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Find Roof sealant application pros in Lanham

Avatar for Home Genius Exteriors

Home Genius Exteriors

4.94(
352
)
Approved Pro

Home Genius Exteriors

4.94(
352
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor 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

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


Avatar for Home Genius Exteriors

Home Genius Exteriors

4.97(
747
)
Approved Pro

Home Genius Exteriors

4.97(
747
)
Approved Pro
Super Service Award
Customers say: True professional
2342 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!

"I think they did a fantastic job. Daniel was very professional and made things clear on what has been done and he is very polite. Crew is also worked very hard and did an amazing job."

Elizabeth H 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!

"I think they did a fantastic job. Daniel was very professional and made things clear on what has been done and he is very polite. Crew is also worked very hard and did an amazing job."

Elizabeth H on November 2025


Avatar for William MacKay

William MacKay

4.89(
208
)
Approved Pro

William MacKay

4.89(
208
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
22 years of experience

Deal with a contractor, not a salesman! William Mackay Roofing has been providing roofing, gutter, and general contracting services in the D.C and surrounding areas for over three generations with a fourth on its way. As a family owned and operated company we specialize in all forms of roofing, tuck pointing, gutter work, and new siding projects. We operate and are licensed/insured for D.C, Virginia, and Maryland. William Mackay is proud to be A+ rated with the BBB and we take pride in our customer service and quality of work. Should you choose to work with us, your satisfaction will be our top priority! If you are in need of an estimate our family will be more than happy to help you out so please don't hesitate to contact us. We hope to hear from you soon!

"Did a great job and cleaned up all debris."

Joe V on August 2024

Deal with a contractor, not a salesman! William Mackay Roofing has been providing roofing, gutter, and general contracting services in the D.C and surrounding areas for over three generations with a fourth on its way. As a family owned and operated company we specialize in all forms of roofing, tuck pointing, gutter work, and new siding projects. We operate and are licensed/insured for D.C, Virginia, and Maryland. William Mackay is proud to be A+ rated with the BBB and we take pride in our customer service and quality of work. Should you choose to work with us, your satisfaction will be our top priority! If you are in need of an estimate our family will be more than happy to help you out so please don't hesitate to contact us. We hope to hear from you soon!

"Did a great job and cleaned up all debris."

Joe V on August 2024


Keith Roofing

4.87(
313
)
Approved Pro

Keith Roofing

4.87(
313
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
33 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

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


R and D Cross Inc

5.00(
6
)
Approved Pro

R and D Cross Inc

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 local quotes requested

Specializing in new Metal Roofing! We work with local Amish crews to get your job done right. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"They were excellent. They were on time. They were always polite."

Tracey B on December 2020

Specializing in new Metal Roofing! We work with local Amish crews to get your job done right. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"They were excellent. They were on time. They were always polite."

Tracey B on December 2020


Avatar for Moses Williamson

Moses Williamson

4.92(
43
)
Approved Pro

Moses Williamson

4.92(
43
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor 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

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


Daniel Parks

4.65(
144
)
Approved Pro

Daniel Parks

4.65(
144
)
Approved Pro
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


Avatar for Amazing Skylights Inc

Amazing Skylights Inc

4.88(
117
)
Approved Pro

Amazing Skylights Inc

4.88(
117
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
17 local quotes requested

