10 Best HVAC Companies in Duluth, MN

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Last Updated: February 25, 2025

If you're like the average American, more than half of your energy bill (55%, per the Department of Energy) goes toward heating and cooling your home. You don't want to spend more than you need to on temperature control in your Duluth home, so it's important to make sure all systems are functioning properly.

Browse our guide to the top HVAC companies in Duluth to find the best choice for you and your home. Our topic contractors can help you stay comfortable while reducing your bills.

Top 10 Best HVAC Companies in Duluth

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Mesaba Heating & Air Conditioning

Mesaba Heating & Air Conditioning Logo

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User Rating

405 E 41st St, Hibbing, MN 55746 (218) 262-4745 mesabaheating.com

Prompt service delivery

Free quote

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Indoor air quality
Filtration
Inspection
Maintenance
Ductless
Boiler installation
Duct cleaning
Ventilation
Emergency services
Radiant heating
Ac installation
Furnace installation

Aire Serv of Northeastern Minnesota

Aire Serv of Northeastern Minnesota Logo

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User Rating

1303 MN-45, Cloquet, MN 55720 (218) 451-4055 aireserv.com

Reliable customer support

Free quotes

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

Indoor air quality
Emergency services
Maintenance
Ac installation
Furnace repair
Ventilation
Duct cleaning
Furnace installation
Ac repair

Brent's Heating & Cooling

Brent's Heating & Cooling Logo

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201 Chestnut Ave, Carlton, MN 55718 (218) 384-4719 brentshvac.com

Informative resources

Clear pricing policy

Services Offered

Furnace repair
Boiler installation
Ductless
Indoor air quality
Furnace installation
Ac installation
Ac repair
Maintenance

Elza Heating Co, LLC

Elza Heating Co, LLC Logo

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2615 Golf Course Rd, Ashland, WI 54806 (715) 209-7628 elzaheating.com

Clear pricing policy

Free quote

Services Offered

Ductless
Ac installation
Boiler installation
Ventilation
Furnace repair
Boiler repair
Furnace installation
Emergency services
Indoor air quality

TruTemp Heating and Cooling LLC

TruTemp Heating and Cooling LLC Logo

Our Rating

User Rating

9 Hillside Rd, Esko, MN 55733 (218) 451-4677 trutempheatingandcooling.com

Reliable customer support

Informative resources

Clear pricing policy

Free quote

Services Offered

Maintenance
Furnace installation
Boiler installation
Ac installation
Indoor air quality
Emergency services
Radiant heating

Twin Ports Custom Climate (TPCC)

Twin Ports Custom Climate (TPCC) Logo

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User Rating

1328 Oakes Ave, Superior, WI 54880 (715) 203-4627 twinportscustomclimate.com

Reliable customer support

Informative resources

Free quotes

Clear pricing policy

Services Offered

Indoor air quality
Ac installation
Emergency services
Furnace installation
Filtration

MMT Heating & Cooling

MMT Heating & Cooling Logo

Our Rating

User Rating

5501 Miller Trunk Hwy, Duluth, MN 55811 (218) 729-1585 mmtheating.com

Informative resources

Services Offered

Ductless
Boiler installation
Indoor air quality
Maintenance
Furnace installation
Filtration
Ventilation
Emergency services

Krause Heating & Cooling

Krause Heating & Cooling Logo

Our Rating

User Rating

2020 W 1st St, Duluth, MN 55806 (218) 722-6354 krauseheating.com

Clear pricing policy

Free quotes

Prompt service delivery

Services Offered

Ac installation
Furnace installation
Ac repair
Emergency services

D G Solem & Sons

D G Solem & Sons Logo

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User Rating

5102 1/2, 5102 Dodge St, Duluth, MN 55804 (218) 525-3123 dgsolem.com

Informative resources

Reliable customer support

Services Offered

Indoor air quality
Ac installation
Maintenance
Ventilation
Boiler installation
Radiant heating
Furnace installation

Harbor Mechanical Inc

Harbor Mechanical Inc Logo

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User Rating

2315 Lismore Rd, Duluth, MN 55804 (218) 758-6237 harbormechanical.com

Informative resources

Reliable customer support

Free quotes

Services Offered

Filtration
Ac repair
Maintenance
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

An HVAC system that's broken or old likely needs professional attention for repairs or replacement. Watch for these signs that your system needs service:

  • Rust, cracking, or corrosion
  • Frequent breakdowns and need for repairs
  • Refrigerant leaks
  • Poor air circulation or uneven heating/cooling
  • Temperature control issues or thermostat malfunctions
  • Higher than normal energy bills
  • Strange noises when the system turns on
  • An HVAC system that's over 15 years old

If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can pinpoint problems and recommend whether repair or full HVAC replacement is the better solution.

Cost of HVAC Installation and Maintenance in Duluth

The cost of HVAC installation or maintenance will differ depending on the kind of unit you have. Common kinds of HVAC units include the following:

  • Split or mini-split: If your home's ductwork can't accommodate a central HVAC system, you probably have a split or mini-split system. Split systems have interior units in each room to control temperature. These indoor units all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system performs similarly to a standard split system, but has the capacity to draw on either electricity or gas for power.
  • Heat pump: Heat pumps exchange hot and cold air between your house and outside. They don't create their own heating and cooling, so they work more effectively in more mild climates and may not be as effective during Duluth's cold winters.
  • Packaged heating and air: Packaged HVAC systems work best in smaller houses. They consist of a single combined heating and air conditioning unit, typically located in a basement or attic. This unit is typically small, energy-efficient, and straightforward to maintain.

