Try this code in your template. Make sure to replace the post_type and custom taxonomies ( service & county ) with their appropriate slugs.
$page_link = get_permalink();
$services = get_terms( 'service' );
$counties = get_terms( 'counties' );
$args = array();
$args['post_type'] = 'business';
$args['paged'] = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
if ( isset( $_GET['service'] ) ) {
$args['service'] = $_GET['service'];
$page_link = add_query_arg( 'service', $_GET['service'], $page_link );
}
if ( isset( $_GET['county'] ) ) {
$args['county'] = $_GET['county'];
$page_link = add_query_arg( 'county', $_GET['county'], $page_link );
}
if ( is_array( $services ) ) {
echo '<ul>';
foreach ( $services as $service ) {
echo '<li><a href="' . htmlentities( add_query_arg( 'service', $service->slug, $page_link ) ) . '">' . $service->name . '</a></li>';
}
echo '<li><a href="' . htmlentities( remove_query_arg( 'service', $page_link ) ) . '">None</a></li>';
echo '</ul>';
}
if ( is_array( $counties ) ) {
echo '<ul>';
foreach ( $counties as $county ){
echo '<li><a href="' . htmlentities( add_query_arg( 'county', $county->slug, $page_link ) ) . '">' . $county->name . '</a></li>';
}
echo '<li><a href="' . htmlentities( remove_query_arg( 'county', $page_link ) ) . '">None</a></li>';
echo '</ul>';
}
query_posts( $args );
if ( have_posts() ){
while ( have_posts() ) {
the_post();
// Do Something
// Pagination
}
}