Activities Building at Mountainside Treatment Center in Canaan, CT.

About Us

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

Our Mission

Mountainside strives to raise the standard in comprehensive holistic 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 rehab program centered on the individual rather than a pre-determined treatment methodology. They believed that supplementing traditional counseling and 12-step practices 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 positively shaped.

Our Values

Compassion  –  We are deeply aware of the situations and circumstances impacting the lives of the individuals in our community and, through the delivery of compassionate care, strive to lessen the pain and suffering that alcohol and drugs have caused.

Professionalism  –  We provide the highest level of professionalism by adopting best practices from across all fields and working collaboratively toward the common goal of continually improving the quality of our holistic rehab programs and services.

Integrity  –  We adhere to moral and ethical principles by demonstrating honesty, confidentiality, and trust to all individuals and families whom we serve and hold our clients’ rights to privacy sacred.

Commitment  –  We are committed to providing an unparalleled healing experience to our clients in an environment of safety, wellness, recovery, and clinical excellence.

An addiction treatment clinician meeting a client for the first time at Mountainside.


Meet Mountainside’s multi-disciplinary team of skilled substance abuse treatment professionals who provide you with unparalleled support on the road to total wellness. They are committed to educating you and your family about the nature of addiction, how it has affected your life, and what rehab treatment and services are needed to achieve and sustain sobriety.

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Waterfall at Mountainside Treatment Center in Canaan, CT

Photo Gallery

View our beautiful alcohol and drug rehab centers across the Northeast, thoughtfully designed to create an ideal environment for the recovery process. Each room – from therapy rooms to bedrooms to common spaces – provides the perfect setting for you to focus on reconnecting with yourself and finding your path to holistic wellness.

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An overheard shot of sober-living houses at Mountainside Treatment Center in CT.

Virtual Tour

Explore the 360° tour of our main campus in Canaan, CT for close-up visuals of our modern addiction treatment facilities and grounds. Surrounded by scenic views and 80 acres of private land in the foothills of the Berkshires, you will find a respite to restore and recover.

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An older man in a yellow dress shirt, reading a newspaper - Stock


Visit our newsroom to stay up to date with all of Mountainside’s notable happenings and press coverage, including articles written by our team of clinical, medical, and wellness experts sharing their insight on current trends in mental health and holistic addiction treatment.

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Dining Hall Staff chatting with Mountainside addiction treatment center clients in the Canaan dining hall.


Grow your career and make a real difference by joining our team. Mountainside has been recognized as one of the best companies in the drug and alcohol rehab industry, and every employee, regardless of their position, plays an important role in helping to create a uniquely positive healing experience for our clients.

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A man who is in long term residential treatment serving two customers at Mountainside Café

Mountainside Café

Enjoy a wholesome meal made with ingredients from local farmers and producers at Mountainside Café. In addition to supporting community vendors, you give individuals in recovery an opportunity to practice critical life skills in a safe, supportive work space.

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Since 1998, Mountainside treatment center has continually provided the highest quality of treatment and care to individuals struggling with alcohol and drug addiction. We have empowered over 20,000 people to transform their lives and achieve long-term recovery. As part of the year-long celebration, we’re taking a trip down memory lane with new exclusive content, including Before & After photos of our main campus, as shown below.


See All of Our Latest Anniversary Content

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