HVAC, Plumbing & Electrical
in Allenstown, NH
A.J. LeBlanc Heating serves Allenstown and Southern NH, family-owned since 1928. Licensed technicians, honest estimates, and 24/7 emergency service.
We Know
Allenstown Homes.
Allenstown lies along the Suncook River south of Concord, with many homes clustered near Suncook Village and the Pembroke line. Bear Brook State Park occupies more than half of the town, which keeps the residential areas relatively compact. A.J. LeBlanc Heating serves neighborhoods close to the river and the park boundaries.
Housing: Allenstown includes several distinct housing types. Single-family homes are the largest group, while roughly one-third of the town's housing consists of manufactured homes and older multi-family buildings are found near the Suncook Village mills. Ranches and capes from the 1970s and 1980s are common, with some pre-1940 New Englanders still in place. The median Allenstown home dates to about 1981.
Heating: Oil remains common in Allenstown's older homes. Liberty Utilities provides natural gas in the denser Suncook Village area, so A.J. LeBlanc Heating completes gas replacements and oil-to-gas conversions where service is available at the address. Homes beyond gas service may use oil, propane, electricity, or cold-climate heat pumps. Manufactured homes require correctly sized equipment and components approved for that housing type, and we evaluate the existing system and ductwork before selecting a replacement.
Cooling: Many Allenstown New Englanders, ranches, and capes were built without central-air ductwork. A properly designed mini split can deliver zoned cooling with limited changes to finished rooms. In manufactured homes, A.J. LeBlanc Heating evaluates the existing duct system and matches the equipment to the home's construction and applicable requirements. Houses with suitable forced-air ducts can often use central A/C or ducted heat-pump equipment.
Complete Home Services
for Allenstown Homeowners
One call covers everything. Our licensed teams handle heating, cooling, plumbing, and electrical so you don't have to coordinate between separate companies for each trade.
Heating
Furnace, boiler, and heat pump installation and repair in Allenstown. Annual maintenance and 24/7 emergency response.
Heating ServicesAir Conditioning
Central A/C and ductless mini-split installation and service in Allenstown. We've installed thousands of ductless systems across Southern NH.
A/C ServicesPlumbing
Kitchen and bath remodeling, water heaters, drains, and full plumbing service for Allenstown homes.
Plumbing ServicesElectrical
Panel upgrades, generators, EV chargers, and electrical repair for Allenstown homeowners. Licensed NH electricians.
Electrical Services
Furnaces, Boilers &
Heat Pumps
We install and service all heating equipment in Allenstown. From emergency repairs to annual service to full system replacements, 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
A.J. LeBlanc Heating has installed thousands of ductless systems across Southern NH. We help Allenstown homeowners choose the right cooling solution for their home and budget.
- Central A/C Installation
- Ductless Mini Split Systems
- Heat Pump Installation
- A/C Repair & Tune-Up
- Indoor Air Quality
Local to Allenstown.
Trusted Since 1928.
Allenstown's mix of older houses, manufactured homes, and properties around Suncook Village requires more than one installation approach. A.J. LeBlanc Heating services and replaces oil and gas boilers and furnaces, installs central and ductless heat pumps, and matches manufactured-home equipment to the existing duct system and applicable requirements. Natural-gas conversions remain address-specific because service is concentrated in the denser village area.
Based in Bedford, about 20 minutes from Allenstown
Our shop is on South River Road in Bedford. We know the roads and we respond quickly.
Licensed, Insured & Background-Checked
Every HVAC technician is EPA certified and NH gas-licensed. Our plumbers and electricians are NH master or journeyman licensed in their trade. A.J. LeBlanc Heating is ACCA QA Certified.
Not Commission-Based
Our techs earn the same no matter what they recommend. You always get an honest answer.
24/7 Emergency Response
No heat at 2am? We answer the phone every day of the year, including holidays.
What Southern NH
Homeowners Say
"Competitive pricing, good service and products make A.J. LeBlanc Heating a good choice."
"Dennis was excellent. Very knowledgeable and efficient with his work. Solved the problem quickly and in a timely manner."
"The technician arrived on time and was excellent."
HVAC & Plumbing FAQ
for Allenstown, NH
Do you service Allenstown, NH?
Yes. Allenstown is one of our core service areas. We provide heating, air conditioning, plumbing, and electrical services throughout Allenstown and the surrounding Merrimack County area. Call 603-623-0412 for a free estimate.
How quickly can you respond in Allenstown?
Our Bedford headquarters is about 20 minutes from Allenstown. We typically schedule service within 1-2 business days, with same-day availability for emergencies. For urgent heating or cooling issues, call us directly at 603-623-0412.
Do you offer emergency service in Allenstown?
Yes. We provide 24/7 emergency HVAC service in Allenstown for all existing customers. No heat or hot water? Call 603-623-0412 any time, day or night, weekends and holidays included.
Are there heating or cooling rebates available in Allenstown?
Allenstown homeowners may qualify for NHSaves rebates through Eversource, Unitil, or Liberty Utilities, plus NEHPA rebates on qualifying cold-climate heat pumps. We'll help you identify every rebate that applies to your home and equipment. Just ask when you call for your 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 Allenstown?
Oil remains common in Allenstown's older homes. Liberty Utilities provides natural gas in the denser Suncook Village area, so A.J. LeBlanc Heating completes gas replacements and oil-to-gas conversions where service is available at the address. Homes beyond gas service may use oil, propane, electricity, or cold-climate heat pumps. Manufactured homes require correctly sized equipment and components approved for that housing type, and we evaluate the existing system and ductwork before selecting a replacement. Whatever system you have, we service it. If it's time to replace, we'll walk you through all the options honestly.
Also Serving Towns Near Allenstown
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.