TCI Companies (formerly Tri-County Irrigation & Plumbing) has been Central Illinois' premier plumbing and irrigation contract ... or since 1987. From the beginning, TCI Companies, Inc. has been dedicated to providing the highest quality installation and service, by having quality products and the best staff in the industry. TCI Companies, Inc. has grown from their original irrigation roots into a multi-faceted company specializing in all your water needs. We have recently consolidated all of our divisions, Tri-County Irrigation, TCI Plumbing, TCI Geothermal and TCI Water Well & Pump Service, under one name to better serve all your water needs. read more