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Ken Doherty Plumbing & Heating is a Malden, Massachusetts plumbing and heating contractor with 38 years of experience. The business profile lists plumbing and heating repair, water-heater installs, emergency service, free estimates, warranties, and Massachusetts trade license 10980-PL-M. Customers consistently praise honest, professional work. Reviews describe tankless-water-heater installation, plumbing and furnace work, gas-boiler repair, and water-heater repair; one customer says Ken identified a leaking valve instead of recommending an unnecessary boiler replacement. The available reviews are older, from 2015 through 2021, and the business lists a trade license expiring May 1, 2028. One review notes Ken was a few minutes late, though the customer said the repair was worth it. Ken appears suited to homeowners needing plumbing, heating, boiler, or water-heater work. Confirm current insurance, written scope, pricing, availability, and warranty terms before booking.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Ken Doherty Plumbing & Heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
Ken is the best!!! Top quality installationâ ¦very professionalâ ¦honest and sincere. Ken has performed many tasks for me in the past and has never ceased to amaze me or let me down. If you want a job done right, you canâ  t go wrong with Ken!!!
Ken was a great person to work with and provided excellent service! I highly recommend him for any plumbing or furnace/thermostat work. I will definitely be working with him again.
Ken was amazing! He was communicative, friendly, helpful, and did high-quality work. Can't say enough good things about him!
Professional, honest and reasonable
Great job. Was able to repair my hot water heater instead of automatically pushing for a replacement. Great to find an honest man. Thank you Ken.
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2 changes recorded — last scanned Sep 8, 2026.
Transparent diagnostics5.0
Honest, no-upsell service5.0
Rapid response5.0
Repeat, years-long customers5.0
Honest pricing5.0
