All electrical, plumbing, mechanical, refrigeration, and fire sprinkler contractors must have a valid State of Iowa contractor’s license issued by the appropriate licensing board. All contractors must provide a certificate of insurance with proof of $1,000,000.00 of general liability insurance coverage prior to issuance of permit. Per Sections 103.22.7 and 105.11.3 of the Code of Iowa, property owners are not prohibited from performing work on their principal residence, if it is not larger than a single-family dwelling, or farm property, excluding commercial or industrial installations or installations in public use buildings or facilities, as long as the residence qualifies for the homestead tax exemption.
(Code of Iowa, Sec. 103.22.7 and Sec. 105.11.3)