24/7 emergency service · Duluth, Superior & 45 miles · licensed in MN & WI

Mon–Fri 7:00am–5:30pm, Sat 8:00am–2:00pm

Commercial · Duluth, Superior & 45 miles around

Commercial HVAC Repair — Duluth, Superior & the Twin Ports

Our building's heating or cooling is down and it is affecting the business.

$89 diagnostic, credited toward the repair when you approve the work. Answered 24/7.

Short answer

Who repairs commercial HVAC in Duluth and Superior?

We service commercial rooftop units, split systems, boilers, unit heaters and refrigeration across the Twin Ports, with 24/7 dispatch because a restaurant or clinic cannot wait until Monday. Commercial calls are quoted with an hourly rate plus parts, or covered under a maintenance agreement with priority response and no after-hours premium.

What downtime actually costs you

A residential no-heat call is a comfort problem. A commercial one is a revenue problem, and sometimes a liability problem. A restaurant that loses make-up air cannot legally run its hood. A clinic that loses cooling in a server or medication room has a compliance issue. A retail space at 55°F loses the afternoon. A manufacturing space with a failed unit heater can have a freeze exposure across its whole sprinkler system.

That reality shapes how we dispatch. Commercial no-heat and no-cool calls are triaged by business impact — food safety, patient care, freeze risk to a building's wet systems, and occupancy — not by who called first.

It also shapes what we carry. Contactors, capacitors, belts, motors, ignition controls, gas valves, limit switches, thermostats, economizer actuators and common refrigeration parts are on the truck, because a second trip for a $40 part is a day of lost revenue for you.

The equipment we actually see in Twin Ports commercial buildings

Packaged rooftop units are the backbone of retail, office and strip-mall space here, and our climate is hard on them. Ten months of freeze-thaw, snow load, and salt-laden air off the lake corrode cabinets, seize economizer dampers and crack condensate pans. Most of what we repair on RTUs is weather-driven, not run-hour-driven.

Steam and hot water boilers in the older commercial stock — downtown Duluth, the Superior business district, the old Lincoln Park and Spirit Valley buildings, schools and churches. These are substantial plants with real safety controls, and they need someone who understands low-water cutoffs, pressure controls and combustion rather than someone whose experience is residential furnaces.

Gas-fired unit heaters and make-up air in shops, warehouses, garages, marine and port facilities and the industrial buildings along the harbour. Direct-fired and indirect-fired make-up air is its own discipline and is where a lot of restaurant and industrial problems actually live.

Split systems and VRF in newer office and medical fit-outs, and a growing amount of ductless in converted commercial space. Plus refrigeration everywhere — every bar, restaurant, grocery, convenience store, brewery and floral shop in the Twin Ports lives or dies on it.

Documentation, because your insurer and inspector will ask

Every commercial visit produces a written report: equipment identified by unit tag and serial, readings taken, work performed, parts used, and what we recommend and why. It goes to whoever you tell us to send it to.

That record does real work. It supports warranty claims, satisfies insurance and inspection requirements, gives a property manager a defensible maintenance history across a portfolio, and means the next technician — ours or anyone's — is not rediscovering your building from scratch.

For multi-site owners and property managers we keep an equipment list per address with model, serial, install date, filter and belt sizes and refrigerant type, so a call about 'the unit over the north end of the building' does not start with a scavenger hunt.

When to call us

  • A rooftop unit is not heating or cooling a zone and tenants are complaining
  • Refrigeration temperatures are drifting — product is at risk
  • A restaurant hood is running without make-up air (a code and safety problem)
  • Boiler lockouts, low-water alarms, or pressure control faults
  • Breakers tripping repeatedly on HVAC equipment
  • Freeze risk to sprinkler or plumbing systems from a failed unit heater
  • Repeated short cycling on equipment nobody has measured
  • You inherited a building and have no idea what condition the HVAC is in

What commercial HVAC repair costs in the Twin Ports

Quoted per project

Commercial work is quoted hourly plus parts rather than flat-rate, because the equipment population is too varied for a price book. We tell you the rate and the estimated hours before we start. Maintenance-agreement customers get a discounted rate, priority dispatch, and no after-hours premium — which is usually where the real saving is.

Ranges are typical installed costs in the Twin Ports area, not quotes. We give you a firm price in writing before any work starts.

Commercial HVAC Repair — questions we get asked

Do you offer 24/7 commercial service?

Yes, and for commercial it matters more than for residential. A restaurant walk-in drifting on a Saturday night or a clinic with no heat on a Sunday cannot wait. Maintenance-agreement customers get priority dispatch and no after-hours premium.

How is commercial pricing structured?

Hourly plus parts, not flat-rate — commercial equipment is too varied for a price book to be honest. We state the rate and estimated hours before starting. Agreement customers get a discounted rate and no after-hours premium, which is usually a bigger saving than the discount itself.

Do you work with property managers on multiple buildings?

Regularly. We maintain a per-address equipment list with models, serials, filter and belt sizes and refrigerant types, consolidate reporting the way you need it for your owners, and can hold keys or access codes with documented procedures.

Can you service equipment you did not install?

Yes — most of our commercial work is on equipment somebody else installed. We service the major manufacturers and will tell you plainly when a unit has reached the point where continued repair is a worse investment than replacement.

Do you cover Superior and Wisconsin commercial properties?

Yes, with Wisconsin credentials. Superior's port, industrial and downtown commercial stock is a core part of our work, and the Douglas and Bayfield County towns are inside our normal area.

Commercial HVAC Repair by town

Local detail for the towns where we get called out for this most — what is actually different about doing this work there.

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Looking for home service?

We also do residential heating and cooling

Furnaces, boilers, air conditioning, cold-climate heat pumps and water heaters for homes across Duluth, Superior and 45 miles around — with 24/7 no-heat service.

See residential services

No heat? Call us now.

We answer 24 hours a day, every day of the year — Duluth, Superior and every town within 45 miles, in both states. $89 diagnostic, credited toward the repair when you approve the work.

Call 24/7 — (218) 461-1049