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Navien authorized dealer and installer

Navien Condensing Tankless Water Heaters and Boilers

A.J. LeBlanc Heating installs and services Navien tankless water heaters, wall-hung condensing boilers, and combi-boilers throughout Southern New Hampshire. Navien's condensing technology provides high-efficiency operation, continuous hot water when the system is sized for the household's simultaneous demand, and a compact footprint that frees up basement space.

Navien Dealer
Factory-Trained
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About Navien

Navien Tankless Water Heaters & Boilers

Navien builds condensing tankless water heaters, wall-hung boilers, and combi-boilers. Condensing models recover additional heat from exhaust when operating conditions support condensation. A.J. LeBlanc Heating installs, maintains, and repairs Navien equipment throughout Southern NH and sizes the system for the home's hot-water and heating demand.

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Navien Products We Install & Service

Full Navien Lineup

  • Navien Tankless Water Heaters
  • Navien Wall-Hung Condensing Boilers
  • Navien Combi-Boilers (Heat & Hot Water in One Unit)
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Why Choose A.J. LeBlanc Heating for Navien

A Trusted Navien Installer, Family-Owned Since 1928

Authorized Navien Dealer

Our Navien factory training supports correct sizing, installation, startup, and service for the company's boilers, combi boilers, and tankless water heaters.

4th Generation, Family-Owned

Same family, same values since 1928. More than 30,000 Southern NH customers have trusted us with their hot water and heating.

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 Navien installations, routine maintenance, and repairs on existing systems.

Free Navien Quote

Ready for a Navien Installation?

Call or fill out the form below. A Home Comfort Advisor will review your needs, recommend the right Navien model, and provide a written estimate.

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Free Estimates

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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.