industry changer, leading the industry with integrity, finding innovative ways to exceed the expectations of our clients and the communities we serve, and providing a customized experience each and every time we care for their home. Mighty Dog Roofing is endorsed by the nation's top manufacturers and distributors, offering our customers the best and most innovative products and services in the industry. Our relationships with these partners allow us to give you the best warranties, backed by our Watchdog Maintenance Program to take care of your home not just today, but for the life of your roof. Each project we finish is paw stamped with our seal of commitment to the expectations we set at the beginning of our relationship.

"Mighty Dog Roofing did a great job fixing the rake and installing gutters on my house. Work was done in a day, work crew was neat and efficient. "

Karen O on February 2025

Our Mission at Mighty Dog Roofing is to be an industry changer, leading the industry with integrity, finding innovative ways to exceed the expectations of our clients and the communities we serve, and providing a customized experience each and every time we care for their home. Mighty Dog Roofing is endorsed by the nation's top manufacturers and distributors, offering our customers the best and most innovative products and services in the industry. Our relationships with these partners allow us to give you the best warranties, backed by our Watchdog Maintenance Program to take care of your home not just today, but for the life of your roof. Each project we finish is paw stamped with our seal of commitment to the expectations we set at the beginning of our relationship.

"Mighty Dog Roofing did a great job fixing the rake and installing gutters on my house. Work was done in a day, work crew was neat and efficient. "

Karen O on February 2025

United Home Experts & United Painting Co

United Home Experts & United Painting Co

Customers say: Super punctual

42 local quotes requested

27 years of experience

United brings over 25 years of experience in long-term, low maintenance and beautiful roofing, siding, windows and painting solutions. We offer top-quality products and a team of knowledgeable and experienced professionals committed to each step of your remodel. Our team is built to handle the unique needs of every New England property, so you get the best value for your investment. Not to mention our lifetime warranties, dedicated repair and service department, amazing customer service and the highest level of manufacturer certifications. We live by our core values: be positive, energetic, and fun; tell the truth and keep your word; creatively find solutions; know your stuff; make customers happy - and we look forward to serving you! Request an estimate: https://unitedhomeexperts.com/angies-list/

"Very disappointed. We asked for triple pane windows, and someone on their end ordered double pane. Luckily we noticed day of installation, and they had to re-order the proper ones we signed for. Finally the group of installers who came did a horrible job. Trash, insulation, and broken glass on our front lawn. Horribly cut wood trim that we had to redo ourselves. Poor sealing that we need to redo. Our hopper window was misaligned and couldn't close. The hinge arm on our casement window has detached from the channel. Communication is spotty from them, and sometimes we don't get an answer by call or text until we message repeatedly. It took over a year to have our project done from contract signing to end, and there are still issues cropping up. Out of the dozen of contractors we've hired the past year and a half, they have been the most disappointing and for what we paid, the quality of work was truly disappointing."

Cin W on June 2023

United brings over 25 years of experience in long-term, low maintenance and beautiful roofing, siding, windows and painting solutions. We offer top-quality products and a team of knowledgeable and experienced professionals committed to each step of your remodel. Our team is built to handle the unique needs of every New England property, so you get the best value for your investment. Not to mention our lifetime warranties, dedicated repair and service department, amazing customer service and the highest level of manufacturer certifications. We live by our core values: be positive, energetic, and fun; tell the truth and keep your word; creatively find solutions; know your stuff; make customers happy - and we look forward to serving you! Request an estimate: https://unitedhomeexperts.com/angies-list/

"Very disappointed. We asked for triple pane windows, and someone on their end ordered double pane. Luckily we noticed day of installation, and they had to re-order the proper ones we signed for. Finally the group of installers who came did a horrible job. Trash, insulation, and broken glass on our front lawn. Horribly cut wood trim that we had to redo ourselves. Poor sealing that we need to redo. Our hopper window was misaligned and couldn't close. The hinge arm on our casement window has detached from the channel. Communication is spotty from them, and sometimes we don't get an answer by call or text until we message repeatedly. It took over a year to have our project done from contract signing to end, and there are still issues cropping up. Out of the dozen of contractors we've hired the past year and a half, they have been the most disappointing and for what we paid, the quality of work was truly disappointing."

