Service calls from DFC Mechanical are your answer to almost any electrical or mechanical problem in your home or business. There is no charge if your challenge has not been resolved. This means that you can rest assured that when you call us @ 630-733-9000, that your problem will no longer be a problem. DFC's service techs are experienced, trained, and uniformed, ready to diagnose the cause of any issue that confronts you. The cost is then quoted upfront with options given to match your budget. DFC's techs are licensed electricians, certified in HVAC, and factory-trained in generator service and installation. The truck brought to your home will have 99% of all parts needed for a project, eliminating your downtime and lowering your cost. DFC Mechanical, Inc. warranties all service calls for 1 year following completion against defects in craftsmanship.