JN Service HVAC & Plumbing

JN Service HVAC & Plumbing works out of Providence Highway in Walpole, and its reviews cluster hard around one job: the multi-day heat pump conversion. Across 220 Google ratings averaging 4.7 stars, the recurring story is a homeowner swapping an old furnace or window units for a heat pump system, with an installer — most often Marcelo — walking them through it. The installs read as careful rather than rushed: reviewers describe a tight attic space and multiple return trips to get a system dialed in correctly, and one two-week heat pump upgrade is described as closely managed by the company's founder from quote to completion. Emergency calls get similar marks — one leaking pipe was diagnosed and fixed the same day it was reported, with the customer kept informed throughout. The technicians named most across dozens of five-star reviews — Marcelo, Wendel, Cauet, and Gabriel Rodrigues — show up for both installation and routine AC and furnace repair. The plumbing side of the business draws a thinner and rougher record. One customer says the company charged $200 for a technician to look at a sewage ejector pump without opening its lid, then quoted $3,100 to replace it — a price the customer called excessive before fixing it themselves over a weekend. In a 2025 review, another customer says a deposit for a heat pump wasn't refunded within the state's required cancellation window and had to go to court to get it back. Scheduling is an occasional sore point too: one recent review describes a two-hour wait before learning, only after calling the company, that no technician was coming; a review from late 2024 describes repeated late arrivals across multiple appointments without a call. For heat pump conversions and general AC or furnace repair, the volume and detail of praise stand out locally. Anyone booking plumbing work, or a job with a tight scheduling window, would do well to get a firm quote and a confirmed arrival time in writing first.