If they are painted shut you can score them with a utility knife and then attempt to open them.
How to clean glass sliding doors.
Use a miniature vacuum to remove any of these loose materials.
Use a dry cloth to wipe off any dust at the top of the frame.
I ve used this many times and it works greats.
Wipe down the entire frame with a damp cloth.
Attach a dental waterpik to a container of glass cleaning alcohol.
Be sure to clean the tracks on both sides of the door.
Dry thoroughly and apply a thin layer of lubricant oil or spray lubricant to the track.
Spray lubricant into the hole on the edge of the door.
Squirt the alcohol through the upper tube to fill the glass void.
Your sliding glass will probably have a hole on the side.
For routine cleaning use a broom to sweep the area around the exterior of your door.
It also helps to lubricate the tracks to your sliding doors every few months.
Look for the hole in the door over the tracks or on the inside of the door.
According to marvin windows and doors a leading supplier of glass windows and doors soaking the entire surface with soapy.
Vacuum both the top and bottom of the sliding glass door as well as the tracks.
Once open sand the sides best you can for easy opening.
The brush will loosen stubborn dirt deposits which you can then vacuum.
Use a rough damp cloth or scouring pad to clean the door frame bottom and threshold which are likely to be ingrained with dirt due to frequent traffic.
Wipe the frame around the glass and edges of the sliding door using a damp cloth.
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.
Wet the entire surface using a clean rag saturated with water and soap.
Clean the track to your sliding door every few months with a wire brush.
Spray the door and leave wait three minutes.
Wipe clean with a microfiber cloth and buff any streaks with a clean dry cloth.
Place the straw attached to the lubricant into the hole and press the trigger.
Bits of leaves bark gravel and sand are just some of the things that can get into your door s track and prevent it from gracefully sliding.
Ammonia can help make a streak free finish for glass after the shower doors are clean.