They are not located in Katy but Friendswood - Extremely unreliable. You cannot count on them to come out - I've been calling for three months and still they have not come out to fix the system. It has been broken longer than it has worked - I'm still in warranty - but that runs out in a few months - I think they might wait till my warranty expires and then try to charge me. Go with another provider - Save yourself the hassle.