Gruner Electric Company
Installs standby generators, transfer switches and panel upgrades for backup power in Rockford and nearby northern Illinois towns, with 24-hour emergency service.
What they do
Gruner Electric installs standby generators and generator systems, adds transfer switches and carries out panel upgrades to support them. It is an authorized Champion dealer, so the firm can help choose the generator and transfer switch, handle delivery and installation, and provide ongoing maintenance and troubleshooting. Installations can include underground wiring, trenched runs into a slope and custom concrete bases. The company serves Rockford, Belvidere, Machesney Park and Roscoe. It offers 24-hour emergency service and free estimates, and financing is available for new generators. The company has 23 years in business. It is open Monday to Friday and on Saturday mornings, and it is closed on Sundays.
- Standby generators
- Generator installs
- Transfer switches
Listed under Backup power
Where they work
What we checked
Checked 12 Nov 2026, from public sources.
Not yet verified. We haven’t contacted this business yet. Ask for a written quote before work starts.
Other backup power pros in Rockford
Still choosing the equipment?
Compare prices and specs before you call a pro.