HVAC services in New Hampshire

Long, severe winters where a heating failure can freeze pipes in hours. Furnaces, boilers and propane or oil systems are common in rural areas.

New Hampshire doesn't license HVAC contractors statewide, but gas fitters must be licensed through the Mechanical Licensing Board, and cities like Manchester and Nashua issue building and mechanical permits.

Winters are long and cold, and heating oil and propane remain common, especially outside the cities. Older mill-city housing in Manchester and Nashua relies on gas and oil boilers, and cold-climate heat pumps are increasingly used to add cooling and cut fuel use.

Summers are short and mild, with a few humid weeks in July and August. A fall boiler or furnace check before the first cold snap is the most valuable visit of the year.