Furnace Tune-Up &
Maintenance Service
Family-owned since 1928, A.J. LeBlanc Heating provides annual furnace tune-ups across Southern NH. We service gas, oil, and propane furnaces of all makes and models. New Hampshire-licensed fuel gas fitters handle natural-gas and propane equipment, and our technicians are factory-trained and certified on Carlin, Beckett, and Riello oil burners.
What's Included in a Furnace Tune-Up
A thorough annual tune-up can help protect furnace efficiency, support longer equipment life, and identify developing issues before they become no-heat calls. Our New Hampshire-licensed fuel gas fitters service natural-gas and propane furnaces, and our factory-trained oil-burner technicians service Carlin, Beckett, and Riello equipment.
- 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 failing igniter, blocked vent, or damaged safety control may be found during a tune-up before it causes a no-heat call. A cracked heat exchanger is different. It is a serious safety concern that requires immediate attention and a clear repair-or-replacement recommendation.
Protect Efficient Operation
Buildup, poor airflow, or incorrect control settings can reduce performance. Cleaning and adjustments completed during the tune-up help the furnace operate as intended.
Longer Equipment Life
Regular maintenance helps protect furnace performance and service life by addressing buildup, airflow problems, and worn components. It also gives you a clearer picture of the equipment's condition before a midwinter failure forces a rushed decision.
Warranty Compliance
Manufacturer maintenance requirements vary by model and written warranty. Following the equipment's maintenance schedule and keeping service records helps document that the system was cared for if a warranty question comes up.
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?
A tune-up shows the furnace's current condition, signs of wear, safety concerns, and repairs worth planning for. It cannot predict an exact remaining lifespan, but it gives you better information for deciding whether to maintain, repair, or replace the system.
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.