Is My Contractor Licensed in Iowa?

Quick answer

Iowa licenses plumbing, HVAC and electrical work statewide through boards in the Department of Inspections, Appeals, and Licensing (DIAL), and, as of 2026, construction contractors who earn $2,000 or more a year from construction must also register with DIAL. Pest control companies are licensed by the Iowa Department of Agriculture and Land Stewardship. Plumbers: Iowa Plumbing and Mechanical Systems Board, Department of Inspections, Appeals, and Licensing (DIAL). Electricians: Iowa Electrical Examining Board, Department of Inspections, Appeals, and Licensing (DIAL). HVAC (heating and air): Iowa Plumbing and Mechanical Systems Board, Department of Inspections, Appeals, and Licensing (DIAL). Roofers: Iowa Department of Inspections, Appeals, and Licensing (DIAL), contractor registration.

Checked September 30, 2026. Every rule below links to the official source; licensing rules change, so confirm with the board before you hire.

Plumbers in Iowa

Licensed by: Iowa Plumbing and Mechanical Systems Board, Department of Inspections, Appeals, and Licensing (DIAL)

Iowa law requires all plumbing and mechanical contractors to be licensed by the Plumbing and Mechanical Systems Board and registered with DIAL. Contractors must carry public liability insurance and a surety bond and have a licensed Master of Record. You can search or verify plumbing licenses on the board's public portal.

Look up a license  ·  Source: Iowa DIAL, Plumbing and Mechanical Systems Contractor License  ·  20 plumbing companies in Iowa on 1-800Deals

Electricians in Iowa

Licensed by: Iowa Electrical Examining Board, Department of Inspections, Appeals, and Licensing (DIAL)

Iowa licenses electrical contractors, residential electrical contractors, master and journeyman electricians, and apprentices, and every electrical contractor must also be registered with DIAL. A new house must be wired by a licensed electrical contractor or residential electrical contractor. You can check a license on the state electrical license search.

Look up a license  ·  Source: Iowa DIAL, Electrical Licensing FAQs  ·  1 electricians company in Iowa on 1-800Deals

HVAC (heating and air) in Iowa

Licensed by: Iowa Plumbing and Mechanical Systems Board, Department of Inspections, Appeals, and Licensing (DIAL)

In Iowa, a contractor that provides mechanical, HVAC, refrigeration, sheet metal or hydronic services under contract must be licensed by the Plumbing and Mechanical Systems Board and registered with DIAL. Search or verify the license on the board's public portal before hiring.

Look up a license  ·  Source: Iowa DIAL, Plumbing and Mechanical Systems Contractor License  ·  2 hvac companies in Iowa on 1-800Deals

Roofers in Iowa

Licensed by: Iowa Department of Inspections, Appeals, and Licensing (DIAL), contractor registration

Iowa requires contractors who earn at least $2,000 a year from construction to register with DIAL, and DIAL lists roofers among the trades that must register. As of 2026, contractors with employees also need workers' compensation coverage and a $25,000 bond. Check the registration with DIAL's contractor search.

Look up a license  ·  Source: Iowa DIAL, Contractor Registration  ·  4 roofing companies in Iowa on 1-800Deals

Pest control in Iowa

Licensed by: Iowa Department of Agriculture and Land Stewardship (IDALS), Pesticide Bureau

Iowa law says no person may run a business applying pesticides to the land or property of another without a license from the Secretary of Agriculture, and the person managing or applying for the business must pass a certification exam. Use the department's applicator and company lookup to confirm the license.

Look up a license  ·  Source: Iowa Code 206.6, License for commercial applicators  ·  7 pest control companies in Iowa on 1-800Deals

Garage door companies in Iowa

Licensed by: Iowa Department of Inspections, Appeals, and Licensing (DIAL), contractor registration

DIAL's contractor rules do not list a separate garage door license. Contractors who earn at least $2,000 a year from construction work must register with DIAL (as of 2026), and DIAL's definition of construction is broad, covering installation of prefabricated building equipment such as elevators and revolving doors; it does not name garage doors specifically. Ask the company whether it is registered and check it in DIAL's contractor search.

Look up a license  ·  Source: Iowa DIAL, Construction contractors definition of construction  ·  5 garage doors companies in Iowa on 1-800Deals

Water damage restoration in Iowa

Licensed by: Iowa Department of Inspections, Appeals, and Licensing (DIAL), contractor registration

Rebuild and remodeling work after water damage is construction under Iowa's contractor registration rules, so a company that earns at least $2,000 a year from construction must register with DIAL. Any plumbing or HVAC repairs also require a Plumbing and Mechanical Systems Board license. Check the registration with DIAL's contractor search.

Look up a license  ·  Source: Iowa DIAL, Contractor Registration  ·  30 water damage restoration companies in Iowa on 1-800Deals

Frequently asked questions

Do contractors have to register in Iowa?

Yes. As of 2026, Iowa requires individual and business contractors who earn at least $2,000 a year from construction work to register with the Department of Inspections, Appeals, and Licensing. People who work only on their own property do not need to register.

Can I do electrical work on my own house in Iowa?

According to DIAL, an owner does not need a license to work on an existing single-family principal residence that qualifies for the homestead tax exemption, but a new house must be wired by a licensed electrical contractor, and inspections are required for all new electrical installations.

Who licenses pest control companies in Iowa?

The Iowa Department of Agriculture and Land Stewardship licenses businesses that apply pesticides to other people's property. The pesticide company is licensed and its applicators are certified.

This page is general information, not legal advice. 1-800Deals does not license, verify or endorse contractors. See all states: contractor licensing by state.