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In a 2021 review, a customer said Zach and his younger brothers had installed a combi boiler in their old house the year before, used good parts, and removed the old equipment and some unused gas pipes in the attic at no charge. In a 2020 review, a customer said they had their whole heating and cooling system replaced and that Zach was very professional. In a 2019 review, a customer said Zach replaced an old oil-fired water heater with an electric one and took care of the details, including scheduling the electrician and removing obsolete equipment. Another 2019 review said Zach called right back, came over the next day to discuss options, and installed an electric hybrid hot water heater two days later. In a 2019 review, a customer whose water heater sprung a leak said Zach had a new one up and running within hours, at a fair price. In a 2019 review, a customer whose furnace died said Zach took measurements, then came back with a new unit and installed it. In another 2019 review, a customer whose older furnace stopped working said Zach responded quickly, was honest, and communicated well throughout the repair. In a 2019 review of a leaking water heater replacement, the customer said the tech was on site by 3:30PM after a 9:00AM request and the work took an hour or so, but called the price pretty high and said the new heater was a 6-year warranty model they were never asked about. In a 2020 review, a customer said Zach and crew installed three AC mini split units, but he never returned to complete a gas line for a heater and offered to give the money back but never did. In a 2019 review, a customer who had Zach install a Navien tankless water heater said the work was very good, but later texts were blown off and no one came by. Its plumber license 4361-PL-C is expired on the state registry.
Zach and his younger brothers installed a combi boiler in my old house last year. The job was well done and they used good parts. The unit worked very well this winter and I am pleased with the result. They also remove all the old equipment and even remove some unused gas pipes on my attic at no charge.
I had my whole heating and cooling system replaced by them and it came out wonderful. Zach was great, very professional and did a fantastic job! I would highly recommend them.
STAY AWAY!!!! I hired Zach and crew to install three AC mini split units and a gas line for a heater. AC install went fine, BUT he never returned to complete the gas line. Did not respond to my calls, texting excuse after excuse. Eventually offered to give me my money back, but never did! PLEASE DO NOT HIRE!
They called me within minutes and came immediately , helped solving the problem , great service.
Great knowledge and great service. Very complete in the work and was willing to explain alternatives.
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2 changes recorded — last scanned Sep 30, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Cardinal Plumbing Heating and AC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
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