Residential Backup Power
A well planned backup system keeps the important things running when the power goes out.
Discuss Generator Service Call NowBe ready when the power goes out
An outage takes out more than the lights. Your heat, the refrigerator, the sump pump, the well pump, and the internet all go with it.
John Calhoun Electric & HVAC provides residential generator services for homeowners throughout Roanoke, VA and nearby communities. We help with whole-home generator planning, electrical connections, transfer equipment, service, maintenance, and troubleshooting related to backup-power systems.
The right setup depends on what you want to keep running and how much electrical power those loads require.
Choose what matters most
Some homeowners want backup power for a focused group of essential circuits. Others want a larger system designed to support most or all of the home. Planning starts by identifying the equipment that matters during an outage.
A system supporting a refrigerator, furnace, sump pump, and several lights has different requirements from one intended to carry most of the home's electrical demand. Reviewing the actual loads helps define the right system.
More than the generator itself
A permanently installed generator works as part of the home's larger electrical system. Safe operation depends on properly selected transfer equipment, breakers, wiring, and coordination with the existing panel and service.
In one service call, a bedroom and closet had lost power but the problem was not in either room. Troubleshooting led to a tripped breaker inside the generator transfer equipment. Once the breaker was identified and reset, power was restored.
That experience illustrates why generator-related power trouble must be traced through the complete electrical system.
Whole-home generator planning
Before selecting a generator, we review the home and the equipment the system is expected to support. Our work history includes planning and estimating for a whole-house Generac system.
We review the existing service, panel configuration, breakers, and capacity as part of planning how backup power will connect to the home. If capacity or condition is a concern, we explain whether panel replacement should be considered.
We identify the lighting, outlets, pumps, refrigeration, and other circuits you consider most important during an outage.
Heating and cooling systems, electric appliances, pumps, and other major equipment must be included in load planning when you want them supported.
The equipment location affects the electrical layout, wiring route, transfer setup, and overall project planning.
Transfer equipment manages the change between utility and generator power and prevents both sources from supplying the electrical system simultaneously.
Tell us what you plan to add later so the system fits the house you will have, not just the one you have now.
Service and maintenance
Getting your standby generator checked regularly helps find common issues like a dead battery early, and not during an outage.
Our team services the panels, breakers, wiring, and transfer equipment connecting a generator to the home. If an existing backup-power system is not operating correctly, our diagnostic service can determine what needs attention.
Electrical and HVAC experience
HVAC equipment pulls hard, especially compressors, blower motors, and electric backup heat. Those demands must be considered when a generator is selected.
We do both the electrical and the HVAC, so we size the generator around what your equipment actually draws.
Generator FAQs
The right capacity depends on the circuits and equipment you want to power. The electrical loads should be reviewed before a generator is selected.
It is a permanently installed backup generator designed to supply a large portion of a home's electrical system. How much it runs depends on the generator size and what you tie to it.
It manages how the home changes between utility and generator power and helps prevent both sources from feeding the electrical system at the same time.
Possibly. HVAC pulls a lot. The generator and the wiring have to be sized for the exact equipment you want running.
Yes, and most people do. You pick the priorities. Heat, the refrigerator, the pumps, some lighting and outlets. New connections use the same dedicated-circuit work as any other equipment.
Yes. A permanently installed generator integrates with the home's electrical system through properly installed transfer equipment and wiring. The existing panel and service are reviewed during planning.
Follow the manufacturer's service requirements. The appropriate schedule also depends on the generator and how often it operates. Regular checks help find problems before an outage.
Yes. Generator trouble usually lands on breakers, the transfer switch, wiring, or controls. We inspect the electrical side and tell you what needs work.
Generator services in Roanoke
John Calhoun Electric & HVAC provides generator planning, electrical connections, maintenance, and generator-related troubleshooting for homeowners throughout the Roanoke area.
If you are considering a standby generator, need service for an existing system, or are having trouble with your backup-power setup, contact our team to discuss your options.
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