1 / 5
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 ↗
Highlights
- Property-manager trusted — a reviewer's management company uses them regularly with no complaints
- Billing dispute — a Feb. 2026 review alleges a $4K charge after a paid invoice
- Incorrect warranty info — a Feb. 2026 review says an expired-warranty claim was false
Blue Hills Mechanical is a Randolph-based residential and commercial HVAC contractor that also offers electrical services, operating as part of the Cape Cod Mechanical Systems family of companies. The company says that group dates to 1989 with over 37 years of HVAC and electrical experience, and lists itself as a Diamond Fujitsu dealer and an Elite Heil dealer. Its stated service area stretches across a wide swath of eastern Massachusetts, from Randolph and Milton to Braintree, Hingham, Canton, and Plymouth. The written record is small — just four Google reviews — and split. Two five-star reviews, both from late 2025, are positive: one comes from someone whose property management company uses Blue Hills regularly, calling them knowledgeable with no complaints after repairs; the other calls the company service-oriented, flexible, and affordable, without describing a specific job. The two most recent reviews, both from February 2026, describe real problems. One customer says they paid a 'final' invoice for an oil-to-gas boiler conversion in full, only to be billed an additional $4,000 months later over a subcontractor payment — a charge the customer says they confirmed directly with the subcontractors had already been paid. Another customer says they were told a water heater's warranty had expired, and only discovered after calling the manufacturer themselves that roughly two years of coverage remained, avoiding an unnecessary full replacement; the same visit included about $1,300 in furnace repairs. For a routine service call arranged through a property manager, the record here has been fine. But the two most recent, most detailed reviews raise real billing and disclosure concerns. Anyone hiring Blue Hills directly should get every cost in writing up front and independently verify any warranty or parts information before agreeing to a repair or replacement.
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 Blue Hills Mechanical. 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
Is this your business?Claim this page →