HVAC, Plumbing & Electrical
in Hopkinton, NH
A.J. LeBlanc Heating serves Hopkinton 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 Hopkinton 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 Hopkinton, with 24/7 emergency service available.
Heating ServicesAir Conditioning
We install and service central A/C and ductless mini split systems in Hopkinton. 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 Hopkinton homes.
Plumbing ServicesElectrical
Our licensed New Hampshire electricians handle panel upgrades, standby generators, EV chargers, and electrical repairs for Hopkinton homeowners.
Electrical Services
We Know
Hopkinton Homes.
Hopkinton covers about 45 square miles west of Concord and includes the villages of Hopkinton, Contoocook, and West Hopkinton. A.J. LeBlanc Heating serves historic village properties, rural homes, and newer neighborhoods closer to I-89.
Housing: About 87 percent of Hopkinton's housing units are single-family homes, with a relatively small multi-family share. Roughly one-third of the housing predates 1940, more than half was built before 1970, and the median home dates to about 1968. Older colonials and farmhouses surround the villages, while 1970s and 1980s neighborhoods and later construction near I-89 add several more building eras. That range produces a broad mix of boilers, furnaces, ductwork, and mechanical spaces.
Furnaces, Boilers &
Heat Pumps
Heating in Hopkinton
Hopkinton has no natural gas service, so homes use oil, propane, electricity, and heat pumps. Older colonials and farmhouses near the villages often have oil boilers, while later neighborhoods include oil- and propane-fired boilers and furnaces. A.J. LeBlanc Heating services and replaces that equipment and installs cold-climate heat pumps for homeowners considering an alternative. We evaluate the home's distribution system, heating needs, fuel goals, and electrical capacity before recommending a path.
Heating Services We Provide
We install and service all types of heating equipment in Hopkinton. 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 Hopkinton
Many pre-1940 and mid-century Hopkinton homes use boilers and radiators and lack a duct system for conventional central cooling. A properly designed mini split can deliver zoned cooling and supplemental heat with limited disruption to plaster and finished walls. Homes with suitable forced-air ducts can often use central A/C or ducted heat-pump equipment. A.J. LeBlanc Heating plans the system around the building layout, existing equipment, and electrical capacity.
Cooling Services We Provide
Hopkinton 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 Hopkinton
Hopkinton has two water precincts with different sources. Hopkinton Village Precinct uses gravel-packed groundwater wells and adjusts pH before distribution, while Contoocook Village Precinct uses surface water from Bear Pond in Warner. Homes outside the precincts use private wells.
Public-water customers should begin with their precinct report and may choose whole-house activated carbon or an under-sink carbon or reverse osmosis system for a specific taste, odor, or drinking-water goal. A.J. LeBlanc Heating starts with private-well samples collected for an independent laboratory and uses the results to select sediment, hardness, ultraviolet, or arsenic treatment.
Water Treatment Services We Provide
We provide water-treatment installation and service in Hopkinton. 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 Hopkinton
Hopkinton's old farmhouses, village homes, and later subdivisions contain plumbing from many construction periods. A.J. LeBlanc Heating repairs leaking faucets, running toilets, failed shutoff valves, damaged supply pipes, slow drains, and water heaters. We also replace deteriorated cast-iron drain sections when the pipe, rather than another ordinary blockage, is causing repeated trouble.
At private-well properties, we service well tanks and pressure switches, with each repair kept focused on the failed plumbing component.
Plumbing Services We Provide
We handle plumbing repairs and equipment replacements for Hopkinton 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 Hopkinton
The team you trust for heating and cooling in Hopkinton 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 Hopkinton.
Trusted Since 1928.
A.J. LeBlanc Heating serves Hopkinton, Contoocook, and West Hopkinton. Our work spans aging oil boilers, propane equipment, central and ductless heat pumps, plumbing, electrical systems, and water treatment in homes ranging from pre-1940 farmhouses to newer subdivisions. We size equipment carefully, plan around tight utility rooms and older finishes, and leave the work area clean. The company has been family-owned since 1928.
Based in Bedford, about 25 minutes from Hopkinton
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
"These people are the best. I have been a customer for years. I have always received excellent, courteous, service. They are on time, their technicians are well trained and experienced and leave the work site neat and clean when done."
"Since using A.J. LeBlanc Heating for all my HVAC maintenance and service, I've Had no concerns that systems are in tip top shape."
"Honest and reliable service. Always satisfied."
HVAC, Plumbing & Water FAQ
for Hopkinton, NH
Do you service Hopkinton, NH?
Yes. Hopkinton is one of our core service areas. We provide heating, air conditioning, plumbing, and electrical services throughout Hopkinton and the surrounding Merrimack County area. Call 603-623-0412 for a free estimate.
How quickly can you respond in Hopkinton?
Our Bedford headquarters is about 25 minutes from Hopkinton. 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 Hopkinton?
Yes. We provide 24/7 emergency service in Hopkinton. Call 603-623-0412 any time, day or night, including weekends and holidays.
Are there heating or cooling rebates available in Hopkinton?
Hopkinton 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 Hopkinton?
Heating systems vary from one Hopkinton 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 Hopkinton?
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 Hopkinton?
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 Hopkinton?
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 Hopkinton?
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 Hopkinton
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.