Replacing glass in picture frame

Depends if The Plastic Fairy has a grudge against you or not. She's the one that nips in when your backs turned and scratches the crap out of the picture, makes it go misty, and generally destroys the nice shiny surface.

The Glass Fairy is much kinder and just tends to bust the thing.

You might like to replace the whole frame. Frames are cheaper than having glass cut to size.

You certainly can do - especially to reduce UV fading on older pieces. it generally works well, but it's obviously softer and less scratch resistant.

Thanks both. From those, plus local enquiries this morning, I've decided to replace with glass. The plexiglass is more expensive, and has the shortcomings mentioned. Happily the supplier is going to help me remount on the wall when he delivers it back, so I feel somewhat reassured!