How to Repair and Repaint an Old Window

Wooden windows are great additions to the interior of your home and they give it that warm and glowing interior look that feels satisfying and looks great. Wooden windows are also great against the weather because as every person knows, wood is a great material for insulation, so wooden windows are perfect for keeping in those stray remnants of heat and cold outside of the house and away from slipping in through those small crevices in the window frame like other window types. Having said this, wooden windows have a short life and can get damaged very fast and easily. What you can we say, wood is a great but very fragile and susceptible material and after having been installed for some time, an old wooden window can start looking damaged and weathered, at which point you need to learn how to repair old windows.

Tools and Equipment Needed for Repairing Old Wood Windows
  • A putty knife
  • Some wood clamps
  • An extension cord
  • Sand paper (various grits ranging from 80-220 grit)
  • A saw table
  • A knife for glazing
  • Sander
  • Nailers (finishing and brading)
  • A chisel
  • A Wood Scraper
  • A gallon of glazing compound
  • Window compound

Method and Guide for Repairing Old Windows

Thinking of repairing old wood windows can be a very daunting and scary notion because wood can be so fragile and you have to take many precautions in repairing it properly, which is why these steps and method guide are perfect for anyone who wished to learn how to repair old wood windows. It is important to keep in mind that there are two types of repairing techniques usually utilized when it comes to old window repair.

The first technique deals with the repairs involving glass in an old window, usually this method entails the replacement of old window glass and the installation of new glass into the window frame. The second technique, and the more complex one in repairing old wood windows involves making repairs to the old wooden window frame and the sash of the wooden window.

Window Sash is the component of a wooden window that basically consists of the frame and is the part of the window responsible for holding the window glass together. There are many kinds of window sashes and all have their own particular problems. Since wood is a fragile material, a wooden window sash easily gets damaged with weather conditions. Here’s how you can repair old windows with sash problems:

Step 1 One of the common problems in an old wooden window is rotten wood work which should be removed. To remove old rotten wood work make use of a chisel to pull apart all the damaged rotten wood from the window. After scraping out all the damaged wood, apply wood repair filler paste to the damaged area and let it soak it in.

Step 2 After scraping out all the damaged rotten wood from the wooden window frame sash, let the window repair fluid dry, and when it finishes drying, you can begin to shape and make neat your window frame by using a sand paper to sand away all the excess bits of the putty and make the area leveled and neat on the window sash.

Step 3 Using a putty knife, you can put on vinyl patching compound to the exterior of the wood to give it a proper finish and to seal it in from any outside damage.

Step 4 You can also remove old glazing from your damaged old wooden window by scraping it off. Sometimes glazing on an old window can be a bit stubborn so you have to use a deglazing knife that will use chiseling actions to remove out all the old stubborn glazing from your window.

Step 5 After deglazing your window you can prime the sash and sand it in to make it smoother and more even looking. After doing this you can use filler to fill in any gap spots left behind.

Step 6 The last step in old wooden window repair is repainting old windows. You can apply multiple coats of paint and seal it in with varnish.

Helpful Tip

Use varnish at the base before painting for a smoother paint job.

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