Downtown Testing Location
1428 Ouellette Ave., First Floor
Windsor, ON N8X 1K4
RT-PCR testing for International travel
NAAT testing for US travel
Testing results are released within
36 hours* from time of swabbing.
**The majority (~95%+) of PCR/NAAT results are delivered within 24 hours. Results are guaranteed to be delivered within 36 hours of sample collection for MLW Locations.
You must book your sample collection appointment(s) within the appropriate testing time period according to your destination country’s requirements. Medical Laboratories of Windsor is not liable and will not issue refunds for appointments booked outside of the appropriate testing time period.
If you do not have an Ontario Health Card, enter NONE
in the Health Card Number and Version Code fields.
Please review the picture below to ensure you enter your Health Number correctly.
Note that upon completion of booking your appointment, your credit card will be charged immediately.
• Please allow 4-6 weeks for our online payment software to return funds to your credit card.
• Cancellations are subject to processing fees.
• Cancellations made within 24 hours of the appointment will no longer be refundable as of November 1, 2021
Due to increased demand, the booking calendar may take longer to appear. Thank you for your patience.
Walk-in testing available as time permits.