Verified record
S.D.H. Plumbing & Heating is a Waltham-based plumbing and heating company whose Angi and HomeAdvisor profiles each show 4.7/5 from 85 reviews, plus emergency service, warranties, and 12 years of experience. The listed work centers on plumbing, heating, and water-heater installation and repair. The written testimonials are older, running from October 2021 through December 2023, but consistently positive. A December 2023 customer described furnace-plumbing work that restored heat and praised the technician's professionalism; other customers mentioned a garbage-disposal replacement, water-heater installations, quick drain service, and clean-up. BBB gives the Waltham profile an A+ grade and says it is not accredited; BBB also lists Massachusetts plumbing license 16465, which is a directory claim rather than a state-registry verification. Before booking, confirm the current license details, the exact scope of the warranty, and availability for the type of plumbing or heating job you need.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from S.D.H Plumbing & Heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
“At S.D.H. Plumbing & Heating, we have a combined 200 years of experience in the field and have been installing heating and cooling systems in your Waltham, MA, neighborhood.”
“At S.D.H. Plumbing and Heating, you can count on us for emergency plumbing & heating repairs in Middlesex County.”
Thank you Greg for fixing the plumbing to our furnace ! We have heat so happy! You were very professional and great working skills ! You took the time to explain the problem greatly appreciated and then fixed it !
Excellent service ,friendly and reasonable. Replaced a tenants garbage disposal. Will definitely hire this company again for all of our needs.
These guys arrived early, they were super friendly and efficient. They were also very funny. They got the job done, answered any of her questions, and cleaned up. I would definitely recommend them.
Quick and thorough.
I have had Max and Jimmy before when they installed my sink in bathroom. I have had porter plumbing for years and they are extremely polite and conscientious.
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1 change 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
