HVAC & Plumbing Services in Duluth, MN

A big share of Duluth’s housing went up before World War II. According to the U.S. Census Bureau’s American Community Survey 2024 5-year estimates, about 43 percent of Duluth’s homes were built before 1940, and the median year built is 1951. Many homes that age were built around hot-water radiator heat. Boilers are great systems when they are maintained. We repair and replace them, and we are just as happy keeping a good one alive as swapping it.

Yes, with the right equipment. Cold-climate models paired with gas backup handle Duluth’s below-zero stretches. Details on our heat pump services page.

Most often it is a duct system that was converted from gravity heat and never rebalanced. Those old octopus systems relied on warm air rising on its own, so the runs are short and fat downstairs and starved upstairs. Balancing dampers, a return in the right place, or a small zoning change usually fixes more than a bigger furnace would.

Yes, and you do not need ductwork to do it. A ductless system puts a head in the rooms that get hot, usually the upstairs bedrooms, and leaves the boiler as it is. It also gives you efficient heat in spring and fall.

Almost always a repair. Banging in a hot-water system usually means trapped air or a circulator problem; in a steam system it usually means condensate that cannot drain back because of pitch or a bad trap. Neither is a reason to replace a boiler that is otherwise sound.

Call (715) 817-4404 and we will tell you when a tech can be there. Our shop is across the bridge at 1808 Tower Ave in Superior, and emergency calls are answered 24/7.

Yes. We are licensed, bonded, and insured in both Wisconsin and Minnesota, and our plumbers and HVAC technicians carry the certifications each state requires.

Long. NOAA’s 1991-2020 normals for Duluth International Airport average about 9,115 heating degree days a year (a measure of how much heating a place needs), a January low around 2°F, and about 38 nights a year below zero. A heating system here works hard, so a yearly checkup is worth it.

It can. NOAA’s 1991-2020 normals for Duluth International Airport average about 90 inches of snow a year, and a high-efficiency furnace vented through a side wall will lock out if a drift covers the pipes. Keep the intake and exhaust clear after a storm, and call us if the furnace keeps locking out.