Petitiful service and installation is third rate at best. They do not check to see who OWNES the home BEFORE they go attaching that disk to brick decking or any other parts of a house, too lazy to instal correctly with using their own ground wire, they will drill holes into shutters, lay wire on roof, and drill holes inthe duct work housing all without any permission. Then to try to get a resolve it takes numerous calls, looping to anyone but the person who will get this resolved. Unproffessional. Beware.