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

Avatar for Central Exteriors
Central Exteriors
4.5(
901
)
Sealant for Roof - Apply

Serving Monrovia, MD and surrounding areas

Approved

In business since 1956

Free estimates

Emergency services offered

"We bought our house in 2012 in Montgomery County, MD. The roof was past its design life when we bought the place, and although there were no signs of leaks, we decided to put a new roof on the house in 2016 - better to get it done before problems arise than after. Central was great. I forgot to move my car out of the driveway the morning they were scheduled to start work but they managed to make things work anyway. My handyman happened to stop by while they were working and told me it looked like they knew what they were doing, which was comforting. The real proof, though, is my roof has been on the house for 4 years, including the wettest year on record here in the DC area, with no signs of leaks anywhere in the house. This may not seem impressive - roofs aren't supposed to leak. However, both my sister and parents have had new roofs put on their houses in the intervening years - they live several States away so could not use Central Exteriors. Both had leak issues after having the new roofs put on and had to have the roofer come back out to fix things - in my sister's case it took several return visits and some major work to make things right. Central Exteriors were price competitive with other roofing companies I consulted with, and gave me a 50 year warranty on the shingles and workmanship, which nobody else offered. I would not hesitate to hire them again. Very pleased."
Preparing the East side of the building for new cedar shakes.
Drone footage of roof install.
Finished look.
Roofers Working
Shake Roof

+12

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Presidential Exteriors LLC
Presidential Exteriors LLC
4.7(
180
)
Sealant for Roof - Apply

Serving Monrovia, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"Presidential Exteriors is a great company to do a roof replacement with! We had our roof replaced in early February 2021 and we couldn’t be happier. The whole team was amazing to work with. Nate worked closely with us every step of the way to make sure we were happy and getting the best product and prices possible. He really made us feel like family. Elena was great at communicating every step of the process. The day of installation team was amazing. They dropped off the equipment one day before the project even though it had snowed the night before. The morning they came to do the roof, we still had ice on the roof, but instead of delaying the project, they scraped all of the ice off our roof and still got the whole roof done in one day! Our new roof is great and we couldn’t be happier. We very highly recommend Presidential Exteriors for any roof inspection and roof replacement. We will absolutely be keeping them on our list for any future projects with our house."
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 Skyline Construction Group DMV, LLC
Skyline Construction Group DMV, LLC
4.8(
18
)
Sealant for Roof - Apply

Serving Monrovia, 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 Monrovia, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I couldn't have been more pleased with Charm City Roofing. Home repairs, especially roof repairs were something I dreaded to think about. My experience with Charm City Roofing changed all of that. Starting with my point of contact Mac who did a WONDERFUL job explaining the process and providing a comprehensive step by step of how the installation of my replacement roof would be completed. My home currently has solar panels which needed to be removed before the installation of the new roof could begin, due to the slow response from the solar company this took over 4 months! Dispite this headache, while waiting for the removal the Charm City Roofing Team checked in with me periodically, maintained my tentative install date and continually assured me they would get the job done. The roof was completed as promised and I couldn't be more happy, the installers showed up on time! roof was completed in one business day! (Again as promised) Yard was cleaned up Completely of every material."
Additional Photos
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Additional Photos

+37

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Your Vision Remodeling, LLC
Your Vision Remodeling, LLC
New to Angi
Sealant for Roof - Apply

Serving Monrovia, MD and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

Your Vision Remodeling LLC 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. \n

Response time1 day
4 neighbors recently requested a quote
Avatar for William Mackay Roofing
William Mackay Roofing
4.8(
106
)
Sealant for Roof - Apply

Serving Monrovia, MD and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"

Working with William Mackay roofing was a great experience.  I knew from my home inspection that I needed to have a membrane sealed on my roof. I called three roofers before the winter and during early spring and every one of them was slow to get back to me, or just not very informative, would charge for the estimate, etc...

I called William Mackay based on the Angies List service reviews and I was not disappointed.  They contacted me immediately through the app.  They were available and they arrived on time.  They provided a free estimate, took photos of my roof, and shared them with me. They showed me exactly what needed to be done and they were straightforward - they did not try to sell services I didn't need.

When I inquired about scheduling, they had space on that day's schedule - they immediately called a worker in and got to work on my roof. The maintenance was completed in a few hours. They took photos of the completed work and emailed both "before" and "after" photos with an in-depth explanation  of the completed work.

Ben and Bill Mackay (sons of William) handled the job. Ben Mackay shared information on how to maintain my roof.  I'm a new homeowner and I bought a well-maintained house that is almost a century old. He shared info on the difference between newly constructed roofs and the materials used, and roofs like mine.  Bill managed the job.

I paid a fair price but more importantly, I know that I can call them and they will do a great job.  They also stand behind their work. Family owned businesses are important - they rely on word of mouth and repeat business.  Highly recommend.


"
Before
During
After
Before
Rubber Patch

+17

Recommended by98%of homeowners
Avatar for S&K Roofing, Siding, and Windows
S&K Roofing, Siding, and Windows
4.7(
531
)
Sealant for Roof - Apply

Serving Monrovia, MD and surrounding areas

In business since 1980

Free estimates

Warranties offered

"Superb siding and gutter installation by a company that installed windows in our sunroom and a metal roof on the house. The crew, Jae, Freddy and Freddy Jr worked meticulously for 2 weeks to complete the job. They were very tidy and considerate of our property and koi pond. They asked questions before proceeding if there were options to their plan. I highly recommend S&K and manager Chad Ringold for any windows, siding or roofing/gutter projects."
Before roof replacement.
During roof replacement.
After project completion.
Additional Photos
Additional Photos

+9

Response time6 hrs
Recommended by95%of homeowners
Avatar for Peak Roofing Contractors Inc
Peak Roofing Contractors Inc
4.8(
370
)
Sealant for Roof - Apply

Serving Monrovia, MD and surrounding areas

In business since 2006

Free estimates

Warranties offered

"Wow. So it always starts with Ryan Craft, an amazing bundle of positive energy and professionalism who comes to your house, walks your property and roof, and quite honestly, "owns" the project in a way that you know every aspect is being handled the right way. As you get close, and throughout the project, he will text and email you to make sure everything is handled the right way and you are satisfied. The team you deal with re project management, scheduling, billing, and leading the crew (Caitlyn, Kandi, Nicole, Denise, Tina, Mike, roofing lead Donnie and more that I know I am forgetting) are so so helpful. But the work? Amazing - for example, my house roof has a very large and tall porch gazebo that's very difficult to re-shingle, and they not only did a great job, but asked my permission to manufacture a "better" top for it ("not" part of the project, but they thought it would be cool). They replaced a wood "stump" that stuck out the top with a perfectly formed color matching cone that looks amazing! When one smaller project was completed (trim around the garage doors) and I saw some areas where the metal was curving, Peak management came out and said not only was that going to be repaired, he thought they could have done a better job matching the color - and said if i didn't mind, they would re-do the entire project! He was right! The new color was fantastic, and they didn't even have to do that. If you are thinking of a roof, siding, gutters, etc and a competition comes in with a better price, I submit that you will get what you pay for. The 12 or so years I have partnered with Peak for my projects, I haven't been paying "just" for the cost of material or labor. I've been paying for the kind of customer service you rarely experience these days."
Additional Photos
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Additional Photos

+1

Response rate100%
Recommended by98%of homeowners
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