Proto Home Service Plumbing & HVAC

Proto Home Service Plumbing & HVAC works out of Milton, and the calls that define them are the middle-of-the-night kind: a boiler that quits on a cold Sunday, a burst pipe, a water heater that won't wait until morning. The company says its team has served Greater Boston homeowners for more than 40 years. The reviews from the past few months back up the speed. One customer had a dead boiler diagnosed and fixed the same afternoon it stopped heating on a cold Sunday; another got a burst-pipe leak and a broken heating system repaired after other companies couldn't fix it; a third called in the morning for a new water heater and had one installed by noon. All six reviews logged in the last six months are positive, with no complaints among them. On Google, the business holds a 5.0 rating across 29 ratings. Its Better Business Bureau profile carries an A+ grade with accredited status since 2021, and Massachusetts records show its plumbing license, 4752-PL-C, is active; BBB also has licenses on file for the business with the state's Board of Building Regulations and Standards and the Department of Fire Services. Worth asking about before booking: the "40+ years" claim doesn't line up with BBB's own records, which track the business as 9 years old, dating to a 2017 start — and the review history itself only spans 2025 into 2026. BBB's profile also describes the business as serving Stoughton, MA, even though its listed address, and the address other directories use, is in Milton. Neither point casts doubt on the plumbing and HVAC work itself, but both are worth a quick question before scheduling. For a homeowner with a dead heating system or a leak that won't stop, this is a same-day call backed by a clean recent run of reviews — just confirm how long the company has actually operated under this name and which town it's really serving before booking.