5 easy steps to a new windowpane

Use a putty knife and a hammer to scrape out the old putty, then pull out the glazier’s points or nails with pliers.

Carefully remove the pane of glass.

TIP: Remove the sash to work on a flat surface without obstruction.

Use timber filler to repair any gaps or damaged areas on the window frame.

Allow to dry, then sand flush with the timber.

Paint the filled sections and any unfinished timber with primer, sealer and undercoat.

Apply putty in the channel around the opening using a putty knife.

Carefully position the new pane in the channel, pressing it firmly against the putty to form an even layer of filler underneath the edges of the glass.

Use a stiff putty knife or screwdriver to press glazier’s points or nails into the frame and against the glass, using at least two a side and spacing them about 100mm apart.

Scrape away excess product with the putty knife.

Apply putty over the edges of the glass using a putty knife held at an angle and working from the corners to ensure it is not visible from inside.

Allow to cure for at least a week before painting the timber frames.