Contact us for your Electrical needs ECS is conveniently located just off I-20 at Exit 68, Monticello Road. Our helpful Counter Staff and Inside Sales Reps are available from 7:30am to 5:00pm Mon-Thu, 7:30am - 4:00pm on Fridays. You can also reach us by E-Mail and one of our Sales Reps will get back to you within 24hrs or by the next business day. Phone   800 318-1408 Local    803 691-9600 Fax       803 691-1120 Address 300 Buckner Road                Columbia, SC 29203                                                                                           Phone 803 691-9600 Fax 803 691-1120                                                                                       300 Buckner Road                                                                                      Columbia, SC 29203