Coastal Mechanical

Coastal Mechanical works out of South Yarmouth and covers Cape Cod, and the thing homeowners keep noting is that one company shows up for all of it — heating and cooling, plumbing, and electrical. Its Google profile carries a 5.0 average across 458 ratings. Mini-split and air-conditioning installations are what the recent write-ups return to most. A homeowner having mini splits put into a Harwich home called every step pleasant, from the quote through the installation crew; another had them installed in a Truro condo and said the company delivered exactly what it promised at a competitive price. A salon owner said installer Kevin was prompt, efficient and clearly knew his craft, and that the whole process was seamless. Reviewers also name Brendan, Jeff, Jon Mello, David Silva and Michael individually, usually for explaining what they were doing and cleaning up after themselves. Speed on breakdowns comes up repeatedly. One customer's AC died on a 97-degree Sunday; a voicemail drew a same-day text and Brendan had it running by Monday. In a December 2025 review, a homeowner who called after hours about a dead water heater had someone there at 8 the next morning. Another December 2025 customer worked with maintenance manager Rob to get a clogged heat exchanger replaced under warranty rather than buying a whole new furnace for a 101-year-old relative. Several describe the same consultative streak — thermostat zoning laid out with diagrams and walkthroughs so switches and fixtures landed where the owners wanted them, and a whole-home dehumidification solution built around the house. The complaints are few but specific, and worth raising up front. A February 2026 customer paid for two second-floor zones, had the air handler surge from the beginning, and after multiple return visits was left with one zone and the extra ducting and dampers still in place. A March 2026 customer on a maintenance contract said the two technicians who serviced their furnace and air conditioner showed no interest in the lack of heat in a front bedroom and bathroom. In a November 2025 review, someone objected to a $185-an-hour charge for the office to source two $100 parts available at local supply houses, and an October 2025 customer described a billing misunderstanding that the staff then corrected to their satisfaction. For routine service, mini splits and multi-trade work on the Cape, this is a deep and current track record. If your job is a multi-zone install, pin down in writing what counts as complete and commissioned, and what happens if a zone does not perform.