Cin W on June 2023

Hennelly & Son Roofing & Gutters

Hennelly & Son Roofing & Gutters

Customers say: Quality work

Recommended by 98% of Angi customers

66 local quotes requested

Hennelly & Son Roofing and Gutters is locally owned and operated, specializing in roofing, gutter installation, gutter cleaning, snow removal on roofs, and much more. Customer satisfaction is our top priority. Call us today for your free estimate!

"Great! Just one of the best home improvement vendors I’ve ever worked with. Excellent service and great work. Joe was super attentive to spotting and troubleshooting problem and worked incredibly well with our neighbors (we live in a brownstone). He worked quickly."

Brian L on September 2025

Hennelly & Son Roofing and Gutters is locally owned and operated, specializing in roofing, gutter installation, gutter cleaning, snow removal on roofs, and much more. Customer satisfaction is our top priority. Call us today for your free estimate!

"Great! Just one of the best home improvement vendors I’ve ever worked with. Excellent service and great work. Joe was super attentive to spotting and troubleshooting problem and worked incredibly well with our neighbors (we live in a brownstone). He worked quickly."

Brian L on September 2025

Arya Roofing & Contracting LLC

Arya Roofing & Contracting LLC

Customers say: Quality work

Recommended by 96% of Angi customers

14 local quotes requested

We are residential and commercial exterior contractor specialize in Roofing, siding and Gutters. Please visit us on Facebook ( Arya Roofing ) or Instagram (Arya Roofing) to check our daily work and job progress.

"You won't hear anything but a rave review from me. Ten did our complicated 3rd floor duplex roof --part flat roof, part mansard, plus a lower flat roof. For reasons I won't bore you with, his crew had to work hand in glove with two other contractors simultaneously (an insulation guy and a deck builder). A lot of roofers would hate that, coz if they don't agree on times, the job drags on. Ten and his crew worked very well with the other guys. The job was done excellently. I priced a lot of roofers and questioned him carefully on materials etc. He was very collaborative. I'd had prior experience with a roofer, and it was a disaster. (It was my first experience with a big contracting job as a homeowner. I've learned my lesson.) The very reason I hired Ten only 10 years after the prior job was because the prior job was lousy and the contractor a dishonest take-the-money-and-run guy. And don't get me started on the mess. They didn't do the seams or anything at ALL right --which is why I was gathering roofing nails off my driveway for years. NOT so with Ten's crew. They cleaned everything up. It's not just that Ten is responsive, fair thorough. He keeps a happy crew. I like that, both because a happy crew does better work, but also as a human, I like seeing guys working their butts off in the hot sun treated like equals. In the years since, a problem arose around a skylight. Ten showed up fast, got up on the roof himself and fixed it. After that job, I recommended him to a few friends. They were all ecstatic about Ten Arya, his crew, their attitude and their work. Good, capable, honorable contractors are precious. Just today, they came by and redid the small roof over my front porch. (I was pinching pennies and didn't get it done with the original job.) Nothing had changed in terms of responsiveness, thoroughness and quality of work. This is an A+++++ review. (One last thought: If he does your roof, you're already spending a chunk of change on your roof. So buying the crew grinders and soda for lunch is money well-spent. They get their energy levels up and they're happy to do the job right for you.)"

Stefano H. K on April 2023

We are residential and commercial exterior contractor specialize in Roofing, siding and Gutters. Please visit us on Facebook ( Arya Roofing ) or Instagram (Arya Roofing) to check our daily work and job progress.

