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Water heaters are the job J. Davis Plumbing and Heating keeps getting hired for. In a November 2025 Angi review, a customer said Jim replaced an old, leaking water heater with a new State unit and left the basement with no sign that work had been done there; another that month said a job took four hours for $2,500. In April 2026, a Google reviewer praised the clean, efficient relocation of a tankless water heater. Jimmy Davis's Massachusetts plumber licence, 19954-PL-J, is active on the state registry. Angi lists the business as veteran-owned with 16 years of experience, and it holds a 5.0 from 18 Angi ratings and a 5.0 from eight on Google. The April 2026 Google reviews cover more than water heaters. One homeowner whose original contractor walked away in the middle of a bathroom remodel said he stepped in, repiped the bathroom for the new fixtures, replaced the water heater and found a leak. Another called on a Saturday about a leak in the ceiling and said he came right out and fixed it. A third said he installed a new water heater, serviced the furnace at a reasonable price and calls from time to time to check on his work.
Great job relocating the tankless water heater. Clean work, efficient setup, and everything runs perfectly. Highly recommend.
My original contractor bailed in the middle of a bathroom remodel, and he stepped in and saved the day. Repiped the bathroom perfectly for the new fixtures, replaced the water heater, and found a restroom leak. You can tell he knows what he’s doing—our bathroom looks awesome!
Reliable, does great work and complete in a timely manner. I highly recommend
Very Professional. Called on a Saturday, for a leak in my ceiling, came right out and fixed it. Guy is a lifesaver!
Justin was great to work with and very responsive. To date, I've contacted Justin for a number of issues I was having with a leak in my kitchen sink and a clog in my bathroom. He works quickly and efficiently. He has fair pricing and I would definitely recommend him to others.
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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 8, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from J. DAVIS PLUMBING AND HEATING LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Transparent diagnostics5.0
Same-day and weekend calls for burst pipes and lost heat5.0
Broad plumbing and HVAC range5.0
Repeat, years-long customers5.0
Water heater and boiler installs5.0
72 years in business2.6
