A builder has been accused of sexually assaulting a woman while assessing a home for flood damage in Townsville in the aftermath of the natural disaster. 

The man, 46, allegedly inappropriately touched the woman without her consent at a Kirwan home last Wednesday and will face Townsville Magistrates Court on April 16, police say.

Townsville detectives are appealing for information from anyone aware of similar incidents in suburbs surrounding the north Queensland city, which include Idalia, Rosslea, Hermit Park or Kirwan.