"You won't hear anything but a rave review from me. Ten did our complicated 3rd floor duplex roof --part flat roof, part mansard, plus a lower flat roof. For reasons I won't bore you with, his crew had to work hand in glove with two other contractors simultaneously (an insulation guy and a deck builder). A lot of roofers would hate that, coz if they don't agree on times, the job drags on. Ten and his crew worked very well with the other guys. The job was done excellently. I priced a lot of roofers and questioned him carefully on materials etc. He was very collaborative. I'd had prior experience with a roofer, and it was a disaster. (It was my first experience with a big contracting job as a homeowner. I've learned my lesson.) The very reason I hired Ten only 10 years after the prior job was because the prior job was lousy and the contractor a dishonest take-the-money-and-run guy. And don't get me started on the mess. They didn't do the seams or anything at ALL right --which is why I was gathering roofing nails off my driveway for years. NOT so with Ten's crew. They cleaned everything up. It's not just that Ten is responsive, fair thorough. He keeps a happy crew. I like that, both because a happy crew does better work, but also as a human, I like seeing guys working their butts off in the hot sun treated like equals. In the years since, a problem arose around a skylight. Ten showed up fast, got up on the roof himself and fixed it. After that job, I recommended him to a few friends. They were all ecstatic about Ten Arya, his crew, their attitude and their work. Good, capable, honorable contractors are precious. Just today, they came by and redid the small roof over my front porch. (I was pinching pennies and didn't get it done with the original job.) Nothing had changed in terms of responsiveness, thoroughness and quality of work. This is an A+++++ review. (One last thought: If he does your roof, you're already spending a chunk of change on your roof. So buying the crew grinders and soda for lunch is money well-spent. They get their energy levels up and they're happy to do the job right for you.)"

Stefano H. K on April 2023

Diamond Construction Inc

Diamond Construction Inc

Customers say: True professional

Recommended by 92% of Angi customers

108 local quotes requested

Diamond Construction, Inc. has built a reputation on quality with honesty and integrity. We employ only the highest trained, professional roofers for our team. We partner with the highest quality shingle manufacturers, and we hand-nail all roofs to ensure quality installation as well. At the end of every project, our supervisor will do an inspection with the homeowner to ensure their satisfaction. At Diamond Construction our mission is to ensure peace of mind for each customer through exceptional service. We work hard to exceed our customers' expectations. Our quality and experience combined with our strong work ethic are only some of the reasons why we maintain an A+ rating on the BBB and Home Advisor - Pro. We are certified by GAF and CertainTeed. 100% Customer Satisfaction Guaranteed. Licensed, Insured, and Accredited Roofers. Convenient Evening & Weekend Appointments. Financing available. Affordable Roofing & Remodeling Quality. New England Premier Roofing Contractor. Additional Email at: office@diamondconstructionma.com

"Did a great Job with roof and helped me with the insurance claim from the storm damage to roof. They are prompt, clean, and super nice. Anything they moved potted plants, my deck furniture , was put back in place with care. They went over yard with a magnet device to get any loose nails , etc that may have fallen in grass. "

Cecile B on October 2025

Diamond Construction, Inc. has built a reputation on quality with honesty and integrity. We employ only the highest trained, professional roofers for our team. We partner with the highest quality shingle manufacturers, and we hand-nail all roofs to ensure quality installation as well. At the end of every project, our supervisor will do an inspection with the homeowner to ensure their satisfaction. At Diamond Construction our mission is to ensure peace of mind for each customer through exceptional service. We work hard to exceed our customers' expectations. Our quality and experience combined with our strong work ethic are only some of the reasons why we maintain an A+ rating on the BBB and Home Advisor - Pro. We are certified by GAF and CertainTeed. 100% Customer Satisfaction Guaranteed. Licensed, Insured, and Accredited Roofers. Convenient Evening & Weekend Appointments. Financing available. Affordable Roofing & Remodeling Quality. New England Premier Roofing Contractor. Additional Email at: office@diamondconstructionma.com

"Did a great Job with roof and helped me with the insurance claim from the storm damage to roof. They are prompt, clean, and super nice. Anything they moved potted plants, my deck furniture , was put back in place with care. They went over yard with a magnet device to get any loose nails , etc that may have fallen in grass. "

Cecile B on October 2025

Beantown Home Improvements, Inc.

Beantown Home Improvements, Inc.

