About TierOne Telecommunications

In business since 1991, TierOne Telecommunications provides Chicagoland with wiring expertise and is a viable alternative to the local phone company and/or your telephone equipment vendor. We handle business inside wiring; of telephones, telephone systems, computers: data communications and customer premise equipment. Whether it is the installation of a brand new telephone phone system; relocation of your existing telephone system; rewiring or establishing of your data computer network; retraining you and your employees how to use your old phone system; or consulting and advising if you should buy a new telephone system; TierOne is here to assist you with all your business inside wiring and telephone system needs.