Making the decision to begin therapy can be a life altering decision. Tessa believes that finding the right fit is the most integral part of the process. Tessa wants to ensure you have customized and individualized treatment plans that suit you best. She spends time in the first few sessions assessing needs and creating this plan with you in a collaborative way. Tessa would consider herself a natural, straightforward, open and easy going therapist who finds a way to connect this with evidence-based practices for the best results.  

At Calm Waters, we offer evidence-based therapy to support individuals facing various challenges, including ADHD, anxiety, emotion regulation, depression, anger, attachment disturbance, trauma, and family-related issues. We have experience working with difficulties with school avoidance and self-harming behaviors, along with providing parent training and/or consultation. Our services include:

  • Assessments/consultations with a psychiatrist
  • Individual therapy sessions
  • Parenting consultation sessions
  • Couples therapy


Tessa works from a client-centered, eclectic framework with an emphasis on Cognitive Behavioral Therapy (CBT), Exposure & Response Prevention (ERP), and Dialectical Behavioral Therapy (DBT). Tessa views psychotherapy as a collaborative process and will work with you to identify your challenges and create a collaborative plan to achieve your goals.


Tessa has 10+ years of experience working with children, youth, and adults. She previously worked at an Adult Inpatient Psychiatric Unit, in Child Welfare working with at-risk children and youth with complex needs. Most recently, she was employed as a Mental Health Counsellor with the Avon Maitland District School Board. She began her private practice journey with Brookhaven Psychotherapy and continues to provide services for this agency as well as servicing her own practice, Calm Waters.


We offer a free 15-minute phone or video consultation to discuss how we can be of help. Please reach out to us to book your consultation.

Tessa Zadorsky, MSW, RSW
Social Worker & Psychotherapist
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BA/Honors Psychology - Thesis Track
Master’s of Social Work from Sir Wilfrid Laurier University
(Clinical Social Work & Community Policy & Planning)

Level 1 & 2 CBT

Certifications in Progress
Anxiety Treatment Clinical Specialist

About Calm Waters

“The mind is like water. When it's turbulent, it's difficult to see. When it's calm, everything becomes clear”. Buddha

230 Victoria St London, ON
[email protected]