Activities Building at Mountainside Treatment Center in Canaan, CT

About Us

Mountainside is a nationally acclaimed behavioral health network providing individualized alcohol and drug addiction treatment. We respect each client’s recovery journey and have proudly served thousands of people in need for over two decades. By combining innovative clinical and holistic therapies with a data-driven approach, we empower our clients to completely transform their lives and achieve long-term recovery.

About Us


Our Mission

To raise the standard in comprehensive addiction treatment and provide an unsurpassed treatment experience for our clients.

Our History

In 1998, a small group of like-minded friends joined together to create Mountainside, a new type of alcohol and drug rehabilitation program centered on the individual rather than a pre-determined treatment methodology. They believed that supplementing traditional therapies with holistic wellness practices could vastly improve the efficacy of substance abuse treatment and better equip people with the tools they need to maintain long-term sobriety.

Our founders’ belief is now conventional wisdom.

However, we do not measure our success by the industry we changed; we measure it by the lives we have shaped.

Mountainside Through the Years

For over two decades, Mountainside has explored the connection between mental, physical, and spiritual well-being. By simultaneously healing mind, body, and spirit through personalized care, evidence-based treatment, and holistic therapies, we have raised the standard of addiction treatment. View some of our accomplishments through the years.

Women In Rehab

Warmth and Compassion

Our serene and welcoming environment, combined with our warm and compassionate staff and close-knit community of clients, make Mountainside the ideal setting for you to overcome your addiction.

Individualized Addiction Treatment Plan

Highly Individualized Care

By combining your various test and assessment results with statistical data housed in our CARMA system, we create a personalized wellness plan tailored to match your background, psychology, and recovery goals.

mountainside campus group yoga

Total Wellness

We offer an extensive variety of therapies to help you discover the mix that works best to keep you healthy and sober. And because supportive relationships are important, we also help you develop a strong recovery…

Group Outpatient Addiction Treatment At Mountainside Wilton Ct

Complete Continuum of Care

Our full spectrum of addiction treatment programs guide you through each stage of your journey, making it easy for you to access treatment and increasing your likelihood for long-term sobriety.

Man hiking in the mountains

Life-Changing Outcomes

Our mission is to help you rediscover your true self and live a happy, healthy life after treatment. And so, we help change your outlook and lifestyle so that you fully thrive – at home, school, and work.

Press Room

Explore our full archive of press releases and press coverage links. Get in touch to feature a Mountainside expert in your publication!

The Mountainside Scholarship Fund

Addiction inflicts damage and heartbreak on too many individuals and their loved ones each year. To help those battling addiction, we established the Mountainside Scholarship Fund. Backed by contributions from those who have witnessed the restorative effects of treatment on themselves or their loved ones, the fund helps provide comprehensive addiction treatment services to individuals in need – and brings them one step closer to recovery.

Learn more about the scholarship and how you can help.

Mountainside Cafe

Did you know that Mountainside runs a cafe near our main campus? The mission of Mountainside Cafe is to nourish and nurture the surrounding community by providing fresh, wholesome, and delicious foods made with ingredients from local farmers and producers. In addition to supporting local vendors, we are proud to provide a safe and supportive space for individuals in recovery to practice critical life skills as part of our programs.