Return to

Windows and Doors

Introduction To Window Glazing


You can make your older windows last a little longer with a little window glazing know how. This process for single pane windows can help ensure they stay draft-and leak-free for years to come.

Glass on older windows is usually held in place by glazing compound, but over the years this can get hard, crack, or fall off. If your window has loose or missing compound, you might have a drafty or leaky window on your hands.

For supplies, you`ll need a putty knife, a heat gun, and, if you`re replacing any broken glass, the new glass piece, sized appropriately to fit the window. You`ll also need glazing putty (oil or latex), glazing points, and latex caulk. It`s also advisable to wear gloves and eye protection for this project. To begin, it`s best to remove the single window pane from its mounting in the wall so you can access it from all sides. Lay it on a flat, solid surface like a sturdy table or workbench.

Next, use the putty knife to loosen and remove chunks of glazing compound from the window. For stubborn areas, soften them with the heat gun (with gloves on). Keep the heat gun moving; you`ll crack the glass if you keep it in one spot too long. Scrape away the putty once it is pliable.

Prime the bare wood inside the frame with a shellac-based primer that dries fast. Next, follow the directions on the glazing compound. (Instructions may differ for laying new glass versus glazing existing glass.) Apply a layer to fill in the recesses, not leaving any gaps or hollow spots. Smooth the new glazing compound in place with your putty knife. Remove the excess from the glass.

Read the label on your putty to learn the drying time so you know how long to wait before priming and painting your window.


subscribe to our Blog

Popular blogs

Latest blogs

  • 5 Tips for Effective Maintenance of Your Home Windows

  • How To Take Care Of Windows And Doors In Summer

  • Difference Between UPVC and Aluminium Windows

  • Why are Sliding Doors Better than Normal Doors?


Recommended for you

  • Architecture and Design

    What Is The Best Glass For Warm Climates?

    When it comes to the structure of the house, most people are looking for stuff that can best serve the home and reduces the cost of living. When it comes to windows, there are some ...
  • Architecture and Design

    What Makes Glass Flooring So Appealing?

    There was a time that when it came to flooring options wood or tiles were the most popular. While this still holds true to a large extent, one of the biggest trends to have come into...
  • Architecture and Design

    What Makes UPVC The Perfect Pick For Your Home?

    When it comes to windows and doors in your house, UPVC, also called double-glazing is a great option. While it's not imperative for doors, especially if you do not have any glass...