5 of St. Louis County's 163 plumbers and heating and cooling contractors are listed for AC and heat pump installation.
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A contractor is listed for a service when its owner picked the service, when its Google Business Profile category names it, or when its business name does. Ranked as on the county page: verified owner, then a Google rating of 4.0 or higher, then review count, then fleet size. How ranking works
Ranges are national; ask contractors near you.
Figures checked September 2026.
Minnesota licenses plumbing contractors and master and journeyworker plumbers.1, 2, 3 Mechanical contractors in Minnesota file a $25,000 bond with the state instead of holding a state license.4 Replacing any gas, mechanical or plumbing system in Minnesota needs a permit under the state building code.5
