There are many reasons why a window won't close and just as many ways to fix them. If you cannot determine why your window won't close you will need to call a professional.
Are there springs involved? Have you checked the metal pieces aka window tracks at the sides of your windows? Are those glides straight? are they clean? Did you try a lubebrcant? Is there a latch on the windows to lock them together? Metals are more reactive to weather than wood. Are you in a cold climate or warm one?
hiw Do you adjust the bifold doors so they will stay in the track and also so the bifold on each door will stay flat when shut instead of popping open a bit?
There are many reasons why a window won't close and just as many ways to fix them. If you cannot determine why your window won't close you will need to call a professional.
Metal frames or wooden?
Are there springs involved? Have you checked the metal pieces aka window tracks at the sides of your windows? Are those glides straight? are they clean? Did you try a lubebrcant? Is there a latch on the windows to lock them together? Metals are more reactive to weather than wood. Are you in a cold climate or warm one?
Have you checked you tube videos on windows? ..
Have you seen the dummies web site how to unstick a stuck window?
Did you try a lubricant on the rails?