HVAC Repair in Southern NH
When the heating or air conditioning stops working, call A.J. LeBlanc Heating and reach a real person. We repair all HVAC brands across Southern NH and prioritize same-day appointments for emergency no-heat and no-cooling calls when scheduling allows.
We Fix Furnaces, Boilers, A/C, and Heat Pumps
A.J. LeBlanc Heating services all major types and brands of residential HVAC equipment. Our trucks carry common parts, which helps us complete many repairs during the first visit. If the system needs a model-specific component, we explain the next step and expected timing before ordering it.
Family-Owned in Southern NH Since 1928
Emergency Service Available
No heat in winter or no A/C in summer is an emergency. We offer emergency service and prioritize no-heat calls.
All Makes and Models
We service Goodman, Rheem, American Standard, LG, Carrier, Trane, Lennox, Navien, Mitsubishi, Daikin, and all other major brands.
Family-Owned Since 1928
Decades of HVAC experience mean we have diagnosed virtually every type of system problem.
Stocked Service Vehicles
We carry many common service parts so more repairs can be completed without a return trip. If a part must be ordered, we explain the next step and schedule the follow-up promptly.
Furnace and Boiler Repair
We repair all types of heating equipment including gas furnaces, oil furnaces, gas boilers, oil boilers, and heat pumps.
- No heat diagnosis and repair
- Ignition and pilot light issues
- Heat exchanger inspection
- Circulator pump and zone valve repair
- Thermostat and control board failures
- Emergency no-heat service available
Air Conditioner and Heat Pump Repair
We repair central air conditioners, ductless mini splits, and heat pump systems.
- No cool air diagnosis and repair
- Refrigerant leak detection and recharge
- Capacitor, contactor, and relay replacement
- Mini split error code diagnosis
- Compressor and condenser fan repair
- Annual A/C tune-up available
How We Price HVAC Repair
Hourly Billing, One-Hour Minimum
Service is billed by the hour with a one-hour minimum. We explain the work, time, and parts included in the repair.
No Trip Charges
We do not charge just to show up. Standard business-hours rates apply during the workweek. After-hours and emergency calls have a premium rate that we disclose up front before any work begins.
No Commission, No Upsell
Our technicians are paid to fix your system, not to sell you a new one. They are not on commission. If a repair makes sense, we repair.
Annual Maintenance
Annual maintenance covers a yearly tune-up and includes priority scheduling when something goes wrong. Ask about our Rate Lock program for discounted off-peak tune-up pricing.
Reviews From Southern NH Homeowners
The sales person (Rich) was very personable and knowledgeable. We were provided a range of product options and cost points for a new HVAC system. The work was scheduled and completed on time and at the quoted price. We are very happy with the installation and system...works great...very efficient!
Joe LaPlanteHVAC System customerI expected that a company with a lot of trucks would cost more than a one or two person shop. I was wrong. A.J. LeBlanc Heating had the products I was interested in and at the best price. From the initial call to the completed installation of a new boiler and oil tank, I was impressed with the professional communications and customer service. The installation team was great and you could tell they knew what they were doing and took pride in their work. They were here each day early and happy to answer all my questions and teach me a few things too. I could go on but overall I was very satisfied with the experience and the work they did. Would definitely recommend.
Gary LeverBoiler Installation customerFrom meeting with the salesman, speaking and working with the technicians, and having a rapid follow-up to a minor leak that occurred a couple of weeks after the installation, we have found working with A.J. LeBlanc Heating to be a very positive experience.
Gerry St. AmandHeating Service customerRead more reviews on our testimonials page.
Call for Fast HVAC Service
Call 603-623-0412 or fill out the form. Same business day response for non-emergency calls. Emergency calls prioritized.
Frequently Asked Questions
How quickly can you repair my HVAC system?
For no-heat emergencies in winter, we prioritize response. For non-emergency repairs, we typically schedule within one to two business days.
What HVAC brands do you service?
We service all major brands including Goodman, Rheem, American Standard, LG, Carrier, Trane, Lennox, Navien, Viessmann, Mitsubishi, Daikin, Fujitsu, and all others.
Should I repair or replace my system?
Repair or replacement depends on the failed part, the system's condition, repair history, safety, warranty coverage, and the cost of both options. We inspect the equipment, explain what we found, and give you the repair and replacement choices that make sense for the home.
Do you offer annual maintenance?
Yes. Annual maintenance provides regular tune-ups and priority scheduling. Ask about our Rate Lock program for discounted off-peak tune-up pricing.
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.