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Windsor Addiction Assessment and Outpatient Services (WAAOS)


Call Community Crisis Centre for mental health emergency


The Windsor Addiction Assessment and Outpatient Services (WAAOS) is a community based agency servicing Windsor and Essex County for individuals, aged 16 and older who are concerned or experiencing problems and/or negative consequences related to alcohol and/or drug use. WAAOS is an entry point into the Ontario Ministry of Health treatment system. It is the designated assessment and referral center in Windsor-Essex for persons in need of access to addiction supports and services, including treatment for addictions - alcohol and/or drugs.

Our Staff

This program is staffed by three (3) Social Workers who are proficient in the use of the Admission and Discharge Criteria and Assessment Tools (ADAT) and the Global Appraisal of Individualized Needs (GAIN).


Our services are provided in English, with limited outpatient services accessible with interpreter provided by the client. We are funded by the Mental Health & Addictions Branch of the Ontario Ministry of Health & Long Term Care.


How To Access Our Services

Call (519) 257-5220 ext. 1.



Walk-in. Attend our Walk-In Intake on Tuesday 1:30 p.m. to 4:00 p.m. or Friday 9:00 a.m. to 11:30 a.m.


All services are free* and confidential. 


Please Note

The walk-in clinic is first come, first served. Last appointment on Tuesday is 4:00 p.m. and Friday at 11:30 a.m.


For your intake please remember:

1. Bring your health card;

2. Please be alcohol/Drug free for 24 hours prior to coming to the walk-in clinic;

3. WAAOS is a scent-safe environment

4. Bring a list of prescribed medication(s).


These hour are subject to change at the discretion of WAAOS and/or for holidays. If you have questions about walk-in intake dates/times please call the department (See Contact Information below). 



Pathway of Care

Stage 1: Screening - helps determine what kinds of needs the individual may have/ Also referred to as "intake".


Stage 2: Assessment - clients will meet with a Social Worker to self-administer an assessment. They will be asked questions regarding their addiction, mental health, and activities of daily living.


Stage 3: Treatment Plan - a treatment plan will be developed with the client.



Frequently Asked Questions

For more information click here




100% funded by the Ontario Ministry of Health as confirmed by a valid health card.


Contact Information

Windsor Addiction Assessment and Outpatient Services (WAAOS)

Withdrawal Management and Assessment Centre Building

Hôtel-Dieu Grace Healthcare

3740 Connaught Avenue

Windsor, ON  N9C 3Z4

(519) 257-5220 ext. 1



8:30 a.m. to 4:30 p.m. Monday - Friday


Program Manager

Leslie Davis

(519) 254-2112


Families’ and Friends’ Role in Promoting Safety

 Family members and friends play an important role in patient safety.  Encouraging

attendance of appointments, taking medications and asking to be involved in
understanding and facilitating treatment plans is recommended among family
members and friends.  If family members and friends have serious concerns
about a loved one’s safety and well-being please utilize emergency (911) or
crisis hotline (519-973-4435) services or locations (nearest emergency room or
crisis centre) as needed.  You are always allowed to provide us with
information however we may not be able to relay information/feedback to you
directly.  For any important messages the hospital contact information is
provided on this website under the Contacts link.  
Thank you for your role in promoting safety.



Contact Us


General Info: (519) 257-5111


Voice Directory: (519) 257-5100



Visiting Hours 


1453 Prince Rd.


Windsor, ON N9C 3Z4