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MVP Home Improvements
In-law cottage addition management4.9
Verified record
Sentry Roofing replaces asphalt shingle roofs. A 2016 customer said Paul and TJ kept them informed about when the materials and the dumpster would arrive, and the crew finished the roof in 1 day. A 2019 customer said another company estimated $23,000 and Sentry did the job for $8300; that customer said the leak was gone after several rains. A 2018 customer described a roof with 7 ridges, 8 valleys and 19 flat sections that the crew completed in 2 days. A 2016 customer said Paul brought a shingle sample board when he came to give a quote, and the estimate was exactly what they paid. A 2017 customer said the owner did not require a deposit to start the job. A 2019 customer said the company ruined their floors after putting skylights in, then denied it. A 2018 customer complained about how caulking was applied at the seams of a rubberized roof they hired Sentry to install in 2016.
They were prompt, courteous, and efficient. As well, the other company who looked at our roof estimated $23,000, but Sentry did a beautiful job for $8300. What a difference. We've already had rain several times since our install, and the leak is gone and I have the best looking roof on the block!
Outstanding experience by Sentry Roofing! I hired them to replace my roof. They replaced my roof in 1 day on a 2000 sq. feet colonial home. T.J. was very helpful explaining the quote and answering all my questions before I decided to use them. They showed up early morning, set up everything they need for the job, stripped off my old roof, installed the new roof, cleaned up, and left. They completed the job fast (in an extremely hot day) and left my yard and driveway super clean. Itâ s like they never showed up! Amazing work. They used Owens Corning Asphalt Shingles. I was beyond satisfied for the work they did. Thank you to Dave Ayers (the supervisor) for explaining the whole process prior to starting job. He was, along with the crew, very professional, friendly, and efficient. I would hire them again and I strongly recommend them to anyone! The price was very reasonable.
Careless, ruined our floors after putting the skylights in... and then denied it. The workers are rude.
I hired this company back in the spring to remove the old asphalt shingles and put on new shingles. I couldn't be happier with their work. TJ was great to work with and they arrived on time and on budget. I would highly recommend this company to anyone wanting to replace their existing asphalt shingles. They provide quality work at a reasonable price, Great job!! Thank you, Kim D.
Great roofing company. Will recommend and use again!
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1 change recorded — last scanned Oct 18, 2026.
Typical New Hampshire range for this kind of work, from regional averages — not a quote from Sentry Roofing - Facebook. Use it to sanity-check bids, then get the real number in writing.
A square is 100 sq ft of roof surface — bigger than the floor plan because of pitch and overhangs.
Estimated range
$7,900 – $16,400
Typical roofing project around $12,200
In-law cottage addition management4.9