Plumbing contractors in Duluth, MN

41 plumbing contractors with a Minnesota DLI plumbing contractor license list Duluth as their city (DLI file downloaded November 4, 2026). The city is where the business is based; a contractor may also serve nearby towns, so ask about your address. How to confirm a license.

41licensed contractors

10with a website listed

71individual master plumbers

Before you hire: Who may do plumbing work in Minnesota · Replacing a water heater: license and permit · How to check a license

A G Obrien Plumbing & Heating Co.
Duluth, MN · DLI plumbing contractor license PC001260
(218) 336-2860

A M Mechanical
Duluth, MN · DLI plumbing contractor license PC644515
(218) 348-3008

A W Kuettel & Sons Inc.
Duluth, MN · DLI plumbing contractor license PC643830
(218) 722-3901

Advantage Air Plumbing Heating & Cooling Inc.
Duluth, MN · DLI plumbing contractor license PC150082
(715) 817-4404

All Service Heating LLC
also: KB Plumbing & Heating
Duluth, MN · DLI plumbing contractor license PC648160
(218) 260-3133

Aqua Tech Plumbing Solutions LLC
Duluth, MN · DLI plumbing contractor license PC794890
(218) 341-1596

Bills Plumbing and Heating LLC
Duluth, MN · DLI plumbing contractor license PC643660
(218) 391-5006

Caldwell Plumbing & Heating Inc.
Duluth, MN · DLI plumbing contractor license PC712119
(218) 591-3441

Carlson Duluth Co.
Duluth, MN · DLI plumbing contractor license PC651588
(218) 727-0063 · Website

Design Heating LLC
Duluth, MN · DLI plumbing contractor license PC715020
(218) 428-5914 · Website

Fossum Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC644376
(218) 393-4416 · Website

Guthrie Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC645288
(218) 348-7473

Harbor Mechanical Incorporated
Duluth, MN · DLI plumbing contractor license PC644764
(218) 525-7473 · Website

Hietala Plumbing & Heating
Duluth, MN · DLI plumbing contractor license PC668549
(218) 624-7883

Humes Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC645007
(218) 721-4676

Integrity Mechanical Services LLC
Duluth, MN · DLI plumbing contractor license PC779769
(218) 341-5308 · Website

Kalkbrenner Plumbing & Heating Inc.
Duluth, MN · DLI plumbing contractor license PC643700
(218) 626-3316

L & S Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC653521
(218) 729-0392 · Website

Maxx Mechanical LLC
Duluth, MN · DLI plumbing contractor license PC150317
(218) 600-7561

Mick Carlson Plumbing LLC
also: Micks Plumbing LLC
Duluth, MN · DLI plumbing contractor license PC802815
(218) 576-6721

Modern Mechanical and Automation LLC
Duluth, MN · DLI plumbing contractor license PC772658
(715) 817-2400 · Website

Murphs Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC000597
(218) 393-6957

North Lakes Plumbing Heating and Air LLC
Duluth, MN · DLI plumbing contractor license PC751648
(218) 409-4668

Northern Sun Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC150309
(218) 491-3203

Outlaw Services LLC
Duluth, MN · DLI plumbing contractor license PC150017
(218) 343-0689

Plumbing and Heating Solutions Inc.
also: Lotta Hot Water
Duluth, MN · DLI plumbing contractor license PC734073
(218) 590-5294 · Website

Plumbing Precision Inc.
Duluth, MN · DLI plumbing contractor license PC645540
(218) 355-1003

Polar Plumbing Heating & Air Inc
Duluth, MN · DLI plumbing contractor license PC150226
(218) 966-7227

Premier Plumbing and Heating LLC
Duluth, MN · DLI plumbing contractor license PC797003
(218) 340-7285

Pro Service Plumbing LLC
also: Pro Service Plumbing
Duluth, MN · DLI plumbing contractor license PC802353
(218) 349-9809

R J Mehrman & Sons Inc.
Duluth, MN · DLI plumbing contractor license PC643446
(218) 391-6497

Radiant Plumbing and Heating Co.
Duluth, MN · DLI plumbing contractor license PC150330
(218) 241-1689

RG Brown Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC796230
(218) 348-6609

RN Plumbing and Heating LLC
Duluth, MN · DLI plumbing contractor license PC649369
(218) 390-6379

RRC Carlson Brothers Inc.
also: Carlson Bros Inc.
Duluth, MN · DLI plumbing contractor license PC644056
(218) 723-8351 · Website

Shubitz Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC645569
(218) 727-2595 · Website

Stone Plumbing and Heating Inc.
Duluth, MN · DLI plumbing contractor license PC695195
(218) 525-4450

Streamline Plumbing and Heating LLC
also: Streamline Plumbing and Heating
Duluth, MN · DLI plumbing contractor license PC150320
(218) 310-5280

Sundland Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC002102
(218) 348-4394

The Jamar Company
Duluth, MN · DLI plumbing contractor license PC644545
(218) 628-1027

Twin Ports Plumbing & Heating LLC
Duluth, MN · DLI plumbing contractor license PC771273
(218) 277-9336

Also: 71 individual master plumbers list Duluth (individuals, not contractors).

Contractors listed here are licensed plumbing contractor businesses with a phone number. Street addresses are not published.