An aging sash window is not a cause for despair.

Most original box sashes were constructed so well in the first place that they can be brought back to life from even the direst of situations. Only rarely is total replacement the only option. With a bit of careful renovation those old windows can be made to look as good as new – and much of the work is within the ability of anyone with average DIY skills.

Asses the Condition of the Window

The first step is to assess the condition of the windows. If they open and close fairly easily and there are no large areas of rotten wood the chances are it will not be a complicated job. If, however, the windows are screwed or painted shut, can only be opened with great difficulty or show signs of extensive rot the job may well require removal of the windows to carry out repairs. This is a more complicated task which can call for advanced carpentry skills and specialized tools. Anyone not equipped with these is best advised to leave it to the experts like Repair A Sash.

Repairing the Window

Assuming that the windows do not require professional help, the first step is to run a blade or putty knife between the windows and frames to remove old paint and dirt and make the windows run more smoothly. Next prepare surfaces by rubbing down the woodwork to remove flaking paint. Replace any missing or loose glazing putty (the new putty will have to harden for about two weeks before it can be painted).

Now raise the bottom window as far as it will go and lower the top one. First paint the raised bottom window, starting with the mullions and finishing with the frame. Next paint the sash channel at the top of the frame, followed by as much of the lowered top window as you can reach. Then paint all exposed internal faces of the sash channels the windows run in.

When the paint has dried move the windows to their normal position, stopping about half an inch from the top and bottom of the frame. Finish painting the mullions on the top window; then paint the frame and the top edge of the bottom sash. Finally paint any exposed areas of the sash channels and the casing that surrounds the window.

Repeat this whole process on the other side of the windows. When painting try not to overload the paint brush – most of the window components do not need much to cover them and any excess paint between frame and window will lead to sticking. Wait a few days for the paint to dry thoroughly and then use a silicone spray to lubricate the vertical running edges.

To finish the project think about replacing the blinds or curtains that cover the window, which may suddenly look tired and old beside the crisp new paint job. All that work deserves the finishing touch of a sleek new modern blind from Velux Blinds Direct to truly make those sash windows look as good as new again.