One Stop Services Ltd is an Occupational Health & Safety Testing Company in Saskatoon offering COVID-19 PCR and Rapid Antigen Testing with results in 30 mins or less in our licensed medical lab as well as all Occ Health Services.Our MissionEfficient Service, Integrity, and AccuracyCHECK OUR WEBSITE FOR MORE INFO!**PCR AND ANTIGEN COVID TESTING ON WEEKENDS: BY APPOINTMENT ONLY**