Sash window locks can present numerous problems if the original windows are dilapidated, or had been incorrectly installed in the beginning. They are difficult to open or close, the locks may be loose, or they rattle and let outside air in when the wind picks up. Worn out locks of course present a security problem, too. Whatever heartaches your sash windows give you, consider sash window renovation to bring your home back up to standards. You may be surprised what some simple renovation can do.
A few basic repairs can cure rattles, draughts, sticking windows and rotting framework. If the sash ropes are fraying they should be replaced by uninstalling the sashes. Wax applied to the sash stiles and channels will help ease a window that easily sticks. You may need to replace old pull-cords and oil down the pulleys, and ensure that the beading is working smoothly. You also want to oil the channels after removing peeling paint from them. Look for swells and imperfections in the sash that may interfere with smooth functioning; this may mean a full sash window replacement.
One problem to watch for is wet rot in the sash window locks. Fortunately it can usually be remedied with a good wood hardener. First, remove any loose particles and bits of wood. Next, apply wood hardener with a disposable brush according to product directions. An epoxy filler may be needed before priming and refinishing the surface. An easy way to stop rattling windows is to install catches to hold the two sashes tightly closed. If a draught is also present, you may need to replace the beading with a special kind made to seal air leaks. Don’t forget to replace rickety locks during your sash window renovation to ensure security. With these minor fixes you can enjoy your sash windows indefinitely.