Article Index

Iowa Contractor Licenses

Select a license to view its requirements, definition, exams, books, and classes. For specifics please contact the Iowa.

State Licenses

Master Hydronics with Gas

Installation, or repair of plumbing, mechanical, HVAC, refrigeration, sheet metal or hydronic systems and is otherwise lawfully qualified to conduct the business of plumbing, mechanical, HVAC, refrigeration, sheet metal or hydronic systems, and who is familiar with the laws and rules governing the same.

Master HVAC/Refrigeration with Gas

Installation, maintenance, repair, fabrication, alteration, and extension of air conditioning, refrigeration, piping vessels, warm air heating, low and high-pressure boilers, ventilation systems, duct systems, insulation, and related appurtenances within a complete system unlimited in horsepower or tonnage.

Master Mechanical with Gas

A Master Mechanical contractor can install maintain, repair, fabricate, alter, extend or design central air conditioning, refrigeration, heating, and ventilation (including ductwork in connection with a complete system only to the extent such ductwork is performed by the Contractor necessary to make complete an air distribution system) boiler and unfired pressure vessel systems, lift stations, equipment and piping and all appurtenances, apparatus, or equipment used in connection therewith.

Master Plumber with Gas

A master plumber with gas contractor can install, maintain, repair, alter or extend plumbing, sanitary drainage or storm drainage facilities, venting systems, public and private water supply systems, septic tanks, drainage and supply wells, swimming pool piping.

Journeyperson Hydronics with Gas

Knowledge of the installation, service, maintenance, and repair of hot water heating systems.

Journeyperson HVAC/Refrigeration with Gas

Journeyperson" means any person, other than a master, who, as a principal occupation, is engaged as an employee of, or otherwise working under the direction of, a master in the design, installation, and repair of plumbing, mechanical, HVAC, refrigeration, sheet metal, or hydronic systems, as applicable.

Journeyperson Mechanical with Gas

In order for an applicant to be certified as a mechanical journeyman or specialty journeyman by the board, the applicant must demonstrate possession of the knowledge, ability and skill to perform mechanical work in accordance with the plans and specifications therefor and in compliance with the building code and other applicable codes and regulations

Journeyperson Plumber with Gas

Installation, repair, maintenance, and extension of any plumbing system, including drains, waste, sanitary vents, water supply, fixtures, and indirect wastes; installation, repair, and maintenance of gas piping systems, including gas piping, appliances, vents, flues, tanks, and other related appurtenances.

Journeyperson Sheet Metal

Heating, ventilation, air conditioning, pollution control, fume hood systems and related ducted systems or installation of equipment associated with any component of a sheet metal system. "Sheet metal" excludes refrigeration and electrical lines and all natural gas, propane, liquid propane, or other gas lines associated with any component of a sheet metal system.