These days, glass dog doors are getting more and more popular because of having elegant look and friendly feature. Apart from it, installation of glass pet door improves your home décor and shows you utmost attention towards your pet. There are number of service providers are available today help you to install, repair and upgrade your glass pet doors. They’re expert enough to convert your regular glass door into animal friendly cat doors . However the professional ask number of questions before adding these doors to your home or commercial places such as size of door, size of pet, type of pet, age of pet and other. Semi-permanents pet door are designed with lock unit that is easily fit to your regular door. Depending on your need, you can go with permanent, temporary and semi-permanent doors.