26 AC Replacement Contractors in Duluth, MN

4.3 avg rating
3,921 total reviews4 offer 24/7 service
Need emergency service? 10 HVAC providers in Duluth offer 24/7 availability

Top-Rated AC Replacement Contractors in Duluth

#1

ASP Mechanical

4.8(1,861 reviews)
24/7 Highly Rated

Of 1,861 reviews, the overwhelmingly positive majority cite technician communication skills and diagnostic thoroughness as primary reasons for recommending ASP…

5028 Miller Trunk Hwy, Duluth, MN 55811
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#2

MMI Home Improvement

4.8(614 reviews)
Highly Rated

Six of eight detailed reviews award five-star ratings, with technicians Mark and Alex receiving multiple mentions for professionalism and skill. Positive…

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#3

A G O'Brien Plumbing & Heating Co

4.8(392 reviews)
24/7 Highly Rated

Every reviewer awarded a 5-star rating, with 6 of 6 sampled reviews praising specific technicians by name, Garrett, Daryl, Brad, and Will among them. Emergency…

4907 Lightning Dr, Duluth, MN 55811
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All AC Replacement Contractors (26 total)

NorthStar Heating and Cooling

4.8(371)
Highly Rated

Every one of the 371 reviewers awarded 5 stars, with technician names, Ray, Corey, Chaz, Russ, appearing…

301 S Central Ave, Duluth, MN 55807
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Victory Heating and Air

4.9(134)
Highly Rated

All 132 reviews carry 5-star ratings, with multiple reviewers noting relationships spanning five to ten…

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Lakeside Heating and Air Conditioning

5.0(114)
Highly Rated

All eight sampled reviewers award 5 stars, with five explicitly naming Travis as the technician who arrived…

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Design Heating, LLC

4.9(106)
Highly Rated

105 of 106 reviews award 5 stars, with customer language emphasizing reliability, technical skill, and…

5131 Washburn Rd, Duluth, MN 55803
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Veterans Heating & Cooling

4.9(100)
24/7 Highly Rated

All six detailed reviews award five stars, with every client naming Jeff as the technician they worked with.…

4085 Jeffrey Rd, Duluth, MN 55810
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Quail services llc

5.0(38)

All 38 reviews award perfect 5-star ratings, with every testimonial praising Nathan by name as the owner and…

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Northland Comfort Heating & Cooling

4.6(47)

47 reviews yield a 4.6-star average with five-star ratings comprising the majority. Emergency response…

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Elite Pro Services

5.0(20)

All 20 reviews award 5 stars, with multiple customers specifically naming technicians Naeem and Austin for…

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Guthrie Plumbing & Heating

4.8(19)

Five-star reviews dominate the dataset, with 19 ratings averaging 4.8 stars. Customers repeatedly cite Dale…

1005 W Morgan St, Duluth, MN 55811
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Fossum Plumbing & Heating LLC

4.5(17)

All eight detailed reviews award five-star ratings, with customers specifically praising Jamie's…

5244 Midway Rd, Duluth, MN 55811
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MAXX Mechanical LLC

5.0(12)

Eight reviewers describe emergency or same-day service experiences. The owner-technician Max is named in six…

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Mex-Mechanical Services

4.7(14)

All 14 reviewers award 5-star ratings, with 4 customers mentioning 10+ year relationships. Three reviewers…

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Candler and Sons Heating and Air

4.3(12)

Five of seven detailed reviewers award 5 stars, praising Candler's diagnostic honesty and emergency…

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Cloquet Plumbing and Heating LLC

4.0(12)

11 of 12 reviewers awarded five stars, citing Paul's same-day arrival promise, thorough explanations, and…

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Carlson Bros Mechanical Contracting

3.5(12)

Three of four detailed reviews mention pricing concerns, including credit card fees and quoted prices that…

2502 W Huron St, Duluth, MN 55806
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Andrea heating and cooling

5.0(4)

All 4 reviews award 5 stars, with customers specifically praising the technicians' competence, thoroughness,…

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JH Heating & cooling

5.0(4)

Four clients awarded perfect five-star ratings, with two specifically praising technician Jeremy for his…

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Dryke Plumbing & Heating Inc.

2.9(12)

Of 12 reviews, 3 are 5-star and 3 are 1-star, creating a polarized split. Positive reviews cite Jason Dryke's…

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AW Kuettel & Sons, Inc.

5.0(3)

All three client reviews award a 5-star rating, with one reviewer specifically praising the company's flat…

3930 Airpark Blvd, Duluth, MN 55811
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Gartner Refrigeration Company - Duluth

5.0(2)
24/7

Both customers awarded 5 stars, with Crystal specifically praising fair pricing on her ice machine…

2331 W Superior St, Duluth, MN 55806
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B & A Comforting Solutions

5.0(1)

1 reviewer awarded 5 stars, emphasizing same-weekend diagnosis and AC/coil replacement. The customer…

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Kool Brothers Heating and Air

0.0

This contractor has no publicly available customer reviews, making verified feedback unavailable for…

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A-International Appliance and HVAC Repair Inc

0.0
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AC Replacement Costs in Duluth

Replacement costs for aging systems in Duluth. If repair cost exceeds 50% of replacement, replacement is usually more economical.

ServiceLowAverageHigh
Central AC (3-ton, basic)
$6,160$8,960$12,320
Central AC (4-ton, mid-efficiency)
$8,400$11,760$15,680
Central AC (5-ton, high-efficiency)
$10,640$14,000$17,920
Full HVAC system (AC + furnace)
$12,981$15,042$15,792
Plus ductwork replacement
If existing ducts are aged/leaking
$2,352$3,360$4,480
Repair cost threshold50% rule: if repair > 50% of replacement, replace

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Replacement in Duluth, MN: What to Expect

Duluth's climate creates unusual HVAC priorities. Sitting at the western tip of Lake Superior, the city experiences average winter lows of 2 F with cold snaps well below zero from December through February. Summers remain cool, Lake Superior's cold water keeping highs around 76 F and only three days above 90 F annually. This means furnaces run continuously from October through April while air conditioning demands stay modest. The 29 contractors serving Duluth maintain an average rating of 4.4 across over 4100 reviews, reflecting proven expertise in this demanding environment where AC Replacement in Duluth requires understanding the region's unique thermal patterns.

Central AC replacement costs break down by system size and efficiency. A basic 3-ton central AC runs $6160 to $12320, while a mid-efficiency 4-ton unit costs $8400 to $15680. High-efficiency 5-ton systems range from $10640 to $17920. Minnesota law requires all HVAC contractors to hold an HVAC Contractor License from the Department of Labor and Industry, ensuring they employ a licensed Master HVAC technician for installations.

Local contractors earn repeat recommendations through specific strengths. At ASP Mechanical, reviewers consistently cite technician communication skills and diagnostic thoroughness across 1861 reviews. MMI Home Improvement draws praise for Mark and Alex, with customers noting their professionalism and skill. AG O'Brien Plumbing and Heating appears across six reviews, with technicians Garrett, Daryl, Brad, and Will mentioned by name for same-day emergency response.

Frequently Asked Questions

AC replacement in Duluth runs $2,352-$17,920 depending on system size and efficiency. A 3-ton basic central AC costs $5,500-$11,000 installed, a 4-ton mid-efficiency system $7,500-$14,000, and a 5-ton high-efficiency unit $9,500-$16,000. Full HVAC replacement (AC + furnace combined) averages $11,590-$14,100.

All HVAC Contractors in Duluth, MN

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