Boiler Tune-Up &
Maintenance Service
A.J. LeBlanc Heating provides annual boiler tune-ups across Southern NH. Family-owned since 1928, our licensed technicians service gas, oil, and propane boilers of all makes and models.
What's Included in a Boiler Tune-Up
Boilers are reliable, but they still need annual attention. A.J. LeBlanc Heating technicians check every component that affects efficiency, safety, and reliability, and give you a written report of what they find.
- Inspect and clean burner assembly
- Test and clean combustion chamber
- Check flue and venting for proper draft
- Inspect heat exchanger for leaks or corrosion
- Test pressure relief valve and expansion tank
- Check zone valves and circulator pump operation
- Test aquastat and safety controls
- Bleed radiators and check system pressure
- Check for leaks at fittings and connections
- Test carbon monoxide and combustion efficiency
- Provide written report of findings
Why Boilers Need Annual Service
Prevent Leaks & Corrosion
Hydronic systems develop corrosion and small leaks over time. Catching them early means a simple repair rather than a flooded boiler room or damaged equipment.
Check System Pressure
Incorrect system pressure causes poor heat distribution, zone valve failures, and expansion tank problems. Annual service confirms everything is operating at the right pressure.
Combustion Efficiency
A boiler burning at improper air-fuel ratios wastes fuel and shortens equipment life. We measure combustion efficiency and adjust as needed.
Safety Controls
Pressure relief valves, aquastats, and low-water cutoffs are critical safety devices. We test every one to make sure they'll function when needed.
Boiler Service FAQ
How often should a boiler be serviced?
Once a year, ideally before the heating season starts. Oil boilers especially benefit from pre-season service since they require nozzle and filter changes in addition to standard cleaning.
Do you service all boiler brands?
Yes. A.J. LeBlanc Heating services Saint Roch, Biasi, Energy Kinetics, Weil-McLain, Burnham, Buderus, Utica, Viessmann, Navien, Rinnai, Trio, and other major brands, plus Beckett, Carlin, and Riello oil burners. Gas, oil, and propane.
My boiler is making a banging or gurgling noise, is that serious?
It could be air in the system, a faulty circulator, kettling from scale buildup, or a pressure issue. It is worth having a tech look at it. Most of these are straightforward repairs if caught early.
Do you offer emergency boiler repair?
Yes, 24/7. Call 603-623-0412 any time.
Schedule Your Boiler Tune-Up
A small investment in annual maintenance can prevent a costly emergency breakdown in the middle of a NH winter.
Get in Touch
Fill out the form and we'll get back to you. Usually the same business day. For emergencies, call us directly.
Schedule Online in 60 Seconds
Pick a date and time that works for you. Service, maintenance, or estimate visits, no phone tag.
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.