Standby generator installers in Michigan

Michigan loses power more often than almost any other state — ice storms, summer squalls, and an aging grid mean the average Michigan household sees several outages a year, some lasting days. A standby generator starts itself within seconds of an outage and carries the furnace, sump pump, well pump, and refrigerator until the utility is back. These are the Michigan companies that install and service them.

Questions about cost, permits, or sizing? Common questions about standby generators in Michigan

How this list is built: We found these companies by reading Michigan generator-installer websites, then classified each one: is standby-generator work its core business, is it a factory-authorized dealer, or is it an electrical or HVAC contractor that also installs generators? Specialists and authorized dealers are listed first. Full methodology.

Browse by brand

Generac installers (115) Kohler installers (31) Briggs & Stratton installers (26) Cummins installers (10)

or

177 companies

Generator specialists (12)

Standby generators are the core business — sales, installation, and service.

Installs Cummins, Briggs & Stratton, Kohler, Generac · Based in Clarkston, MI

Installs Generac · Based in Greenville, MI

Installs Generac, Kohler, Briggs & Stratton

Installs Generac · Based in Bay City, MI

Installs Cummins, Onan · Based in Reese, MI

Gentek Power LLC Generator specialist

gentekpower.com

Installs Generac

MI Generator Generator specialist

migenerator.com

Installs Generac

Installs Generac, Kohler, Briggs & Stratton, Cummins, BlueStar · Based in Byron Center, MI

Installs Generac, Cummins, Kohler, Briggs & Stratton · Based in Milford, MI

Installs Generac, Kohler, Briggs & Stratton · Based in Brighton, MI

Installs Briggs & Stratton, Generac · Based in Jenison, MI

Installs Generac · Based in Zeeland, MI

Factory-authorized dealers (53)

A factory-authorized dealer for one or more generator brands, typically handling warranty service.

Installs Generac

Installs Kohler · Based in Novi, MI

Installs Generac · Based in Norton Shores, MI

Installs Generac · Based in Kalamazoo, MI

Installs Kohler · Based in Muskegon, MI

Installs Generac · Based in Ann Arbor, MI

Installs Generac · Based in Clinton, MI

Installs Generac, Cummins · Based in Fenton, MI

Installs Generac · Based in Marquette, MI

Installs Kohler, Generac · Based in Grand Rapids, MI

Installs Kohler, Generac, Briggs & Stratton · Based in Willis, MI

Installs Generac · Based in St. Clair, MI

Installs Generac · Based in Pigeon, MI

Installs Generac, Briggs & Stratton · Based in Traverse City, MI

Installs Generac · Based in Monroe, MI

Installs Generac · Based in Holland, MI

Installs Generac · Based in Kalamazoo, MI

Installs Generac · Based in New Hudson, MI

Installs Generac, Briggs & Stratton · Based in Grand Rapids, MI

Installs Generac · Based in Brooklyn, MI

Installs Generac · Based in Traverse City, MI

Installs Generac · Based in Clarkston, MI

Installs Generac · Based in Hartland, MI

Installs Generac · Based in Warren, MI

Installs Kohler · Based in Monroe, MI

Installs Generac · Based in Grand Blanc, MI

Installs Generac, Kohler · Based in Mikado, MI

Installs Generac, GE, Briggs & Stratton · Based in Troy, MI

Installs Generac · Based in Livonia, MI

Installs Generac · Based in Livonia, MI

Installs Generac, Eaton, Kohler · Based in Kalamazoo, MI

Installs Generac · Based in Ottawa Lake, MI

Installs Briggs & Stratton, Generac · Based in Shelby, MI

Installs Generac, Briggs & Stratton

Installs Generac, Cummins, Kohler · Based in Southfield, MI

Installs Generac · Based in Romeo, MI

Installs Generac · Based in Grayling, MI

Installs Generac · Based in Midland, MI

Installs Generac · Based in Lapeer, MI

PM Technologies Authorized dealer

pmtech.org

Installs Generac, Kohler · Based in Wixom, MI

Installs Generac, Kohler, Briggs & Stratton

Installs Generac · Based in Alma, MI

Installs Generac, Briggs & Stratton · Based in Galesburg, MI

Installs Generac · Based in Kalamazoo, MI

Installs Generac, Kohler, Briggs & Stratton · Based in Richmond, MI

Installs Generac

Installs Generac · Based in Midland, MI

Installs Generac · Based in Port Huron, MI

Installs Generac · Based in Livonia, MI

Installs Generac · Based in Midland, MI

Installs Generac · Based in Kalamazoo, MI

Installs Generac · Based in Lansing, MI

Installs Generac · Based in Attica, MI

Electrical contractors that install generators (64)

An electrical contractor that installs standby generators alongside general electrical work.

