HVAC, Plumbing & Electrical
in Exeter, NH
A.J. LeBlanc Heating serves Exeter and Southern New Hampshire. Family-owned since 1928, our EPA-certified HVAC technicians, licensed plumbers, licensed electricians, and water-treatment specialists provide honest estimates and 24/7 emergency service.
Complete Home Services
for Exeter Homeowners
Our in-house heating, cooling, plumbing, and electrical teams work together under one roof. Homeowners get one company to coordinate the job and one clear point of contact from start to finish.
Heating
We install, repair, and maintain furnaces, boilers, and heat pumps in Exeter, with 24/7 emergency service available.
Heating ServicesAir Conditioning
We install and service central A/C and ductless mini split systems in Exeter. Our team has installed thousands of ductless systems across Southern NH.
A/C ServicesPlumbing
Our licensed plumbers handle water heaters, drains, fixtures, water-supply piping, and residential plumbing repairs in Exeter homes.
Plumbing ServicesElectrical
Our licensed New Hampshire electricians handle panel upgrades, standby generators, EV chargers, and electrical repairs for Exeter homeowners.
Electrical Services
We Know
Exeter Homes.
Founded in 1638, Exeter combines a historic Seacoast center with postwar neighborhoods and newer development toward the town's edges. Brick and clapboard homes from the 1700s and 1800s remain near Phillips Exeter Academy and downtown. A.J. LeBlanc Heating serves those historic houses, multi-family buildings, manufactured homes, and later single-family properties.
Housing: Exeter has a more varied housing mix than a typical suburb. Single-family homes account for just under half of its units, multi-family buildings make up close to 40 percent, and manufactured homes account for another 12 percent. Nearly one-quarter of the housing predates 1940, while construction also peaked during the 1970s and 1980s, putting the median build year near 1979. The oldest houses near Phillips Exeter Academy and downtown require particular care around original finishes and systems added over generations.
Furnaces, Boilers &
Heat Pumps
Heating in Exeter
Exeter homes use natural gas, oil, propane, and heat pumps. Unitil provides natural gas in parts of town, allowing A.J. LeBlanc Heating to complete gas replacements and oil-to-gas conversions where service is available at the address. Many older homes still have oil-fired steam or hot-water systems that require experience with the boiler, piping, radiators, venting, and controls. In multi-family buildings, we also determine whether one system serves several units and plan zoning, access, and replacement around that layout.
Heating Services We Provide
We install and service all types of heating equipment in Exeter. Whether you need an emergency repair, annual service, or a complete replacement, we respond quickly.
- Gas & Oil Furnace Installation
- Boiler Installation & Repair
- Heat Pump Installation
- Water Heater Replacement
- Annual Heating Maintenance
- 24/7 Emergency Heating Service
Air Conditioning &
Mini Split Installation
Cooling in Exeter
Older Exeter homes near downtown often have boiler heat and no ductwork for central air conditioning. A mini split system can provide zoned cooling with limited disruption to original plaster and woodwork, and it can also serve individual spaces in multi-family buildings. Postwar and newer homes with suitable forced-air ducts may be suited to central A/C or a ducted heat pump. A.J. LeBlanc Heating evaluates the home's layout, existing system, and electrical capacity before recommending equipment.
Cooling Services We Provide
Exeter homeowners can call us for central air conditioning, heat pumps, and ductless mini splits. Our team has installed thousands of ductless systems throughout Southern NH. We respond quickly for summer breakdowns and full system replacements.
- Central A/C Installation
- Ductless Mini Split Systems
- Heat Pump Installation
- A/C Repair & Tune-Up
- Indoor Air Quality
Filtration, Softeners
& Testing
Water Treatment in Exeter
Exeter's public system combines surface water and groundwater. The Exeter River is a primary source, with reservoir and groundwater sources also available, and the Lary Lane plant treats groundwater for iron, manganese, and arsenic and adjusts pH. Exeter uses chloramine as a disinfectant.
A.J. LeBlanc Heating can install carbon equipment designed and sized for a defined chloramine-related taste or odor, along with under-sink carbon or reverse osmosis systems for drinking and cooking water. Homes outside municipal service need independent laboratory testing, with results used to select iron, manganese, sulfur-odor, or arsenic treatment. When radon aeration is recommended, we direct the homeowner to an independent company.
Water Treatment Services We Provide
We provide water-treatment installation and service in Exeter. Independent laboratory results guide every private-well recommendation, from drinking-water filtration to complete whole-house treatment.
- Well Water Filtration
- Water Softeners
- Iron & Manganese Removal
- Reverse Osmosis Drinking Water
- UV Purification
- Water Sampling & Independent Laboratory Testing
Water Heaters, Drains
& Fixtures
Plumbing in Exeter
Exeter's antique houses, multi-family buildings, manufactured homes, and later neighborhoods contain plumbing from many construction eras. A.J. LeBlanc Heating repairs dripping faucets, running toilets, leaking supply pipes, unreliable shutoffs, slow drains, and water heaters. Some older properties still contain cast-iron drain piping behind walls or below basement floors, and we can replace deteriorated sections when leaks, cracking, or recurring backups show the pipe is failing.
