Plumbing & HVAC Contractors in Humboldt, Iowa
3 public registry records for Humboldt.
Source observed 2026-11-02: Iowa Department of Inspections, Appeals, and Licensing. Registration is not a quality rating. A recorded location does not establish a service area.
State registry category: Plumbing/Heating & A/C Contractors. This is the complete registry for Humboldt. Premiere members appear first, marked with the gold check. Owner-verified listings follow, then listings with published business details, then everyone else, alphabetical within each group. Nobody is ranked by quality. How this list is built →
Also searched as: plumber, plumer, plummer, plumbing, hvac, furnace, boiler, heating.
1 of 3 listings publish services; 0 publish hours. These are published details, not availability guarantees.
- Hoag's Plumbing & Heating INC.
Humboldt, IA · Humboldt County
Plumbing/Heating & A/C Contractors
Registration last issued or renewed 2026-08-28
REGISTERED(515) 332-2283 - North Central Iowa Service LLC
Humboldt, IA · Humboldt County
Plumbing/Heating & A/C Contractors
Registration last issued or renewed 2026-07-22
REGISTERED(515) 332-1506 - R&G Electric INC
Humboldt, IA · Humboldt County
Plumbing/Heating & A/C Contractors
Registration last issued or renewed 2026-09-01
REGISTERED(515) 890-2161
More plumbing & hvac contractors nearby in Humboldt County
- A Prime Refrigeration Co INC
Thor, IA · Humboldt County
Plumbing/Heating & A/C Contractors
Registration last issued or renewed 2026-08-12
REGISTERED(515) 576-3558
How many plumbing/heating & a/c contractors are registered in Humboldt?
As of November 2026, 3 plumbing/heating & a/c contractors based in Humboldt hold a construction contractor registration with the State of Iowa, 3 of them currently in Registered status. That is a share of the 1,509 plumbing/heating & a/c contractors registered statewide. This is the complete State registry for Humboldt, not a curated selection.
- In Humboldt
- 3
- registered in this trade
- Currently registered
- 3
- in active status
- Not current
- 0
- expired or lapsed, still on record
- Renewing in 90 days
- 0
- registrations due to expire
Comparing beyond city limits? All 1,509 plumbing/heating & a/c contractors registered in Iowa →
What to know before hiring plumbing & hvac contractors in Iowa →