Furnace Replacement in Southern NH
Stay warm with a high-efficiency furnace, installed fast by licensed NH techs. NHSaves rebate help, 0% financing available, and a free written estimate.
Expert Furnace Replacement in Southern NH
A.J. LeBlanc Heating has replaced thousands of furnaces across Southern NH. We size equipment correctly, handle all the installation details, and make sure your new furnace is set up for maximum efficiency and comfort.
A Trusted Southern NH Choice, Family-Owned Since 1928
All Major Furnace Brands
Goodman, Rheem, Amana, Lennox, Carrier, Bosch, American Standard, and more. We match the right brand and model to your home.
NHSaves Rebates Available
High-efficiency furnace replacements may qualify for NHSaves rebates. As a registered NHSaves contractor, we identify what your new furnace qualifies for and help you file it.
Correct System Sizing
We size your new furnace based on your home's actual heat load. Proper sizing means better comfort and lower bills.
Licensed NH Technicians
All work is permitted, inspected, and performed by licensed NH heating technicians.
Natural Gas and Propane Furnace Replacement
High-efficiency gas furnaces offer 96+ AFUE ratings and significant improvements over older systems. We handle everything from equipment selection through startup.
- Goodman, Rheem, Amana, Carrier, Lennox, American Standard, and more
- 96+ AFUE high-efficiency models available
- All gas line and venting work included
- Permits and inspections handled
- NHSaves rebates on qualifying systems
Oil Furnace Replacement
We replace oil furnaces with new high-efficiency oil equipment. We can also help you evaluate converting to gas or a heat pump system.
- All major oil furnace brands
- Efficiency upgrades available
- Oil to gas conversion if applicable
- Heat pump hybrid system option
- Free estimate with all options clearly presented
How We Price Furnace Replacement
Free Written Estimates
A Home Comfort Advisor comes to your home, evaluates your existing system, your ductwork, and your fuel setup, and gives you a written quote. There is no charge for the visit and no obligation to buy.
All-In Project Pricing
One number covers the equipment, installation labor, gas line and venting work, permits, and the inspection. No mid-job surprise charges.
NHSaves Rebate Help
A.J. LeBlanc Heating is a registered NHSaves contractor. We identify every NHSaves rebate your new furnace qualifies for and help you file it.
No Pressure, No Upsell
We recommend the right-size furnace for your home, not the most expensive one we can sell. No pressure sales, ever.
0% Financing Available
Spread the cost with 0% promotional financing on qualifying installations. Promotional terms start at 12 months, sometimes longer. Ask your Home Comfort Advisor about current offers so you can move forward now.
Reviews From Southern NH Homeowners
We love our new mini split system. What a bonus to have the a/c and heat in one system! Our A.J. LeBlanc Heating salesman was knowledgeable without being pushy. The guys who did the installation did a great job. They were fast, installation was very neat, and they made sure things were clean before they left.
Michael RobinsonDuctless Mini Split customerWe have had A.J. LeBlanc Heating for plumbing work and more recently a heat pump installation. Everyone we have come in contact with was polite, easy to work with and talk to. We will continue to do business with them and would recommend them to friends or family.
Gwendolyn BowenHeat Pump customerWe used A.J. LeBlanc Heating to install a new furnace for us when we purchased our home. We were so impressed with their promptness, reasonable costs, and professionalism during the install. When we needed central air installed, they were our first call and our experience was equally as pleasant the second time around. We have recommended them to all of our friends!
Abby ShockleyFurnace Installation customerRead more reviews on our testimonials page.
Free Estimate, No Pressure
Call us or fill out the form. We will assess your existing system, present all options, and provide a clear written estimate.
Frequently Asked Questions
When should I replace my furnace?
Furnaces typically last 15 to 20 years. Signs it is time to replace include frequent repairs, rising fuel bills, uneven heating, or a system over 20 years old.
What is the most efficient furnace available?
Two-stage and modulating gas furnaces with AFUE ratings of 96 to 98 percent offer the best efficiency and can qualify for NHSaves rebates.
How long does furnace replacement take?
Most furnace replacements are completed in one day. We confirm the timeline when we schedule the job.
Are there rebates for furnace replacement in NH?
NHSaves offers rebates on high-efficiency furnace replacements. A.J. LeBlanc Heating is a registered NHSaves contractor. We identify what your new furnace qualifies for and help you file it.
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.