Whole house generator installers in South Carolina
Power, cost, permits & sizing ↓South Carolina
123 South Carolina companies install and service home standby generators, including 32 generator specialists and factory-authorized dealers. Company and brand details come from each company's own website — for warranty work, confirm current dealer status with the manufacturer directly.
123 companies
Generator specialists (10)
Carolina Generator Solutions Generator specialist
Generator Power Systems Inc. Generator specialist
Generator Services, Inc. Generator specialist
Generator Supercenter of Charleston Generator specialist
Lowcountry Generators Generator specialist
Moxy Power Systems Generator specialist
Palmetto Generators LLC Generator specialist
PowerChampions of Greenville Generator specialist
SelectPWR LLC (Selectric LLC) Generator specialist
The Generator Guy LLC Generator specialist
Electrical contractors that install generators (54)
Becker Electric, Inc. Electrical contractor
Bluffton Electric LLC Electrical contractor
Bolt Electric Inc Electrical contractor
C&C Myers Heating, A/C, Plumbing, & Electrical Electrical contractor
Carolina Temperature Control (CTC / Orange Trucks) Electrical contractor
Dave's Air Conditioning, Plumbing & Electrical Electrical contractor
Deep South Electrical Electrical contractor
Easley Electric, Inc. Electrical contractor
EmergenServe Electrical contractor
Engineered Electrical Solutions Electrical contractor
Express Service Group, Inc Electrical contractor
Fogle & Sons Electric Electrical contractor
Freeman Electrical Solutions Electrical contractor
Generations Electric Electrical contractor
Gloudeman Electric Electrical contractor
Gosling Electrical Service Electrical contractor
Greenville Electric LLC Electrical contractor
Greg Beverly Services, Inc. Electrical contractor
Hinds Electrical LLC Electrical contractor
IRV Plumbing, Electric & HVAC Electrical contractor
Isom Electric Electrical contractor
Johnathon Brown Electric Electrical contractor
Kirk Services, LLC Electrical contractor
Live Oak Electrical Services Electrical contractor
MCA Electric Electrical contractor
McGuirt Electric LLC Electrical contractor
MGC Electric Electrical contractor
Modern Electrical and Generator Innovations LLC Electrical contractor
One Call Electric Electrical contractor
One More Hand Electrical Services Electrical contractor
Osteen Electrical Services LLC Electrical contractor
Planet Connections Electrical Service Electrical contractor
Power Pro Electric, LLC Electrical contractor
Powerful Electrical LLC Electrical contractor
Priority Electrical Service Electrical contractor
Quality Electrical Contractors Electrical contractor
Quality Electrical Systems (QES) Electrical contractor
Redland Electric Electrical contractor
Rudd Plumbing Heating Air & Electrical Electrical contractor
Rytec Electric Electrical contractor
SABO Electric, Heating & Air Electrical contractor
SageCare Electric LLC Electrical contractor
SC Wired Electrical Services Electrical contractor
Snoddy Electrical Service, LLC Electrical contractor
Southern Plumbing & Electrical Electrical contractor
Starnes Electric LLC Electrical contractor
Sunrise Electric Co. Electrical contractor
Teleios Plumbing & Electrical Electrical contractor
True Electric Electrical contractor
Unity Power and Light Electrical contractor
Viper Services Electrical contractor
Wadford Electrical Contractors Electrical contractor
Wright Electrical LLC Electrical contractor
Zippy Electric, LLC Electrical contractor
HVAC & plumbing contractors that install generators (37)
1st Choice Quality Heating, Air, & Plumbing HVAC / plumbing contractor
2nd Wind HVAC HVAC / plumbing contractor
AirOne Heating & Air Conditioning HVAC / plumbing contractor
All Plumbing HVAC / plumbing contractor
Aptus Home Services HVAC / plumbing contractor
B & K Services HVAC / plumbing contractor
Bentley's Heating and Air HVAC / plumbing contractor
Brian's Heating & Cooling HVAC / plumbing contractor
Carolina Custom Air HVAC / plumbing contractor