WHEN IT COMES TO ROOFING, WE HAVE YOU COVERED! OVER 28 YEARS OF EXPERIENCE! We are an award-winning top roofing installer, specializing in full replacement of Asphalt Shingle, Flat Roof, and Standing Seam Metal Roof Systems. With expert installation and high quality materials, we offier Lifetime-limited Warranties AND one of our superivors will be on site for your project from start to finish! We are also a premier dealer and installer for Solatube International, maker of the world-famous Solatube miracle skylight and Solarstar solar-powered attic fan. Solatubes are an affordable way to bring natural light into dark areas of your home - bathrooms, hallways, closets, kitchens – any areas that needs more light. Solatubes cost much less than conventional skylights, save on electric bills, are guaranteed not to leak, come with a 10-year warranty and are eligible for a 30% federal tax credit on parts and labor. Solatube's widely popular Solarstar attic fan literally pays for itself. It costs nothing to operate, installs in one hour, is guaranteed for 10 years and is also eligible for a 30 % federal tax credit. Save money and go Green with our wonderful products and services. We provide exceptional service to our clients and offer them with the best daylighting system in the world, America's number one selling solar attic fan and more. For additional information and to set up estimates and installations give us a call. We specialize in Solatube sales and installation, expert roofing repairs and replacements, and installing exceptional new gutters and gutter guards. Seeing is believing so please visit our beautiful new showroom, where we have a dozen exciting Solatube models on display. Contact us TODAY for your FREE estimate!!

"Fast on site response, expert recommendations, perfectly performed work. HIGHLY Recommended!!!"

Frederick M G on April 2023

WHEN IT COMES TO ROOFING, WE HAVE YOU COVERED! OVER 28 YEARS OF EXPERIENCE! We are an award-winning top roofing installer, specializing in full replacement of Asphalt Shingle, Flat Roof, and Standing Seam Metal Roof Systems. With expert installation and high quality materials, we offier Lifetime-limited Warranties AND one of our superivors will be on site for your project from start to finish! We are also a premier dealer and installer for Solatube International, maker of the world-famous Solatube miracle skylight and Solarstar solar-powered attic fan. Solatubes are an affordable way to bring natural light into dark areas of your home - bathrooms, hallways, closets, kitchens – any areas that needs more light. Solatubes cost much less than conventional skylights, save on electric bills, are guaranteed not to leak, come with a 10-year warranty and are eligible for a 30% federal tax credit on parts and labor. Solatube's widely popular Solarstar attic fan literally pays for itself. It costs nothing to operate, installs in one hour, is guaranteed for 10 years and is also eligible for a 30 % federal tax credit. Save money and go Green with our wonderful products and services. We provide exceptional service to our clients and offer them with the best daylighting system in the world, America's number one selling solar attic fan and more. For additional information and to set up estimates and installations give us a call. We specialize in Solatube sales and installation, expert roofing repairs and replacements, and installing exceptional new gutters and gutter guards. Seeing is believing so please visit our beautiful new showroom, where we have a dozen exciting Solatube models on display. Contact us TODAY for your FREE estimate!!

"Fast on site response, expert recommendations, perfectly performed work. HIGHLY Recommended!!!"

Frederick M G on April 2023


"I would not hesitate to recommend - responsive, great communication, reasonable pricing. We had a disastrous roof flooding experience from a flat roofed dormer and needed it fixed quickly. As Roberto worked on the dormers he found significant water damage below the shingles, documenting it with photos for us. Although it cost more than the original estimate to replace the flat plywood sheaths and wood fascia, it was still reasonable and the work done was thorough and looks great. "

Jane S on June 2025

xx

"I would not hesitate to recommend - responsive, great communication, reasonable pricing. We had a disastrous roof flooding experience from a flat roofed dormer and needed it fixed quickly. As Roberto worked on the dormers he found significant water damage below the shingles, documenting it with photos for us. Although it cost more than the original estimate to replace the flat plywood sheaths and wood fascia, it was still reasonable and the work done was thorough and looks great. "

Jane S on June 2025


Avatar for John Krause Construction

John Krause Construction

4.67(
127
)
Approved Pro

John Krause Construction

4.67(
127
)
Approved Pro
Customers say: Quality work
120 local quotes requested
27 years of experience

John Krause Construction, Inc. is an unparalleled team of professionals dedicated to the mission of custom home design and building. Together the John Krause team creates a superlative custom home building and home improvement experience tailored to the needs, wants and dreams of each client. We are passionate about our client relationships and this is reflected in all that we do. From the in-house design process, interior and exterior customization and artisanal craftsmanship to the professional management and accurate fixed pricing, our aim is your total satisfaction with your new home, architectural restoration or home remodeling project. 

