Theresa Will

M.A., Registered Psychotherapist/Owner

Theresa is a Registered Psychotherapist with over 19 years experience working in mental health. She has Bachelor degrees in Psychology and Sociology, along with a Masters degree in Counselling Psychology. Theresa has spent the majority of her career working in Children’s Mental Health in various roles in the community as well as residential settings. Theresa has experience in providing group, individual and family therapies, as well as a strong interest in supporting couples in their relationships; her educational background was specialized in each of these areas. In addition, she completed academic work in psychological assessment and has extensive experience supporting individuals with assessing their needs, in order to create treatment plans that address the root cause of distress.

On a personal level, Theresa is a proud Mom to 15 and 19 year old boys and three pups. In her spare time, she enjoys being active with her loved ones including running, biking, kayaking, boating, working out, wandering around amusement parks or taking in a sporting event. During quieter, more relaxing moments, she enjoys a good book with a cup of tea, a bubble bath, or binge watching TV series on Netflix.


Individual Therapy, Couples Counselling,Family Therapy, and Consultation



Will Therapy Services offers a wide range of services including: Individual Therapy (Ages 10 and up), Couples Counselling and Family Therapy.  Goals for treatment are always determined by you, the client and treatment interventions are individualized to your specific needs - there is no "one size fits all" approach at Will Therapy Services.   

Here at Will Therapy Services, we utilize various treatment methodologies to assist clients on their therapeutic journey including Dialectical Behaviour Therapy (DBT), Cognitive - Behavioural Therapy (CBT), Solution-Focused approaches, Psychodynamic therapies, Emotion-Focused (EFT), and Narrative therapies. Further to this, Theresa has extensive training in trauma and has began the process of becoming a Certified Brainspotting Practitioner, a cutting edge trauma specific treatment for all age ranges.  Please see Areas of Expertise section for more detailed information regarding each specific treatment area and the scope of practice.  

Additionally, Will Therapy Services offers consultation services for a wide range of challenges you may be experiencing with your child (ages 6 and up).  Navigating the children's mental health and school systems can be tiring, confusing and exhausting.  Will Therapy Services is available to provide consultation in regards to children's mental health services, systems challenges and other available supports in the Waterloo Region.


The cost of services range from $120 to $140 per therapy hour (50 minutes), plus HST.  We can offer a sliding scale, dependent on your personal situation.  Please ask for more information.  Psychotherapy and Clinical Counselling services are covered by many benefit companies.  Please check with your benefit provider and let us know prior to your session to ensure you maximize your coverage.  As of August 1st, Theresa will be offering Psychology services covered under Psychology benefits.  The cost will be $200 inclusive in order to cover the cost of Psychology Supervision. Please ask for more information if interested.


You do not require a referral to book an appointment. Please see our Contacts section for information on how to book an appointment.  Please specify which therapist you would like to book an appointment with.    


Contact Us

We are here to help! Contact us to book an appointment, ask questions, or to leave a message for Will Therapy Services to contact you. 

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16 John St. W., 2nd Floor
Waterloo, ON N2L 1A7