The price of HVAC maintenance also depends on what kind of work being done. HVAC systems are complicated and may require different kinds of maintenance. The prices of some common jobs are as follows:

HVAC Unit TypeCost
Split$1,839-$4,688
Hybrid Split$3,726-$6,864
Heat Pump$2,885-$29,397
Packaged Heating and Air$241-$402

Ways to Save Money on HVAC Costs

Essential HVAC maintenance is important, but can be pricey. Luckily, there are steps homeowners can take to reduce wear and tear on their system and lower future maintenance needs.

  • Keep your system clean. Regularly cleaning condenser fan blades, ductwork, indoor evaporator coil, and grills helps your HVAC system run efficiently and lowers your risk of mold. The National Air Duct Cleaners Association advises cleaning your heating and cooling system when it starts to look dirty.
  • Monitor for potential problems. Keep an eye on your system for issues, for example by consistently checking your thermostat and energy bills. This enables you to address problems before they get too expensive.
  • Change the position of your blinds seasonally. Leaving your blinds open during the colder months helps warm your home with passive solar heating. Closing the blinds in warmer seasons helps prevent some heat from getting inside. Doing both helps lessen the demand on your HVAC system.
  • Change filters regularly. Air flows best through your HVAC system when you change out or clean the filters every 1–3 months. Also try not to let debris pile up on the outdoor parts of your HVAC.
ServiceCost
Filter Replacement$60-$161
Condensor Cleaning$1,207-$3,621
Thermostat Repair$80-$201
Ductwork Cleaning$386-$966

How To Choose a Local HVAC Company

Knowing what to look for in an HVAC company is important for a successful project. Look for an experienced, licensed contractor that can give you peace of mind and ensure your system provides reliable air conditioning and heating for your home.

Compare Multiple Bids

Contact at least three HVAC providers for quotes. Explain your issues and schedule an in-person inspection if possible. Compare providers' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid providers that pressure you or demand upfront payment.

Check Credentials

Look for an HVAC company that employs qualified technicians with the necessary licensure and training. HVAC contractors in all states must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.

There are no state-level licensing requirements for HVAC technicians in Minnesota, although all contractors are required to file a $25,000 mechanical contractor bond with the Department of Labor and Industry. Many areas also have local licensing regulations, so always check with your city or municipal government to make sure your contractor meets all requirements. You should also check reviews and complaints on sites like Google Reviews, Yelp, and the Better Business Bureau (BBB). Choose a company with glowing reviews and testimonials about fantastic customer experiences.

Understand Work Details

Make sure you understand the details of your project before starting. For HVAC repairs, have your provider list which parts require replacement and why. Get confirmation that your technician will clean and test the system after the repair to ensure that everything works. When replacing your HVAC, ask your installation company to provide details on the new brand, energy efficiency, model, features, and estimated installation time. Before work begins, make sure you understand the process your provider will use to select the correctly sized system for your home and what the cost will be.

Compare Warranties

Good HVAC companies offer warranties on service and equipment installations. The more complete the coverage, the better. Compare warranty details between providers and pick the one that offers the best protection for a fair price.

Get Quote in Writing

Get written quotes before beginning HVAC work. The quote should include costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Duluth, MN

Generally, you should have your HVAC system inspected twice a year. After that inspection, your HVAC technician will tell you what, if any, services are required. You should also call a technician if you notice any new issues, like unusual smells, strange noises, or leaks. If your home has ductwork, it should be serviced every few years.

The best times to have an HVAC inspection are during the spring and fall. Technicians tend to be less busy during these times, so it will be easier to get an appointment. This also helps get your system ready for the summer and winter, which is when it normally gets the most use.

You can save energy during the winter by reducing how much power your HVAC system uses to heat your home. Keep your thermostat as low as you can and avoid making drastic changes in the temperature — only increase or decrease it a few degrees at a time. If you're able to, try switching to a smart thermostat.

It takes roughly one to three days to have your HVAC system installed or replaced. If you only need a furnace or a single air conditioning unit, this can take between half a day and two days. This timeline will be affected by the size of your home, how easily accessible your system is, and any new issues your technician uncovers.

For a 2,000-square-foot home, you'll want a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Duluth, you'll probably want a furnace on the higher end of (or even above) this range.

For a 2,000-square-foot home, you'll also want an air conditioning unit with around 2.5 to 5 tons of capacity. In Duluth, a unit with a lower capacity may be sufficient. In general, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.

There are a number of ways you can make your HVAC system more energy-efficient:

  • Make sure your air ducts remain clean, and change or clean your air filters on a regular basis.
  • Schedule regular inspections to take care of issues as they arise.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep your inside temperature as close to the outside temperature as you can.
  • When it comes time to replace any part of your system, see if there are Energy Star-certified or other environmentally friendly options.

Other Duluth, MN Home Services

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