Keeping your HVAC system in peak condition year-round can help you save on energy bills and prevent costly breakdowns. Here’s a seasonal checklist to keep your system running smoothly:
A dripping faucet may seem minor, but it can waste hundreds of gallons of water per year. Here’s what might be causing it:
Want to save on energy bills without sacrificing comfort? Try these HVAC upgrades:

A.J. LeBlanc Heating is proud to be recognized as a Bosch Platinum Dealer, a prestigious distinction that sets us apart not only in New Hampshire but on a national level. As the top Bosch HVAC dealer in New Hampshire and one of the largest Bosch dealers in the entire country, our commitment to quality installations, customer satisfaction, and industry-leading expertise has earned us this elite status.
A.J. LeBlanc Heating, Plumbing, and Electric is proud to share that we have once again been voted Best of The 603 in 2025. This marks our fifth consecutive year being recognized as one of New Hampshire’s top home service companies for heating, cooling, plumbing, and electrical work.
A.J. LeBlanc Heating, Plumbing, and Electric is honored to once again be recognized by our community in the Union Leader Readers’ Choice Awards. For 2025, we were voted Best HVAC Company, Best Plumber, and Best Electrician in New Hampshire. These awards mean so much to us because they come directly from our customers and neighbors who trust us with their home comfort every day.