Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Always On Top Roofing. 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
$9,000 – $18,600
Typical roofing project around $13,800
Always On Top Roofing is an Abington, MA roofing company founded and run by Derek Zablosky, who the business says has more than 15 years of roofing experience; its own site lists roof installation and repair, gutters, and siding across the South Shore. For years, the reviews told a strikingly consistent story: 26 of the 29 on file, most from 2022 through 2025, are five stars and nearly all of them name Derek personally — same-day assessments after a leak, callbacks within the hour, a full 60-year-old roof tear-off finished in a single day, and a technician who told one panicked homeowner their roof was actually fine before fixing a small cracked chimney seal for free on his way to another job. Several describe him personally showing up with a business card, working around insurance-claim delays, and taking photos at every stage of an install. That record comes with two serious exceptions worth knowing before booking. A review tied to a 2024 job says the customer paid $8,700 for shingle work on a garage and house that the contractor never started, and that they filed both a police report and a complaint with the Massachusetts Attorney General's Office. Separately, in a February 2026 review — the only one in the last six months — a customer describes a leaking roof, workers drinking on the job, and no response to follow-up calls. The Better Business Bureau's own profile lines up with that shift: it lists a B- grade, one complaint on file for failing to respond, and two negative customer reviews describing unresolved leaks and poor responsiveness. Given a long, specific history of praise sitting next to a recent, serious, and apparently unresolved payment complaint, it's worth getting a written contract, a firm timeline, and a deposit structure tied to work actually starting before handing over any money.
Leaking roof unqualified workers , drinking on the job , reached out to repair leaks no return calls totally ghosted
Had a missing shingle on roof vent from wind damage. Called Derek and talked to him live. Didn't have to leave voice mail.He requested that I text him a description of my issue and he came out the next day and did an excellent job repairing it. Need a roof repair? He's the go to guy.
Derek resolved issue with leaking skylights after other roofers wanted to replace 18 year old skylights and roof costing almost 20k. Returned my call promptly, came when he stated and work hard and continuously.
I called Always after a big rain storm couple of weeks ago. Derek came the same day to assess the situation and we decided for a new roof. There was a slight delay with the project caused by the weather and the material supplier but the work was done and I’m very happy with the outcome. Very professional, good price and excellent clean up afterwards. Great job!
Derek and Always On Top Roofing have done a great job replacing our 60 year old roof (3 layers of shingles!). He showed knowledgeable attention to detail and performed wise preventative maintence where needed. They were fast, quiet and efficient and it was all done in just one day. They also did a good job of cleaning up afterwards. Derek took the time to explain everything beforehand and communicated clearly and honestly. The cost was very reasonable, too. I have referred him to my daughter for her roofing needs and highly recommend him and his company. B. Vance Whitman, MA
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Re-analyzed rating 2.9 → 3.4
Established 2.9 rating
Ice dam calls answered next day5.0
Emergency response3.3
Deep exterior track record3.4
Family-run roofing since 19273.5