Webroot main customer service number is 1-833- Webroot ™ or +1+(888) 843-6040 [US- Webroot ™] (Live Person), available 24/7. To speak to a live person at Webroot , simply call their toll-free customer service number 1+(888) 843-6040. A Webroot representative can help you with billing, technical support, or account access issues.