HVAC, Plumbing & Electrical
in Derry, NH
A.J. LeBlanc Heating serves Derry 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 Derry 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 Derry, with 24/7 emergency service available.
Heating ServicesAir Conditioning
We install and service central A/C and ductless mini split systems in Derry. 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 Derry homes.
Plumbing ServicesElectrical
Our licensed New Hampshire electricians handle panel upgrades, standby generators, EV chargers, and electrical repairs for Derry homeowners.
Electrical Services
We Know
Derry Homes.
Derry is Rockingham County's most populous community, with housing that changes noticeably across town. A.J. LeBlanc Heating serves compact neighborhoods near the village center, subdivisions built during the I-93 growth years, and more rural properties toward East Derry, Chester, and Auburn.
Housing: More than half of Derry's homes were built during the 1970s and 1980s, with the 1980s representing the town's busiest building decade. Ranches, capes, and split-levels from that period are common, and the median home dates to about 1983. Pre-1940 houses remain near the village center, while newer subdivisions, larger rural lots, and farmhouses appear closer to the town lines. About one-third of Derry's housing units are in two-family homes, condominiums, apartments, and other multi-family buildings.
Furnaces, Boilers &
Heat Pumps
Heating in Derry
Oil heat remains common in Derry, particularly in its older neighborhoods, and many other homes use propane. Natural gas service is limited to a short section of the I-93 corridor through Liberty Utilities. A.J. LeBlanc Heating replaces oil and propane furnaces and boilers, services gas equipment where utility service is available, and installs cold-climate heat pumps for homeowners considering another option. We evaluate the home's heating needs, existing piping or ductwork, fuel availability, and electrical capacity before recommending a replacement.
Heating Services We Provide
Our team installs, repairs, and services heating equipment throughout Derry. We respond quickly for breakdowns, regular maintenance, and complete system replacements.
- 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 Derry
Many Derry ranches, capes, split-levels, and older homes were built around boiler heat and would need new ductwork to use central A/C. A mini split system can add zoned summer cooling and efficient supplemental heat without extensive changes to finished walls or ceilings. Newer homes with suitable ductwork may accommodate central A/C or a ducted heat pump. In two-family homes and condominiums, A.J. LeBlanc Heating sizes and controls each zone for the living space it serves.
Cooling Services We Provide
We provide complete cooling service in Derry for central air conditioners, heat pumps, and ductless mini splits. Our team has installed thousands of ductless systems across Southern NH. We respond quickly for both unexpected breakdowns and complete 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 Derry
Derry's water source varies by neighborhood. The Core system purchases treated water from Manchester Water Works, while Autumn Woods, Meadowbrook, Rand-Shepard Hill, Willow Bend, and Woodlands use community wells. Those wells are chlorinated, and the town identifies iron filtration at Rand-Shepard Hill.
Other homes use individual private wells, so the bill or water-quality report is the best way to confirm the serving system. On public or community water, A.J. LeBlanc Heating can install activated carbon to improve taste or an under-sink carbon or reverse osmosis system for drinking and cooking water. For a private well, independent laboratory results guide treatment for sediment, iron, manganese, measured hardness, sulfur odor, confirmed bacteria, or arsenic.
If the laboratory confirms radon in well water, we can share contact information for an independent mitigation company.
Water Treatment Services We Provide
We install and service water-treatment systems for Derry homes. When a private-well test is needed, we collect a sample and send it to an independent laboratory. We use the results to size anything from an under-sink drinking-water filter to a whole-house system.
- 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 Derry
Derry's older houses, multi-family buildings, and later subdivisions contain many generations of household plumbing. A.J. LeBlanc Heating repairs dripping faucets, running toilets, leaking pipes, failed valves, slow drains, and water-heater problems. Some older Derry properties still contain cast-iron drain sections, which we can replace when cracking, corrosion, or internal restriction makes the piping unreliable.
For homes with private wells, we also service the home's well tank and pressure switch, and we plan access carefully when a repair affects more than one unit.
Plumbing Services We Provide
Derry homeowners can call us for fixture repairs, water-heater work, household piping, drains, and service for well tanks and pressure switches. Our plumbers begin with a careful diagnosis.
- 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 Derry
A.J. LeBlanc is already trusted for heating and cooling in Derry. You can also call us for electrical work completed by licensed New Hampshire electricians.
Electrical Services We Provide
From upgrading an electrical panel to installing a standby generator or EV charger, our team is ready to help. We respond quickly and complete every job to code.
- Electrical Panel Upgrades
- Standby Generator Installation
- EV Charger Installation
- Lighting, Outlets & Switches
- Electrical Repair & Service
Local to Derry.
Trusted Since 1928.
Derry is a regular part of A.J. LeBlanc Heating's service area for both planned projects and urgent repairs. We help homeowners compare a like-for-like furnace or boiler replacement with alternatives such as a cold-climate heat pump, then coordinate related plumbing or electrical work when needed. Our family-owned company has served New Hampshire since 1928, and we base every recommendation on the home in front of us.
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 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
"We have been very satisfied with A.J. LeBlanc Heating's installation and service. The workmanship and quality was above what I expected. Thank you!"
"Responsible service; good people to talk to both at the office and in the field. Very responsive to the customer's needs."
"The experience was superior from the first phone call, understanding my problem and the urgency. Had service at my home within hours and repaired issue. Professional, knowledgeable and extremely helpful."
HVAC, Plumbing & Water 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 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 Derry?
Yes. We provide 24/7 emergency service in Derry. Call 603-623-0412 any time, day or night, including weekends and holidays.
Are there heating or cooling rebates available in Derry?
Derry 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 Derry?
Heating systems vary from one Derry 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 Derry?
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 Derry?
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 Derry?
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 Derry?
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 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.