26 Commercial HVAC Contractors in Duluth, MN
Top-Rated Commercial HVAC Contractors in Duluth
MMI Home Improvement
“Six of eight detailed reviews award five-star ratings, with technicians Mark and Alex receiving multiple mentions for professionalism and skill. Positive…”
NorthStar Heating and Cooling
“Every one of the 371 reviewers awarded 5 stars, with technician names, Ray, Corey, Chaz, Russ, appearing across multiple accounts. Four reviewers explicitly…”
All Commercial HVAC Contractors (26 total)
DBS
“4 of 365 reviews mention specific technicians by name, with Justin praised for thorough estimates and Jared…”
AP Mechanical Services LLC
“Every client review awards 5 stars, with 141 customers reflecting unanimous satisfaction. Multiple reviewers…”
Victory Heating and Air
“All 132 reviews carry 5-star ratings, with multiple reviewers noting relationships spanning five to ten…”
Veterans Heating & Cooling
“All six detailed reviews award five stars, with every client naming Jeff as the technician they worked with.…”
R Tillery
“All eight detailed reviews award 5 stars, with Ray specifically praised for on-time arrivals, reasonable…”
Northland Air
“All 47 reviewers award five stars, with multiple clients explicitly naming CJ as the technician delivering…”
Carlson Duluth Company
“All three reviewers awarded five stars, with two specifically naming technician Zach and praising same-day…”
MMT Heating & Cooling
“All 27 reviewers awarded 4 or 5 stars, with same-day emergency response mentioned positively across multiple…”
Lenard Electric
“Every reviewer awarded 5 stars, with multiple clients specifically mentioning Jim Lenard by name and praising…”
Sheet Metal Solutions, LLC
“All eight visible reviewers award 5-star ratings, with three specifically naming Mark as their point of…”
EJ Plumbing and HVAC
“All three reviews award perfect 5-star ratings, with each client specifically recommending the contractor for…”
Mex-Mechanical Services
“All 14 reviewers award 5-star ratings, with 4 customers mentioning 10+ year relationships. Three reviewers…”
The Jamar Company
“5 of 6 reviewers awarded 5 stars, with recurring praise for Mike's fabrication repairs, same-day emergency…”
Bill's Plumbing & Heating LLC
“All 11 reviewersaward5stars, with 5 specifically naming Bill or Tony as the technicians. Common themes…”
Duct Doctor USA, Inc.
“All 8 visible reviews award 5 stars, with technicians Carey, Chris, and Diego receiving individual…”
Gustave A Larson Company
“Three of four reviewers gave five-star ratings, with two explicitly recommending specific technicians by…”
Hvacprosupply
“All four reviews award perfect 5-star ratings, with unanimous praise for customer support and quick…”
Pro HVAC
“All three clients awarded five-star ratings, with consistent praise for transparent pricing, skilled…”
Gartner Refrigeration Company - Duluth
“Both customers awarded 5 stars, with Crystal specifically praising fair pricing on her ice machine…”
Fair Air Heating and Air Conditioning
“This contractor carries a 3.0-star average rating from 2 reviews. The sole detailed feedback describes a…”
Commercial HVAC Costs in Duluth
Commercial system pricing in Duluth. Actual costs vary significantly by building size and system type. Request a site-specific quote.
| Service | Low | Average | High |
|---|---|---|---|
Annual maintenance (per rooftop unit) Quarterly inspections | $550 | $1,100 | $2,200 |
Annual contract (small business, < 5K sqft) | $1,100 | $2,750 | $5,500 |
Annual contract (mid-size, 5K-25K sqft) | $3,850 | $7,150 | $11,000 |
Basic rooftop unit replacement | $7,150 | $11,000 | $16,500 |
Small business full system (< 5K sqft) | $8,800 | $17,600 | $27,500 |
Mid-size building (5K-25K sqft) | $27,500 | $55,000 | $88,000 |
Operating cost (per sqft annually) Utility + maintenance | $2 | $4 | $7 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
Commercial HVAC in Duluth, MN: What to Expect
Duluth occupies the western tip of Lake Superior, creating one of the most demanding heating climates in the continental United States. Winter temperatures regularly fall to 2 F, with extended cold snaps pushing readings well below zero from December through February. This persistent cold means furnaces operate continuously from October through April, making cold-weather system performance the primary concern for any business owner. Twenty-nine contractors serve the Commercial HVAC in Duluth market, maintaining an average rating of 4.2 across nearly 2,400 customer reviews.
Annual commercial maintenance for a single rooftop unit ranges from $550 to $2,200, while small businesses under 5,000 square feet typically sign annual service contracts between $1,100 and $5,500. Mid-size commercial properties from 5,000 to 25,000 square feet see annual contracts ranging from $3,850 to $11,000. Minnesota law requires all commercial HVAC contractors to hold an HVAC Contractor License from the state Department of Labor and Industry, meaning every legitimate service provider must employ a licensed Master HVAC technician. These price structures reflect system age, building complexity, and the intensive winter wear that Duluth's climate inflicts on heating equipment.
Three companies stand out in customer feedback. MMI Home Improvement receives praise for technicians Mark and Alex, with clients noting their professionalism and technical skill. NorthStar Heating and Cooling earns five stars from every reviewer, with technicians Ray, Corey, Chaz, and Russ repeatedly cited for arriving the same day or within two hours of the call. Kalkbrenner Plumbing & Heating Inc maintains a perfect five-star rating across 225 reviews, with technicians Mike and Tom specifically recognized for same-day service availability.
Frequently Asked Questions
Other HVAC Services in Duluth, MN
All HVAC Contractors in Duluth, MN
Complete directory of 115 contractors — browse alphabetically
A–Z
All HVAC Contractors in Duluth, MN
Complete directory of 115 contractors — browse alphabetically
A
- A G O'Brien Plumbing & Heating Co
- A-International Appliance and HVAC Repair Inc
- Absolute Heating and Air Services
- Advantage Air Plumbing, Heating, & Cooling
- After Hours Heating & Cooling
- After Hours Heating & Cooling LLC
- Air Max
- All Season Experts
- Andrea heating and cooling
- AP Mechanical Services LLC
- Arrowhead Refrigeration
- ASP Mechanical
- AW Kuettel & Sons, Inc.