Customers say: True professional

Recommended by 100% of Angi customers

15 local quotes requested

We are NOT affiliated with ANY other Beantown company whatsoever. Super Service Award Winners Every Year since advertising on Angie!! 3rd Generation family owned and operated Exterior Experts specializing in Asphalt & Rubber Roofing, All types of Siding: Vinyl, Cedar, Polymer, Fiber Cement & Stone, New Construction & Replacement Windows, Exterior Doors, Gutters, Skylights. In today's day and age where quality, craftsmanship and simple honesty can be tough, if not impossible to find, you need not look any further. We do it right the first time. When it comes down to it, we’re not sales people and no one likes to be sold. Our goal as home improvement experts is to inform you of the products we offer and how we can be of service, so that you can make an educated decision that you can live with and we can stand behind. With our simple no BS approach, our objective is to be up front and honest with every client, earn your respect, and offer outstanding customer service that is second to no one and Jim guarantees that! Simple right? We think so and it’s why we have outstanding reviews on any website in which you will find us. We honor our Veteran’s every day with significant discounts for Active, Reserve and Retired Military personnel. We are fully licensed as Builders (CS-107322) & Home Improvement Contractors (178728) and carry $1M-$2M in liability insurance.*We specialize mainly in Asphalt Roofing, Rubber Roofing, Skylights, Vinyl, James Hardie Fiber Cement, Cedar Siding, Decks, Windows and Doors.

"We started out dealing with one of the sales reps John Fossetti. Great experience. He told us about the company, about the products, had samples and a huge selection of siding to choose from. He was very open and answered all of our questions. After several consultations with many companies we knew Beantown was for us. We scheduled siding replacement for our entire house as well as new window replacement for all windows - 24 of them and a new slider. They were very professional and their crew was excellent. The windows had all new construction around them and we got ProVia windows that carry a lifetime warranty. They removed all of the old siding, fixed any rotten or damaged areas, wrapped the entire house to waterproof it and hung new siding, trim, gutters and gutter guards. It turned out absolutely beautiful. Our house looks new again! Jim Ewell the project manager was great to work with. He was very supportive, professional and answered all of our questions. Both he and John were a pleasure to work with. Also, their office staff were very helpful as well. Beantown went above and beyond for us and were so reasonably priced. I highly recommend them! I would definitely use them again for any future projects!"

Christie M on January 2025

We are NOT affiliated with ANY other Beantown company whatsoever. Super Service Award Winners Every Year since advertising on Angie!! 3rd Generation family owned and operated Exterior Experts specializing in Asphalt & Rubber Roofing, All types of Siding: Vinyl, Cedar, Polymer, Fiber Cement & Stone, New Construction & Replacement Windows, Exterior Doors, Gutters, Skylights. In today's day and age where quality, craftsmanship and simple honesty can be tough, if not impossible to find, you need not look any further. We do it right the first time. When it comes down to it, we’re not sales people and no one likes to be sold. Our goal as home improvement experts is to inform you of the products we offer and how we can be of service, so that you can make an educated decision that you can live with and we can stand behind. With our simple no BS approach, our objective is to be up front and honest with every client, earn your respect, and offer outstanding customer service that is second to no one and Jim guarantees that! Simple right? We think so and it’s why we have outstanding reviews on any website in which you will find us. We honor our Veteran’s every day with significant discounts for Active, Reserve and Retired Military personnel. We are fully licensed as Builders (CS-107322) & Home Improvement Contractors (178728) and carry $1M-$2M in liability insurance.*We specialize mainly in Asphalt Roofing, Rubber Roofing, Skylights, Vinyl, James Hardie Fiber Cement, Cedar Siding, Decks, Windows and Doors.

"We started out dealing with one of the sales reps John Fossetti. Great experience. He told us about the company, about the products, had samples and a huge selection of siding to choose from. He was very open and answered all of our questions. After several consultations with many companies we knew Beantown was for us. We scheduled siding replacement for our entire house as well as new window replacement for all windows - 24 of them and a new slider. They were very professional and their crew was excellent. The windows had all new construction around them and we got ProVia windows that carry a lifetime warranty. They removed all of the old siding, fixed any rotten or damaged areas, wrapped the entire house to waterproof it and hung new siding, trim, gutters and gutter guards. It turned out absolutely beautiful. Our house looks new again! Jim Ewell the project manager was great to work with. He was very supportive, professional and answered all of our questions. Both he and John were a pleasure to work with. Also, their office staff were very helpful as well. Beantown went above and beyond for us and were so reasonably priced. I highly recommend them! I would definitely use them again for any future projects!"

