(218) 461-104924/7 Emergency
TwinPortsHeating · Cooling

HVAC Services in Duluth, MN & Superior, WI

Twin Ports Heating & Cooling repairs, installs, replaces, and maintains every HVAC system found in a Northland home — furnaces, central air conditioning, boilers, cold-climate heat pumps, ductless mini-splits, and smart thermostats. We serve Duluth, Superior, and the surrounding Twin Ports communities with upfront, written pricing and a 24/7 emergency line for no-heat and no-cool calls. Licensed in both Minnesota and Wisconsin, with fully stocked trucks so most repairs are finished in a single visit.

Call (218) 461-1049 to schedule service.

Request HVAC Service (218) 461-1049

Services we provide

Six HVAC services. One local crew.

Each section below covers what we repair, install, and maintain — plus the brands we service and a link to the dedicated service page.

Air Conditioning Repair & Installation in the Twin Ports

When a July heat wave rolls off Lake Superior and the humidity climbs, a failing AC turns a Duluth or Superior home uncomfortable fast. We repair, replace, and tune up central air conditioners and split systems of every major brand, and we carry the parts that fail most often so the system is usually cooling again the same day. New installations are load-calculated and sized to your home — not guessed — so you get even cooling, lower humidity, and a unit that doesn't short-cycle itself to an early grave. Every diagnosis comes with clear, upfront pricing before any work begins.

What we handle

  • AC blowing warm air or not cooling
  • Frozen coils and refrigerant issues
  • Same-day repair on most makes and models
  • Full system replacement and right-sizing
  • Pre-summer tune-ups and efficiency checks

Brands we service

Carrier · Trane · Lennox · Bryant · Goodman · Amana · Rheem · York · American Standard

Learn more about AC serviceRequest Service

Furnace Repair & Installation Built for Northland Winters

A furnace failure in a Twin Ports January is not an inconvenience — it's an emergency, which is why we run a 24/7 no-heat line. We diagnose and repair gas, propane, and electric furnaces across all major brands, and when a unit is past saving we replace tired 80% AFUE systems with high-efficiency 95–98% AFUE models sized correctly for your home and our climate. Proper sizing matters more here than almost anywhere: an oversized furnace short-cycles and wears out early, while an undersized one can't keep up in a sub-zero cold snap. We explain repair-versus-replace honestly, with the price in writing first.

What we handle

  • No heat or furnace won't ignite
  • Short cycling or running constantly
  • Cracked heat exchanger and safety inspections
  • 80% to 95–98% AFUE upgrades
  • 24/7 emergency no-heat service

Brands we service

Carrier · Trane · Lennox · Bryant · Goodman · Amana · Rheem · York · American Standard

Learn more about furnace serviceRequest Service

Cold-Climate Heat Pump Installation in Duluth & Superior

Heat pumps used to be a poor fit for the Northland — not anymore. Today's cold-climate heat pumps deliver efficient heat down to -15°F and below, and they qualify for Minnesota and Wisconsin rebates and federal tax credits that take a real bite out of the install cost. We most often design dual-fuel systems that pair a heat pump with your existing or new furnace: the heat pump handles the milder shoulder seasons at a fraction of the cost, and the furnace takes over on the coldest Duluth nights. The result is lower year-round energy bills without giving up performance when the lake-effect cold settles in.

What we handle

  • Cold-climate heat pumps rated below -15°F
  • Dual-fuel design with furnace backup
  • Rebate- and tax-credit-eligible equipment
  • Heat pump repair and mode-switching issues
  • Year-round heating and cooling from one system

Brands we service

Mitsubishi Electric · Carrier · Trane · Bosch · Daikin · Lennox

Learn more about heat pump serviceRequest Service

Ductless Mini-Split Installation for Older Twin Ports Homes

Much of Duluth and Superior's housing stock predates central ductwork — and tearing out plaster to add it rarely makes sense. Ductless mini-splits solve that: quiet, high-efficiency heating and cooling delivered room by room with no ducts required. They're ideal for finished basements, attic conversions, additions, sunrooms, and historic homes where comfort has always been uneven. We design single-zone and multi-zone systems with individual temperature control for each space, so you stop heating and cooling rooms nobody is using. Installations are clean, code-compliant, and sized to the actual heat load of each zone.

What we handle

  • Heating & cooling for homes without ductwork
  • Single-zone and multi-zone configurations
  • Additions, basements, attics, and sunrooms
  • Quiet, room-by-room temperature control
  • High-efficiency, rebate-eligible equipment

Brands we service

Mitsubishi Electric · Daikin · LG · Fujitsu

Learn more about ductless mini-splitsRequest Service

Boiler Repair & Replacement in Duluth & Superior

Hydronic (hot-water) heat is everywhere in the Twin Ports' older neighborhoods, and a good boiler can outlast the homeowner — but only with the right service. We repair, convert, and replace cast-iron, mod-con, and combi boilers, and we stock the common parts that strand other contractors, so repairs are usually same-week rather than next-month. Whether you're nursing a decades-old cast-iron boiler in a historic Duluth home or upgrading to a high-efficiency condensing unit, we'll lay out your realistic options — repair, conversion, or replacement — with the cost in writing before we start.

