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Lennox authorized dealer and installer

Lennox: A Century of Heating and Cooling Innovation

A.J. LeBlanc Heating has been installing Lennox furnaces, central air conditioners, and heat pumps for generations, making us one of the longest-serving Lennox dealers in the region. We've been recognized by Lennox International for our installation work in Southern New Hampshire.

Lennox Dealer
Factory-Trained
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About Lennox

Lennox HVAC Equipment

Lennox has been engineering heating and cooling equipment for more than a century. The residential lineup is designed around consistent, reliable performance with an emphasis on energy efficiency, helping homeowners enjoy steady comfort and improved indoor air quality while keeping utility costs in check. A.J. LeBlanc Heating handles new Lennox installs, scheduled maintenance, and repairs on existing systems throughout Southern New Hampshire.

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Lennox Products We Install & Service

Full Lennox Product Lineup

  • Lennox Gas Furnaces
  • Lennox Central Air Conditioners
  • Lennox Heat Pumps
  • Lennox High-Efficiency Variable-Speed Systems
  • Indoor Air Quality Accessories
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Why Choose A.J. LeBlanc Heating for Lennox

Southern NH's Trusted Lennox Installer Since 1928

Longtime Lennox Dealer

One of the longest-serving Lennox dealers in the region, recognized by Lennox International for our installation work in Southern New Hampshire.

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, plumbing, and electrical contractor by Southern NH homeowners year after year.

Installation, Service & Repair

We handle new Lennox installations, routine maintenance, and repairs on existing systems. One call covers it all.

Free Lennox Quote

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.

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Free Estimates

Get in Touch

Fill out the form and we'll get back to you. Usually the same business day. For emergencies, call us directly.

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Contact Information

Hours

Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service

24/7 Emergency Service

No heat? No hot water? Call 603-623-0412 any time.