Get matched with top roof sealant application pros in Gaithersburg, MD

W E Griffin Roofing

4.97(

Recommended by 98% of Angi customers

13 local quotes requested

W. E. Griffin Roofing is Maryland’s premiere roofing company. Incorporated in 1931, we have been servicing the D.C. and Maryland areas as a family owned and operated company by putting our customers first. Our quality roofing services focus on our most important friends; home owners and home builders. We look forward to building a lasting friendship with you in order to service all of your roofing needs.

"new flat copper roof and flashing"

Sabrina Z on January 2021

"new flat copper roof and flashing"

Sabrina Z on January 2021

Home Genius Exteriors

Home Genius Exteriors

Customers say: Quality work

Recommended by 98% of Angi customers

21 years of experience

Elevate your home with Home Genius Exteriors, setting the standard in Maryland and Washington DC by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It?s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"Everyone was amazing, workers and crew were efficient, cleanliness was great and we recommend them for all projects. Thank you Ty, AJ and Bryan for an great experience!"

charles n on December 2024

"Everyone was amazing, workers and crew were efficient, cleanliness was great and we recommend them for all projects. Thank you Ty, AJ and Bryan for an great experience!"

charles n on December 2024

Home Genius Exteriors

Home Genius Exteriors

2383 local quotes requested

21 years of experience

Elevate your home with Home Genius Exteriors, setting the standard in Maryland and Washington DC by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It’s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"Everybody I worked with was a professional. The work was good and finished on time."

Douglas Y on November 2025

Elevate your home with Home Genius Exteriors, setting the standard in Maryland and Washington DC by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It’s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"Everybody I worked with was a professional. The work was good and finished on time."

Douglas Y on November 2025

E R Roofing Co

E R Roofing Co

Customers say: Quality work

95 local quotes requested

18 years of experience

CALL E.R. ROOFING COMPANY FOR ALL YOUR ROOFING, SIDING AND GUTTER NEEDS. ASK ABOUT OUR UPCOMING FALL SPECIALS! We strive to provide excellent customer service and quality craftsmanship at affordable prices We specialize in: • Roof replacements • Roof repairs • Vinyl, Wood and Hardie plank siding replacements and repairs • Gutters • Window and Door replacements • Exterior trim repairs and replacements

"E.R. Roofing installed hardiboard siding on my house and new windows throughout the house. They were careful and professional in every way. The quality of the work is second to none. The pricing was very fair. And the after-the-job customer service has been nothing but over-the-top. Elliott is responsive and cares about his customers, which is why he will be the one to install the next roof on my house when it is time to do so. I can't say enough good things about E.R. Roofing."

Neal B B on May 2022

"E.R. Roofing installed hardiboard siding on my house and new windows throughout the house. They were careful and professional in every way. The quality of the work is second to none. The pricing was very fair. And the after-the-job customer service has been nothing but over-the-top. Elliott is responsive and cares about his customers, which is why he will be the one to install the next roof on my house when it is time to do so. I can't say enough good things about E.R. Roofing."

Neal B B on May 2022

Keith Roofing

Keith Roofing

Customers say: Super punctual

Recommended by 95% of Angi customers

35 local quotes requested

Keith Roofing has been serving residential, commercial, and industrial customers since 1960. We've built our reputation on providing a high-quality finished product that will last for years! Count on our team for honesty and integrity when it comes to serving the needs of home and business owners in the DC area. Because each roof provides different challenges, such as the pitch of the roof, type of shingles, the gutter system, and number of valleys, Keith Roofing offers thorough on-site inspections and true estimates of your roofing repair needs. WE are based in and only service Washington,DC- SO we specialize on working on these Beautiful Historic Homes we have here in the District.

"They couldn't have been more responsive or helpful. Customer satisfaction was clearly their top priority. It was literally some of the best customer service I have ever experienced! I could not recommend them more!"

Brent L on October 2020

"They couldn't have been more responsive or helpful. Customer satisfaction was clearly their top priority. It was literally some of the best customer service I have ever experienced! I could not recommend them more!"

Brent L on October 2020

Washingtonian Companies

5.00(

182 local quotes requested

Washingtonian Companies

7 years of experience

Transform your space with Washingtonian Companies, your interior/exterior design-build team. Whether it's roofing, windows, siding, decks, kitchens, bathrooms, or additions, we are your trusted partner to bring your vision to life and help personalize your surroundings.

"We were 100% satisfied with Washingtonian and with their work building our addition and deck. Not only was the workmanship and quality of the construction outstanding, but they operated with honesty and integrity. Their goal was our satisfaction and building a quality addition and deck. They accomplished all three and were reliable, dependable and conscientious. At no time did we believe that they had over-committed or were unable to deliver on what they had promised. They never cut corners to rush to another job nor did I ever feel that they were not spending the necessary time to ensure that the work on our job was thorough and complete. Travis, Kris and their crew were 100% professional, communicative and transparent. We will be using Washingtonian again, without hesitation. Our experience was excellent and they did an awesome job."

