Whole house generator installers in Indiana
Power, cost, permits & sizing ↓Indiana
89 Indiana companies install and service home standby generators, including 27 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.
89 companies
Generator specialists (4)
Elevated Power Generators Generator specialist
Michiana Generators Generator specialist
NWI Generator Generator specialist
Onsite Generator Solutions Generator specialist
Electrical contractors that install generators (31)
Accutek Solar Electrical contractor
Amps & Volts Electric Electrical contractor
Berger Electric Electrical contractor
Branch Electric Electrical contractor
Burtner Electric Electrical contractor
Christian Electric, LLC Electrical contractor
Coppermen Electric Electrical contractor
Cruz Electric & Handy Services LLC Electrical contractor
D. T. Electric, LLC Electrical contractor
Expert Electric Electrical contractor
Frye Electric, Inc. Electrical contractor
JBarr Electric Electrical contractor
Jerry Smith Electric, Inc. Electrical contractor
Josh Lamb Electrician LLC Electrical contractor
Knee's Electrical Service Electrical contractor
Lafayette Mechanical Services Electrical contractor
Lerche & Sons Electric Electrical contractor
Lohrum Electrical LLC Electrical contractor
McCormick Electrical Services Inc. Electrical contractor
Meyer's Companies, Inc. Electrical contractor
Mister Quik Home Services Electrical contractor
Norton Electric LLC Electrical contractor
Powell's Plumbing & Electrical Inc. Electrical contractor
R&M Electrical Services Electrical contractor
Ronald L. Dunaway Electric Electrical contractor
SamCo Electric, Inc Electrical contractor
Skill Electric Electrical contractor
Top Phase Electric Electrical contractor
Twisted Electric LLC Electrical contractor
Williams Comfort Air Electrical contractor
Zachary Adam's Home Services Electrical contractor
HVAC & plumbing contractors that install generators (31)
A-Team Plumbing Services HVAC / plumbing contractor
Bader Services (Bader Mechanical Inc.) HVAC / plumbing contractor
Brackett Heating, Air & Plumbing HVAC / plumbing contractor
Brandt's Heating, Cooling & Electrical HVAC / plumbing contractor
Brian Schmitt Heating & Cooling, Refrigeration & Plumbing HVAC / plumbing contractor
Chapman Heating, Air Conditioning, Plumbing & Electrical HVAC / plumbing contractor
Cliff's Heating, AC, and Generator Professionals HVAC / plumbing contractor
Collier's Heating & Air Conditioning HVAC / plumbing contractor
DNA Heating and Cooling LLC HVAC / plumbing contractor
Ecofriendly Mechanical Heating and Cooling HVAC / plumbing contractor
Efficient Systems, Inc HVAC / plumbing contractor
Felger Hart Residential HVAC / plumbing contractor
Godby Heating Plumbing Electrical HVAC / plumbing contractor
Goff Heating & Air Conditioning HVAC / plumbing contractor
Great Lakes Heating And Air Conditioning HVAC / plumbing contractor
Gudorf Plumbing Heating Cooling Electrical HVAC / plumbing contractor
Home Comfort Experts HVAC / plumbing contractor
Kingdom Air HVAC / plumbing contractor
Korte Does It All Heating, Cooling, Electrical, Plumbing HVAC / plumbing contractor
LaCorte HVAC & Electric HVAC / plumbing contractor
Legacy Heating, Cooling, Plumbing & Electrical HVAC / plumbing contractor
McConnell Plumbing, Heating & Air Conditioning HVAC / plumbing contractor
Nardco Heating & Air Conditioning HVAC / plumbing contractor
Peterman Brothers HVAC / plumbing contractor
Regional Plumbing, Heating & Air HVAC / plumbing contractor
Reliable Comfort HVAC / plumbing contractor
Specialized Mechanical HVAC / plumbing contractor
Thermodyn, Inc. HVAC / plumbing contractor
Thornton Plumbing, HVAC & Electrical HVAC / plumbing contractor
Unique Heating & Cooling HVAC / plumbing contractor
Zip Heating and Cooling HVAC / plumbing contractor
Power in Indiana
Indiana sits in the Ohio Valley severe-weather corridor, where the big outages come from wind. The June 29, 2012 "super derecho" produced a 91 mph gust at Fort Wayne — the strongest June or July wind there in 61 years of records, and the highest reading of the entire multi-state event — and left hundreds of thousands of homes dark, the largest outage the northern utilities had seen since the remnants of Hurricane Ike swept through in September 2008 with a 63 mph gust clocked at the Indianapolis airport. Add the ice storms and the spring tornado season, and a lot of Hoosier homes lose power for days at a stretch. A whole-home standby generator starts on its own within seconds and keeps the furnace blower, the sump pump, the well pump, and the refrigerator running on natural gas or propane until the utility restores the line.
