Prepare Your Cooling System For The Heat Regular maintenance and tune ups increase efficiency and extend the life of your system. Restrictions may apply. Call for more details. Schedule Service CALL 630-425-8236 CALL 630-425-8236 Prepare Your Cooling System For The Heat Prepare Your Cooling System For The Heat Regular maintenance and tune ups increase efficiency and extend the life of your system. Schedule Service Restrictions may apply. Call for more details.