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

Avatar for All Under One Roof
All Under One Roof
4.7(
131
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"John came in today on a holiday day to check my roof. He is a very honest man. He told me my roof is still good for another two years, and doesn’t need any repairs at this time. I highly recommend him for any roofing projects. Thank you John!"
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+26

Response time6 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for BBS General Construction Inc
BBS General Construction Inc
4.6(
14
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"the work was great, he went in their and cleaned up everything, and put in a piece of pad to cover it to keep the birds out; he also checked every part of the roof for any possible entries as well."
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+16

Response time10 hrs
11 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Diamond Construction, Inc.
Diamond Construction, Inc.
4.3(
112
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

Here at Diamond Construction, Inc., we are dedicated to providing you with exceptional customer service. We specialize in all areas of roofing. From siding to roofs, to windows and gutters. We'll be there to make sure it's done right the first time. We have been in business for over 10 years and are backed by over 10 years of experience. We are accredited by the BBB, Genflex, and are fully insured. So call today and set up your free estimate.

Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel

+93

4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Overstate Roofing Services Inc.
Overstate Roofing Services Inc.
4.2(
80
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Needed sealant for my business to get reaady for the upcoming Winter. Overstate reached out and came in quickly to give me an estimate. They were respectful and quite easy to deal with. job was do efficiently and onme. im happy with the team that worked with me."
Roof replacement
Roof replacement
1696 neighbors recently requested a quote
Recommended by1%of homeowners
Avatar for Robert Evans Jr. Contracting
Robert Evans Jr. Contracting
4.9(
61
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"I couldn’t be more satisfied with the work done by Robert Evans Jr. Contracting. The price was fair, the work was exceptional. The crew was obviously very experienced and was very meticulous about their work. The crew chief kept me informed of their progress, any issues they found and how they were addressed. They did an excellent job cleaning up the entire site before leaving. Within a couple of hours of my initial contact I had a date for a visit to review the project and provide an estimate. I received the estimate later that day by email and was pleasantly surprised by the reasonable quote and timing was only two weeks and that it would be a two day job. The crew arrived exactly two weeks later and at the end of the first day all of the original roof was stripped and 80% of the installation of the underlayment, shingles and trim was complete. They finished on day two, and after they finished the entire crew did a site walk around looking for anything they had missed. I would definitely recommend Robert Evans Jr. Contracting for all your roofing needs."
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Certainteed Grand Manor Lifetime Shingles
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.
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+3

Recommended by100%of homeowners
Avatar for Legacy Roofing
Legacy Roofing
5.0(
29
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Lifetime Roofing is excellent to do business with. They are friendly, well organized and work quickly to get the job done.They consistently do great work for our Customers. Kyle is very professional, knowledgeable, skilled and performs above and beyond. We definitely would recommend them!"
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+7

Recommended by100%of homeowners
Avatar for NMTI General Contractors, Inc.
NMTI General Contractors, Inc.
4.8(
40
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Ramon and his company did an excellent job for us in putting on a new roof on our large, complex, old, shingle style Victorian house. The proposal was comprehensive and delivered quickly. We negotiated a few points and then went ahead. Ramon stuck to every detail of the proposal and his crew showed up on time to start the job. They appeared to be an experienced, excellent, hard working crew that knew exactly what they were doing. They started early each day and worked till after dark. And, Ramon's brother, Wilson, who was in charge of the crew, kept me informed through the whole process. They finished our very complex roof in just 2.5 days. The roof looks great and everything was cleaned up and back to normal by the third day."
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+119

Response time5 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for FRS Roofing And Gutter Services
FRS Roofing And Gutter Services
4.7(
118
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

In business since 1999

Free estimates

"I recently had FRS Roofing install a roof on my home. I was impressed with the way they conducted business, and I am very happy with the finished product. One of their salesmen, Joseph Costello went on my roof and filmed the issues he saw that needed attention. He showed me a video on his computer of the inspection he had just completed of my roof. He then showed me his suggestion of what should be done and also had samples of the materials that FRS would use on the roof replacement. I was impressed with the materials that would be used and chose FRS to replace my roof. I watched the roofers replace the roof and perform the work and cleanup. After the job was complete Joseph Costello once again went on the roof and filmed the finished product for me to view on his computer. Very happy with the entire process, Thank You."
Clean cuts.
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+21

Recommended by95%of homeowners
Avatar for Tar Star Roofing
Tar Star Roofing
4.9(
77
)
Sealant for Roof - Apply

Serving Chelmsford, MA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"This company is the best! Anthony responded immediately to my much needed request, came out and saw the roofing issue that others had missed, and repaired it 100%. He even did a water test to be sure that the repair was perfect! I called him again a few days later for another roofing issue and he again responded very promptly and corrected an issue that another roofing company earlier this year had completely botched! The cost was amazingly reasonable and less than other companies. Thank you Anthony, you're the best!!!"
Response time10 hrs
Response rate97%
4 neighbors recently requested a quote
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Showing 1-10 of 261

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