Furnace Maintenance in New Hampshire

Get Your Furnace Ready for Winter

New Hampshire winters put a furnace to work for months at a time. A yearly tune-up helps it start reliably, run safely and use fuel efficiently. Courtesy Heating and Cooling maintains natural gas and propane furnaces for homeowners across Southern and Seacoast New Hampshire.

Call (603) 777-7749 or use the Schedule An Appointment button above.

What Our Furnace Tune-Up Includes

Safety checks

• Inspect the heat exchanger area for visible cracks, corrosion or signs of overheating
• Check venting and flue connections, and inspect PVC vent and intake terminations on high-efficiency furnaces
• Test limit switches, pressure switches, rollout switches and flame sensing
• Check gas connections near the furnace for leaks

Performance checks

• Inspect and clean the burners and flame sensor
• Check the igniter and ignition sequence
• Check gas pressure and burner operation
• Inspect the blower motor and wheel; check belts on older units
• Check or replace the air filter
• Clear and test the condensate drain and trap on high-efficiency furnaces
• Test the thermostat and confirm the furnace cycles correctly

When we’re done, we explain what we found and recommend anything that needs attention. Nothing is repaired without your approval.

When to Schedule

Early fall is ideal, before the first cold snap and before the busiest part of the season. If you missed it, a tune-up during winter is still worthwhile, especially if the furnace is running more than usual or making new noises.

Signs Your Furnace Needs Attention

• It takes several tries to light or shuts off soon after starting
• Some rooms are colder than they used to be
• Rumbling, squealing or banging noises
• Higher gas or propane bills without a change in usage
• Water around the base of a high-efficiency furnace
• Your carbon monoxide alarm sounds. If it does, leave the home and call 911 or your gas utility first

Ask About $50 Off Maintenance

We currently offer $50 Off Maintenance. See our special offers page for details.

Between Visits

• Check the filter monthly during heating season and replace it when dirty.
• Keep the area around the furnace clear of storage, especially anything flammable.
• After snowstorms, clear snow from outside vent and intake pipes on high-efficiency furnaces.
• Test carbon monoxide and smoke alarms regularly.

Related Services

If your furnace isn’t working, see furnace repair. Considering a new furnace? See furnace installation or our furnaces page. For other heating systems, see heating maintenance.

Frequently Asked Questions

How often should a furnace be serviced?

Once a year is a good rule, ideally in early fall before heavy use.

Does furnace maintenance help with efficiency?

Clean burners, a clean filter and correct gas pressure help the furnace run as designed. A tune-up also catches worn parts before they fail.

Do you service propane furnaces?

Yes. We maintain both natural gas and propane furnaces.

Why does my high-efficiency furnace have a drain?

High-efficiency furnaces produce condensate that must drain away. A clogged trap or line can shut the furnace off, so we clean and test it during the tune-up.

Is there a maintenance discount?

Yes. We currently offer $50 Off Maintenance. See our special offers page for details.

Book Your Furnace Tune-Up

Call (603) 777-7749, book online, or contact us.