Who is guardian construction? Incorporated in 2006, Guardian Construction (Guardian) is an 8 (a) Small Disadvantaged Business that offers clients a highly qualified federal contracting team with experience working at secure, fully operational locations, as well as remote areas. Unlike other 8 (a) contractors, Guardian has been performing federal projects for 10+ years.What is the phone number for guardian customer service? 1-888-Guardian. (1-888-482-7342) Safely send private information to Guardian: Secure Channel. Submit a claim. Help with a specific product or offering. Additional support (i.e. technical issues with account access and management, customer complaints, fraud, etc.) 2019-85216.Why choose guardguardian as your construction partner? Guardian, a Construction Management partner, serves as your primary contact for your project from the start. This type of relationship works to the benefit of the building owner.Who is guardian environmental services company? Guardian Environmental Services Company, Inc. (GES) is a full service contractor with extensive experience with federal, state, and local government agencies, as well as commercial and industrial clients. GES was established in 1987, and is a Service Disabled Veteran Owned Small Business (SDVOSB).