Complete technicians can repair any type of window within your home whether cracked or chipped. The key to allowing a sliding door to open properly is to repair or replace the roller and track located at the bottom of the door. This involves removal of the heavy door and analysis to see if the door track system needs to be repaired or completely replaced. Often times glass needs to be replaced because it is an eyesore or because you need to update your home. The key to allowing a sliding door to open properly is to repair or replace the roller and track located at the bottom of the door. This involves removal of the heavy door and analysis to see if the door track system needs to be repaired or completely replaced. Often times glass needs to be replaced because it is an eyesore or because you need to update your home. Screens may become damaged due to weather, kids or pets.