Standby Generator Installation in Southern NH
Never lose heat, water, or power in a NH storm. Automatic whole-home standby generators installed by licensed electricians, with 0% financing and a free written estimate.
Never Lose Power in a NH Storm
New Hampshire loses power more often than most of the country due to ice storms and nor'easters. A whole-home standby generator turns on automatically within seconds of an outage and runs your entire home until utility power returns.
A Trusted Southern NH Choice, Family-Owned Since 1928
Automatic Operation
Standby generators detect an outage and start automatically. Power restored in 10 to 20 seconds.
Generac and Kohler
We install Generac and Kohler generators, two of the best-known names in home standby power.
Licensed Electricians
Generator installation requires a licensed electrician and a licensed NH gas fitter for the gas connections. A.J. LeBlanc Heating holds both licenses.
Complete Installation
We handle everything: equipment, electrical, gas line, transfer switch, permits, and inspections.
Whole-Home Standby Generator Systems
A whole-home standby generator protects your entire house including your heating system, well pump, and all appliances.
- Generac and Kohler 11kW to 26kW systems
- Automatic transfer switch included
- Runs on natural gas or propane
- Protects HVAC, well pump, and all appliances
- 10-year warranty on Generac Guardian series
Generator Service and Maintenance
Generators require annual maintenance to ensure they start reliably when needed. We offer comprehensive annual maintenance.
- Annual maintenance available
- Oil and filter changes
- Battery and starter system checks
- Transfer switch inspection and testing
How We Price Generator Installation
Free Written Estimates
An electrician and gas fitter visit your home, run a load calculation, check your panel and gas/propane setup, and give you a written quote. No charge, no obligation.
All-In Project Pricing
One number covers the generator, automatic transfer switch, electrical and gas-line work, concrete or gravel pad, permits, and inspection.
Annual Maintenance
Annual maintenance keeps your generator ready when you need it. Oil change, filter, battery check, transfer-switch inspection.
No Commission, No Upsell
The electricians and gas fitters who quote your project are not on commission. We size the generator to your home's actual load, not the largest unit we could sell.
0% Financing Available
Spread the cost with 0% promotional financing on qualifying installations. Promotional terms start at 12 months, sometimes longer. Ask your Home Comfort Advisor about current offers so you can move forward now.
Reviews From Southern NH Homeowners
They are knowledgeable and courteous. They installed a ductless system so I continue to use their service for yearly maintenance of my furnace and ductless units.
Claudia MichaelDuctless Mini Split customerGood reputation!
Bill HallSatisfied CustomerI found LeBlanc to be a friendly company. When I called, I was greeted by the office staff who scheduled my appointment for a yearly cleaning. Three days later the technician came over and cleaned the system. He did a great job like no one else has ever done before. He also checked the system for proper performance. I was very happy with his work and would recommend A.J. LeBlanc HVAC to anyone who is looking for a GOOD firm to service their systems. I would also recommend them for any new installation I guarantee that they will get reliable service.
Edward LeducSatisfied CustomerRead more reviews on our testimonials page.
Free Generator Installation Estimate
Call or fill out the form. We will assess your home's power needs, recommend the right system size, and provide a written estimate.
Frequently Asked Questions
How much does standby generator installation cost in NH?
Whole-home generator installation in Southern NH typically runs $10,000 to $24,500 depending on generator size, distance to gas supply, and electrical panel requirements.
What size generator do I need?
The right size depends on your home's electrical load. A 14kW generator typically covers a 2,000 to 2,500 square foot home. We perform a load calculation as part of the free estimate.
Do generators run on natural gas or propane?
Generac and Kohler standby generators run on either. If you have natural gas service, the generator connects directly to your gas line. Propane requires a dedicated tank.
How long does generator installation take?
Most installations are completed in two to three days. Gas line and electrical work happen in parallel to minimize the timeline.
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.