"I am writing to formally express my deep dissatisfaction with the recent retaining wall replacement project completed by John Krause Construction (JKC) at my property. After reading positive reviews and receiving an estimate that, although over my budget, seemed reasonable for the work involved, I made the decision to hire JKC. Unfortunately, this has proven to be a significant mistake, and I am left extremely disappointed with both the quality of work and the overall experience. Here are the main issues I encountered: 1. Unprofessional Behavior: The crew exhibited unacceptable behavior while working on my property. Not only did I witness them disposing of bodily fluids on-site, but they were also disrespectful and dismissive. when I raised concerns no response was received. I now smell urine when entering and exiting my garage. 2. Unresponsive Ownership: I have attempted to reach out to the owner multiple times to address these concerns and resolve the issues, but my messages have been met with silence. This lack of communication is incredibly frustrating and has only added to my disappointment. The owner refused to speak on the phone since the owner was made aware of the call being recorded. 3. Property Damage: During the construction process, my property was left damaged in multiple areas. This included e.g., landscaping destruction, equipment damage. Personal crew members vehicles being driven through my yard leaving deep tire marks damage. 4. Subpar Quality of Work: Despite the high cost of the project, the final result does not meet the standards outlined in the estimate or contract. No proper grading was completed. Every time it rains pools of water sits in front and behind the wall. The response received was. “we have passed all inspections.  There will be some water pooling while it is settling still. Plus the fact of the hard rain today, it will happen.” The wall has been completed for 2 months. Given the extensive problems, stress and anxiety I have faced. I do not recommend John Krause Construction."

B F on April 2025

John Krause Construction, Inc. is an unparalleled team of professionals dedicated to the mission of custom home design and building. Together the John Krause team creates a superlative custom home building and home improvement experience tailored to the needs, wants and dreams of each client. We are passionate about our client relationships and this is reflected in all that we do. From the in-house design process, interior and exterior customization and artisanal craftsmanship to the professional management and accurate fixed pricing, our aim is your total satisfaction with your new home, architectural restoration or home remodeling project. 

"I am writing to formally express my deep dissatisfaction with the recent retaining wall replacement project completed by John Krause Construction (JKC) at my property. After reading positive reviews and receiving an estimate that, although over my budget, seemed reasonable for the work involved, I made the decision to hire JKC. Unfortunately, this has proven to be a significant mistake, and I am left extremely disappointed with both the quality of work and the overall experience. Here are the main issues I encountered: 1. Unprofessional Behavior: The crew exhibited unacceptable behavior while working on my property. Not only did I witness them disposing of bodily fluids on-site, but they were also disrespectful and dismissive. when I raised concerns no response was received. I now smell urine when entering and exiting my garage. 2. Unresponsive Ownership: I have attempted to reach out to the owner multiple times to address these concerns and resolve the issues, but my messages have been met with silence. This lack of communication is incredibly frustrating and has only added to my disappointment. The owner refused to speak on the phone since the owner was made aware of the call being recorded. 3. Property Damage: During the construction process, my property was left damaged in multiple areas. This included e.g., landscaping destruction, equipment damage. Personal crew members vehicles being driven through my yard leaving deep tire marks damage. 4. Subpar Quality of Work: Despite the high cost of the project, the final result does not meet the standards outlined in the estimate or contract. No proper grading was completed. Every time it rains pools of water sits in front and behind the wall. The response received was. “we have passed all inspections.  There will be some water pooling while it is settling still. Plus the fact of the hard rain today, it will happen.” The wall has been completed for 2 months. Given the extensive problems, stress and anxiety I have faced. I do not recommend John Krause Construction."

B F on April 2025

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FAQs for roof sealant application projects in Lanham, MD

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. 

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.

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.

The Lanham, MD homeowners’ guide to roof sealant applications

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