A.J. LeBlanc Heating, Inc

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A.J. LeBlanc Heating Service Area - Nashua

We service Nashua, NH

Nashua HVAC & Plumbing

A.J. LeBlanc Heating specializes in the installation and service of heating, air conditioning and plumbing systems for residential homes in Nashua, NH. The regions highlighted in green are serviceable 24/7/365. The regions highlighted in red are outside our normal service area and require office approval.

A.J. LeBlanc Heating & A/C - Nashua NH


New Hampshire's Best HVAC & Plumbing Contractor

A.J. LeBlanc Heating and air conditioning 89 years anniversary, celebrating 89 years of family business in NH

A.J. LeBlanc Heating, A/C, Plumbing & Electric is a full-service HVAC, electrical & plumbing contractor. The LeBlanc family has been installing and servicing residential equipment since 1928! To this day we live by our original core values of quality workmanship & customer service. We pride ourselves in quality workmanship which is why "Nobody can quite compare to A.J. LeBlanc Heating & Air!" Call A.J. LeBlanc Heating, Cooling, Plumbing & Electric today for a free estimate. We service Southern NH, including Manchester NH, Concord NH, Nashua NH and Salem NH.

A.J. LeBlanc Plumbing

We Want To Be Your Plumber!

Need A Plumber?

If you have a leaky faucet, stubborn drain, clogged toilet, burst pipe or a remodeling job LeBlanc Plumbing can help! For a free estimate call 603-623-0412.



Central Air Conditioning

A.J. LeBlanc Heating installs and services all central air conditioning systems. We are experts in air conditioning installation and are known for superior duct design. Some of the air conditioner brands we sell include but are not limited to Goodman, York , Amana, Lennox, Maytag & Fujitsu. Call us today for a free air conditioning quote!

Central A/C

Furnace Contractor

A.J. LeBlanc Heating installs and services oil furnaces & gas furnaces. We pride ourselves in proper furnace sizing which helps ensure the homeowner gets the most efficient system possible. Some of the furnace manufacturers we install include but are not limited to Maytag, Lennox, ThermoPride, Thermoflo, York, Goodman & Amana.

Furnaces (FHA)

Boiler Contractor

A.J. LeBlanc Heating installs and services oil boilers & gas boilers. We install our hydronic heating systems the right way! Rather than patching your existing issues and attaching a brand new boiler to them, we analyze the efficiency and modify the existing piping accordingly. This ensures the homeowner gets the most out of their new boiler.

Boilers (FHW)

Ductless Mini Splits

We are the number one Fujitsu contractor in NH! We have installed over 500 ductless mini-split systems. Our ductless mini-spilts are providing customers throughout southern NH with heating and air conditioning year round. Ductless mini-splits are great for homes with boilers and no existing ductwork!

Mini Splits

Air Quality Control

Air quality is extremely important to comfortable living. Humidity levels and air purification play a huge part in quality of life. Our air quality products can help you and your family experience a homier environment. Air quality products include humidifiers, dehumidifiers and air filtration systems.

Air Quality

Hot Water Tanks

A.J. LeBlanc Heating specializes in quick, quality water heater installations. We have a full selection of water heaters, including tankless water heaters, hybrid water heaters and traditional hot water tanks. A.J. LeBlanc's Master plumbers are typically available for same day installations.

Water Heaters

Heat Pump Contractor

A heat pump is a device that moves heat from one place to another. An air source heat pump employs the same basic refrigeration cycle as an air conditioner or a refrigerator. A heat pump uses a reversing valve to control the transfer of heat which allows the homeowner to both heat and air condition their home with a single system.

Heat Pumps

Tankless Water Heaters

Tankless water heaters provide hot water only when you need it, which saves on your energy bill. Tankless water heaters also provide an endless supply of hot water which translates to a more comfortable shower for every individual in your home. Tankless water heaters are also significantly smaller than a traditional hot water tank.


Hybrid Water Heaters

A heat pump is a device that moves heat from one place to another; it works much like an air conditioner or a refrigerator. While a refrigerator moves heat from your fridge to your kitchen, a heat pump water heater (HPWH) moves heat from your home into the hot water tank. HPWHs' will also dehumidify and air condition your basement.

Water Heaters

Bathtub Installations

Do you need a new bathtub, wirlpool tub, or walk-in tub? Our master plumbers can solve all of your bathtub needs, whether it be installing a new bathtub or repairing bathtub fixtures or drains.


Shower Stalls & Enclousres

Do you need a new shower stall, shower base, or shower enclosure? Our master plumbers can solve all of your shower needs, whether it be installing a new shower or repairing shower fixtures or drains.


Toilet Installs & Repair

Do you need a new toilet? Our master plumbers can solve all of you toilet needs, whether it be installing a new comfort height toilet, repairing a leaking / clogged toilet or replacing old toilet internals.


Sinks & Faucets

Trust our plumbers to replace or repair all of your home's sinks and faucets. Ensure piece of mind with sink and faucets installed or repaired by A.J. LeBlanc Heating's professional plumbing team.

Sinks & Faucets

Garbage Disposals

Tired of emptying your leftovers into the trash? Have our plumbers install a garbage disposal and never empty leftovers into the trash again! We have the electricians and plumbers required on staff. Call for a free estimate.



Need an appliance hooked up? A.J. LeBlanc Heating installs hot and cold water supplies, drains, electrical outlets and gas piping to select appliances. Call us today for a free estimate.


Panel Upgrades & Service

Our electricians are fast, friendly and reliable. We are residential electrical experts. From panel upgrades to lighting remodeling, our master electricians are here to service your electric needs. Our electrical services include up front, fair and honest pricing.


Generator Service

Our master electricians are knowledgeable in standby generator installations and service. We offer annual generator maintenance and our electricians are Generac certified. Our Electricians are also gas licensed meaning one supervisor oversees all generator installations.


Electric Car Chargers

As the demand for electric cars increases we have made ourselves familiar with electric vehicle charging systems. So if you’re getting a Tesla or some other brand of electric vehicle don't hesitate to call us for a free electric vehicle charger quote.


Plumbing Contractor

A.J. LeBlanc Plumbing installations are competitively priced and will exceed your expectations in both workmanship quality and customer service. From toilet replacement to kitchen remodeling our master plumbers can get the job done.


Electrical Contractor

LeBlanc Electric has professional Master Electricians to service, install or repair any residential electrical system. From faulty light switches to whole house generators we are here to help. Visit our new website to get a free electrical quote.


A.J. LeBlanc History

A.J. LeBlanc Heating is best known for its quality workmanship and service. A.J. LeBlanc Heating represents four generations of honesty and integrity. The LeBlanc family has provided southern New Hampshire with quality HVAC service since 1928.


UNH Family Business
of The Year

2013, 2014, 2015, 2016, 2017, 2018 & 2019
Union Leader's Reader's Choice
HVAC & Plumbing