Turn to Carlson Bros Mechanical Contracting for all your mechanical contracting needs. Carlson Bros Mechanical Contracting offers professional & reliable plumbing, heating & remodeling services to the people of Duluth, MN. We specialize in gas piping, air testing, jetter services, video inspection of sewers, water heater repairs and drain cleaning services. We are delivering plumbing services for both residential and commercial customers in and around Duluth for over 34 years. Call us for same day services.