I've been using Carter weed for 2 years now and their service is FANTASTIC! They have a gaurentee and if you see a weed they come back and spray sometimes I think I'm their pain in the butt customer but no matter what I get a happy voice on the other end of the phone and a smile from the guys that come and spray. BEST COMPANY EVER! Great service and great price I told my neighbor and he's going to be using them as well.