Installs Generac · Based in Traverse City, MI

A2 Electric, PLLC Electrical contractor

a2electric.com

Based in Ann Arbor, MI

Based in Muskegon, MI

Installs Generac · Based in Beaverton, MI

Based in Bay City, MI

Installs Generac · Based in Bay City, MI

Based in Sterling Heights, MI

Based in St. Charles, MI

Installs Generac · Based in Clawson, MI

Buzz Electric Electrical contractor

buzzelectricmi.com

Based in Redford, MI

Based in Farmington, MI

Installs Generac · Based in Hastings, MI

Installs Generac · Based in Bay City, MI

Installs Generac, Kohler, Briggs & Stratton · Based in Detroit, MI

Based in Ann Arbor, MI

Based in Flint, MI

Don's Electric Electrical contractor

donselectric.us

Installs Generac · Based in Davisburg, MI

Based in Saginaw, MI

Based in Harrison, MI

Based in Dearborn, MI

Installs Generac, Briggs & Stratton · Based in Clinton, MI

Based in Lansing, MI

Installs Generac · Based in Lowell, MI

Installs Kohler · Based in Gaylord, MI

Installs Generac, Kohler · Based in Grand Rapids, MI

Installs Kohler, Caterpillar, Cummins, Onan, Generac, Detroit Diesel · Based in Livonia, MI

Great Dane Electrical contractor

greatdanehvac.com

Based in Clinton, MI

Based in Flint, MI

Based in Kalamazoo, MI

Based in Troy, MI

Installs Generac, Kohler · Based in Fowlerville, MI

Installs Generac

Based in Detroit, MI

Based in Kalamazoo, MI

Installs Generac · Based in Midland, MI

Installs Generac, Winco · Based in Hancock, MI

Installs Generac · Based in Marysville, MI

Kukla Electric Electrical contractor

kuklaelectric.com

Installs Generac · Based in Marquette, MI

Based in Troy, MI

Laws Electric Electrical contractor

lawselectric.com

Based in Kalamazoo, MI

Installs Generac, Kohler, Briggs & Stratton · Based in Madison Heights, MI

Installs Generac, Briggs & Stratton · Based in Morley, MI

MI Electrician Electrical contractor

mi-electrician.com

Based in Muskegon, MI

Installs Generac, Kohler, Cummins · Based in Commerce, MI

MJM Electric Inc Electrical contractor

mjmelectric.com

Installs Generac · Based in Ray, MI

Based in Livonia, MI

Installs Generac, Briggs & Stratton, BlueStar · Based in Lansing, MI

Based in Taylor, MI

Installs Generac · Based in Livonia, MI

Oak Electric Electrical contractor

oakelectric.com

Installs Generac, Briggs & Stratton, GE, Honeywell · Based in Waterford, MI

Installs Generac, Kohler, Briggs & Stratton, Cummins · Based in Wixom, MI

Based in St. Clair Shores, MI

Installs Generac · Based in Clarkston, MI

Installs Generac, Kohler, Cummins, Briggs & Stratton

Based in Grand Ledge, MI

Installs Generac · Based in Port Huron, MI

Based in Traverse City, MI

Installs Generac, Honeywell · Based in Brighton, MI

Whitney Services Electrical contractor

callwhitney.com

Installs Generac

Installs Generac · Based in Kalamazoo, MI

Installs Generac · Based in Livonia, MI

HVAC & plumbing contractors that install generators (48)

An HVAC or plumbing company that installs standby generators alongside its main trade.

