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Roof sealant application pros in Riverdale Park
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
James McMillan Contracting 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.
"James and his crew are amazing! They are honest, trustworthy, and fair. I got ripped off by another company that had extremely poor workmanship. I called Jim and explained the issue and he sent his crew to fix it the next day. I want to thank him from the bottom of my heart for his help with this issue. I feel so much better now that the hole in my roof has been repaired the right way."
Patrice G on July 2024
James McMillan Contracting 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.
"James and his crew are amazing! They are honest, trustworthy, and fair. I got ripped off by another company that had extremely poor workmanship. I called Jim and explained the issue and he sent his crew to fix it the next day. I want to thank him from the bottom of my heart for his help with this issue. I feel so much better now that the hole in my roof has been repaired the right way."
Patrice G on July 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!
"Everybody was on time & the roofers got right to work around 8 AM. They did an amazing job with clean up which I was concerned about at first. There wasn't a lot of noise, and the crew was formed of a few great guys. Ty and Dylan were both personable and clarified any questions or concerns I had throughout the job. They exceeded my expectations!"
Joan M on June 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 was on time & the roofers got right to work around 8 AM. They did an amazing job with clean up which I was concerned about at first. There wasn't a lot of noise, and the crew was formed of a few great guys. Ty and Dylan were both personable and clarified any questions or concerns I had throughout the job. They exceeded my expectations!"
Joan M on June 2025
Family owned and operated, 40 years experiece in roofing and gutters. We only use premium quality materials, highly qualified and BBB member.
"Reasonably priced and responsive. His team provided next day service to complete roof repairs."
David G on May 2025
Family owned and operated, 40 years experiece in roofing and gutters. We only use premium quality materials, highly qualified and BBB member.
"Reasonably priced and responsive. His team provided next day service to complete roof repairs."
David G on May 2025
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
New Castle Constructs 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.
"Great job!"
Aaron P on June 2025
New Castle Constructs 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.
"Great job!"
Aaron P on June 2025
Our continuing goal is to provide professional services to our customers on an ongoing basis. Integrity, honesty, quality workmanship, and customer service are our priorities. We always go the extra mile to ensure customer satisfaction. Day or Evening Free Estimates Available* Virtual Estimates available. Take a photo - Measure - Call - We Install - Its that simple. *All homeowners must be present and other conditions apply
"Amazing and quick service and amazing customer service"
Katie D on June 2024
Our continuing goal is to provide professional services to our customers on an ongoing basis. Integrity, honesty, quality workmanship, and customer service are our priorities. We always go the extra mile to ensure customer satisfaction. Day or Evening Free Estimates Available* Virtual Estimates available. Take a photo - Measure - Call - We Install - Its that simple. *All homeowners must be present and other conditions apply
"Amazing and quick service and amazing customer service"
Katie D on June 2024
D. Fuentes painting 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.
"Very professional and very high quality."
Teryal T on May 2025
D. Fuentes painting 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.
"Very professional and very high quality."
Teryal T on May 2025
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"I've used them on 3 different roof repairs at 3 different times and places over the past year. I've been extremely satisfied with their price, timeliness and quality. "
Rajasekhar J on April 2025
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"I've used them on 3 different roof repairs at 3 different times and places over the past year. I've been extremely satisfied with their price, timeliness and quality. "
Rajasekhar J on April 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 was on time & the roofers got right to work around 8 AM. They did an amazing job with clean up which I was concerned about at first. There wasn't a lot of noise, and the crew was formed of a few great guys. Ty and Dylan were both personable and clarified any questions or concerns I had throughout the job. They exceeded my expectations!"
Joan M on June 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 was on time & the roofers got right to work around 8 AM. They did an amazing job with clean up which I was concerned about at first. There wasn't a lot of noise, and the crew was formed of a few great guys. Ty and Dylan were both personable and clarified any questions or concerns I had throughout the job. They exceeded my expectations!"
Joan M on June 2025
Roof sealant applications FAQs
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.
- Roofing Installation & Roof Repair
- Traditional Tile Roofing - Install or Replace
- Flat, Foam, or Single Ply Roofing - Install or Replace
- Natural Slate Roofing - Install or Replace
- Metal Roofing - Install or Replace
- Asphalt Shingle Roofing - Install or Replace
- Wood Shake or Composite Roofing - Repair
- Heating Cable for Roof - Install
- Natural Slate Roofing - Repair
- Wood Shake or Composite Roofing - Install or Replace
- Flat, Foam or Single Ply Roofing - Repair
- Traditional Tile Roofing - Repair
- Asphalt Shingle Roofing - Repair
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