About Us

Welcome to The Nest Family Behaviour Support Services, proudly serving York Region, where we are dedicated to supporting children with autism and developmental disabilities in reaching their full potential. Founded by Alessya Coletta, M.Sc., BCBA, R.B.A (ONT), a passionate and experienced professional in the field of Applied Behaviour Analysis (ABA), our team provides personalized, evidence-based services designed to empower both children and families.

Our Mission

At The Nest Family Behaviour Support Services, our mission is simple: to create a nurturing environment where children can develop essential skills, and thrive in everyday life. We believe that every child is unique, and therefore every intervention should be as well. Our goal is to provide compassionate, individualized support to help children and their families build confidence, independence, and a brighter future.

Who We Are

Alessya Coletta, the founder of The Nest Family Behaviour Support Services, has a deep commitment to improving the lives of children and their families. With a background in Applied Behaviour Analysis (ABA), behaviour therapy, and child development, Alessya has spent years working with children and families to create effective, customized interventions that promote long-term success.

Under Alessya’s leadership, our team is made up of dedicated, skilled professionals who work closely with each child and family to ensure the highest standards of care and support. We value collaboration with parents, educators, and other professionals to ensure that our approach is comprehensive and cohesive.

Our Approach

We are committed to using evidence-based practices that are rooted in scientific research and proven to work. Whether through Applied Behaviour Analysis (ABA) or other therapeutic approaches, we ensure that our services are always customized to meet the specific needs of each child. We know that every child is unique, and our interventions are designed to reflect that, promoting real, lasting change.

We also recognize that parents and caregivers are a vital part of the process. That's why we provide parent training and coaching, ensuring that you have the tools and support you need to reinforce your child's progress at home and beyond.

What We Do

At The Nest Family Behaviour Support Services, we offer a wide range of services, including:

1:1 Applied Behaviour Analysis (ABA) Therapy: Tailored to your child’s needs, we use ABA techniques to teach essential life skills, reduce challenging behaviours, and promote positive growth.
Parent Training and Coaching: We provide parents with the knowledge and skills to support their child’s development at home, ensuring consistency and progress in everyday life.
Behaviour Assessment and Analysis: We assess your child’s current skills and challenges to create a personalized plan that focuses on meaningful outcomes.
Individualized Intervention Plans: After thorough assessment, we design custom intervention plans aimed at promoting skill acquisition and reducing barriers to success.
School-Based Support & Transition Planning: We collaborate with schools to ensure a smooth transition for your child and provide in-person or virtual support to school paraprofessionals for ongoing consistency.
Social Skills & Life Skills Training: From communication to independence, we teach essential skills to help your child succeed socially and functionally in everyday situations.

Our Story

At The Nest Family Behaviour Support Services, our name reflects our core philosophy: creating a safe, nurturing space where children with autism and developmental disabilities can grow, learn, and ultimately thrive. Just as a bird’s nest is carefully built to provide warmth, comfort, and support until the young bird is ready to fly, we believe that children deserve a solid foundation of care and guidance until they are ready to soar on their own.

The idea of "The Nest" stems from the belief that every child needs a supportive environment that fosters independence, encourages exploration, and allows them to develop essential life skills. We are committed to providing individualized ABA therapy that supports each child in reaching their full potential—whether it's through building communication skills, or enhancing social abilities.

Our approach is all about creating a strong, supportive "nest" for every child, one where they can feel secure, understood, and empowered as they take steps toward greater independence. When the time comes, we want them to be ready to fly, equipped with the skills and confidence to thrive in the world around them.

Why Choose Us?

Experienced & Compassionate Team: Our team brings years of experience and a deep understanding of autism and developmental disabilities.
Individualized Care: Every child is unique, and so is our approach. We provide tailored plans that address your child’s specific needs and goals.
Collaboration & Support: We work closely with families, schools, and other professionals to ensure that everyone is aligned in supporting your child's development.
Evidence-Based Practices: We use scientifically validated strategies that have been proven to produce meaningful, measurable outcomes for children.
Flexibility & Convenience: Whether in-person or virtual, we offer flexible options to ensure that your child’s needs are met, no matter where you are.