Walking through our doors, you realize that serenity has followed you inside. The beautiful interior spaces in all of our locations have been designed to help reduce stress and promote well-being. Calming color palettes, natural elements, and a soothing atmosphere let our clients know that they are at Mountainside, where comfort and compassion are our guiding principles.

Detox
For individuals dependent on drugs or alcohol, the journey of recovery often starts with detox. This critical process of removing toxic substances from the body serves as the catalyst for a healthier life free from addiction. Learn more.
Residential
Our intensive 35-night inpatient addiction treatment program serves as the catalyst for you to completely transform your life and gain the tools needed to maintain sobriety after completing treatment. Removed from the stress, triggers, and temptations of everyday life, our serene campus at the foot of the Berkshire mountains serves as the perfect backdrop for you to fully engage in your recovery – mind, body, and spirit. Read more.
Extended Care
To fortify your newfound sobriety, you may need time and space away from triggers and negative influences to strengthen your recovery. Extended Care, our structured sober living program, consists of three phases to help you develop the fundamental skills and abilities you need to successfully live on your own as a person in recovery. Read more.
We offer a wide range of alcohol and drug addiction treatment programs at multiple locations to help you access the therapy and care you need to move forward in recovery. At each of our centers, you can expect highly individualized, holistic treatment for total wellness.
Canaan
Mountainside’s main campus is situated at the foothills of the majestic Berkshire mountain range in northwest Connecticut, in the idyllic town of Canaan. Surrounded by lush greenery and open skies, you will be far removed from distractions. Read more.
Wilton
Mountainside Wilton provides a warm and welcoming environment for individuals to receive first-rate alcohol and drug addiction treatment while remaining at home within their communities. Read More.
Chappaqua
Located an hour north of New York City, near the center of Westchester, Chappaqua is an easy commute from Pleasantville, Briarcliff Manor, Rye, Mt Kisco, Irvington, and Bronxville. Read More.
Huntington
Located in Long Island, Huntington is just an hour away from New York City and is an easy commute from Lloyd Harbor, Jericho, Old Westbury, Northport, and Smithtown. Read More.
New York City
Mountainside NYC Chelsea offers an array of services for those in recovery, addiction treatment professionals, and the community. At the heart of our New York City recovery resource center is our Recovery Coaching program, which provides personalized addiction recovery services to help individuals develop and maintain a sober lifestyle. Read More.
Ramsey
Mountainside Ramsey provides you with the individualized addiction treatment and care you need, no matter what stage of recovery you are in. Whether you are new to sobriety, have experienced a setback, or need some extra support during difficult times, we can help you achieve your short and long-term recovery goals. Read More.