Colonial Commercial Generators.

Colonial Generators is master distributor of Cummins Onan, Generac and Kohler.  We sell, service and install generators up to 150kW.



When it comes to industry there is only company that focuses on Generators – it’s us.  Quietly we’ve become the number one independent dealer of commercial generators.  Our relationship with Cummins Onan allows us to provide the lowest price on any large commercial or industrial generator project plus we have a full staff of engineers, plumbers and electricians to handle any size project.

We can handle generators for data centers, hospitals, restaurants, banks, gas stations, hotels, office buildings, industrial and manufacturing properties, healthcare facilities, offices, schools and more.  We can deliver nationally and can service and install any size project.

If you have a commercial or industrial generator need for a new or replacement generator please contact us.

Get a free estimate today!

"*" indicates required fields



Choosing a generator for business for most businesses is fairly easy although we can supply customized options for businesses with unique power needs. We can supply standby generators for Gas Stations, Grocery Stores, Banks and Retail business, Hospitals, Data Centers, Industrial and Manufacturing facilities, Hotels, Apartment Buildings, and much more.

Each require special generators to ensure power under any circumstance especially outages.  We can supply generators from 25 kW to 150 kW.