Mr Nesdale said the attacks were frustrating and meant spending money on repairs he could not afford.
Mayoral candidate Kelvin Clout, also standing for an At Large seat, said he had noticed a major increase in vandalism this election. Some of his signs had been knocked down, while another had Groucho glasses added.
Alan Davidson, standing for an At Large seat, said most of his signs has been kicked, punched, broken or graffitied at some point - not once but several times over.
Bev Edlin, standing for Otumoetai-Pyes Pa Ward, said her sign in Brookfield had been taken, and other signs had been damaged in other areas.
Mayoral candidate Larry Baldock, also standing for Otumoetai-Pyes Pa, said one of his signs had been knocked over twice, although one of those times may have been from the wind.