Exton Electricians – Best Electricians in Exton, PA 19341 Thank you for choosing CTS Electric in Exton, PA 19341. We offer the best electrical services in Exton, PA 19341. Generators A home or business backup generator delivers power directly to your electrical system, backing up your entire location or just the most essential items. Commercial Services When the time comes to find a qualified commercial electrician, you should consider experience and the service reputation that CTS Electric enjoys. Residential Services Everything from data network and telephone installations to spa and appliance wiring. We also upgrade and repair wiring for new houses, remodels and additions.