 There isn't a roof Christopherson Construction can't repair. Shingles, rubberized membrane roofs, flat roofs, standing seam metal roofs. One call does it all. 406-422-5085. Christopherson Construction is licensed, insured, and they work with all insurance companies. All work guaranteed since 1985. Roofs, siding, and more. One call does it all. Christopherson Construction. 406-422-5085. Free, no obligation estimates. See their work at MontanaRoofing.com.