Repairing Glazing Old Windows

Remove the glass and label it so you know which opening to put it back into.

Repairing glazing old windows.

Strip the old glazing and paint as required to remove the old glazing points small pieces of metal placed every six inches or so in the frame to hold the glass firmly to the sash. Sand wood surfaces if needed. If the glazing is still in place and looks good for part of the window it can stay but it s best to completely remove any glazing that looks chipped or loose because it can prevent the new glazing from adhering as it should. The points are covered by glazing compound.

If you are glazing your windows in a garage or shop use sarco type m putty. Scrape the putty away with a putty knife. A primer is not needed. Sarco glazing putty this is the only brand of glazing putty i recommend.

If the old glass is in good shape leave it in place. Put on heavy gloves and eye protection place a cloth over the broken pane and tap it with a hammer. With the glass thoroughly broken up pull the shards out of the frame by hand. Once the old glazing is removed as well as the glass scrape the mullions with the triangular scraper to remove any glazing or old paint.

Repair a wood window in 12 steps. Soften old hardened putty glazing compound with a heat gun set to medium and fitted with a nozzle shield. Sand and scrape to reach the original wood. Paint the exposed wood with either a primer or use an epoxy consolidant.

When glazing a window one of the first things you ll need to do is remove any old glazing that s chipped or damaged. This exposes the metal glazier s points. It is linseed oil based and as close to the old stuff they used to use. Pry them out of the wood.

The glass should be cleaned so that all of the putty oils are removed. If the bottom edge of the lower sash s. Sand primed surfaces if needed. If you used the epoxy consolidant to coat your window sand it to remove the gloss and then paint with a good acrylic.

This step may not be needed if all wood surfaces are perfectly sound. Pull out the old glazing points with pliers. If your windows will be glazed outside and exposed to the elements prior to painting use sarco dual glaze. It is important that in painting the glazing the paint flows onto a small part of the glass to make a weather tight seal.