Furnace Tune-Up &
Maintenance Service
Family-owned since 1928, A.J. LeBlanc Heating provides annual furnace tune-ups across Southern NH. Our licensed technicians service gas, oil, and propane furnaces of all makes and models and catch problems before they become emergencies.
What's Included in a Furnace Tune-Up
A thorough annual tune-up keeps your furnace running efficiently, extends equipment life, and catches small issues before they become no-heat emergencies. Our licensed technicians service all gas, oil, and propane furnaces, any brand, any age.
- Inspect heat exchanger for cracks or damage
- Clean and inspect burners and ignition system
- Test safety controls and limit switches
- Check flue and venting for proper draft
- Measure temperature rise and airflow
- Inspect blower motor and belt (if applicable)
- Replace air filter (standard 1" filter)
- Check thermostat calibration and operation
- Test carbon monoxide levels
- Provide written report of findings
Why Annual Maintenance Makes Sense
Catch Problems Early
A cracked heat exchanger, failing igniter, or blocked flue found during a tune-up is a minor repair. Found during a no-heat call in January, it's an emergency. Annual service is the difference.
Lower Energy Bills
A dirty or poorly tuned furnace works harder than it needs to. Cleaning burners, checking airflow, and calibrating controls keeps efficiency where it should be.
Longer Equipment Life
Furnaces that are regularly maintained last significantly longer than those that aren't. Replacing a furnace costs thousands. Annual maintenance is a fraction of that and adds years to the equipment you already own.
Warranty Compliance
Most manufacturer warranties require annual professional maintenance. Keeping up with service protects your warranty coverage.
Furnace Service FAQ
How often should I have my furnace serviced?
Once a year, ideally in early fall before the heating season. This ensures your system is ready when you need it most and gives us time to order parts if something needs repair.
Do you service all furnace brands?
Yes. We service all major brands including Goodman, Rheem, Bosch, Amana, American Standard, Thermo Pride, Carrier, Lennox, Trane, and others, plus Beckett, Carlin, and Riello oil burners. If it's a residential furnace in Southern NH, we service it.
What if you find something wrong during the tune-up?
We'll explain what we found, show you if possible, and give you a repair estimate on the spot. You decide whether to proceed. We never perform repairs without your approval.
Do you offer annual maintenance?
Yes. We provide annual maintenance to keep your furnace running through the heating season. Ask about our Rate Lock program for discounted off-peak tune-up pricing when you schedule.
My furnace is old, is it worth servicing?
Usually yes. A tune-up can tell us whether your furnace has years of life left or whether replacement makes more sense. Either way, you have the information to make a good decision.
Schedule Your Furnace Tune-Up
Don't wait until something breaks. Schedule your annual maintenance now and head into winter with confidence.
Get in Touch
Fill out the form and we'll get back to you. Usually the same business day. For emergencies, call us directly.
Contact Information
Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service
24/7 Emergency Service
No heat? No hot water? Call 603-623-0412 any time.