Sash window fastenings are a critical component to the sash window’s functioning and a loose fastening can cause problems such as draughts, rattling and the window not closing properly.
Why Fastenings Work Loose
There is an inevitable wear and tear as the timber expands and contracts with the seasons, with screw threads getting worn and the frame moving slightly. The meeting rail of the sash can also develop a heavy coat of paint, meaning that even where the fastener fitting is sound, it cannot engage with the frame properly due to the build-up of paint on the sash meeting rail.
Diagnosing the Real Problem
The Sash Window Repairer will assess whether the fastener has been worn or if the frame has moved. It is unlikely that a simple repair of the fastener will solve the problem as the meeting rails will not be in alignment. The alignment of the meeting rails needs to be corrected first.
Correcting Meeting-Rail Alignment
Re-planing back to original width and adjusting the parting bead to ensure correct alignment of the meeting rails will allow the catch seats to engage correctly. A simple solution with immediate results.
Replacing or Refurbishing the Hardware
When it comes to period properties in Kensington it is often desirable to preserve the original fitch fasteners. A sash window repairer will be able to refurbish existing hardware or supply like-for-like products. They must ensure that their technical approach to repair of sash windows is suitable for the historic building and fitting.
More on Sash Window Repair Kensington can be found at https://www.sashwindowpreservation.co.uk/services/sash-window-repair/london/kensington/.
Closing the Gap That Lets In Rattles
A fastener that pulls the meeting rails together will also close the gap between them and stop any rattling.
Simple fastenings repairs to make old sash windows to feel solid and weather-tight again.