Standby Generator Installation in Southern NH
Automatic backup power for your heat, water, and home when a NH storm takes out the grid. Whole-home standby generators installed by licensed electricians, with 0% financing and a free written estimate.
Automatic Backup Power in a NH Storm
New Hampshire storms can interrupt power at any time. A standby generator detects an outage, starts automatically, and transfers the circuits the system was designed to support. We size the generator and review load management with you so you know what will run during an outage.
A Trusted Southern NH Choice, Family-Owned Since 1928
Automatic Operation
Standby generators detect an outage and start automatically. After the programmed startup delay, the transfer switch moves the selected circuits to generator power.
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 system is sized around the electrical loads you want available, including heat and, where applicable, the home's well pump. Depending on generator size and load management, the design may support the entire home or selected priority loads.
- Generac and Kohler 11kW to 26kW systems
- Automatic transfer switch included
- Runs on natural gas or propane
- Supports the HVAC, well pump, appliances, and other circuits included in the final system design
- 5-year limited warranty on Generac Guardian generators
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. Ask your sales team about current offers, eligibility, and available terms.
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 generator size depends on the circuits and equipment you want to run, their normal and starting loads, the fuel supply, and whether load management will be used. Our electrician reviews those conditions and completes the required load calculation before recommending a size.
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?
Installation timing depends on the generator, fuel connection, electrical scope, permit, and inspection schedule. We coordinate the work and give you the project schedule before installation begins.
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.