Plumbing Service,
Repair & Remodeling in Southern NH
A.J. LeBlanc Heating's licensed plumbers handle kitchen and bath remodels, water heater replacement, fixture installation, and emergency drain clearing across Southern NH. Same-day service may be available when scheduling and equipment allow.
Plumbing Service, Repair & Installation
in Southern New Hampshire
A.J. LeBlanc Heating's licensed plumbers handle everything from a dripping faucet to the plumbing for a full kitchen remodel across Southern NH. Our plumbers are not commissioned on repairs. They diagnose the problem, explain the options, and give you the repair price before work begins.
Kitchen & Bath Remodeling
Complete plumbing for kitchen and bathroom renovations, from rough-in through finish work. Sinks, faucets, showers, tubs, toilets, and all fixture installation.
Remodeling PlumbingWater Heater Installation
Traditional, tankless, and hybrid water heaters installed by licensed professionals, with same-day replacement available when the required equipment and scheduling allow.
Water Heater ServicesPlumbing Repair & Service
Leaky faucets, accessible clogged drains, burst pipes, running toilets, fixture problems, and household plumbing repairs. Emergency plumbing service is available 24/7 throughout our service area.
Plumbing Repair
Kitchen & Bathroom Plumbing Remodeling
A.J. LeBlanc Heating's licensed plumbers handle rough-in and finish plumbing for kitchen and bathroom renovations across Southern NH. We coordinate with your general contractor, or can bring in a general contractor we work with regularly to manage the broader renovation. Our team obtains permits for the plumbing, HVAC, and electrical work in our scope when required.
- Kitchen Sink & Faucet Installation
- Dishwasher & Appliance Plumbing Hookup
- Garbage Disposal Installation & Repair
- Bathroom Sink, Faucet & Vanity
- Toilet Installation & Replacement
- Shower & Bathtub Installation
- Walk-In Tub & Whirlpool Installation

Water Heater Installation & Prompt Service
No hot water? Same-day water heater service or replacement may be available when the required equipment and scheduling allow. Our licensed plumbers handle the plumbing work, and New Hampshire-licensed fuel gas fitters handle gas-fired equipment. We install traditional tank water heaters, Navien and Rinnai tankless systems, hybrid heat pump water heaters, indirect tanks, and oil-fired models. We match the equipment to the home's fuel or electrical service.
- Traditional Tank Water Heater Replacement
- Navien & Rinnai Tankless Water Heaters
- Hybrid Heat Pump Water Heaters
- Indirect Water Heaters
- Gas, LP, Oil & Electric Options
- Same-Day Service When Available
- All quotes include equipment, labor, permits, and our workmanship warranty

Plumbing Repair for Any Problem, Any Size
A.J. LeBlanc Heating's plumbers handle everything from a dripping faucet to a burst pipe. We diagnose the problem, explain your options clearly, complete the approved repair, and test the work before leaving. Emergency plumbing service is available 24/7 throughout our service area.
- Leaking Faucets, Pipes & Fixtures
- Clogged & Slow Drains
- Toilet Repair & Replacement
- Burst Pipe Repair
- Well Tanks & Pressure Switches
- City Water Pressure Booster Pumps
- Sump Pump Installation & Service
- Plumbing Winterization
- New Construction Plumbing
How It Works
Free Estimate
A.J. LeBlanc Heating assesses the plumbing scope, whether it is a quick repair or part of a full remodel, and gives you a clear written estimate before any work begins.
Honest Diagnosis
Our plumbers aren't commission-based. You get an honest assessment of what your plumbing actually needs, and our quotes cover all labor, parts, and permits up front.
Clean & Permitted Work
We pull all required permits, protect your home during the job, and clean up completely. Every install is backed by our workmanship guarantee.
Plumbing Installations
Water Heater Brands We Stock & Install
A.J. LeBlanc Heating installs water heaters from the brands Southern New Hampshire homeowners trust. We stock common tank sizes, so same-day replacement may be available when the required unit is in stock and scheduling allows. We install tank, tankless, hybrid heat pump, indirect, and oil-fired water heaters.
