General Info

Windsor Underground LLC is a family-owned underground utility contractor based in Phoenix, Arizona. Established in 1986, the company specializes in turnkey dry utility services for multi-family, commercial, custom, and tract home projects. With over 39 years of experience, Windsor Underground has been instrumental in providing early construction power and utility trenching for numerous developments across the Phoenix Metro area. Their commitment to quality and reliability has made them a trusted partner for electrical contractors, general contractors, utility companies, and municipalities.