What we handle

  • Boiler making noise or losing pressure
  • No heat from radiators or baseboard
  • Cast-iron, mod-con, and combi boiler service
  • High-efficiency condensing-boiler upgrades
  • Service for historic Twin Ports homes

Brands we service

Weil-McLain · Burnham · Lochinvar · Navien · Bosch

Learn more about boiler serviceRequest Service

Smart Thermostat Installation & Setup

A thermostat is only as good as its wiring and its programming — and in our climate, dual-fuel and zoned systems are easy to set up wrong. We install and correctly configure ecobee, Google Nest, and Honeywell Home smart thermostats, including the dual-fuel and multi-zone setups that trip up a lot of DIY installs. Programmed properly for Twin Ports winters, most homeowners see 8–15% lower heating bills the first season. We also handle thermostats that have stopped responding, lost their schedule, or aren't talking to the equipment correctly.

What we handle

  • Thermostat unresponsive or off-schedule
  • Smart thermostat install and Wi-Fi setup
  • Correct wiring for dual-fuel systems
  • Zoned and multi-stage configuration
  • Programming tuned for our climate

Brands we service

ecobee · Google Nest · Honeywell Home

Learn more about smart thermostatsRequest Service

Decision help

Repair or Replace?

Not every breakdown means a new system. We help you weigh the cost of the repair against the equipment's age, efficiency, safety, comfort, and likelihood of repeat failures. A newer system with a single failed part is usually worth fixing. An older furnace, AC, boiler, or heat pump with a track record of breakdowns is often cheaper to replace over its remaining life — especially when a high-efficiency upgrade cuts your monthly bills. We show you both numbers, with upfront pricing, and let you decide.

What Counts as an HVAC Emergency?

Call our 24/7 emergency line if your home has no heat during freezing weather, your furnace is short-cycling and can't hold temperature, your air conditioning fails during extreme heat, or your system shows signs of electrical burning. These can't safely wait for a next-day appointment in our climate.

If you smell gas or hear a CO alarm, leave the home and call 911 or your utility's emergency line first. Once the immediate danger is handled, call us at (218) 461-1049 and we'll take it from there.

24/7 Emergency · (218) 461-1049

How it works

How service works

  1. 1

    Reach out

    Call or request service and tell us what your system is doing and where you're located.

  2. 2

    We schedule the soonest window

    Emergency no-heat and no-cool calls are prioritized.

  3. 3

    We diagnose and give you options

    A technician finds the issue and explains your choices with upfront pricing.

  4. 4

    We complete approved work

    We finish the job and document everything in writing.

Service area

Areas we serve

We dispatch from the Duluth–Superior core and provide the same prompt local response across the Twin Ports — from Park Point to the Iron Range.

View all service areas

Maintenance — Twin Ports Comfort Club

The cheapest HVAC emergency is the one that never happens.

Our maintenance membership includes two precision tune-ups a year, 15% off repairs with no after-hours fees, and priority scheduling during heat waves and blizzards — so you're at the front of the line, not the back.

See plan details

Frequently asked

HVAC services FAQ

Quick answers to what homeowners ask us most. Need something else? Call (218) 461-1049.

What HVAC services do you offer in Duluth and Superior?

We provide repair, installation, replacement, and maintenance for furnaces, central air conditioning, boilers, cold-climate heat pumps, ductless mini-splits, and smart thermostats throughout Duluth, MN, Superior, WI, and the greater Twin Ports region. We handle both residential and light commercial work.

Do you repair all major HVAC brands?

Yes. We service and install every major HVAC brand, including Carrier, Trane, Lennox, Bryant, Goodman, Amana, Rheem, York, American Standard, Mitsubishi Electric, Daikin, LG, Fujitsu, Weil-McLain, Burnham, Lochinvar, and Navien — plus ecobee, Nest, and Honeywell thermostats. Our trucks are stocked so most repairs are one visit.

Do you offer emergency HVAC service?

Yes. Our phones are answered 24/7 and we run an emergency line for urgent no-heat and no-cool calls. In a Twin Ports winter a no-heat call is prioritized, because a failure in freezing weather can't safely wait. Call (218) 461-1049 any time.

Do you serve both Minnesota and Wisconsin?

Yes. We're licensed in both Minnesota and Wisconsin and serve the full Twin Ports area on both sides of the border — Duluth, Hermantown, Proctor, Cloquet, and Two Harbors in MN, and Superior, Solon Springs, Poplar, and South Range in WI, among others.

How is pricing handled — will I know the cost before work starts?

Always. A technician diagnoses the issue and gives you written, upfront pricing before any work begins. There are no surprise fees and no pressure to replace a system that can reasonably be repaired.

Do you install new systems, or only repair?

Both. We repair existing equipment and design, size, and install new systems — including high-efficiency furnace and AC replacements, dual-fuel heat pump systems, ductless mini-splits, and boiler upgrades. New installs are load-calculated and sized to your specific home, not estimated.

How soon can you come out?

We schedule the soonest available window and prioritize emergencies. With fully stocked trucks, most repairs are completed in a single visit rather than spread across multiple trips. For urgent no-heat or no-cool issues, call rather than submitting a form.

Do heat pumps and mini-splits really work in our climate?

Yes — modern cold-climate heat pumps are rated to heat efficiently down to -15°F and below, and we typically pair them with a furnace in a dual-fuel setup so you're covered on the coldest nights. Ductless mini-splits are an excellent fit for older Twin Ports homes without ductwork.

Ready when you are.

Same-day appointments for most service calls. 24/7 emergency response in Duluth, Superior, and the Twin Ports.

Request HVAC Service (218) 461-1049
Call (218) 461-1049