New England Heat Pump Co.

New England Heat Pump Co. is an Arlington shop built around one thing: Mitsubishi ductless mini-splits, installed, maintained and repaired across Massachusetts and southern New Hampshire. The company says it's family-operated with 20 years in business, and it holds Mitsubishi's Diamond Contractor certification, the manufacturer's top factory-trained tier. The reviews are unusually consistent for a company this size — 42 on Google, all five stars, with owner Jimmy (also called Jim or James) named directly in nearly every one. The recurring theme is a same-day install: crews commonly finish a full mini-split system, sometimes alongside an electric panel upgrade, in a single day, and several customers describe Jimmy returning afterward to walk through how the system works. A January 2026 review recalls a Somerville homeowner who'd collected four quotes elsewhere — some from installers using what they called sketchy sales tactics — before choosing this company instead. An early-2025 review describes finally replacing an in-wall AC unit that had been rattling and held together with duct tape for years. Beyond the install itself, customers mention the company handling Mass Save rebate paperwork as part of the job. A 2025 Reddit thread rounding up Boston-area heat pump installers described it as a small, four-person operation — a detail that lines up with the personal, same-owner-every-time feel running through the reviews. There's no negative pattern to flag here: the last six months brought 23 reviews and zero complaints, and the record before that reads the same way back through 2025. Its Massachusetts Home Improvement Contractor registration number is listed on its own website rather than verified against the state registry, so treat that as the company's claim rather than a confirmed status. This is a strong fit for anyone already set on a Mitsubishi ductless system — it's what the shop is built around — less so for someone still comparing brands or needing a larger crew for a big commercial job. Worth asking about current scheduling given the small team size reviewers describe.