Cosgriff Climate Control
- Website checked
Harbor Mechanical Inc
Plumbing and HVAC contractor in Duluth, Minnesota, covering heat pumps, air conditioning, heating repair, water heaters and frozen pipe thawing, with snow melt systems and snow clearance also offered.
What they do
The company repairs and installs heat pumps, air conditioning and heating systems, and also handles water heaters and plumbing work, including thawing frozen pipes. Its HVAC work covers furnace tune-ups, furnace replacement and new water heater installation, along with clogged drains and sinks. A snow melt system, which uses buried sensors and circulating fluid to keep driveways and walks clear, is offered, and snow plowing and sidewalk clearing are listed among its other work. Service covers homes as well as commercial and industrial properties. Free estimates are offered, estimate requests can be made online, and credit card payment is accepted. The firm works in Duluth and Superior, has been operating for 30 years, and is open Monday to Saturday.
- Heat pumps
- Air conditioning
- Heating repairs
- HVAC service
- Frozen pipes
- Water heaters
Listed under Heating and cooling emergencies
Where they work
What we checked
- Its own website lists this work: harbormechanical.com/hvac-services (opens in a new tab)
Checked 12 Nov 2026, from public sources.
Not yet verified. We haven’t contacted this business yet. Ask for a written quote before work starts.
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