Commercial Generator Installation in Louisville and Southern Indiana

Keep Business Running with Safe, Reliable Backup Power

When the power goes out, Corrigan Generators keeps your business powered. Whether you're protecting data centers, healthcare equipment, refrigeration systems, or simply need to maintain operations without interruption, we install commercial-grade generators that match your load, safety needs, and future growth.

Complete Generator Services for Your Facility

Corrigan Generators provides end-to-end generator services for commercial properties across Louisville, Jefferson County, Southern Indiana, and surrounding areas. Our team works with business owners, facility managers, and contractors to design, install, and maintain backup systems tailored to your operations.

We handle:

Generator selection and sizing
Professional installation and permitting
Transfer switch installation
System testing and load balancing
Ongoing service and annual inspections

Front yard of a house with green bushes, small trees, a white brick house, and a gray outdoor air conditioning unit.

Need long-term coverage? We offer generator maintenance programs to ensure your system is ready whenever you need it.

Same Family. Now Corrigan Generators.

Our generator work has a home of its own. Corrigan Generators is the generator division of Corrigan Electric, installing and servicing standby generators for businesses since 2004 with the same licensed electricians and the same phone number. Visit the site to see the businesses we serve, how we size a system around your operation, and what comes with every installation.

Visit Corrigan Generators

Industries We Serve

From small businesses to complex facilities, Corrigan Generators designs backup solutions for commercial needs across sectors, including:

Office buildings

Manufacturing and industrial

Medical and dental offices

Retail and restaurants

Churches and nonprofits

And More…

We understand the unique power needs of your industry and keep you compliant with local codes and safety standards.

What It's Like to Work With Corrigan

"Corrigan did a nice job from start to finish. … Office staff was also helpful every step of the way as well."

Bob Dearmond

"Corrigan is the best. We've had nothing but fantastic service from them since they put our Generator in years ago."

Michael Horlander

"Wonderful company and employees. Corrigan handles all our business and personal electrical needs."

Screens of Kentucky

FAQ’s

Corrigan Generators installs backup power for medical and dental offices, restaurants and food service, retail and small commercial buildings, office buildings and professional practices, churches and nonprofits, and senior living and care facilities across Kentucky and Southern Indiana.
A Corrigan Generators project manager evaluates your building, your electrical service, and the equipment that must stay running, such as refrigeration, medical equipment, data systems, or HVAC. We size the system to your actual load and future needs, and recommend air-cooled or liquid-cooled systems based on what your operation requires.
Yes. Corrigan Generators handles permitting and inspection requests, transfer switch installation, and testing under load for every commercial installation. A licensed electrician completes the electrical work, so your system is code compliant and ready before you need it.
Yes. Corrigan Generators offers service plans for commercial generators, including systems we didn't install. Plans are priced by system type and size, air-cooled or liquid-cooled and kilowatt rating, and include inspections, testing, and maintenance by certified generator technicians. Remote monitoring is included with every new installation and can be added to most units we didn't install.
Corrigan Generators is a certified dealer and service provider for Briggs & Stratton, Generac, and Kohler, with both air-cooled and liquid-cooled options. Generac offers the widest range of commercial sizes. We'll recommend the brand and system that fit your building and your budget.