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DF Plumbing & Mechanical is a Belchertown plumbing and heating contractor working across central and western Massachusetts, with boiler, water heater, gas piping and hydronic heating work on its site. The state registry shows plumber licence 11406-PL-M, held by David Fredenburgh, as active. It holds 4.7 stars from 31 Google ratings. Water heaters are a common job, and its written reviews run from 2021 to 2025. In an October 2025 review, a customer whose geothermal water heater compressor failed said Dean talked them through bypassing the heat pump mode for the weekend, then had a crew install a new hybrid water heater that Tuesday and haul the old one away. In a February 2025 review, a customer said a tankless water heater went in quickly and Dean helped explain their situation to a well water testing lab next door. Heating and larger jobs show up too. In a March 2023 review, a customer said Rob's team replaced their gas boiler on time and within budget, and in November 2021 a customer building a new house said the plumbing on their build was stress free. In an October 2021 review, a customer said the final bill for a well sediment filter came in at the low end of the phone estimate.
“Avery Dubois of Belchertown-based DF Plumbing & Mechanical installs plumbing Nov. 1 inside the former state hospital building, which will be transformed into condominiums in the Village Hill neighborhood of Northampton.”
I had a Geothermal hot water heater that the compressor went on. After calling 8 companies and able to get anyone to speak with me, I stopped in at DF Plumbing and Dean talked me through bypassing the Heat Pump mode so that I could have hot water for the weekend. When I returned home and performed the bypass then e-mailed pictures to Dean so that he could provide me with the correct hot water heater for my needs then confirmed with me that I did have hot water and that he did not need to make an emergency home visit. Dean then provided me with an estimate for a new Hybrid Hot Water Heater. On Monday Dean called to advise that he would have a crew at my home on Tuesday to install the new hot water heater. On Tuesday Dean called to advise that his crew would be at my home within an hour. His crew was so awesome. Their work was neat, they cleaned up after they were done and did some of the nicest work I have seen and made sure all pipes were secured, that the water was on and running properly and took away my old unit. These people are my new best friends and I would use DF Plumbing and recommend the any day of the week. This organization is just the best and awesome. I give them 10 stars out of 5. They are that good.
DF Plumbing. Always reasonably priced, friendly, and consistent with our plumbing needs. I recently had a countertop installed but wanted the same sink. Richie removed it and put it back, replacing a few parts along the way. THANKS DF PLUMBING!
DF Plumbing have helped with a few of our plumbing needs over the last couple of years. They have always been quick to respond and are very knowledgeable. The most recent experience was particularly amazing. Not only were they able to squeeze our job in a few days earlier than expected, the workers who came, Joe & Sam, were outstanding: knowledgeable, outgoing, quick, helpful & all with a positive attitude!! We'll definitely be calling them again for any future needs.
Needed a new tankless water heater and DF Plumbing installed very quickly and efficiently. Answered all questions we had and Dean went above and beyond by helping explain our situation to Quabbin Analytics next store when I went in person to inquire about well water testing. Highly recommend!
Great Service from Rob and his team. The job was covered by our manufacturer warranty and DF was on site within a few hours of our call. We will be back again.
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1 change recorded — last scanned Sep 9, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from D F Plumbing & Mechanical. 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
Languages
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Mass Save weatherization4.9
Next-day furnace install4.6
