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MJA Plumbing & Heating Inc says on its website that it advertises 24/7 emergency service and has been in business 30 years. The company describes its work as a wide scope of HVAC projects for residential, commercial and industrial customers in New Hampshire and Massachusetts. Its New Hampshire HVAC licence, number MBE1600905, held in the name MJA Plumbing & Heating, INC, is active on the state registry. A 2021 Google customer said the owners were professional and took time to explain everything.
The owners are so professional and took time to explain everything. We highly recommend them.
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1 change recorded — last scanned Oct 18, 2026.
Typical your area range for this kind of work, from regional averages — not a quote from MJA Plumbing & Heating 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
Cooling layout that preserves storage space5.0
Knob and tube wiring removal5.0
Whole-house AC failure fixed by phone troubleshooting3.1
33 years in businessNot yet rated
