Thank you for choosing Kings Electric and Air Conditioning for your service needs! I was dispatched out to you property to consult with you with installing a 3 way smart switch on a 4 way circuit. I notified you that the switch works for all applications but may need other smart switches at the other 3 way locations. You explained to me that you would like me to install it anyway This estimate includes: - installing one smart switch at one 3 way location Your technician: Robert Saverino