Over time, the paint on sash windows can peel or crack, and the wood may need some care. If you want to freshen them up, repainting your sash windows can be a great DIY project. Let’s walk you through the basic steps.

Step 1: Cleaning and removing old paint

Before anything else, it is important to clean the windows. Use a cloth and soapy water to remove dust, dirt, and any spider webs. Once the surface is dry, carefully scrape off any loose or flaking paint with a paint scraper. If you are doing a full sash window repair, you may also need to remove parts of the old putty and check the wood underneath for damage.

Step 2: Filling in any gaps and repairing damage

Next, look closely for any cracks or holes in the wood. Use wood filler to fill these areas, then sand it down once it dries. This step is really important for any sash window repair, as it helps prevent further damage from moisture or insects.

If the frame is badly damaged or the sash is sticking, it might be time to call in the professionals, such as https://www.sashwindowpreservation.co.uk/services/sash-window-repair/.

Step 3: Priming for longer-lasting protection

After your repairs are done, apply a coat of primer. Primer helps the paint stick better and gives extra protection against the weather. Make sure you choose a primer that is made for exterior wood surfaces and is breathable, especially if your windows are older, to allow moisture to escape and prevent wood rot. Using a microporous or water-based breathable exterior paint helps protect the timber and extends the life of the window. Let it dry fully before moving on. Skipping this step can lead to peeling paint later.

Step 4: Painting for a smooth finish

Now, it is time to paint. Use a small brush to get into the corners and along the edges. Apply the paint in thin, even layers; it is better to do two light coats than one heavy one. Let the paint dry between coats for the best results.