Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Jason Kamps Builders LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$23,000 – $35,000
Typical remodeling project around $29,000
Jason Kamps Builders is a design-build firm working out of Ipswich, building custom homes and handling high-end renovations and additions across Cape Ann, the North Shore, and into New Hampshire — the company also fabricates its own millwork in-house. Jason Kamps founded the company in 1997, and it says it has been in business 29 years, with a senior project manager, production manager, office manager, and lead carpenter on the team alongside him. The written reviews on file are dated — one from 2014, one from 2018 — but both describe the same story: a custom home delivered on budget and, in one case, in record time. The 2018 review, about a home built the prior year, said the company exceeded expectations and left the family with 'a house without any problems'; the 2014 review, about a custom oceanfront build, called Kamps a talented craftsman who stayed within budget. BuildZoom's permit-history profile backs this up with 12 permitted projects since 2009 — additions, kitchen and bath remodels, window replacements, re-siding, an elevator fit-out, and a $557,000 two-story addition among them. The company's Massachusetts home improvement contractor registration is active, verified directly against the state registry, and it also holds an active construction supervisor license. The Better Business Bureau has accredited the firm since 2003 and rates it A+. BuildZoom's permit history also lists two earlier registration numbers as cancelled alongside the current active one — worth asking about if it matters to you, though the current registration and BBB standing are both clean. With only two written reviews on file, and both several years old, there isn't a large recent sample to lean on, but the permit record and licensing are solid. For a custom home or a major addition, this looks like a firm with real, verified experience at that scale; ask to see recent work given how dated the written reviews are.
Jason Kamps built us a lovely home last year. He exceeded our expectations and we would highly recommend him. His subs are the best, everyone worked very hard and the outcome is a house without any problems that we love. Jason held to his budget on all items he was responsible to provide. We have built several other homes but this was far and away our best building experience.
We hired Jason to build our custom oceanfront home. He did a terrific job, stayed within budget and the house was built in record time. He's a fine, talented craftsman and I highly recommend him
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1 change recorded — last scanned Aug 1, 2026.
Best of Boston and Best of North Shore Home4.0
Custom woodwork3.7
Historic restoration3.4
State-verified Home Improvement Contractor license since 2026Not yet rated
Basement tile work called incredible3.8