Sun Construction & Facility Services, Inc. Share: General ContractorsArchitecture/EngineeringConstruction ManagementDemolition ServicesInfrastructureReal Estate ServicesSBE-DenverSBE-RTDUtilities Visit Website Request Info 1232 Boston Ave Longmont, co 80501 (303) 444-4780 LinkedIn About Map About Sun Construction is a Commercial & Industrial General Contractor specializing in technically challenging and unique projects. What's Nearby? Distance: 5 10 15 20 25 50 mi.