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3D PLUMBING & HEATING INC
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Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from DDM Heating & Air Conditioning Inc.. 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
DDM Heating & Air Conditioning Inc. is a Leominster, MA heating and air conditioning company whose Massachusetts HVAC license is active on the state registry. Reviews on file run from 2021 to 2024 and are mixed. A 2024 review called it "the best," citing quality service and an easy scheduling option, while another 2024 review said the front desk was short with them and rushed the call. A 2023 review said customer service was terrible and that the technician was wrong, according to a second opinion from another company. It holds an A+ Better Business Bureau rating; given the mixed reports on phone service, it's worth asking how your call and appointment will be handled.
Front desk women was very short with me and rushed my phone call along.
DDM is the best! Quality service every time. Their scheduling option is awesome.
Terrible customer service, tech was wrong (after a second opinion from another company).
Very please
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2 changes recorded — last scanned Sep 22, 2026.
4.1
4.0
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