- Change price from “Free” to “Contact us!” add_filter( 'woocommerce_free_price_html', 'hide_free_price_notice' ); add_filter( 'woocommerce_empty_price_html', 'hide_free_price_notice' ); add_filter( 'woocommerce_variable_free_price_html', 'hide_free_price_notice' ); add_filter( 'woocommerce_variation_free_price_html', 'hide_free_price_notice' ); function hide_free_price_notice( $price ) { return ( 'Contact us!', 'woocommerce' ); }