S. L. Sibert Company, Inc., a C - Corporation, owned by Sam and Rita Sibert was founded in 1990, to provide profitable underground utility construction services to electrical, water and gas service providers for residential and business customers in the North Texas area. The Underground utility construction industry involves installation, replacement and repair of electrical, water, sewer, gas and phone lines. Our market in the north Texas area is vibrant and is being driven by the construction boom in residential housing.