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Roof sealant application pros in Potomac

Avatar for James McMillan Contracting
James McMillan Contracting
10100 Twin Rivers Road Unit 415
4.73(
54
)
Approved Pro
James McMillan Contracting
10100 Twin Rivers Road Unit 415
4.73(
54
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
25 years of experience

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


Avatar for Home Genius Exteriors
Home Genius Exteriors
8201 Corporate Drive, Suite G10
4.94(
352
)
Approved Pro
Home Genius Exteriors
8201 Corporate Drive, Suite G10
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
8201 Corporate Drive Suite G10
4.97(
591
)
Approved Pro
Home Genius Exteriors
8201 Corporate Drive Suite G10
4.97(
591
)
Approved Pro
Super Service Award
Customers say: True professional
2170 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!

"Pakos crew was courteous, friendly and professional. They arrived on time and installed all 6 of my windows in less than 3 hours from start to finish. Would highly recommend and will be calling them back in the future to complete the remainder of my windows!"

Karen T on July 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!

"Pakos crew was courteous, friendly and professional. They arrived on time and installed all 6 of my windows in less than 3 hours from start to finish. Would highly recommend and will be calling them back in the future to complete the remainder of my windows!"

Karen T on July 2025


Avatar for William MacKay
William MacKay
1519 Fair Oak Drive
4.89(
208
)
Approved Pro
William MacKay
1519 Fair Oak Drive
4.89(
208
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
14 local quotes requested

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


Daniel Parks
672 Old Mill Rd., Ste. 240
4.65(
143
)
Approved Pro
Daniel Parks
672 Old Mill Rd., Ste. 240
4.65(
143
)
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.

"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


Avatar for New Castle Constructs, LLC
New Castle Constructs, LLC
27 E Randall St
5.00(
28
)
Approved Pro
New Castle Constructs, LLC
27 E Randall St
5.00(
28
)
Approved Pro
Super Service Award
Customers say: True professional
89 local quotes requested
2 years of experience

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


Avatar for D. Fuentes Painting
D. Fuentes Painting
4601 North Fairfax Drive, Suite 1200
4.79(
98
)
Approved Pro
D. Fuentes Painting
4601 North Fairfax Drive, Suite 1200
4.79(
98
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
48 local quotes requested

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


Avatar for Power General Contractors LLC
Power General Contractors LLC
4511 Orleans Lane
4.91(
44
)
Approved Pro
Power General Contractors LLC
4511 Orleans Lane
4.91(
44
)
Approved Pro
Super Service Award
Customers say: Super punctual
20 local quotes requested
6 years of experience

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

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
11519 HG Truman Rd
4.50(
146
)
Approved Pro
John Krause Construction
11519 HG Truman Rd
4.50(
146
)
Approved Pro
Customers say: Quality work
3375 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


Avatar for Complete Roofing Solutions - Rockville
Complete Roofing Solutions - Rockville
11140 Rockville Pike
4.68(
153
)
Approved Pro
Complete Roofing Solutions - Rockville
11140 Rockville Pike
4.68(
153
)
Approved Pro
Customers say: Super punctual
447 local quotes requested
41 years of experience

Visit us at www.rooffixed.com for estimates. There you will find a complete understanding of our services or to schedule a free estimate. We are a full service roofing company. Business is limited to only roofing. We do not subcontract our jobs, but rather have our own crews of professional installers. We do residential and a lot of commercial flat roofing services. Our services include traditional shingles, slate, metal and cedar shake. Additionally we service all forms of flat roofs including EPDM, TPO, and Modified. Also, we have a tremendous amount of experience in roof deck issues that may arise. Complete Roofing Solutions is a Rockville based residential roofing company that has been installing new roofs for nearly three decades. Our quality workmanship has earned us a reputation as one of the area’s premier roofing companies. We do roofs and just roofs, unlike many companies that claim to do it all. We install the roof you want, period. No surprises or disappointments. We maintain OSHA safety and controls throughout the installation process to ensure that your roof is built to the highest standards. Having trouble with your multi-family or commercial roof? We are experts in finding issues causing water penetration. We utilize fenestration tests to quickly determine where the problem is and to ensure there are no disruptions for your tenants. We understand the complexity of all commercial applications from green roofs, EPDM, TPO and Modified Bid. We can assess your warranty and make quick recommendations as to what needs to be done.

"They did great from what we have seen so far. Even took us in at a point when they were overbooked."

John F on April 2024

Visit us at www.rooffixed.com for estimates. There you will find a complete understanding of our services or to schedule a free estimate. We are a full service roofing company. Business is limited to only roofing. We do not subcontract our jobs, but rather have our own crews of professional installers. We do residential and a lot of commercial flat roofing services. Our services include traditional shingles, slate, metal and cedar shake. Additionally we service all forms of flat roofs including EPDM, TPO, and Modified. Also, we have a tremendous amount of experience in roof deck issues that may arise. Complete Roofing Solutions is a Rockville based residential roofing company that has been installing new roofs for nearly three decades. Our quality workmanship has earned us a reputation as one of the area’s premier roofing companies. We do roofs and just roofs, unlike many companies that claim to do it all. We install the roof you want, period. No surprises or disappointments. We maintain OSHA safety and controls throughout the installation process to ensure that your roof is built to the highest standards. Having trouble with your multi-family or commercial roof? We are experts in finding issues causing water penetration. We utilize fenestration tests to quickly determine where the problem is and to ensure there are no disruptions for your tenants. We understand the complexity of all commercial applications from green roofs, EPDM, TPO and Modified Bid. We can assess your warranty and make quick recommendations as to what needs to be done.

"They did great from what we have seen so far. Even took us in at a point when they were overbooked."

John F on April 2024

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FAQs for roof sealant application projects in Potomac, 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 Potomac, MD homeowners’ guide to roof sealant applications
From average costs to expert advice, get all the answers you need to get your job done.
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