Any DIYers? Window beginning to jam, what should I do?

[colddietcokewithice]

The windows are probably due replacing (20 years old) but not something I can take on. I'm having to pull and bang the handle to get it sliding into place after being opened.

[CatherinedeBourgh]

What are the windows made of?

[colddietcokewithice]

Wood.

[CatherinedeBourgh]

Check whether both the window and the frame are still square. If they are, then it may be the hinges have come a bit loose, check them. Or the window could have swelled up, make sure the paint on the outside is in good shape so the wood doesn't take on water.

[colddietcokewithice]

Thank you. It's shut for tonight so that can be tomorrow's job.