Generator permits & codes in Indiana
- Who issues permits
- Codes and licensing sit at different levels of government, which is the wrinkle to know. Building and electrical codes are adopted statewide by the Indiana Fire Prevention and Building Safety Commission, under the Department of Homeland Security. Electrician licensing, however, is entirely local — Indiana has no statewide electrician license, so cities and counties set their own qualifying and licensing rules. Permits and inspections are issued by the local building department where the home sits.
- Timeline
- Varies by jurisdiction. Because permitting and electrician licensing are handled locally, the permit-and-inspection sequence and its turnaround are set by each city or county building department rather than by a single statewide process.
- Code in force
- Indiana runs a notably lagging electrical code. The standalone Indiana Electrical Code (2009 edition, 675 IAC 17-1.8) still incorporates the 2008 National Electrical Code — roughly fifteen years behind the current model code — and an update to the 2023 NEC remains in committee rather than in force as of 2026. One- and two-family dwellings are governed by the Indiana Residential Code (based on the 2018 IRC), whose electrical provisions track a newer NEC than the standalone code, so confirm the exact edition your dwelling is inspected against with the local building department.
- Major utilities
- Five investor-owned utilities cover most of the state: AES Indiana in the Indianapolis area, Duke Energy Indiana across much of central and southern Indiana, NIPSCO in the north and northwest, Indiana Michigan Power (an AEP company) in the northeast around Fort Wayne, and CenterPoint Energy in the southwest around Evansville. Dozens of rural electric membership cooperatives (REMCs) and municipal systems serve the rest. A permanently installed generator must isolate from the grid through a transfer switch so it can never backfeed the lines and endanger repair crews.
- Worth knowing
- The pairing to plan around is a lagging code plus fragmented licensing. The statewide standalone electrical code still points at the 2008 NEC — among the most out-of-date in the country — while there is no state electrician license at all, so the qualifications your installer holds are set city-by-city and county-by-county. Which code edition your job is inspected against, and which license your contractor needs, can both change when you cross a jurisdiction line, so verifying the local authority up front matters more here than in states with a single statewide regime.
Common questions about whole house generators in Indiana
How much does a standby generator cost installed in Indiana?
For a typical home, budget roughly $10,000–$18,000 all-in for a
whole-house air-cooled standby unit (about 18–26 kW): the
generator, the automatic transfer switch, the pad, the fuel hookup, the
electrical work, and permits. An essentials-only unit (10–14 kW)
runs about $6,000–$10,000. Most urban and suburban homes run on natural
gas, while rural properties beyond the gas mains use a propane tank that
adds to the up-front cost. A panel upgrade, a long gas-line run, or a
whole-home versus essentials transfer switch all move the number.
Do I need a permit to install a generator in Indiana?
Yes — and the licensing works differently here than in most states.
Building and electrical codes are adopted at the state level by the Fire
Prevention and Building Safety Commission, but there is no statewide
electrician license: cities and counties license electricians
individually, so the qualifying rules an installer works under in
Indianapolis differ from those in Fort Wayne or Evansville. The permit
and inspection come from your local building department. A reputable
installer holds the license its jurisdiction requires, pulls the
permits, and schedules the inspection — treat an offer to skip the
permit as a red flag.
What size generator do I need in Indiana?
That comes down to a load calculation any good installer runs during
the site visit, and here the sump pump is often the deciding load. Much
of central and northern Indiana has a high water table and dense clay
soil, and a spring outage that stops the sump pump can flood a basement
within hours — keeping it powered is a leading reason homeowners buy
standby power. On top of that, a gas furnace blower and heat pump carry
the cold continental winters, central air handles the humid summers, and
rural homes on a private well lose water without power. 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 the state, so parts and warranty techs are
easy to find from the Region and South Bend down through Indianapolis to
the Ohio River; Kohler and Cummins — the latter built in Columbus,
Indiana — have strong dealers in the 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 derecho or a spring
tornado outbreak those steps stretch, because every house in the county
wants a generator and an installer at the same moment. Ordering ahead of
storm season, rather than the week after an outage, 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. Indiana's cold winters are hard on the starting battery, and
a unit that sat idle through a mild stretch still needs to prove it will
start before the season it's needed. If the generator is protecting a
sump pump, test it before the spring wet season, not during it. Many
installers listed here offer maintenance plans, and several service
brands they don't sell.