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Verified record
JA General Construction is a Brockton, Massachusetts roofing and siding shop run by Juan Loja Tenecota. On Thumbtack the company says it's been in business 14 years with a six-person crew, and it carries the platform's Top Pro badge for 2025. The clearest thread across its five Thumbtack reviews is how much customers value getting a straight answer before work starts. In an August 2026 review, a customer needing siding repair called Juan responsive from the first contact, said the quote was fair, and noted the crew started the next day to hit a deadline. In an October 2025 review, a homeowner who hired the company for a roof repair and partial roof replacement described the estimate as clear and detailed with no hidden fees, after quotes from other contractors came back either incomplete or unreasonably high. Two January 2026 reviews cover smaller jobs — Juan personally came out on a weekend to hang holiday lights, and the crew cleared more than a foot of snow from two long walkways and a driveway in just over an hour — both describing him as attentive and hardworking. On the platform itself, the company is rated 4.9 stars from 40 ratings and says it has been hired 36 times. There's nothing in the written record to raise a concern — every review is positive, and the pattern holds across both the bigger roofing jobs and the smaller side work. This is a fit for anyone from a full roof replacement to a same-day exterior fix, on a track record that consistently name-checks fast communication and estimates customers felt were straightforward. Worth confirming current availability and getting the roofing-specific timeline in writing before booking, since the reviews describing that work are the older ones on file.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from JA General Construction LLC. 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
We had a great experience working with Juan on a siding repair project. He was extremely responsive right from the start, provided a very fair quote, and was able to begin the project the very next day to help us hit our timeline. His craftsmanship is top-notch and professional, and he went above and beyond by taking extra steps to ensure the repaired area is fully protected against future water damage. I highly recommend Juan and will definitely be hiring him again for future projects!
This company works so hard when clearing snow. I'm very grateful for their hard work and professionalism. I can't believe they shoveled well over a foot of snow and cleared 2 long walkways and a driveway in a little more than an hour. I'll hire them again. I highly recommend them. The photos only show a third of what they actually did.
Juan was very responsive and came on the weekend to help us hang some holiday lights. He was attentive to details, kind and hardworking. Would hire again!!!
Juan was a pleasure to work with. He showed up promptly and assessed the work that needed to be done and provided a competitive quote. He even made clever recommendations on how it should be fixed and came in with his team and resolved my roof issue. I would definitely recommend Juan and his team for any roof or siding work!
Juan was the one I interacted most of the time. He was a pleasure to talk to. We hired him for roof repair and partial roof replacement. His estimate was very clear and detailed (estimates from others were either incomplete or unreasonably high). No hidden fees. Once we booked the date for the job, Juan arrived with the team and got right into it. His team completed the work within one day, took all the debris with them and left the house area clean. There was one thing I needed help with as we did not have a tall ladder, he had no problem to assist us. Having a positive experience with Juan, I went back to him with another job. Again, Juan is polite and hard working. Definitely recommend him!
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1 change recorded — last scanned Sep 8, 2026.
Answers in a storm5.0
Free repairs, even a decade later5.0
Honest guidance5.0
Detailed craftsmanship5.0