Walter J on January 2024

"We were 100% satisfied with Washingtonian and with their work building our addition and deck. Not only was the workmanship and quality of the construction outstanding, but they operated with honesty and integrity. Their goal was our satisfaction and building a quality addition and deck. They accomplished all three and were reliable, dependable and conscientious. At no time did we believe that they had over-committed or were unable to deliver on what they had promised. They never cut corners to rush to another job nor did I ever feel that they were not spending the necessary time to ensure that the work on our job was thorough and complete. Travis, Kris and their crew were 100% professional, communicative and transparent. We will be using Washingtonian again, without hesitation. Our experience was excellent and they did an awesome job."

Walter J on January 2024

Moses Williamson

4.92(

Moses Williamson

4.92(

Recommended by 93% of Angi customers

59 local quotes requested

Moses & son is a 2nd generation family owned, and operated home improvement business recognized by homeowners for quality roofing and gutter work on a 4-season basis. We provide a freedom consultation to customers requesting new and repair work on a variety of building materials including flat roofs , metal, copper, pvc gutters, asphalt shingle, and tile roofs. Slate roofs . complete customer satisfaction. Give Moses Williamson a call today for your free estimate! BBB Rated A+ since 2005!

"Put out a request to get gutters cleaned. Moses responed right away. He was able to give me a reasonable estimate based on sat view of my roof. Moses sent one of his crew out to my house and he did a excellent job clearing the gutters. He even blew leaves off of my porch. I would highly recommend Moses."

Pat K on November 2025

"Put out a request to get gutters cleaned. Moses responed right away. He was able to give me a reasonable estimate based on sat view of my roof. Moses sent one of his crew out to my house and he did a excellent job clearing the gutters. He even blew leaves off of my porch. I would highly recommend Moses."

Pat K on November 2025

Daniel Parks

Daniel Parks

Customers say: Quick response

59 years of experience

Free onsite estimate

Family owned and operated, 40 years experiece in roofing and gutters. We only use premium quality materials, highly qualified and BBB member.

"After interviewing several roofing companies, I chose Tom Parks .the son of the founder, Daniel Parks. He had an impressive portfolio of roofing jobs he had done along with many photos. He was very knowledgeable and seemed very honest and well trained especially with natural slate roofs. He worked with his son, Tom and his foreman, Edwin… they came early each day and worked non stop replacing by hand each damaged tile as well as the rotting wood. They finished the project in about four days and took many before and after photos of the roof. My family and I were very pleased with the beautiful new roof and highly recommend Daniel Parks roofing company! Also he gave us a nice discount so the price stayed within our budget."

Babs W on October 2025

Family owned and operated, 40 years experiece in roofing and gutters. We only use premium quality materials, highly qualified and BBB member.

"After interviewing several roofing companies, I chose Tom Parks .the son of the founder, Daniel Parks. He had an impressive portfolio of roofing jobs he had done along with many photos. He was very knowledgeable and seemed very honest and well trained especially with natural slate roofs. He worked with his son, Tom and his foreman, Edwin… they came early each day and worked non stop replacing by hand each damaged tile as well as the rotting wood. They finished the project in about four days and took many before and after photos of the roof. My family and I were very pleased with the beautiful new roof and highly recommend Daniel Parks roofing company! Also he gave us a nice discount so the price stayed within our budget."

Babs W on October 2025

Augustine Roofing LLC

Augustine Roofing LLC

Recommended by 98% of Angi customers

61 local quotes requested

WE NOW SERVICE MARYLAND FOR NEW ROOFS ONLY NO REPAIRS AT THIS TIME. Our experienced team, based out of Sterling, Va, has built a reputation for providing high-quality residential and commercial roofing services at affordable prices. Give us a call for a quick consultation. We'd be happy to schedule a free estimate and provide you with all of the material and warranty information you need to help you make your decision. Augustine is a veteran and offers military and senior citizen discounts. Class-A Contractors License # 2705 124869A. Additional contact name - Erin Howard.

"Overall, the workmanship was excellent, the price reasonable, and most importantly, Augustine continued to build a huge amount of trust with the customer through an honest and transparent process from beginning to end. Scheduling the initial estimate was easy and timely, good communication continued through the contract process, but we had to wait two months for word on work scheduling. Dakota Biller was a Godsend. He expertly talked through the full scope of options, pros, and cons. He listened to our unique needs, provided helpful guidance, and did not attempt to upsell. Installation was professional and cleanup was thorough. The final product looks magnificent! Price was the most reasonable of all highly ranked companies primarily due to Augustine’s willingness to only replace rotted fascia with new wood. Their 10-year warranty provided peace of mind. This was a RARE hassle-free project, and I cannot recommend Augustine Roofing enough."

David G on May 2025

"Overall, the workmanship was excellent, the price reasonable, and most importantly, Augustine continued to build a huge amount of trust with the customer through an honest and transparent process from beginning to end. Scheduling the initial estimate was easy and timely, good communication continued through the contract process, but we had to wait two months for word on work scheduling. Dakota Biller was a Godsend. He expertly talked through the full scope of options, pros, and cons. He listened to our unique needs, provided helpful guidance, and did not attempt to upsell. Installation was professional and cleanup was thorough. The final product looks magnificent! Price was the most reasonable of all highly ranked companies primarily due to Augustine’s willingness to only replace rotted fascia with new wood. Their 10-year warranty provided peace of mind. This was a RARE hassle-free project, and I cannot recommend Augustine Roofing enough."

David G on May 2025

Micho Construction

5.00(

Micho Construction

5.00(