We have a flat in a purpose-built block. A couple of years ago, the freeholders fitted uPVC double glazed windows and doors. Since then we have been having trouble with the balcony door sticking. We've had no joy from the managing agents to get this fixed. I suspect that the installers omitted packing pieces and the frame has dropped.
Am I likely to break anything if I remove some frame inserts to check for packing pieces?
Am I likely to break anything if I remove some frame inserts to check for packing pieces?