Address: 44 17th St, Bangor, ME 04401 Phone: 207-605-0531 Bangor Maine based J&R Contracting Group Bangor Maine based J&R Contracting Group provides general construction throughout the state of Maine. As a building construction contractor, we offer a wide range of construction services that includes, new home builds, custom additions, garages, and major renovation services. We confidently say we know construction and our experienced staff will provide economically viable solutions that will help turn your dreams into a reality.