Furnace Repair Services in New Hampshire

No Heat Blowing

If your furnace is on but not giving off any heat, you may have a clogged or dirty air filter. Typically, you’d want to change your air filter every 30 to 60 days, but that’s also dependent on many other factors in your home. If you smoke, have pets, or suffer from allergies, you may need to change your filter on a specific schedule. Since it gets cold in our neck of the woods, we all run our heat more often than other areas of the country, which leads to the filter getting clogged quicker. If changing the filter doesn’t fix this issue, it’s time to call Heritage for help.

Drastic Temperature Changes

Any drastic temperature changes while running your furnace are cause for alarm. You may suddenly feel cold air vs. hot air, even if it’s been warm in the room for a while in some situations. In this case, turn off your furnace completely, wait about five minutes, then turn it back on again four or five degrees higher than what you had the temperature set to. See if that does the trick. If not, turn the furnace off and change your thermostat batteries. If neither of these tips works to get your heat working properly, it’s another reason to call our experts in.

Pilot Light Failure

If your home furnace does not turn on at all, that is commonly an issue with your pilot light. If you have an older furnace in your home, pay attention to your pilot light and if it remains lit. If the pilot light goes out and wont re-light when you reset the furnace, the system won’t turn on at all. A pilot light essentially stays lit 24/7/365 days a year; it’s a waste of fuel and could cost hundreds of dollars in fuel costs over the course of a year. An electronic ignition replaces older pilot light technology and saves you money.

Common signs include uneven heating throughout your home, unusual noises such as banging, rattling, or squealing, frequent cycling on and off, a sudden increase in heating bills, yellow or flickering pilot light instead of a steady blue flame, and cold air blowing from vents when the thermostat is set to heat. If you notice any of these issues, contact Heritage for a furnace inspection.

Heritage recommends annual furnace maintenance before the heating season begins. Professional maintenance includes inspecting and cleaning key components, checking safety controls, testing efficiency, and identifying small issues before they become expensive repairs. Regular maintenance helps extend the life of your furnace and keeps it running safely through New Hampshire winters.

Yes. Heritage services and repairs all major furnace brands and types, including gas furnaces, oil furnaces, and electric furnaces. Our licensed HVAC technicians carry common replacement parts and have the training to diagnose and repair a wide range of furnace issues.

If your furnace is more than 15 years old, requires frequent repairs, or is no longer heating your home efficiently, replacement may be the more cost-effective option. Heritage will inspect your furnace, explain the issue, and provide honest recommendations so you can make an informed decision. We never push for replacement when a repair will solve the problem.

Yes. A furnace failure during a New Hampshire winter is a serious situation, so Heritage provides emergency heating repair services. If your furnace stops working or you suspect a safety issue such as a gas leak or carbon monoxide concern, contact Heritage immediately for priority service.