Bradford White
Bradford White offers professionally distributed gas and electric tank water heaters and other residential hot-water equipment. A.J. LeBlanc Heating installs and services the brand throughout Southern NH.
Learn more
Navien
Navien offers wall-hung condensing boilers, combi-boilers, and tankless water heaters. A.J. LeBlanc Heating sizes, installs, maintains, and repairs Navien equipment throughout Southern NH.
Learn more
Rinnai
Rinnai offers tankless water heaters and condensing boilers. A correctly sized tankless unit can provide continuous hot water within its rated flow while using less floor space than a storage tank.
Learn more
A.O. Smith
A.O. Smith offers gas, electric, power-vent, and heat-pump water heaters. A.J. LeBlanc Heating matches the model to the home's hot-water demand and installation requirements.
Learn more
State Water Heaters
State offers gas, electric, heat-pump, tank, and tankless water-heating options. A.J. LeBlanc Heating selects the model around household demand, available energy source, venting, space, and electrical capacity.
Learn more
HTP SuperStor
HTP SuperStor indirect tanks use the boiler to produce domestic hot water. A.J. LeBlanc Heating sizes the tank and boiler connection for the household's hot-water demand.
Learn more
Heat-Flo
Heat-Flo offers indirect water heaters, stainless tanks, hydronic buffer tanks, and storage tanks. A.J. LeBlanc Heating selects and installs the tank for the boiler and hot-water application.
Learn more
Everhot by Therma-Flow
Everhot by Therma-Flow includes oil-fired tank water heaters, indirect water heaters, and storage tanks. A.J. LeBlanc Heating installs and services the equipment in homes where it fits the fuel and hot-water demand.
Learn more
Bock
Bock offers oil-fired water heaters for homes with substantial hot-water demand and an appropriate oil system. A.J. LeBlanc Heating sizes, installs, and services Bock equipment throughout Southern NH.
Learn morePlumbing FAQ
Do you offer same-day water heater installation?
Same-day water heater service or replacement may be available when the required equipment and scheduling allow. We install Bradford White, Navien, Rinnai, A.O. Smith, and State equipment. Call 603-623-0412 and we will confirm availability.
What's the difference between tankless and traditional water heaters?
A traditional water heater stores 40 to 80 gallons of hot water in a tank, keeping it warm continuously. A tankless (on-demand) unit heats water as you need it instead of keeping a full tank hot. When correctly sized for the home's demand, it can provide continuous hot water, and it is wall-mounted and compact. We help you evaluate which makes sense for your Southern NH home and usage.
Do you handle full kitchen and bathroom remodels?
Yes. A.J. LeBlanc Heating handles plumbing rough-in and finish work, plus related HVAC and electrical work in our scope. We coordinate with your general contractor or builder. If you do not have one, we can bring in a general contractor we work with regularly to manage the broader renovation.
Are your plumbers licensed in New Hampshire?
Yes. Our plumbers hold New Hampshire master or journeyman plumbing licenses and are fully insured. We are also not commission-based, so our plumbers earn the same regardless of what they recommend, and you always get an honest assessment of what your plumbing actually needs.
Do you offer emergency plumbing service?
Yes. Emergency plumbing service is available 24/7. If you have a burst pipe, major leak, or no hot water, call 603-623-0412 any time.
Southern NH Communities We Serve
Free estimates and prompt service across Southern New Hampshire. Find your town for local details, or call 603-623-0412.
Services in Southern NH's Largest Cities
What Customers Say About Our Plumbing Service
"We 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."
"I had house guests and had purchased a brand new toilet which A.J. LeBlanc Heating installed. It clogged on the last day of my guests visit. When I called, they sent someone over immediately as I have only one bathroom. Thanks for caring!"
"The installer was very professional. He performed the installation quickly and cleaned up when he was done. I am extremely satisfied with the job that was done."
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.