We specialized in visiting you inside and outside business hours so the work can be with minimal impact to your business. We provide expert, same day onsite services to thousands of homes and business throughout German cities. CassTel IT is trusted by thousands of satisfied customers who need same day on-site support services and with many years of experience.


– System Integration
– Network Maintenance
– Repairs and Servicing
– Hardware supply and Installation
– Health Scanning and Optimisation
– Software supply, installation maintenance and Logistics
– WiFi Network configuration and signal range extending
– Home Security Video over IP/WiFi Installation and configuration

Maximize your return of investment and minimize staff disruption, contact us today for an assessment.