One team for the whole project
Most generator installs involve three trades. We take care of sizing, placement and the gas line ourselves, and coordinate the electrical work with our partner electrician — so you have one company and one point of contact from quote to startup.
We size your system around the things you need to keep running, including heat strips in winter, not just your home's square footage.
Whole-home generator installation
Automatic backup power sized to the systems you rely on, installed by a Generac dealer.
Generator repair
Fault codes, missed exercise cycles or a generator that didn't kick on? We'll diagnose it and give you a firm price.
Generator maintenance
Keep your generator ready for the next storm with regular service based on Generac's schedule.
Why homeowners choose On Call for backup power
Family-owned since 2011 with more than 100 years of combined experience on our team. Generac dealer, licensed in South Carolina (Mechanical License CLM.111515 MC), insured and BBB Accredited, with a 4.9-star rating from 298 Google reviews.
A few common questions.
Are you a Generac dealer?
Yes. On Call is a Generac dealer, and we install, repair and maintain Generac home standby generators across Columbia and the Midlands.
Will a whole-home generator run everything at once?
It depends on how the system is sized. We start with the things you can't live without — AC or heat, refrigerator, well pump, medical equipment — and size the generator and load management around them, so you know exactly what will run during an outage.
Can you give me a price over the phone?
We can talk through your priorities by phone, but the final size and price come from a visit to your home, where we look at your electrical panel, gas supply and where the generator will sit.
Can I finance a generator?
Yes, financing is available for qualifying generator installations, subject to credit approval. Your technician can walk you through the options in person.
My generator didn't start during an outage. What do I do?
Call (803) 781-4357 — emergency service is available 24/7. Have the model and any message on the controller ready if you can see it safely.
