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Verified record
License not state-verified. We could not confirm a current registration in the state registry. Insurance is self-reported. Look up in the official Massachusetts registry ↗
- Not rated by the BBB
- 19 work photos
Highlights
- Water heater service — 2026 next-day tankless water heater visit, everything explained
In a 2026 Google review, a customer had Keagan from Hennigan's Plumbing & Heating out to service a tankless water heater. Keagan came by the next day, that customer wrote, and took the time to explain everything while there. BuildZoom lists Massachusetts licence number 5007 for the business.
Read the comments
Most recent comments
- 5.0Mar 25, 2026
Just had Keagan out to service our tankless water heater. Came by next day, too! Took the time to explain everything while here. Definitely recommend!
— Stephen SpohnView on Google Reviews ↗
What does heating and cooling work cost in Greater Boston?
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Hennigan's Plumbing & Heating. 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
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