Verified record
A new Title V septic system and a custom composite deck are among the jobs JTC customers have described. The company says it is a family-owned general contractor and excavator based in Centerville, serving Cape Cod. Its website names John Callahan the third as the owner and says the business was founded in 2008, with family construction experience going back to the 1960s. It advertises excavation, sewer connections, septic installation, additions, garages, remodeling and custom homes. In a May 2022 Google review, a customer said JTC installed a new Title V septic system, worked in a timely manner and kept them informed throughout the process. A June 2018 HomeAdvisor reviewer described a composite deck built by John and his crew. That customer praised communication, attention to the detail a custom deck required, arrival when promised and completion on time. In a May 2017 HomeAdvisor review, another customer said the work was done on the promised day and planned to discuss further deck work. JTC Contractors, Inc.'s Massachusetts home improvement contractor registration, number 194982, was verified as expired by the state registry in August 2026. HomeAdvisor also lists no emergency service and free estimates.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from JTC Contracting. 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
JTC installed a new title V septic system for me. Their work was timely and they kept me well informed of the process. A pleasure to work with.
Yes, I recommend this pro.
Yes, I recommend this pro. John communicated very well during the whole job and always asked if we were happy. He has the skill and ability to do the level of detail a custom deck requires. He and his crew were always here when they said they would be and they finished the job on time. My new composite deck looks great and we would definitely hire this pro again. The neighbors watched what he can do and have also asked John to price their home improvement projects.
Yes, I recommend this pro. When he said he would do the work on such a day, it was done that day. I plan on discussing further work on my deck with him.
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Sep 30, 2026.
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