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Best HVAC & Furnace Repair Services in Duluth

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Design Heating logo
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Design Heating

5131 Washburn Road, Duluth, MN 55803
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  • Furnaces
  • Thermostats
  • Boilers
  • Duct Work

Business Description

Design Heating has been providing air conditioner installation services in Duluth and the nearby cities since 2016. The licensed, bonded, and insured company's founder is a certified geothermal designer CGD, and IGSHPA accredited installer of geothermal HVAC systems. The company can design and fit a wide range of in-floor systems as well as panel radiators, furnaces, and air conditioners. Design Heating's technicians can install standard A/C systems in homes with ductwork and ductless mini-split systems in those without.

Reputation:

We scour the internet for reviews from well-known resources. Each provider is evaluated based on the quality and quantity of their reviews, their presence on multiple review sites, and their average minimum rating.
5.0
Google
5.0 / 5 (7)
HomeAdvisor
5.0 / 5 (2)

Professionalism:

We hire mystery shoppers to call our providers anonymously and evaluate them. Providers who respond quickly, answer questions thoroughly, and communicate politely score higher.
5.0
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Kalkbrenner Plumbing & Heating logo
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Kalkbrenner Plumbing & Heating

12802 West 9th Street, Duluth, MN 55808
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  • Tune Up
  • Boilers
  • 24/7

Business Description

Kalkbrenner Plumbing & Heating has more than 23 years of experience providing a full range of air conditioning repair services in Duluth and the surrounding areas. The licensed company is available 24/7 to repair all parts in most makes and models built by the industry's leading brands. Its technicians additionally offer installation and maintenance services, working on brands such as Trane, Honeywell, and Bryant. Kalkbrenner Plumbing & Heating also specializes in residential and commercial plumbing services.

Reputation:

We scour the internet for reviews from well-known resources. Each provider is evaluated based on the quality and quantity of their reviews, their presence on multiple review sites, and their average minimum rating.
4.6
Google
4.5 / 5 (42)
Facebook
5.0 / 5 (10)
Yelp
4.5 / 5 (2)

Professionalism:

We hire mystery shoppers to call our providers anonymously and evaluate them. Providers who respond quickly, answer questions thoroughly, and communicate politely score higher.
5.0
Responsiveness
Friendliness
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Detail
Krause Heating & Cooling logo
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Krause Heating & Cooling

2020 West 1st Street, Duluth, MN 55806
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  • Air Conditioning
  • Furnaces
  • Carrier

Business Description

The NATE-certified technicians at Krause Heating & Cooling specialize in heating and air conditioner repair services in Duluth and the surrounding cities. The technicians can repair malfunctioning and broken parts in most systems designed by leading companies, such as Bryant. As a Carrier Authorized Dealer, the company has particular experience installing, repairing, and maintaining duct and ductless HVAC systems designed by that brand. Customers can pay with major credit cards or apply for financing from the company's partner, Payzer.

Reputation:

We scour the internet for reviews from well-known resources. Each provider is evaluated based on the quality and quantity of their reviews, their presence on multiple review sites, and their average minimum rating.
5.0
Angi
4.9 / 5 (37)
Google
5.0 / 5 (30)
Facebook
5.0 / 5 (14)

Professionalism:

We hire mystery shoppers to call our providers anonymously and evaluate them. Providers who respond quickly, answer questions thoroughly, and communicate politely score higher.
4.0
Responsiveness
Friendliness
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Detail
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Stone Plumbing & Heating logo
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Stone Plumbing & Heating

5758 Cant Road, Duluth, MN 55804
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  • Thermostats

Business Description

Stone Plumbing & Heating provides HVAC services to commercial and residential customers in Duluth. The company's technicians install new boilers and replace faulty ones to ensure comfort and efficient performance in homes and offices. These licensed contractors install heating systems in new construction and provide solutions for radiant heating systems, in-floor, radiator, and baseboard heating, and thermostat issues. The company also offers maintenance plans to ensure equipment stays in good working order.

Reputation:

We scour the internet for reviews from well-known resources. Each provider is evaluated based on the quality and quantity of their reviews, their presence on multiple review sites, and their average minimum rating.
4.9
HomeAdvisor
4.9 / 5 (9)

Professionalism:

We hire mystery shoppers to call our providers anonymously and evaluate them. Providers who respond quickly, answer questions thoroughly, and communicate politely score higher.
4.0
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Detail
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The Comfort Co. Heating & Cooling logo
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The Comfort Co. Heating & Cooling

4181 Thunderchief Lane, Hermantown, MN 55811
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  • Air Conditioning
  • Furnaces
  • Tune Up
  • Boilers

Business Description

The Comfort Co. Heating & Cooling provides HVAC servicing to property owners in Duluth and the surrounding regions. The company's experts help customers determine the heating or cooling system that is suitable for their homes. They also repair and replace malfunctioning and worn-out heaters and coolers to ensure customers experience comfortable temperatures in their homes. The team installs air conditioners and services the units to lower utility bills and prevent future repair costs.

