Cosgriff Climate Control
Hermantown-based, the HVAC contractor is open around the clock every day and handles furnaces, boilers and ductless mini-splits, with Lennox and Mitsubishi equipment.
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Heating contractors and plumbers for breakdowns.
Heating and cooling failures in Duluth come with a local paperwork trail that is worth knowing before anyone arrives. The city requires an HVAC permit for work such as furnace or boiler replacement, mini splits and air conditioners, so an emergency swap is not exempt just because it is urgent. Minnesota has no state licence for mechanical contractors; instead they must file a mechanical contractor bond with the state labour department before taking on gas, heating, cooling or refrigeration work. In Duluth the permit is taken out on ePlace by a bonded mechanical contractor, though an owner of a one- or two-family home can also take it out. When you hire, ask whether the contractor is bonded with MN DLI, who will pull the permit, and whether your job needs one at all. Replacing a part that does not change the equipment's approval or make it unsafe is generally outside the permit rule, but a full replacement is not. Ask for the permit number in writing.
Hermantown-based, the HVAC contractor is open around the clock every day and handles furnaces, boilers and ductless mini-splits, with Lennox and Mitsubishi equipment.
Working since 1993, the plumbing firm handles boiler installation, maintenance and repair, plus water heaters and frozen pipes. Emergency service is offered in Duluth, Cloquet, Proctor and Hermantown.
Family-run since 1982, the company handles furnaces, heat pumps and air conditioning, with Carrier equipment and union-trained technicians.
Air conditioning work is the focus here, with coverage across the twin ports and surrounding areas.
Radiant heat and boilers sit alongside water heater installation and sump pump work, serving Duluth, Two Harbors, Proctor and Hermantown.
Founded in 2016, the company sizes, designs and installs heating and cooling systems in Duluth, Two Harbors, Cloquet and Proctor. Mitsubishi, Navien and Viessmann are among the brands it works with.
Frozen water repairs sit beside furnace, boiler and ductless mini-split work, with service in Duluth, Cloquet, Proctor and Carlton. Financing is available, and evenings and weekends are covered.
Around-the-clock service every day covers furnaces and HVAC work in Duluth.
Operating since 1934, the Duluth company covers HVAC work with service in Carlton and Hermantown. Free estimates are offered.
Service runs around the clock, every day, for heating repair, furnaces and boilers in Duluth, Two Harbors, Cloquet and Hermantown. Air conditioning, ductless mini-splits and water heaters are also handled.
Heat pumps, air conditioning and water heaters appear alongside heating repair and frozen pipes work. Open six days a week, with service in Duluth and Superior.
Amana furnaces and Fujitsu ductless mini-splits sit alongside heat pumps, boilers and air conditioning in Duluth and Superior. A limited lifetime warranty applies.
Offering emergency repairs, the Duluth company works on furnaces, boilers and heat pumps, with Mitsubishi and Bryant equipment, and has operated since 1993.
Family-owned since 2014, the firm answers heating calls day or night and handles cold-climate heat pumps, with Lennox equipment. Frozen pipes and burst pipes are also covered.
Established in 2003, the firm covers heat pumps, ductless mini-splits, furnaces and boilers in Kerrick, Carlton, Cloquet and Esko.
A propane supplier in Duluth and Superior also handles HVAC work, and has been in business since 2006.
Since 1944, the Superior firm has offered emergency service around the clock, with boiler, air conditioning and water heater work in Superior, Duluth and Cloquet.
Esko-based, the family-owned company installs, repairs and replaces heat pumps and furnaces, sets up smart thermostats, and offers emergency service day and night, with financing and free estimates.
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Have fuel-burning appliances such as a furnace or boiler inspected by a professional at least once a year.
Get written quotes from at least three contractors for the same work, and check references from recent clients.
Put it in a written contract: the work, price, deposit, start and finish dates, warranty, permits and clean-up. Paying cash to skip it leaves you no recourse.
Minnesota has no state licence for mechanical contractors. Instead, a contractor must file a mechanical contractor bond with MN DLI to contract for gas, heating, cooling, air conditioning, fuel burning or refrigeration work. Ask to see proof of that bond before you agree to anything, and keep a copy with your records. City of Duluth Construction Services & Inspections (source, opens in a new tab)
Yes. Duluth requires an HVAC permit for work such as furnace or boiler replacement, mini splits and air conditioners. A bonded mechanical contractor takes it out on ePlace. Ask who will apply, and ask for the permit number so you can confirm the work was recorded properly. City of Duluth Construction Services & Inspections (source, opens in a new tab)
For one- and two-family homes, Duluth allows the home's owner to take out the HVAC permit as well. Otherwise it must be taken out on ePlace by a bonded mechanical contractor. Decide who is responsible before work starts, and have that written into the quote or contract. City of Duluth Construction Services & Inspections (source, opens in a new tab)
Ask for the equipment involved, the work to be done, parts and labour listed separately, and whether a permit is needed. A like-for-like part swap may not need one, but a replacement does. Get the contractor's bond details and a clear statement of any warranty on the work.