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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
- 14 reviews in the last 6 monthsNo negatives
- 9 customer photosOf completed work
Highlights
- Fast emergency response — technicians answer AC and heat failures within hours, nights and weekends
- Hands-on diagnosis — crawled attics and traced lines to solve issues other installers missed
- Bigger job coordination — whole-home heat pump systems finished in as little as three days
- One cancellation — a 2024 Thumbtack review described a job cancelled the morning of
Baystate Energy Services is a Plymouth HVAC company reviewers call when an air conditioner dies on the hottest night of the year — and Jay or Jason usually shows up the same day, sometimes the same evening. The company says it's served Plymouth and the South Shore since 1998 and describes itself as a Mitsubishi Electric Elite Diamond Contractor. The written reviews describe fast, hands-on troubleshooting more than anything else: in a July 2026 review, a technician spent a Friday night diagnosing a failed compressor, then returned to replace it and trace refrigerant lines through the attic, and several 2025 reviews describe the team responding within hours during summer heat waves, including one visit that continued despite a town-wide power outage. On bigger jobs, customers describe a whole-home heat pump system with mini splits and a ducted second-floor system finished in three days, and an oil-to-heat-pump conversion where the company visited twice with drawn plans before any contract was signed. When one customer faced quotes over $10,000 to replace a failed system, an October 2025 review said Baystate walked them through applying for Mass Save financial assistance instead. One dated account stands apart from the rest: a September 2024 Thumbtack review said the company cancelled the job the morning it was scheduled. For an HVAC emergency — especially during a heat wave or cold snap — or a bigger heat-pump conversion, this is a company with a deep, specific track record of showing up fast; confirm the appointment window a day ahead given the one cancellation on record.
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 Baystate Energy Services. 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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