Custom Pet Doors From doggie doors to cat doors to any type of custom pet doors DanJo Windows & Doors has you covered. Your pet is a part of the family, why shouldn't they have the luxury of coming and going with the freedom your family members have? With our custom pet doors we have created a bigger walk-through space for your little fur ball, giving them the comfort they deserve. We custom build and manufacture all of our products in the USA. We provide free in-home estimates in the Los Angeles area but we can ship all of our products nationwide.