Renovating a Wooden Window



Renovating a wooden window


For this demonstration on renovating a wooden window, we have a small window that’s never seen a coat of paint. Flaking paint, rotting wood and failed seals make it a candidate for replacement. But replacement costs too much, so we’re going to renovate the frame, which is not as bad a job as it looks.

First give it a good scrape with a paint scraper. Then cut out the rotten wood in the corner. Fill the gap with body filler. Have a look at our movie on filling rotten window wood in the window section of this website. Sand the entire frame using a rough sandpaper. We’ve used 100 grit sandpaper and it does the job very efficiently. Use a water based caulk to seal the window edges. Water based caulks are commonly referred to as ‘Painters Mate’ in South Africa. Most brands work quite well.

Some of the window putty has fallen away from the beading. This is quite easy to replace, but there are a lot of interesting tips, so we’ve made a separate movie to cover putty application. Check out our putty application movie in the window section of the DIY Movies website for an interesting look at repairing failed window putty.

Now we’re ready to paint.

Begin with covering all bare wood and sections that have been puttied with a universal undercoat. This will seal the pores of the frame and create a good key for the topcoats to adhere to.

We’re using Plascon’s Wall and All for the topcoats. Wall and All is water based and covers well on most surfaces.

We’re covering the beaded sections of the frame very quickly, allowing the paint to get onto the glass. Once the paint is dry, after an hour or so we’ll use a glass scraper to remove the excess paint. A few quick passes with a glass scraper results in a great edge and the paint has sealed any gaps between the glass and the putty.

This technique is great with water paint and can be used with oil paints, although oil paints take much longer to dry and the paint doesn’t come off the glass as easily as water based does, so you’ll have to finish with a cloth and some turps.

Two coats of paint will give the window protection from the elements for the next ten years.

This job took less than four hours and cost about R150. To buy a new window, have it fitted and have it painted would have cost over R1200, so there’s quite a saving by doing the renovation yourself.

Let us know if you have any good tips or tricks to pass on to our viewers.


Wooden window 2