generator service
Power You Can Count On
ThermFlo’s generator service team is the authorized and certified industrial dealer for Generac Industrial Energy products in Chicago and Northwest Indiana.
what we offer
Services Overview
Comprehensive generator services designed to maximize reliability, uptime, and peace of mind.
- Installation, Startup & Programming
- Preventive Maintenance & Full Coverage Agreements
- Equipment Assessments & Repair Quotes
- Progressive Resistive Load Bank Testing
- Remote Monitoring
- Diesel Fuel Polishing
- Lubrication, Cooling & Fuel System Service
- Complimentary Battery Replacement
- Equipment Exercise & Upgrades
- Priority Service and Preferred Rates for Contracted Customers
Generator service for all major brands
We offer a full suite of generator services not only on Generac products but also all brands—from installation and startup to remote monitoring and preventive maintenance. Our service agreements are designed to align with your operational priorities, offering full coverage or maintenance-only options with preferred rates and priority response.
Our technicians
Expert technicians. Proven reliability.
ThermFlo’s generator service team is the authorized and certified industrial dealer for Generac Industrial Energy products in Chicago and Northwest Indiana.
Our EGSA-certified technicians are re-certified every two years and our service vehicles are fully stocked to meet Generac’s rigorous standards. We handle all warranty issues in our region and maintain direct access to manufacturer support, ensuring fast and accurate service resolution.
ThermFlo is proud to be a Generac Service Award winner, recognized as a Top 5 provider in North America for service response time. This distinction reflects our commitment to excellence and our proactive system for monitoring and resolving service requests before they escalate.
Service support when you need it
DURING NORMAL BUSINESS HOURS
7:00 am – 5:00 pm, Monday through Friday Service requests can be placed using phone, fax or email.
847.353.5400
servicecoordinators@thermflo.com
OUTSIDE NORMAL BUSINESS HOURS
Including Holidays – Service requests can be placed by phone, and will be routed to our call desk through our 24-hour answering service.