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Whole-House Generator Installation in Ontario, California

23 businesses offering whole-house generator installation with a Ontario address in San Bernardino County, CA. Updated 9-22-26.

Business	Phone	Website
Air Control Specialties Inc.Ontario	(909) 947-0535	acs-hvac.com	Report Phone doesn’t work Website doesn’t work
All Pro Cooling, Heating, Plumbing & ElectricalOntario	(909) 375-1244	allproplumbers.com	Report Phone doesn’t work Website doesn’t work
Belanger Electrical ServicesOntario	(909) 241-1115	—	Report Phone doesn’t work
City RentalsOntario	(909) 984-2448	cityrentalnetwork.com	Report Phone doesn’t work Website doesn’t work
CMD ElectricOntario	(888) 206-9756	cmdelectric.com	Report Phone doesn’t work Website doesn’t work
Copperhead electricOntario	(909) 509-2836	—	Report Phone doesn’t work
Dekoker Electrical ContractorsOntario	(951) 681-6366	dekokerelectric.com	Report Phone doesn’t work Website doesn’t work
Downey breakersOntario	(909) 930-0012	downeybreakers.com	Report Phone doesn’t work Website doesn’t work
Electric Generator DepotOntario	(800) 629-4329	electricgeneratordepot.com	Report Phone doesn’t work Website doesn’t work
Generator Factory OutletOntario	(888) 499-0030	generatorfactoryoutlet.com	Report Phone doesn’t work Website doesn’t work
Generator Supercenter of Inland EmpireOntario	(909) 206-1468	generatorsupercenterofinlandempire.com	Report Phone doesn’t work Website doesn’t work
Gregg Electric IncOntario	(909) 983-1794	—	Report Phone doesn’t work
Monkey Wrench Plumbing, Heating, Air & ElectricOntario	(909) 791-2726	monkeywrenchservices.com	Report Phone doesn’t work Website doesn’t work
Mr Pro Service electricianOntario	(626) 485-8444	mrproservice.com	Report Phone doesn’t work Website doesn’t work
Mr. Electric of OntarioOntario	(951) 373-6706	mrelectric.com/ontario?cid=LSTL_MRE000196	Report Phone doesn’t work Website doesn’t work
Murrish MaintenanceOntario	(951) 219-6590	murrishmaintenance.com	Report Phone doesn’t work Website doesn’t work
MW ENERGY LLCOntario	(888) 655-8108	mwenergy.us	Report Phone doesn’t work Website doesn’t work
NexGen HVAC & PlumbingOntario	(909) 487-5060	nexgenairandplumbing.com/locations/ontario	Report Phone doesn’t work Website doesn’t work
Northstar Plumbing, Heating and Air ConditioningOntario	(909) 593-3353	northstarcares.com	Report Phone doesn’t work Website doesn’t work
Ochoa Brothers Auto Repair And TowingOntario	(909) 284-8051	automotiverepairontario.com	Report Phone doesn’t work Website doesn’t work
Otto Instrument ServicesOntario	(800) 777-6886	ottoinstrument.com	Report Phone doesn’t work Website doesn’t work
RDM Electric Co., Inc.Ontario	(909) 591-0990	rdmcompanies.com	Report Phone doesn’t work Website doesn’t work
Warfield Electric Co IncOntario	(909) 947-7606	warfieldelectric.com	Report Phone doesn’t work Website doesn’t work

Listed alphabetically. If a phone number or website does not work, use Report on that listing. Business owners: write to contact@hometradesdirectory.com to correct or remove a listing.

All whole-house generator installation in San Bernardino County, by townAll 105 trades in San Bernardino County