Water source or ground source heat pumps are among the most efficient means of heating and cooling available today. If you own a geothermal heat pump system in Wilmington, IL you must protect your investment by maintaining a proper inspection and service schedule to ensure long and trouble free operation. L & H SERVICES INC is uniquely qualified to provide geothermal heat pump service in Wilmington, IL. Our service technicians have the experience and equipment necessary to professionally maintain or repair your HVAC systems.