Rennert's Fire Equipment Service, Inc.

06/13/2026

The boys are getting things shined up for the Markesan June Dairy Days parade. 7pm start time.

06/09/2026

Rennert's Fire Equipment Service, Inc. is looking to grow our team. We are now accepting applications for the following position:
Heavy duty truck technician to work in the exciting industry of Emergency Vehicle/Equipment repair. The right candidate would have experience in heavy duty truck repair/maintenance and electrical diagnostics. Willing to train the right candidate. We offer a competitive wage and benefit package to the qualified applicant.
*This is a very rewarding position, much more than a mechanic position. Get to work with some of the finest individuals maintaining, repairing, refurbishing, and training on any and all Fire and EMS Apparatus.
You can apply in person or send an application using this link:

06/08/2026

06/08/2026

EVT Austin Davis and Steve Williams on-site Verona (WI) Fire Department for NFPA Maintenance, Pump Testing, and Inspection.

06/05/2026

EVT Austin Davis On-site Town of Fond Du Lac Fire Department for NFPA Annual Pump Testing.

06/04/2026

🚨 TRUST THE EXPERTS WHO KNOW LIFE SAFETY FIRSTHAND 🚒
When every second counts, you can't afford to have your apparatus out of service. At Rennert’s Fire Equipment Service, Inc., we provide Wisconsin’s premier repair and maintenance for fire and EMS departments.

Why Choose Rennert's?

* Decades of Experience: Over 55 years of keeping emergency vehicles in top condition.
* EVT Certified Technicians: Our team is factory-trained by major pump manufacturers like Hale, Waterous, and Darley. Many more.
* Mobile Service Fleet: We come to you with multiple service trucks, including Two mobile pump test trailers.
* Firefighter Owned: Operated by active firefighters who understand the critical importance of dependable equipment.

Our Core Services

* Full-Service Repairs: Complete electrical, pump, and mechanical diagnostics and repair.
* Comprehensive Refurbishment: Give your existing apparatus a second life with everything from engine overhauls to lighting upgrades.
* On-Site Testing: Customizable pump testing and preventative maintenance programs to fit your department’s needs.
* Vehicle Upfit: Specialists in custom skid units, UTV units, and truck installations.
*Anything and everything firetruck and ambulance related.

GET BACK IN SERVICE FASTER

Don’t wait for a breakdown. Contact our team today to schedule your next maintenance check, repair, or pump test.
📞 Call us: [920-398-1033
📍 Visit: 615 E John St, Markesan, WI 53946
📧 Email: [email protected]
🌐 Website: www.rennerts.com

*Honesty, Integrity, Reliability.

06/04/2026

On-site Fall River, Wi Fire Department for NFPA Annual Pump Testing.

06/03/2026

Happy Birthday!

Excited to wish EVT Ben Douma a very Happy Birthday. Ben is a great asset to the team here at Rennert's Fire Equipment Service Inc. Ben brings several years of heavy truck and emergency vehicle repair experience. In his spare time he is a Volunteer Firefighter. Thank you Ben!

06/01/2026

Beautiful start to Monday!

05/29/2026

Congratulations SGT Manning. Well deserved Retirement!