The Village of Winnetka bans the use of coal tar-based sealants on all public and private driveways, parking lots, and other roadway surfaces within Village limits. Coal tar is a carcinogenic waste material generated during coal processing that contains high levels of chemical compounds shown to be harmful to humans and animals.
All contractors and multi-family property owners must obtain a Pavement Sealant Applicators License through the Public Works Department. Property owners of single family lots applying sealant themselves do not need a Pavement Sealant Applicators License.
As an alternative to coal tar-based sealants, the Village recommends using asphalt-based sealants (sold in most home improvement stores), replacing asphalt with concrete or permeable pavers, or leaving roadways unsealed if appropriate.
In April 2020, letters were sent to previously-licensed contractors reminding them to renew their Pavement Sealant Applicators License to confirm their sealants meet Village requirements. For more information, please call Brendon Mendoza in the Public Works Department at 847-716-3550.