Member Directory FiltersClear (2) Member Type contractor (1) contractor (1) Contractor Specialties excavating trenching (1) excavating trenching (1) fire sprinklers (1) fire sprinklers (1) general engineering (1) general engineering (1) pipe bursting pipe welding sanitary sewer systems (1) (-) pipe bursting pipe welding sanitary sewer systems (1) pipelines (1) pipelines (1) pumps repair installation (1) pumps repair installation (1) utility adjustments (1) (-) utility adjustments (1) water sewer drain products (1) water sewer drain products (1) Territory Contra Costa County (1) Contra Costa County (1) Location Primary Location (1) Primary Location (1) Interested in becoming a member of United Contractors? Join us here. All C F G H J M O P S T V W Showing Results (1 - 1) of 1 Horizon Construction Co. (DS Castro) Member since December 1993 https://www.horizonconstructionco.com(link is external) (925) 521-9300 Platinum Annual Sponsors (link is external) (link is external) (link is external) (link is external) All 2025 Annual Sponsors
