Verified record
O'Hara Heating and Cooling is a Worcester HVAC company led by owner Michael O'Hara, who does hands-on work himself according to reviewers who consistently name him directly. The company's own site says it was founded in 2020, though it also states 23 years in business elsewhere on the same site — HomeAdvisor separately lists six years of experience, which lines up with the 2020 founding date, so the 23-year figure looks like an inconsistency rather than a reliable number. The company holds an A- grade with the Better Business Bureau (not accredited) and lists EPA, Mitsubishi installation, MassSave, and sheet metal certifications on its own site. The nine reviews on file, all from 2023 and 2024, are consistently detailed and positive — eight five-star and one 4.5-star, with HomeAdvisor showing a 100% five-star distribution. Reviewers repeatedly describe Mike as punctual, thorough, and honest about recommendations rather than upselling; one review describes him replacing both the indoor and outdoor units of a system and giving straightforward advice throughout. A repeat customer describes hiring him for three or four separate jobs over time, always showing up on schedule and pricing competitively. With only nine written reviews, this is a fairly thin sample to judge by, though what's there is specific and consistent, and it's backed by real manufacturer and program certifications. Worth a call for a heat pump, central AC, or thermostat job in the Worcester area, with the certifications and BBB rating as useful complements to a still-small review count.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from O'Hara Heating and Cooling. 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
Mike did work in my area that had great reviews! He was on time, efficient, and on budget. We met made a plan, done. Everything works great. Thank you very much. Five stars from the get go !
Mike is extremely flexible and responsive in a time where the typical contractor is anything but these things. He came when he said he would and left nothing undone. I would work with Mike anytime.
Mike is very thorough and detailed - he does take care of the stuff very professionally - I would hire him again
He was prompt and always responsive. He does a professional job. - very thorough. I would definitely hire him again.
Exactly on time, quality work
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1 change recorded — last scanned Aug 24, 2026.
Fixed a code violation left by another contractor4.9
Water heaters4.9
Water heaters4.9
Water heaters4.7
Fast emergency response4.2
Quickly diagnoses AC and mini-split issues3.8