Serenus Johnson Construction Share: Design BuildConstruction Serenus Johnson Construction Visit Website 5178 Kasemeyer Rd. Bay City, MI 48706 (989) 686-1900 (989) 686-9970 (fax) Hours: 7:30am-4:30pm About Map About Serenus Johnson Construction is a commercial/industrial general contractor that has been in business in Bay City since 1919 with emphasis in design/build and competitive bid contracting services. What's Nearby? Distance: 5 10 15 20 25 50 mi.