Lennox: A Century of Heating and Cooling Innovation
A.J. LeBlanc Heating has been installing Lennox furnaces, central air conditioners, and heat pumps in Southern New Hampshire for more than 60 years. Our company archive includes an early Lennox service truck and a Lennox sales award presented to Armand LeBlanc.
Lennox HVAC Equipment
Lennox offers gas furnaces, central air conditioners, heat pumps, air handlers, and indoor-air-quality equipment across several efficiency and comfort levels. A.J. LeBlanc Heating installs, maintains, and repairs Lennox equipment throughout Southern New Hampshire and compares the capacity, staging, controls, installed cost, and model-specific warranty before recommending a system.
Full Lennox Product Lineup
- Lennox Gas Furnaces
- Lennox Central Air Conditioners
- Lennox Heat Pumps
- Lennox High-Efficiency Variable-Speed Systems
- Indoor Air Quality Accessories
A Trusted Southern NH Lennox Installer, Family-Owned Since 1928
Longtime Lennox Dealer
A Lennox dealer for more than 60 years. Our company archive includes an early Lennox service truck and a Lennox sales award presented to Armand LeBlanc.
4th Generation, Family-Owned
Same family, same values since 1928. Thousands of Southern NH homeowners have trusted us with their heating and cooling.
Readers' Choice Winners
Voted Best HVAC, Best Plumber, and Best Electrician in the Union Leader Readers' Choice Awards by Southern NH homeowners year after year.
Installation, Service & Repair
We handle new Lennox installations, routine maintenance, and repairs on existing systems.
Ready for a Lennox Installation?
Call or fill out the form below. A Home Comfort Advisor will review your needs, recommend the right Lennox model, and provide a written estimate.
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.