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Bonn Construction Co is a Danvers roofing contractor working across the Middleton, Peabody and Danvers area. Its Massachusetts home improvement contractor registration, 126962, is held under BONN CONSTRUCTION CO INC and comes back expired in the state registry. A BuildZoom listing pages 28 recorded projects under the company, overwhelmingly roofing permits in those three towns. The written accounts on file are dated and both are complaints about the work itself. In an April 2022 account, a homeowner said Bonn had installed a roof in 2013 and that leaks had recurred since, describing pre-existing flashing re-used rather than replaced and questioning whether it was adequate for a leak-tight installation. A September 2020 account came from someone who says they are a contractor themselves: a skylight fitted on a 90-degree day, roof shingles damaged during the work, and no one telling them about the damage until they climbed up and found it. A federal enforcement database records a 2022 workplace safety or health violation against BONN CONSTRUCTION CO., INC. carrying an $8,702 penalty. Anyone considering this company for roof or skylight work should start with the registration: an expired home improvement contractor registration affects what recourse a homeowner has, so ask for the current registration number and verify it with the state before signing anything. Ask, too, for the written warranty on both workmanship and materials, and for how flashing will be handled — replacement versus re-use is exactly what the 2022 account turned on.
“| BONN CONSTRUCTION CO., INC. | | | workplace safety or health violation | 2022 | $ 8,702 |”
I had a roof installed by Bonn Construction in 2013, since that time I have had multiple instances of leaks in my home. Pre existing flashing that doesn't appear to be sufficient or appropriate for a leak tight roofing installation was re-used. Granular ice and water shield was used instead of high performance ice and water shield such as Grace brand ice and water. One section of PVC trim was hacked together- a small block of PVC was used to transition two longer pieces of trim. It looks absolutely terrible and has the potential to be a leak/failure point. When asked to address my concerns after discovering significant property damage had occurred, the owner refused to honor the workmanship warranty stated in the contract.
Terrible installation of Skylight. Skylight was installed on a 90 degree sunny day, unfortunately my roof shingles were damaged in the process, but that’s not the worst part, The installers never notified me of the damage , but I being a contractor myself got on the roof and found the damage. I brought up the issue to the owner and he blamed the damage on there not being a ridge vent on the roof, not the fact that it was 90 degrees that day or the fact that he didn’t inform me of the damage.. I also never received a bill from the company, but today I got a phone call from Jim the owner that I have not paid him, and he was going to put me in for late payment. I informed Jim that we never received the bill .So beware of this company because in my mind if someone does more damage than good ... They are not professionals . I’ll wait for my bill ...
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2 changes recorded — last scanned Sep 3, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Bonn Construction Co. 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
Sweeps for nails with a magnet5.0
Storm and insurance work4.8
Fast turnaround4.3
Building north of Boston since 1988Not yet rated
