Texas Allied Industries, which includes Texas Allied Landscape and SISCO Irrigation, has been servicing the Greater San Antonio area for over 30 years. We are committed and dedicated to our customers. Our parent company, Willcox and Associates, started as an irrigation company in 1976. We provide commercial and residential services that include landscape design and installation, irrigation system design and installation, lighting design and installation, lawn maintenance service, stonework, and drainage design and installation.