Christie M on January 2025

Willard Co

Willard Co

Customers say: Quality work

113 local quotes requested

152 years of experience

The Willard Company is a full service residential and commercial roofing company specializing in asphalt, copper, slate, tile, and wood (cedar) shingles, and rubber roofing. We install all types of siding. Parker M. Willard Jr., our 5th generation family member, is our General Manager with over 30 years of experience in the business. The Willard Company is fully licensed, trained and certified to give you the best products and workmanship at a fair and reasonable price. We still stand behind our workmanship longer than anyone in the industry and we pride ourselves on our service AFTER the job is complete. Massachusetts Home Improvement Contractor's Registration #106642. Construction Supervisor's License #085926.

"Excellent service. And quick issue resolution. I would definitely hire again"

Naeemah E on May 2022

The Willard Company is a full service residential and commercial roofing company specializing in asphalt, copper, slate, tile, and wood (cedar) shingles, and rubber roofing. We install all types of siding. Parker M. Willard Jr., our 5th generation family member, is our General Manager with over 30 years of experience in the business. The Willard Company is fully licensed, trained and certified to give you the best products and workmanship at a fair and reasonable price. We still stand behind our workmanship longer than anyone in the industry and we pride ourselves on our service AFTER the job is complete. Massachusetts Home Improvement Contractor's Registration #106642. Construction Supervisor's License #085926.

"Excellent service. And quick issue resolution. I would definitely hire again"

Naeemah E on May 2022

Get matched with top roof sealant application pros in Mattapan, MA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Find Roof sealant application pros in Mattapan

William Niland Roofing and Carpentry Services

William Niland Roofing and Carpentry Services

M and J Home Improvement

M and J Home Improvement

Tar Star Roofing

Tar Star Roofing

Mighty Dog Roofing of Greater Middlesex

Mighty Dog Roofing of Greater Middlesex

United Home Experts & United Painting Co

United Home Experts & United Painting Co

Hennelly & Son Roofing & Gutters

Hennelly & Son Roofing & Gutters

Arya Roofing & Contracting LLC

Arya Roofing & Contracting LLC

Diamond Construction Inc

Diamond Construction Inc

Beantown Home Improvements, Inc.

Beantown Home Improvements, Inc.

Willard Co

Willard Co

The Mattapan, MA homeowners’ guide to roof sealant applications

Roofing Area and Shingle Calculator

How Much Does a Composite Shingle Roof Cost in 2025?

Who Fixes Roofs? Learn Who to Hire for Roof Repairs

Replace a Roof in Michigan

Replace a Roof in New Jersey

Replace a Roof in Texas

Get our Angi-powered app

Get matched with top roof sealant application pros in Mattapan, MA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Find Roof sealant application pros in Mattapan

William Niland Roofing and Carpentry Services

William Niland Roofing and Carpentry Services

M and J Home Improvement

M and J Home Improvement

Tar Star Roofing

Tar Star Roofing

Mighty Dog Roofing of Greater Middlesex

Mighty Dog Roofing of Greater Middlesex

United Home Experts & United Painting Co

United Home Experts & United Painting Co

Hennelly & Son Roofing & Gutters

Hennelly & Son Roofing & Gutters

Arya Roofing & Contracting LLC

Arya Roofing & Contracting LLC

Diamond Construction Inc

Diamond Construction Inc

Beantown Home Improvements, Inc.

Beantown Home Improvements, Inc.

Willard Co

Willard Co

The Mattapan, MA homeowners’ guide to roof sealant applications

Roofing Area and Shingle Calculator

How Much Does a Composite Shingle Roof Cost in 2025?

Who Fixes Roofs? Learn Who to Hire for Roof Repairs

Replace a Roof in Michigan

Replace a Roof in New Jersey

Replace a Roof in Texas

Related projects

Major Markets