Remove the old window and obtain a replacement.
How to install garage door window.
Caulk and a ach front window whenever you install a new window it will be exposed to the weather so you will need to add some protec on this can be achieved by using caulk.
With someone holding the outside window frame reinsert the screws into the inside retainer securing the glass.
Instructional video for changing an insulated garage door window.
Step 1 determine the measurements of the window you want to install.
This gives them height without making it hard to see outside.
Start by removing the wooden frame that holds the window in.
Remove the old pane and dispose of it safely.
Set the new pane in place.
Pull the inside retainer out of the door.
Carefully remove any broken or old glass.
If you prefer to have a view of the outside of your garage opt to place the windows in the third panel from the bottom.
Line each side of the window with caulk and then fit the window in place.
Have a partner hold the frame on the outside of the door in place until the job is done.
Insert the new glass panes.
With someone holding the outside window frame remove screws from the inside retainer.
Instructional video for changing an insulated garage door window.
Add 1 2 inch around for shims and insulation i e a total of 1 inch to both the vertical and horizontal dimensions to get the size of your window frame.
Fit the inside frame in place and screw the two sides back together.
All you need to do is line waterproof caulk around the edges of the window before inserting it into the door.
Without this the elements will be able to enter the garage through the window.
Any residue caulk should be wiped away using a rag.
Without doing this the elements will be able to enter the garage through the window.
Remove the screws from the inside of the frame.
Garage door window step 4.