Efficiency Plumbing, Heating & Air

Efficiency Plumbing, Heating & Air runs out of Hanover, covering the full run of plumbing, heating, and air-conditioning calls across the South Shore. The company's own site says it's served the area since 2015, though a separate banner on the same site claims 'over 15 years' in business — the two dates don't line up, so treat 'since 2015' as the more specific of the company's own claims. Reviewers keep naming the same handful of technicians — Mike, Carlos, and Carlo — which points to a small, stable crew rather than a rotating cast. The last six months are where the story gets concrete: 17 Google reviews, every one of them five stars. A furnace got replaced with the crew on time, answering questions, and cleaning up before they left. An AC compressor, air handler, and the line connecting them were swapped out in a job the customer described as clean and professional. When mice had nested inside a condenser and chewed through its wiring, a technician and a trainee cleaned it out and got the unit running normally again. On the first 90-degree weekend of the year, a same-day call for a dead AC ended with the unit diagnosed and repaired within the promised window. One customer who manages more than 30 rental properties plus a Boston office site relies on them as a standing vendor — the kind of repeat commercial business that's hard to fake. Before booking, it's worth asking about that founding-date mismatch directly, since the company's own marketing can't agree on how long it's actually been around. It's also worth knowing that presence varies a lot by platform: Google shows a deep, active history — 142 ratings at 4.9 stars, 109 reviews logged since 2022 — while smaller directories like mylocalservices.com list zero reviews for the same business, so Google is clearly where its reputation actually lives. Efficiency is a reasonable call for the kind of job that can't wait — a furnace out in winter, an AC dead on the hottest day of the year — and for routine plumbing work like a water heater or a disposal swap. The reviews describe a crew that shows up when it says it will and explains what it's doing; a nine-year run that's almost entirely five-star, with a rare exception, backs that up. Confirm scope and price up front for anything beyond a standard repair, since the volume of positive detail here comes overwhelmingly from routine service and repair calls rather than larger installation projects.