I would encourage you to get microfiber window cleaning mop and cotton rags for your window cleaning and also have a good squeegee you may find out that the soft rubber is easier to clean windows.
How to clean french door windows.
Cleaning with a commercial spray isn t the best answer for this as it will tend to leave streaks.
Grasp the window grille at its center on the window.
Tip the glass door from side to side and turn it over periodically to make sure the alcohol is reaching all parts of the inside of the glass.
Attach a dental waterpik to a container of glass cleaning alcohol.
Try taking a squeegee and running a little dish washing liquid along about half its length.
Squirt the alcohol through the upper tube to fill the glass void.
There s plenty of glass on exterior french doors and it can become dirty very easily especially in fall or winter.
Use this on the glass.
Put about half a cup of white vinegar in half a bucket of warm water and use a microfiber cloth to wipe them down.
If the grille does not move it is glued and is not removable.
If the grille moves it is removable.
Use a second dry microfiber cloth to wipe them completely dry.
You will want to clean the frame part first.
A good scrub brush or toothbrush and some dish soap will help you quite a bit when it comes to the frame part of the french doors.
Attempt to pull the grille slightly off the glass.
You will need some windex or a mixture of vinegar and water to clean the window parts.