- Search Contractor Registration: https://www1.iwd.state.ia.us/contractor.nsf
- Search for Licensed Electricians: http://www.dps.state.ia.us/fm/electrician/licensing/licensing_verification.shtml
- Search for Licensed Plumbing and Mechanical Professionals: https://eservices.iowa.gov/licensediniowa/index.php?pgname=pubsearch