Contact Us

Get in Touch

CMS’s team of customer service representatives are available 24 hours a day, 7 days a week and have the experience and knowledge to ensure you get the personal attention you need. To report an outage or speak to a Customer Service representative please call 800-605-5994

Send Us A Message

Contact Info

Customer Service 24/7

800-605-5994

Our Email

info@cmstelco.com

Our Location

900 Straits Turnpike, Middlebury, CT 06762 Suite #204

Working Hours

Mon-Fri: 8AM-5PM