Repairing Glazing Old Windows

Paint the exposed wood with either a primer or use an epoxy consolidant.

Repairing glazing old windows. 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. Sand primed surfaces if needed. If the bottom edge of the lower sash s.

Scrape the putty away with a putty knife. If you used the epoxy consolidant to coat your window sand it to remove the gloss and then paint with a good acrylic. It is linseed oil based and as close to the old stuff they used to use. Average time to do the above work is one hour per six pane window.

Sand wood surfaces if needed. Sand and scrape to reach the original wood. Repair a wood window in 12 steps. If you are glazing your windows in a garage or shop use sarco type m putty.

The epoxy will soak into the wood and make it harder than original as well as waterproof. Pull out the old glazing points with pliers. This exposes the metal glazier s points. The sharp tip of a paint scraper can be used to carefully remove the points without damaging the glass.

The points are covered by glazing compound. Soften old hardened putty glazing compound with a heat gun set to medium and fitted with a nozzle shield. This step may not be needed if all wood surfaces are perfectly sound. Remove the glass and label it so you know which opening to put it back into.

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. Pry them out of the wood. 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. If your windows will be glazed outside and exposed to the elements prior to painting use sarco dual glaze.

With the glass thoroughly broken up pull the shards out of the frame by hand. 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. It is important that in painting the glazing the paint flows onto a small part of the glass to make a weather tight seal. The glass should be cleaned so that all of the putty oils are removed.