Calling the Kwikset Customer Service line at their toll-free number is one of the simplest ways to get in touch with them. In addition to that, you can contact them by writing an email. Additionally, live chat support is available to help you get in touch with them.mYou can also get in touch with them via their Facebook or Twitter page. From Monday through Friday, between the hours of 7 am and 4 pm, you can get in touch with the Kwikset customer support department.