The Gas Connection LLC

Three companies looked at a three-year-old Trane system and gave up — two could not fix it and the third declined to quote at all. The Gas Connection found the problem, ordered the right part and got it running, and the April 2025 customer who told that story said the whole thing cost less than what they had already spent on the companies that could not. That is the recurring shape here: the Nashua shop people call after someone else has struck out. A February 2025 reviewer had been quoted $3,300 by another company to repair a mini-split and says The Gas Connection turned up on time and fixed it for 87% less. In February 2026, with temperatures in single digits, another customer credited Dave, Tracy and Jason with getting them out of a tough spot, and mentioned a bigger job a few years earlier swapping a multi-unit building from oil to gas. Its New Hampshire HVAC licence, MBE1000491, is active in the state registry under the company's name. The BBB grades it A+ without accrediting it and records the business as started in 1980. The company says its technicians are NATE-certified and that it is a Trane Comfort Specialist and a member of ACCA and PHCC. The work spans heating, cooling and plumbing — central AC and boiler replacements, water heaters, mini-splits, a gas stove, and in one 2022 account an entire HVAC system redesigned after a remodel had left it not working properly. Speed on the phone comes up repeatedly: a 2023 caller who left a message said they got a call back within minutes, a fast appointment and transparent pricing. Three accounts run the other way, and one is worth reading closely. In April 2024 a ten-year customer who had previously left five stars dropped to one: their furnace had failed repeatedly, and they say the owner arrived already agitated, was disrespectful in their home, and told them he would no longer do business with them — leaving them, by their account, with a heater and water heater that did not work. They were careful to add that the technicians and the office staff had always been good to them. Separately, a 2021 caller said a promised estimate call-back never came, and a 2023 reviewer complained about a driver's behaviour on the road. For a heating or cooling problem another company has already failed to solve, this shop has an unusual number of customers saying exactly that. Get the diagnosis and the price in writing, and if a system keeps failing, settle early what happens next.