Reputation:

We scour the internet for reviews from well-known resources. Each provider is evaluated based on the quality and quantity of their reviews, their presence on multiple review sites, and their average minimum rating.
4.6
Google
5.0 / 5 (8)
HomeAdvisor
5.0 / 5 (3)

Professionalism:

We hire mystery shoppers to call our providers anonymously and evaluate them. Providers who respond quickly, answer questions thoroughly, and communicate politely score higher.
5.0
Responsiveness
Friendliness
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Detail
Twin Ports Custom Climate logo
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Twin Ports Custom Climate

1318 Oakes Avenue, Superior, WI 54880
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  • Air Conditioning
  • Furnaces
  • Thermostats

Business Description

Twin Ports Custom Climate does business with clients all over the Duluth metro area, helping with residential and commercial HVAC systems of all kinds. This business has been operating since 2006 and still offers comprehensive installation services for air conditioning and heating systems. When problems arise it can also fix these systems and perform preventative maintenance to lower liability. Assistance is available for ductless systems, precision climate control, and ice making machines as well.

Reputation:

We scour the internet for reviews from well-known resources. Each provider is evaluated based on the quality and quantity of their reviews, their presence on multiple review sites, and their average minimum rating.
4.8
Google
4.8 / 5 (56)
Angi
4.5 / 5 (13)
Yelp
5.0 / 5 (1)

(+1 additional source)

Professionalism:

We hire mystery shoppers to call our providers anonymously and evaluate them. Providers who respond quickly, answer questions thoroughly, and communicate politely score higher.
5.0
Responsiveness
Friendliness
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Detail
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Frequently Asked Questions

How do residential HVAC systems work?

Central HVAC systems use ductwork and mechanical blowers to deliver heating and cooling across a home’s primary living areas. Refrigerant-based systems, such as heat pumps and air conditioners, use pressurized gas that raises or lowers the temperature by absorbing heat. Their principal components include the evaporator coil, compressor, condenser coil, and blower. Furnaces generate heat by burning fuel, such as oil, propane, or natural gas. Energy from the burners is captured by a heat exchanger, and a flue exhausts combustion byproducts outdoors. Nowadays, homeowners can choose between dual-fuel systems, ductless heat pumps, and variable-speed models that provide enhanced comfort and efficiency.

How often do I need to schedule HVAC service for my system?

Central heating and cooling systems should be serviced annually in the spring and fall. Air conditioners should be inspected every spring; furnaces should be tuned up in the fall, and heat pumps need to be serviced twice per year. Scheduling maintenance early in the season can help homeowners prevent breakdowns and avoid the rush.

Why do HVAC systems need regular maintenance?

Preventive maintenance for HVAC equipment is just as important as an oil change for a car. Regular service visits increase the system’s efficiency, prevent unnecessary wear and tear, and detect problems before they worsen. For optimal results, technicians inspect all electrical and mechanical components. This type of maintenance extends the system’s lifespan, prevents safety hazards, and helps homeowners enjoy long- and short-term savings.

What’s the best way to care for an HVAC system in a multifamily investment property?

HVAC maintenance helps landlords retain quality tenants and control their ownership costs. For best results, centralized and decentralized heating and cooling systems should be serviced in the spring and fall. Technicians can lubricate moving parts, measure refrigerant levels, clean the coils, and check the belts and bearings. Landlords should also consider supplying new air filters to tenants to prevent unnecessary wear and tear, and unit breakdowns related to restricted airflow.

What are the signs of a broken HVAC system?

Heating and cooling systems contain hundreds of parts, which means that almost anything can go wrong. Some warning signs are obvious. For example, if the air conditioner is blowing hot air or if the furnace won’t shut off, it’s time to call a professional. Other malfunctions can cause subtle decreases in comfort and efficiency. Regardless of the problem, responding quickly is generally the best way to avoid more significant repairs and expenses. Homeowners can protect themselves by recognizing the following warning signs:

  • Unusually high energy bills
  • Excessive mechanical noise
  • Starting difficulties
  • Sudden shutdowns
  • Continuous airflow
  • Temperature imbalances
  • High humidity
  • Unpleasant odors
  • Ice buildup on the coils
  • Leaks or water damage

Does a home warranty cover HVAC repairs?

Yes, many home warranty companies pay for HVAC repairs. This type of coverage may be standard or included as an optional add-on. In most cases, homeowners are responsible for an initial service fee. If the unit cannot be repaired, the company may pay for a replacement.

Will replacing the HVAC system increase my home’s value?

While most homeowners only recoup 35% to 50% of their installation costs, a new HVAC system can be a major selling point that attracts potential buyers and results in a faster sale. The benefits depend on the local climate, the type of market, and the condition of the existing system. Aging or poorly maintained equipment may encourage buyers to submit lower offers, especially if problems are revealed during an inspection.

Are HVAC service contracts worth it?

HVAC service contracts are agreements made between a customer and HVAC service provider at the time of HVAC installation for repairs that cover regular tune-ups and maintenance. Some of the benefits of an HVAC service contract include:

  • Customers don't have to remember to schedule seasonal maintenance
  • Scheduled maintenance can extend the overall lifespan of an HVAC system
  • Getting tune-ups seasonally can increase the energy efficiency of the equipment
  • Homeowners may save money by preventing emergency repairs

Some homeowners don't see the value in service agreements because they're essentially insurance policies—the cost of additional repairs and service isn't always higher than the annual fees.


What does an HVAC services technician do?

An HVAC services technician can handle anything related to heating, ventilation, air conditioning, related electrical needs, and often, refrigeration. Their most common responsibilities include:

  • HVAC equipment installation
  • Emergency heating and cooling repairs
  • Seasonal maintenance to increase efficiency
  • Thermostat checks and fine-tuning
  • Air quality testing and ductwork/ventilation service
  • Checking and troubleshooting electrical connections
  • Connecting HVAC equipment to refrigerant, fuel, and water lines

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