AtYourDoorLabs: Your Test. Your Time. Your Terms. We offer Free PCR COVID testing at 3600 Matlock Road, Arlington, TX. We also offer a host of other bloodwork tests. Our Hours of Operation are Monday - Friday from 8:00am to 6:00pm, Saturday & Sunday Closed. AYDL provides quick and easy collection with fast turn-around time and accurate results you trust. Our trusted partner, Clinical Pathology Laboratories, Inc. (CPL) has served the medical community for more than 70 years and continues to offer the highest quality laboratory services dedicated to the individual needs of practitioners and their patients. More than 1,900 employees work at CPL's 100,000 square foot main laboratory facility and at their regional laboratory operations located across the Southwest.