Based in Harrison, MI

A to Z Heating & Cooling HVAC / plumbing contractor

atozheating.com

Installs Generac · Based in Dearborn Heights, MI

Installs Kohler, Generac, Briggs & Stratton · Based in Cadillac, MI

Installs Generac · Based in St. Clair Shores, MI

Installs Generac · Based in Okemos, MI

Barbour Heating & Air HVAC / plumbing contractor

barbourheating.com

Based in Albion, MI

Charter Home Comfort HVAC / plumbing contractor

callcharter.com

Based in Clinton, MI

CMR Mechanical HVAC / plumbing contractor

cmrmechanical.com

Installs Generac · Based in Dexter, MI

Based in Livonia, MI

Based in Troy, MI

CTI Mechanical HVAC / plumbing contractor

ctimechanical.com

Based in Battle Creek, MI

Based in Farmington, MI

Based in Marshall, MI

Based in Garden City, MI

Based in Warren, MI

Based in Lansing, MI

Installs Kohler, Generac · Based in Lansing, MI

Installs Generac · Based in Farmington Hills, MI

Installs Generac, Kohler, Briggs & Stratton, Honeywell · Based in Davison, MI

Indoor Comfort HVAC / plumbing contractor

indoorcomfort.net

Installs Honeywell · Based in Ann Arbor, MI

Installs Generac · Based in Ann Arbor, MI

Lascko Services HVAC / plumbing contractor

lasckoservices.com

Installs Generac · Based in Muskegon, MI

Installs Generac, Kohler · Based in Harbor Springs, MI

Installs Generac · Based in Redford, MI

Based in Warren, MI

Based in Dearborn Heights, MI

Installs Generac · Based in Allen Park, MI

Based in Petoskey, MI

Moore Mechanical HVAC / plumbing contractor

mooremech.net

Installs Generac

Based in Troy, MI

R.W. LaPine, Inc. HVAC / plumbing contractor

rwlapine.com

Installs Generac · Based in Kalamazoo, MI

Based in Grand Rapids, MI

Installs Generac, Kohler · Based in Macomb, MI

Based in Dearborn, MI

Installs Briggs & Stratton · Based in Wixom, MI

Based in Rochester Hills, MI

Rolls Mechanical (LJ Rolls) HVAC / plumbing contractor

ljrolls.com

Based in Fenton, MI

Installs Generac · Based in Troy, MI

Ryczek Heating & Cooling HVAC / plumbing contractor

ryczek.com

Installs Generac, Kohler · Based in Saginaw, MI

Service Professor HVAC / plumbing contractor

serviceprofessor.com

Based in Grand Rapids, MI

SGI Heating & Cooling HVAC / plumbing contractor

sgiheating.com

Installs Generac · Based in Flint, MI

Sims Electric HVAC / plumbing contractor

simselectricinc.com

Installs Generac · Based in Battle Creek, MI

Based in Bay City, MI

Based in Flat Rock, MI

Based in Pinckney, MI

Vander Hyde Services HVAC / plumbing contractor

vanderhyde.com

Installs Generac · Based in Grand Rapids, MI

Based in Grandville, MI

Browse installers by county in Michigan · Browse installers by town in Michigan

Common questions about standby generators in Michigan

How much does a standby generator cost installed in Michigan?
For a typical Michigan home, expect roughly $9,000–$15,000 all-in for a whole-house air-cooled standby generator (about 18–26 kW): the unit itself, the automatic transfer switch, a concrete or composite pad, gas piping, electrical work, and permits. Partial-home units (10–14 kW) covering essentials can land in the $6,000–$9,000 range. Liquid-cooled units for large homes run well past $20,000. Fuel type matters: natural gas is cheapest to run where available; propane requires a tank.
Do I need a permit to install a generator in Michigan?
Yes. A standby generator installation involves an electrical permit (and usually a mechanical/gas permit) pulled with your city, township, or county building department, followed by inspection. Michigan requires the electrical work to be done by a licensed electrical contractor. A reputable installer pulls the permits as part of the job — treat an installer who suggests skipping them as a red flag.
What size generator do I need?
The honest answer is a load calculation, which any good installer performs during the site visit. As a rough guide: essentials only (furnace, sump, well pump, fridge, some lights) fits in 10–14 kW; a typical whole house runs 18–26 kW; homes with large AC, a pool, or electric heat need more. Oversizing wastes money up front; undersizing means the generator sheds loads you wanted covered.
Generac, Kohler, Cummins, or Briggs & Stratton — does the brand matter?
All four build reliable home standby units; what matters more is the installer and the service relationship afterward. Generac has by far the largest Michigan dealer network, which means parts and warranty techs are easy to find; Kohler and Cummins have strong dealers in most metro areas. A factory-authorized dealer can handle warranty work on its brand — worth weighing when brands otherwise look similar. Use the brand pages here to see who installs and services each brand 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 and unit, run gas and electrical, mount the transfer switch, and commission. The calendar time is longer — site visit, quote, permits, and (in busy seasons, especially after a big outage) unit availability can stretch the process to several weeks.
What maintenance does a standby generator need?
Annual service — oil and filter, spark plugs on schedule, battery check, and a load test — plus the weekly self-test the unit runs on its own. Many Michigan 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 goes down.