SASH WINDOW REPAIRS LONDON

Sash windows are old-type windows with movable flat and rectangular parts called sashes for opening them. They are opened by moving the sashes up and down or outwards. The sashes are mostly made of wood. Some of the problems associated with sash windows include wood rotting, bulging, shrinking, and change in form making them immovable or difficult to move. Fortunately, sash windows can be repaired to increase their functionalities.

How to repair sash window

REMOVE THE SASH

• Unscrew the stops (the mouldings in front of the lower sash).
• Remove the lower sash, and take off the cords or chains on both sides.
• Make sure the cords are tied to prevent them from being pulled into the weight pockets.
• Check the vertical strips holding the upper sash and remove them.
• Remove the upper sash before taking off its cords, chains, and hardware.

TAKE THE GLASS OUT

• Use a heat gun set to medium heat to soften hardened putty.
• Scratch the putty away with a putty knife.
• Remove the metal glazier’s points holding the glass in position.

• Remove the glass.

CLEAN THE JOINTS

• If sash joints are loose or exposed, use a rotary tool to grind away the soft or rotten wood.

APPLY EPOXY

To repair the cleaned-out joints.

• Brush epoxy primer on the joints and let it settle for about 20 minutes.
• Using a plastic scraper, mix the two parts of the epoxy filler into a thick mixture.
• Force it into the joint before spreading it over the sides to restore the original shape of the joints.
• Wait overnight before trimming excess epoxy with a utility knife.

PRIME THE SASH

Leave the epoxy to cure and then:


• Use 100-grit sandpaper to sand the sash.
• Use a piece of tack cloth to wipe up excess dust before applying oil-based primer to the wood to seal it.
• Bed the Glass
• Lay the sash on a flat surface with the exterior side facing up.
• Take a long rope and then roll it in a glazing compound before pressing the rope into the grooves on the pane opening.
Gently and evenly, push the pane into the compound.

INSERT THE POINTS

• Slide each new glazier’s point on the glass.
• Screw them into the wood sash. Make sure they are evenly spaced.

TOOL THE PUTTY

• Take a rope dipped in a glazing compound and press it around the edges of the pane.
• Wait at least a week before coating the putty with an oil-based primer.
• Coat the putty and sash with a layer of latex paint.

RE-HANG THE SASH

• Seal the openings on the window if any. Consider replacing the sealing if they have grown old.
• Make sure the hardware is cleaned before reattaching it. In addition, the pulley axles should be well lubricated with Teflon tape or silicone.
• Reattach the cords or chains to the upper sash before reinstalling the parting beads or replacing them with new ones.
• Hook the cords or chains to the lower sash before putting both stops back on the jamb to hold the restored sash in place.