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Top-Rated Roof sealant application pros in Westminster - Updated Nov 2026

Avatar for Presidential Exteriors LLC
Presidential Exteriors LLC
4.7(
180
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"We were convinced to have our roof done after the roofing expert inspected our roof and sat us down for his presentation. We appreciated the time spent to explain the project management plan from the delivery of materials to the post-installation inspection. Everyone we met was very professional and the clean up crew did a great job."
Newly installed roof
Windows & Garage Door Replacement
Finished product with brand new siding.
Newly installed roof
Windows & Garage Door Replacement

+44

Response time1 day
Response rate100%
35 neighbors recently requested a quote
Avatar for Cox Roofing
Cox Roofing
4.5(
80
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I highly recommend Cox roofing to anybody who is considering having a new roof installed. They very affordable, prompt, and professional, They also communicated well from start to finish. I received before and after pictures of the project."
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+5

10 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Skyline Construction Group DMV, LLC
Skyline Construction Group DMV, LLC
4.8(
18
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Fernando and his team were super great. Job was done well and quickly - totally on schedule even with some extra work that was necessary. Crew was responsive and professional. Would 100% hire for future projects."
Driveway replacement
Garage Addition- concrete foundation and slab
New patio !!!
Concrete driveway
Full movement and replacement. Before and after.

+24

Response time4 days
Response rate100%
7 neighbors recently requested a quote
Avatar for Charm City Roofing
Charm City Roofing
4.3(
43
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Charm City Roofing did an excellent job installing my new roof! From start to finish, the team was professional, punctual, and very knowledgeable. They explained the entire process clearly, completed the work efficiently, and left everything clean and neat afterward. The quality of the installation is outstanding, and I feel confident knowing my home is well protected. I highly recommend Charm City Roofing to anyone looking for reliable and top-notch roofing services!"
Additional Photos
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+37

Response time8 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for The Charm City General Contracting, LLC
The Charm City General Contracting, LLC
5.0(
4
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"My roof was leaking so bad I thought i needed new roof charm city came gave me free estimate for new roof but also repairs I was surprised because I was almost sold on new roof but he was honest and said we could repair it get you about other 3 years before you need new roof I was sold and relieved that is honest business I i appreciated them being fair they did great job stopped every leak gave me warranty I couldn't be happier and I'll be calling them in 3 years to put on my new roof listen if your roof is leaking stop right here charm city is your roofing contractor 5 leaks all stopped fair price thank you charm city"
New deck
New install
1 neighbors recently requested a quote
Avatar for William Mackay Roofing
William Mackay Roofing
4.8(
106
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"I would definitely contact William Mackay Roofing again! I was told by a different contractor who fixed some gutters, that I needed to have someone who knew how to fix flat roofs inspect my flat porch roof. After asking around, several people highly recommended contacting William Mackay. Brittany quickly scheduled for a technician to come out -- and the same day Mr. Mackay inspected my roof and emailed me the proposal. He answered all my questions (as did Brittany!) The work was scheduled quickly - and the installers/technicians completed the work in one day. Everything was cleaned up (old roof pieces, etc) afterwards. I was a bit wary about having anything done to my home with COVID-19 -- but everyone really seemed aware of social distancing. I was very happy with how streamlined this went, and how pleasant it was to work with William Mackay Roofing."
Before
During
After
Before
Rubber Patch

+17

Recommended by98%of homeowners
Avatar for Garner Roofing Company LLC
Garner Roofing Company LLC
4.6(
140
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"A+ for ethics and professionalism. The repair on our old and non-standard roof was tricky and ultimately didn't last (roof leaked within 14 months). However, when the owner was contacted (he's busy so it took a while) he came out personally and arranged for an alternative fix to the roof. The owner, Dave Garner, did this at no charge, without being asked. We still don't know if we have a permanent solution but we're really impressed with Dave and the company's business practices. We would be pleased to use them for any future roofing repairs (although we hope we don't have any!)."
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+3

Recommended by96%of homeowners
Avatar for S&K Roofing, Siding, and Windows
S&K Roofing, Siding, and Windows
4.7(
531
)
Sealant for Roof - Apply

Serving Westminster, MD and surrounding areas

In business since 1980

Free estimates

Warranties offered

"We had been having leaking in our ceiling near our chimney for almost a year, despite having had our roof and gutters and having our chimney flashing redone last year. After a number of frustrating follow-ups with our original roofer and chimney repair company, we called S&K, which came highly recommended on our community page. Sean came out within two weeks despite a very busy rainy season. He checked our roof and told us quite honestly that the problem was not the roof or even the flashing, which had been done well but the porousness of our older bricks. He applied some silicone sealant right then and told us to call him again if it didn't work after the heavy rains this weekend; he also mentioned we should just keep periodically reapplying this sealant ourselves. This leak has stressed us out for months and Sean was extremely honest and helpful. He didn't try to sell us any expensive repairs but was upfront about the problem. The level of professionalism, knowledge and service exhibited by Sean and everyone we spoke with is so rare nowadays; we can't recommend him or S&K highly enough."
Before roof replacement.
During roof replacement.
After project completion.
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+9

Response time6 hrs
Recommended by95%of homeowners
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