Gagnon, Inc. Share: Contractor Gagnon, Inc. Visit Website Request Info 2315 Hampden Avenue St. Paul, MN 55114-1204 (651) 644-4301 (651) 644-1498 (fax) About Map About Contractors since 1949. Industrial high temperature refractory, insulation, lagging and structural fire proofing services. What's Nearby? Distance: 5 10 15 20 25 50 mi.
