TSI Logo



140 Powell Ave.
Darby, PA 19023
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Domain Dezign


& Repairs
One of TSI's most valuable services might be our 24 hour a day testing & repairs. If your company is unable to work or communicate with customers because your phone system, network or cabling is malfunctioning, the bottom line is ...You are losing money!
TSI's staff of technicians are factory certified and use the latest fiber and copper testing technology. After conducting all possible tests, TSI will determine the problem and repair it, assuring you that your network is up and running.

TSI will repair all of your telecommunication problems. Our trucks are stocked with all the necessary tools and equipment at all times ensuring we are always ready to serve you.

For all of your repair need please call our 24 hour service hotline at 1.800.887.8353

Omni Cable Tester