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Verified record
Green Hill Engineering's website names Sturbridge in its stated service area. A 2021 Google customer said they had been waiting over a year for him to do his job and that he was impossible to get ahold of.
“He had received quotes from Hill Engineering of $35,000 for the plumbing upgrade and $47,000 for the ventilation system but was still seeking one more quote as the cost was higher than anticipated.”
Worst experience with a "professional" ever. Have been waiting for over a year for him to do his job, and impossible to get ahold of
Service area
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1 change recorded — last scanned Oct 29, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Green Hill Engineering. 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
State-verified HVAC license3.0
