GNK Plumbing & Heating

GNK Plumbing & Heating holds 4.9 stars from 282 Google ratings and 4.9 stars from 221 Thumbtack ratings, and the jobs people hire it for are everyday ones: faucets, toilets, water heaters, leaks and heating parts. A customer with a leak in their baseboard heating said Jean came out the very same day, found the issue quickly and made sure everything was tight, clean and leak-free before he left. A customer who hired Jean to replace a kitchen faucet said he showed up within a day of being contacted, worked through a few minor problems with the faucet, and also noticed and replaced a leaky outside spigot turn-off valve in the basement. That customer said another larger plumbing company had quoted a price 3x more for the same job. A customer said Jean came and found no leaks, then checked the plumbing and changed a part in the toilet so the water would stop running all day and night. In a 2025 review, a customer who woke on a Saturday to a shower faucet that went from dripping to pouring said they called no less than 10 plumbers, and Jean came within 30 minutes with supplies and offered multiple options. A 2026 customer who had a toilet replaced said other plumbers in the area had quoted $1000 more than what they ended up paying GNK. A 2024 customer met John Koss at a Peabody plumbing and heating supply store, hired him to replace a 37-year-old leaky expansion tank, and then asked him to replace all the old valves and the circulator; that 2024 customer said he returned promptly twice to fix small leaks. A customer said Jean came to find and fix a leak from the ceiling and left a huge hole in the living room ceiling, which that customer felt was unnecessary. A 2024 HomeAdvisor customer who hired him to purge air from the system and change the expansion tank said he could not get the tank off, dented the side of a dryer while forcing it out, and spilled dirty boiler water on two bathroom rugs. That 2024 customer also said he blew the transformer and then charged for changing it.