Refurbishing Sash Windows: A Step-by-Step Guide to Renewing Your Old Windows by Replacing Sections and Painting
Sash windows are great feature in many homes, especially Victorian and Edwardian properties.
However, over time, and due to weather issues these windows will need maintenance as time goes on.
As sash windows are timber, once the paint system breaks down this can lead to rotting. This makes them less effective at keeping the cold out and the warmth in.
Replacing sash windows can be a costly and time consuming process, but refurbishing them can be an effective alternative.
In this article, we will outline the steps required to refurbish sash windows and bring them back to life.
Step 1: Remove and Treat Any Rot
Before beginning any refurbishment work, it is essential to remove any rot and treat the affected area.
This can be achieved by using a sharp chisel or a rotary tool to carefully remove the damaged wood.
The area should then be treated with a fungicidal solution or wood hardener to prevent any further growth.
After treating the rot, it is important to allow the area to dry out completely before moving on to the next step.
Step 2: Replace Rotten Sections of the Windows with Timber
If the rot has caused significant damage to the window frame, it may be necessary to replace the affected area with new timber.
Carefully measure the area to be replaced and source a piece of matching timber of the same species and size.
Cut the new timber to size and shape it to match the original profile of the window frame. Once the new timber is fitted, secure it in place using a suitable adhesive or mechanical fixings.
Step 3: Use Epoxy Resin for Repair
Epoxy resin is a highly effective material for repairing damaged or rotting wood. My preferred brand is Timbabuild
It is easy to work with, can be shaped to match the original profile of the window frame, and is long-lasting.
To use epoxy resin for repair, begin by mixing the 2 pack resin together according to the manufacturer’s instructions.
Apply the resin to the damaged area, working it into any cracks or gaps, and shape it to match the original profile of the window frame. Once the resin has cured, sand it down to create a smooth finish.
Once you have sanded the area that has been treated with epoxy resin, finish off the filling with 2 pack wood filler
Step 4: Paint the Windows
Once the refurbishment work is complete, it is essential to protect the newly repaired sash windows with a coat of paint.
Choose a high-quality exterior paint that is suitable for use on wood and has good weather resistance. Begin by applying a primer coat just to any bare areas of the timber.
On external work I like to use the Dulux Weathershield System. Apply the undercoat and then the gloss. Check out this article relating to painting sash windows
Take care to paint each section of the window frame carefully, avoiding any drips or runs. Allow each coat to dry completely before applying the next.
By following these steps, you can refurbish your old sash windows and make them look as good as new.
Refurbishing sash windows has many benefits, including:
- Cost Savings: Refurbishing sash windows is significantly cheaper than replacing them entirely, which can be a costly process.
- Energy Efficiency: Refurbishing sash windows can help to improve the energy efficiency of your home, reducing heating bills and carbon emissions.
- Preservation: Refurbishing sash windows can help to preserve the architectural heritage of your property, especially if you live in a period property.
- Durability: Refurbishing sash windows can make them more durable, increasing their lifespan and reducing the need for future repairs.