Pinnacle Piping and Service

Pinnacle Piping and Service is the Dorchester HVAC shop currently sitting at 4.6 stars on Google, and every one of its seven most recent reviews is a five. The company says it's been family-owned and operating out of Boston since 2003, staffing certified Local 537 technicians for HVAC design, fabrication, installation, and service across commercial, educational, healthcare, and pharmaceutical clients as well as residential calls. Over the past six months, reviewers describe a technician tracing a stubborn temperature swing to a clogged filter and clearing it, a crew dismantling and hauling off an old AC unit in a little over an hour during a heat wave, and a duct and vent cleaning wrapped up in two hours flat. One customer singled out a thermostat installation where the tech walked them through the new system before leaving. None of the recent reviews mention a callback or an unresolved problem. The number backing that 4.6★ average is still small — 10 Google ratings total — so it reflects a run of recent, detailed experiences rather than a long public track record on that platform. Its BBB file separately lists an A+ rating and 23 years in business, but no accreditation and no logged complaints or reviews to check the Google numbers against. For a routine AC repair, duct job, or thermostat swap, the last half-year of reviews points to prompt work with a clear explanation of what got fixed. Given how thin the review count still is, it's worth asking for a couple of recent local references before signing on for anything bigger than routine maintenance.