Carolina Heating Service Inc. HVAC / plumbing contractor
Carolina HVAC & Electrical HVAC / plumbing contractor
Carrillo Heating & Air, LLC HVAC / plumbing contractor
Chisholm Plumbing, Heating & Air Conditioning HVAC / plumbing contractor
Climate Control Systems of Greenwood INC HVAC / plumbing contractor
Conway Air Conditioning HVAC / plumbing contractor
Corley Pro HVAC / plumbing contractor
Davis Climate Control HVAC / plumbing contractor
Dipple Services (Dipple Heating, Cooling, Plumbing & Electrical) HVAC / plumbing contractor
Elite Air & Heat LLC HVAC / plumbing contractor
Five Star Plumbing Heating Cooling and Electrical HVAC / plumbing contractor
Fogel Services Inc. HVAC / plumbing contractor
Fulmer Heating & Cooling HVAC / plumbing contractor
Home Comfort Systems HVAC / plumbing contractor
Joel Greene's Heating & Air Inc. HVAC / plumbing contractor
LimRic Plumbing, Electrical, Heating & Air HVAC / plumbing contractor
McGee Heating & Air HVAC / plumbing contractor
Noble Air & Heat LLC HVAC / plumbing contractor
PECO Heating & Cooling HVAC / plumbing contractor
Preferred Home Services HVAC / plumbing contractor
Quality Service Company HVAC / plumbing contractor
Robert Hughes Heating & Cooling HVAC / plumbing contractor
SC Heating And Air HVAC / plumbing contractor
ServiceWorks Mechanical Solutions, LLC HVAC / plumbing contractor
Summit Services HVAC / plumbing contractor
Swift Services HVAC / plumbing contractor
Waldrop Plumbing Air Electric HVAC / plumbing contractor
Watkins Mechanical HVAC / plumbing contractor
Power in South Carolina
South Carolina faces the outage threat from two directions at once. On the coast it's hurricanes: Hugo came ashore north of Charleston in 1989 and left parts of the Lowcountry dark for weeks, and Matthew, Florence, and Ida-remnant storms have knocked out hundreds of thousands of customers since. Inland it's ice — the February 2014 storm cut power to roughly 346,000 South Carolina homes across the Midlands and Upstate — and in 2024 Helene proved a hurricane can drive that far inland too, causing what local officials called Hugo-level damage in the Upstate. When the grid goes down here it can stay down, because the downed trees that cause the outage also block the crews sent to fix it. A whole-home standby generator starts on its own within seconds and keeps the AC, heat, well pump, refrigerator, and medical equipment running on natural gas or propane until the utility catches up.
Generator permits & codes in South Carolina
- Who issues permits
- Your city or county building/inspection department issues the permit and inspects the work, enforcing the statewide codes adopted by the South Carolina Building Codes Council under the Department of Labor, Licensing and Regulation (LLR). The electrical work must be done by a licensed residential electrician; South Carolina licenses residential electrical trades through the Residential Builders Commission at LLR.
- Timeline
- Varies by jurisdiction. Most residential generator permits are issued over the counter or online without plan review, with a single electrical inspection (plus a mechanical/gas inspection where a gas line is run) once the work is complete.
- Code in force
- The 2020 National Electrical Code, adopted as part of the 2021 South Carolina building codes that took effect January 1, 2023. A 2024 code cycle is in the adoption pipeline at the Building Codes Council but is not yet effective, so the 2020 NEC remains the electrical code in force.
- Major utilities
- Dominion Energy South Carolina serves the Midlands and much of the Lowcountry (Columbia and the Charleston area); Duke Energy Carolinas covers the Upstate (Greenville, Spartanburg, Rock Hill) and Duke Energy Progress the Pee Dee; Santee Cooper and roughly twenty electric cooperatives cover the coast and rural areas. Duke Energy tells customers a permanently installed generator must be wired through a transfer switch by a licensed electrician so it can never backfeed the grid and endanger line crews.
