Seaside Gas Service, Inc

Seaside Gas Service, Inc works out of 42 Commonwealth Ave in South Yarmouth and is hired across the mid-Cape for heating, cooling and plumbing — boilers and furnaces, ductless mini-splits, water heaters, gas lines and standby generators. Reviewers name the same handful of people over and over: Kevin, Casey, Christian, Cassie, Brian, Tim and Damian. The track record is deep and recent. The company's Google profile carries 350 ratings, and the reviews on file run from 2022 to 2026 with 20 posted in the last six months. What customers describe most consistently is speed when something has failed: after the 2026 blizzard left one house without power for two and a half days and the boiler dead at 38 degrees inside, a technician was there and everything was fixed within two hours; another homeowner with a dead heating zone had it diagnosed and repaired within half an hour of calling. The work itself spans more than the HVAC label suggests. Recent reviewers describe a mini-split installation where the company handled the MassSave rebate paperwork, a Chatham boiler replacement whose piping one customer said other plumbers had told them could not be done, an outdoor shower plus kitchen faucet and shower-head replacement, a hot water heater with a chimney liner brought up to code, and gas run to a stove. One April 2026 reviewer says their family has used the company for more than 25 years across two complete HVAC systems. Locally, neighbours on Nextdoor in Yarmouth Port and Centerville recommended the company for heating and plumbing in late 2025 and spring 2026, and two of them said they hold maintenance agreements covering a water heater and boiler that come with annual service and priority scheduling in an emergency. A Reddit commenter on r/CapeCod recommended them back in 2022 and suggested asking for Brian and the crew. Worth asking about before you book: scheduling reliability. A 2★ review from October 2024 says the customer was given an 8am-to-12pm window, called twice that day and was told they were next and would get a call back, got no call, and the crew arrived at 12:30 with no explanation. It is the one clearly negative account on file and nothing in the recent six months repeats it — but it is the specific thing to confirm when you book a window. One caveat on the headline number: a 5-star average across 350 ratings sits alongside that surviving 2★ review, so read the average as rounded rather than literally unanimous. The written reviews themselves look genuine rather than manufactured — they vary widely in length, credit different named staff across four years, itemise specific equipment and jobs, and include a low-star complaint that was left standing.