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. You can also submit a trouble ticket below.
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