We plan access carefully and explain the repair before work begins.
Plumbing Services We Provide
We handle plumbing repairs and equipment replacements for Exeter homes. Our work includes leaking fixtures, water heaters, household piping, well tanks, pressure switches, and related controls.
- Water Heater Installation
- Well Tanks, Pressure Switches & Controls
- Drain Cleaning
- Faucet & Fixture Installation
- Household Water-Supply & Drain Piping
- Repairs & Service
Panels, Generators
& EV Chargers
Electrical in Exeter
The team you trust for heating and cooling in Exeter is also ready to help with electrical work. We send licensed New Hampshire electricians to complete the job.
Electrical Services We Provide
We handle panel upgrades, standby generators, and new EV chargers. Our electricians respond quickly and complete the work to code.
- Electrical Panel Upgrades
- Standby Generator Installation
- EV Charger Installation
- Lighting, Outlets & Switches
- Electrical Repair & Service
Local to Exeter.
Trusted Since 1928.
Exeter's antique homes, postwar neighborhoods, multi-family buildings, manufactured homes, and newer construction create a broad range of service needs. A.J. LeBlanc Heating works on steam and hot-water boilers, furnaces, central A/C, mini splits, and cold-climate heat pumps. We plan around older finishes, tight mechanical spaces, existing ductwork, and equipment serving multiple units, with in-house plumbing and electrical teams available for related work.
Based in Bedford, about 35 minutes from Exeter
Our shop is on South River Road in Bedford. We know the roads and we respond quickly.
Licensed, Insured & Background-Checked
Every A.J. LeBlanc HVAC technician holds EPA Section 608 certification and a separate New Hampshire fuel gas fitter license. Our plumbers and electricians are New Hampshire master or journeyman licensed in their trade. A.J. LeBlanc Heating is ACCA QA Certified.
Not Commission-Based
Our technicians are not paid sales commission. Their recommendations stay focused on what the home needs.
24/7 Emergency Response
No heat at 2am? We answer the phone every day of the year, including holidays.
What Southern NH
Homeowners Say
"Great job from start to finish!"
"Wonderful work whether plumbing, heating or air conditioning. Wouldn't call anyone else."
"Justin did an awesome job making sure my system was running properly and went above and beyond to make sure it was safely and properly vented to prevent any CO danger. He was courteous, professional and articulate when explaining what needed to be done and why."
HVAC, Plumbing & Water FAQ
for Exeter, NH
Do you service Exeter, NH?
Yes. Exeter is one of our core service areas. We provide heating, air conditioning, plumbing, and electrical services throughout Exeter and the surrounding Rockingham County area. Call 603-623-0412 for a free estimate.
How quickly can you respond in Exeter?
Our Bedford headquarters is about 35 minutes from Exeter. We typically schedule service within 1-2 business days, with same-day appointments for emergencies when scheduling allows. For urgent heating or cooling issues, call us directly at 603-623-0412.
Do you offer emergency service in Exeter?
Yes. We provide 24/7 emergency service in Exeter. Call 603-623-0412 any time, day or night, including weekends and holidays.
Are there heating or cooling rebates available in Exeter?
Exeter homeowners may qualify for NHSaves rebates through Eversource, Liberty Utilities, New Hampshire Electric Cooperative, or Unitil. Additional New England Heat Pump Accelerator incentives may apply to qualifying equipment. Program rules and funding can change, so we confirm the current options when preparing the estimate.
Do you handle both HVAC and plumbing?
Yes. We handle heating, cooling, plumbing, and electrical all under one roof. That means one call, one relationship, and one company familiar with your whole home. No coordinating between multiple vendors or schedules.
What heating systems are common in Exeter?
Heating systems vary from one Exeter home to another. We service boilers, furnaces, heat pumps, and other common systems. After inspecting the home, we explain the repair or replacement options clearly.
Do I need water treatment in Exeter?
It depends on your water source and your goals. For a private well, we collect a sample and send it to an independent laboratory. We use the results to recommend treatment only when the water calls for it. For public water, we review the utility report and investigate the condition at the tap before recommending additional equipment.
What water treatment systems do you install in Exeter?
We install water softeners, iron and manganese filters, sediment filters, activated-carbon filters, whole-house ultraviolet systems, arsenic-treatment systems, and under-sink reverse osmosis. Equipment is selected and sized from independent laboratory results, the public-water report, and the homeowner's specific goal. For radon in well water, we can provide contact information for an independent mitigation company.
What plumbing services do you offer in Exeter?
We handle water heaters, drain cleaning, faucet and fixture installation, leak and pipe repair, shutoff valves, and water-supply and drain piping throughout the home. If the home uses a private well, we also service the well tank, pressure switch, and related controls. We complete selected exterior piping as well, including irrigation and accessory-dwelling-unit connections.
Do you install and replace water heaters in Exeter?
Yes. We install and replace natural gas, propane, oil, and electric water heaters, plus heat-pump water heaters. We help you choose the right size and fuel for your home and install it to code.
Also Serving Towns Near Exeter
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.