Nicholson Plumbing, Electrical, Heating, and Air Conditioning

Nicholson Plumbing, Electrical, Heating, and Air Conditioning runs out of Holliston and covers the Metrowest suburbs with a large field team doing HVAC service, plumbing repair and electrical work. It is one of the busiest home-services outfits in the area: 615 reviews on file going back to 2016, and 4.8 stars from 3,134 Google ratings. The praise is remarkably consistent and it attaches to individual technicians. Homeowners name Luis Andrade again and again for AC diagnostics — one July 2026 customer had a broken unit fixed in under an hour with the parts already on the truck and the cause explained; another was walked through mini-split maintenance tips. A July 2026 reviewer described a water heater emergency where the technician drove to the supply house on a Saturday, found the replacement damaged, and came back on his scheduled day off to finish. Others describe same-day response in heat waves, capacitor repairs inside 20 minutes, tidy installs, and clear explanations of the options before work starts. The complaints are just as specific, and they cluster in two places: price and scheduling. A July 2026 customer was quoted $856 to install a dishwasher that was already unhooked and pulled out, after paying a $99 diagnostic fee. A June 2026 reviewer was quoted $597 to swap a copper shut-off valve, then offered a senior discount and a manager's discount down to $457.45. Another July 2026 reviewer said a faulty thermostat and dirty outdoor unit were presented as a major system failure needing full replacement. On scheduling, a long-time maintenance-plan member had a spring appointment cancelled the day before and was offered October; an electrical appointment was cancelled five minutes before the window with no reschedule for six weeks; and a July 2026 reviewer had waited three weeks for a mini-split compressor the company could not locate. A few reviewers split the difference explicitly — five stars for the technician, frustration with the office. Recent volume tells the same story at scale: 170 reviews in the last six months, 14 of them negative, and a weighted sentiment of 0.33 that sits well below the headline star average. This is a reasonable call for homeowners who want a large outfit with real depth of staffing for HVAC and plumbing service, especially in an emergency. Get the quote in writing and compare it before approving work, ask what the diagnostic fee covers, and confirm parts availability and the actual appointment window before committing.