Carlson Duluth Company
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About Carlson Duluth Company
Carlson Duluth Company has kept homes and businesses comfortable in the Duluth area for multiple generations. With a 4.0-star rating from 62 verified reviews, this full-service mechanical contractor handles heating, cooling, and plumbing needs across Duluth and Superior, Minnesota. The company operates Monday through Friday from 8 AM to 5 PM, providing free estimates for every project.
The contractor maintains dealer partnerships with Lennox and Mitsubishi, offering rebate-eligible equipment through Minnesota Power, Lake Country Power, and Minnesota Energy Resources programs. Their service menu includes mini-split AC systems, traditional furnace and air conditioning installation, boiler repair for residential and commercial properties, pipe lining with excavation capabilities, and tankless hot water heaters. This breadth allows them to serve both older homes needing boiler upgrades and newer construction requiring variable-speed heat pumps.
Customer reviews highlight both technical skill and responsiveness. Technician Zach arrived at a retail store within 30 minutes during -20 F weather to replace a failed roof-unit igniter. Another reviewer describes Carlson Duluth saving her frozen furnace three times over eight years, with same-day service during sub-zero emergencies. A third customer notes the team professionally respected her pet containment system during a furnace replacement.
What Customers Say
All three reviewers awarded five stars, with two specifically naming technician Zach and praising same-day emergency response. Positive feedback emphasizes diagnostic skill and respect for customer homes, while the 62-review average of 4.0 stars provides broader credibility.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Services
Furnace Repair & Installation
Heating system diagnostics, repair, and newLennox or Mitsubishi furnace installation with rebate program eligibility.
Air Conditioning & Cooling
Central AC and mini-split systems for residential and commercial cooling, including variable-speed heat pump options.
Boiler Repair
Residential and commercial boiler maintenance, repair, and replacement for older heating systems.
Plumbing & Pipe Lining
Full plumbing services with pipe lining and excavation for water and gas lines, plus union-trained plumbers.
Tankless Hot Water Heaters
On-demand water heater installation for unlimited hot water supply.
Mechanical Contracting
Commercial HVAC and plumbing contracting for businesses across Duluth and Superior.