Industrial & Commercial Generator Service & Maintenance



24/7 EMERGENCY SERVICE: 905-670-9196


Trusted Industrial & Commercial generator maintenance and Service in Ontario

Unexpected power outages can cause devastating losses in productivity, revenue and even damage to equipment. This is why having a well-serviced generator is so important.

Regular generator maintenance not only ensures that your backup power source is ready to go when you need it, but it can also increase the lifespan of your generator and lower the risk of unexpected breakdowns.

At Ronnie’s Generator Service Ltd ., we offer comprehensive generator servicing solutions for industrial and commercial clients across Ontario. Our experienced technicians use the latest technology to diagnose and repair any issues, ensuring that your generator is in top shape and ready to handle any power disruptions. Trust us to keep your generator running smoothly so you can focus on what you do best!

We offer a full range of maintenance program options designed to fulfill CSA requirements as well as legendary 24 hour emergency services.



At Ronnies, we repair and service all generator makes and models including generators that are
fueled by natural gas, liquid propane gas, or diesel. Our sister company, Paramount Power
Systems is an MTU dealer for the industrial and commercial generator market and we handle
all service, preventative maintenance and any warranty claims on their behalf. Whether you
have a maintenance contract with us or your system is out of warranty, we can provide service,
maintenance and repairs as needed.

We also provide maintenance contracts for other brands such as:

  • ​ Cummins® Onan
  • ​ Generac®
  • MTU/Detroit Diesel
  • Katolight®
  • SDMO®
  • Caterpillar

We service virtually any power generators ranging from 20kW to 3200kW.



We meet the stringent maintenance code requirements imposed by the Canadian Standards Association (CSA-C282) for emergency generators used for life safety purposes. The same high standard of customer care is provided to all our residential customers.



Most warranties from Paramount Power Systems are valid for five years.  It is important to maintain your generator regularly during the warranty period and afterwards to keep your system running at peak performance. The maintenance frequency will take into account the type of system and the inherent risks of going without a power source.  If you have an existing Kohler residential generator under warranty, you also have the option to purchase an extended warranty for peace of mind.



Is your backup power generator ready to step in if your primary source should fail during a brownout or blackout? If your answer is “maybe,” you should definitely consider regular power generator maintenance. To schedule service, call Ronnie’s Generator Service Ltd. today!



Over the 40 years of serving clients across Ontario, we have created an unrivalled reputation of quality and efficiency. With our emergency services, professional attitude, honest pricing and customer-centric approach, we have emerged as the preferred repair and maintenance service provider in Ontario. Our wide clientele across the province gives a resounding testimony to the quality of our services.

At Ronnie’s Generator Service Ltd., our team of experts is competent at providing you with end to end testing, installation, repair and servicing solutions for your generators. Our expert team can provide competitive, fair and transparent cost estimates after a thorough inspection of the repair job. We take complete care and caution to ensure that the fault is detected and identified accurately so that they can provide you with an appropriate solution to the problem.



We service areas across Ontario. Regardless of the fault in your generator, our expert workmen can provide you with complete solutions at an honest price. Call us to know more about our emergency generator repair services in Ontario.