HVAC, Plumbing & Electrical
in Derry, NH
A.J. LeBlanc Heating serves Derry and Southern NH, family-owned since 1928. Licensed technicians, honest estimates, and 24/7 emergency service.
We Know
Derry Homes.
Derry is the most populous community in Rockingham County, and that size shows in how the town is put together. Older neighborhoods sit close together around the village center. Denser subdivisions filled in during the I-93 growth years. The roads out toward East Derry, Chester, and Auburn turn rural, with farmhouses on bigger lots. No two neighborhoods look quite alike, so Derry is a varied town to work in.
Housing: Just over half of Derry's homes went up in the 1970s and 1980s, and the 1980s was the single busiest decade. Ranches, capes, and split-levels from that stretch fill much of the town, and the median home dates to around 1983. Closer to the village center the houses run older, some from before 1940. About a third of Derry's housing units are multi-family: two-family homes, condos, and apartments, a bigger share than you'll find in most surrounding towns. Toward the town lines you start seeing newer subdivisions along with rural lots and older farmhouses.
Heating: Most of Derry heats with oil, especially the older parts of town, and plenty of homes run on propane. Most of the town has no natural gas service at all. A natural gas main runs only along a short stretch of the I-93 corridor, provided by Liberty Utilities. Replacing heating systems is a big part of our work here, and interest in heat pumps continues to grow as homeowners compare their oil and propane costs with other heating options. The most common call we get in Derry is an older oil-heated ranch with a boiler approaching replacement age.
Cooling: Many Derry homes were built around a boiler, so they have no ductwork for central air. Ductless mini splits are the fix in those houses: one outdoor unit feeds a few indoor mini-split units, giving you cooling in summer and efficient heat in the cold months, all without tearing open ceilings. Where newer subdivision homes already have ductwork, we install and replace central A/C. In the two-family homes and condos around town, we size the cooling for each separate zone so every home stays comfortable.
Complete Home Services
for Derry 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 Derry. Annual maintenance and 24/7 emergency response.
Heating ServicesAir Conditioning
Central A/C and ductless mini-split installation and service in Derry. 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 Derry homes.
Plumbing ServicesElectrical
Panel upgrades, generators, EV chargers, and electrical repair for Derry homeowners. Licensed NH electricians.
Electrical Services
Furnaces, Boilers &
Heat Pumps
We install and service all heating equipment in Derry. 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 Derry 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 Derry.
Trusted Since 1928.
A lot of Derry's older oil and propane systems are ready for replacement. The utility rooms in Derry's older ranches and split-levels are tight, so we take our time getting the sizing right. We'll run the numbers with you on staying with your current fuel versus moving to a heat pump. We handle the boiler and furnace replacements, plus the plumbing and electrical a fuel change usually brings. We're in Derry constantly, so we're quick to get to you.
Based in Bedford, about 20 minutes from Derry
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
"We depend on A.J. Leblanc HVAC to keep our system in top condition so we are cool in the summer and warm in the winter."
"Very professional presentation and prompt response to any of my questions."
"Technicians were prompt, cleaned the work area, and answered any questions we had. Would definitely use this company again."
HVAC & Plumbing FAQ
for Derry, NH
Do you service Derry, NH?
Yes. Derry is one of our core service areas. We provide heating, air conditioning, plumbing, and electrical services throughout Derry and the surrounding Rockingham County area. Call 603-623-0412 for a free estimate.
How quickly can you respond in Derry?
Our Bedford headquarters is about 20 minutes from Derry. 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 Derry?
Yes. We provide 24/7 emergency HVAC service in Derry 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 Derry?
Derry 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 Derry?
Most of Derry heats with oil, especially the older parts of town, and plenty of homes run on propane. Most of the town has no natural gas service at all. A natural gas main runs only along a short stretch of the I-93 corridor, provided by Liberty Utilities. Replacing heating systems is a big part of our work here, and interest in heat pumps continues to grow as homeowners compare their oil and propane costs with other heating options. The most common call we get in Derry is an older oil-heated ranch with a boiler approaching replacement age. 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 Derry
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.