You can reach us directly at these numbers:

In St. Louis – (636) 425-1400
In Springfield – (417) 831-7077





Technical Support

TSI Service Technicians and Systems Engineers are available to help you with any system that TSI has installed or is certified on. 

We live-answer our service line Monday through Friday, 7a - 5p.

After hours you will be prompted to leave a message and an on-call technician will call you back within 30-minutes.

You may also reach us via e-mail at