- Worth knowing
- A large share of South Carolina homes are ultimately powered by a state agency: Santee Cooper — the South Carolina Public Service Authority, created by the state in 1934 — serves Berkeley, Georgetown, and Horry counties directly and wholesales power to the co-ops, reaching about two million people. Separately, note the low bar for licensed work: residential electrical jobs over just $500 require a licensed electrician, far below the $5,000 residential-builder and $10,000 commercial thresholds, so a generator install is always licensed work.
Common questions about whole house generators in South Carolina
How much does a standby generator cost installed in South Carolina?
For a typical South Carolina home, budget roughly $9,000–$15,000
all-in for a whole-house air-cooled standby unit (about 18–26 kW):
the generator, the automatic transfer switch, a pad, the fuel hookup,
the electrical work, and permits. A smaller essentials-only unit
(10–14 kW) runs about $6,000–$9,000, and liquid-cooled units for
large homes climb past $20,000. Fuel is the swing factor: Columbia,
the Upstate, and the Charleston area mostly have natural-gas service,
but much of the rural Lowcountry, Pee Dee, and co-op territory has no
gas main, so those installs run on a propane tank that adds to the
up-front cost.
Do I need a permit to install a generator in South Carolina?
Yes. A standby generator install requires an electrical permit — and
usually a mechanical or gas permit — pulled from your city or county
building department and followed by an inspection. The electrical work
is licensed work: South Carolina requires a licensed residential
electrician for any residential electrical job over $500 (labor and
materials), a threshold every real generator install clears, so a
homeowner can't legally hand the wiring to an unlicensed handyman. A
reputable installer pulls the permits and schedules the inspection as
part of the job — treat anyone who offers to skip the permit as a red
flag.
What size generator do I need in South Carolina?
That comes down to a load calculation, which any good installer runs
during the site visit. In South Carolina three loads drive sizing.
Summer air conditioning is nearly continuous in the Lowcountry heat and
humidity, and the compressor's start-up surge sets a floor on capacity.
Most homes heat with a heat pump backed by electric-resistance strips
that pull hard on a cold Upstate night. And rural homes on a private
well lose their water the moment the power quits. Essentials only fits
in 10–14 kW; a typical whole house lands at 18–26 kW; a
soft-start on the AC can keep the unit — and the price — smaller.
Generac, Kohler, Cummins, or Briggs & Stratton — does the brand matter?
All four make reliable home standby units; the installer and the
service relationship afterward matter more than the badge. Generac has
the largest dealer network in South Carolina, so parts and warranty
techs are easy to find from the Upstate through the Midlands to the
coast; Kohler and Cummins have strong dealers in the larger metros. A
factory-authorized dealer can perform warranty service on its own
brand, which is worth weighing when two brands otherwise look alike.
Use the brand pages here to see who installs and services each one near
you.
How long does installation take?
The on-site work is usually one to two days once the unit is in hand:
set the pad, run the gas and electrical, mount the transfer switch, and
commission it. The calendar time is longer — a site visit and quote,
then permitting, then the inspection. After a major storm like Helene
that timeline stretches, because every house on the block wants a
generator and an installer at the same moment. Ordering ahead of
hurricane season, rather than the week after a storm, is how you avoid
competing for both the unit and the crew.
What maintenance does a standby generator need?
An annual service — oil and filter, spark plugs on schedule, a battery
check, and a load test — on top of the weekly self-test the unit runs
on its own. South Carolina's long, humid summers are hard on the
battery and enclosure, and a Lowcountry or Grand Strand install near
the coast wants a regular corrosion check against the salt air. The
point is to prove the unit works before the season it's needed, not
during it. Many installers listed here offer maintenance plans, and
several service brands they don't sell. Neglected maintenance is the
most common reason a generator fails to start when the grid finally
goes down.