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Your guide to maintaining timber casement windows and timber sash windows

Timber windows have long been cherished for their natural beauty, durability, and the traditional charm they bring to homes. Whether you have elegant timber casement windows or classic timber sash windows, these features can add significant value and appeal to your property –providing they’re kept in prime condition. In this comprehensive guide, Nine Zero shares some tips for maintaining your wood casement windows and wooden sash windows to ensure they continue to be the best timber windows for energy efficiency and add appeal to your home for years to come.

Routine cleaning and inspection

One of the simplest yet most effective maintenance tasks for energy-efficient timber windows is regular cleaning. Dust, dirt, and grime can accumulate on the surfaces of your timber windows, leading to discolouration and potentially causing the wood to deteriorate over time.

  1. Cleaning: Use a soft cloth or sponge with mild soapy water to clean the window frames. Avoid harsh chemicals or abrasive cleaners, as these can damage the wood. Pay particular attention to the corners and edges, where dirt tends to build up. After cleaning, rinse with clean water and dry the frames thoroughly to prevent moisture from seeping into the wood.
  2. Inspection: While cleaning, take the opportunity to inspect your timber casement and timber sash windows for any signs of damage. Look for cracks, peeling paint, or areas where the wood feels soft or spongy, as these can indicate the early stages of rot. Regular inspections allow you to catch and address issues before they become more serious problems.

Protecting against moisture and rot

Moisture is one of the biggest threats to timber windows, as it can lead to rot and compromise the structural integrity of the wood. Protecting your windows from moisture is key to extending their lifespan.

  1. Repainting and revarnishing: Over time, the paint or varnish on your timber windows can wear away, leaving the wood exposed to the elements. At Nine Zero we are proud to offer a 10-year guarantee on paint and finishes, which we can create in any RAL colour, F&B or other popular paint shade. When it is time to refresh your timber windows and doors, choose a high-quality, weather-resistant paint or varnish, and ensure that the wood is clean and dry before applying. This protective coating acts as a barrier, shielding the timber from moisture and UV damage.
  2. Sealing gaps: Check for gaps or cracks in the window frames and seals, as these can allow moisture to penetrate the wood. Use a suitable wood filler to seal any small gaps and ensure the sealant around the glass is intact. For larger cracks or damaged areas, consider consulting a professional for repairs.

Lubricating moving parts

Both timber casement windows and timber sash windows rely on moving parts to function smoothly. Over time, these parts can become stiff or stuck due to a buildup of dirt, or lack of lubrication.

  1. Hinges and locks: Regularly check the hinges and locks on your timber casement windows for signs of wear. Apply a light oil or specialist lubricant to keep them moving freely and prevent rust. Be sure to wipe away any excess oil to avoid attracting dirt.
  2. Sash window mechanisms: For timber sash windows, the pulley systems and weights are crucial for smooth operation. These should be inspected periodically to ensure they are working correctly. If the sash windows are sticking or difficult to move, a professional may need to adjust the cords or replace any worn-out parts.

Dealing with condensation

Condensation can be a common issue with timber windows, particularly in older homes or during the winter months. Excess moisture from condensation can lead to mould growth and damage to the wood.

  1. Ventilation: Ensure your home is well-ventilated to reduce the risk of condensation forming on your windows. This can be achieved by using extractor fans, opening windows regularly, and ensuring that air can circulate freely around the window area.
  2. Draught-proofing: Installing draught excluders can help to keep warm air inside your home while reducing the amount of condensation that forms on cold window surfaces. This also improves the energy efficiency of your home, making it more comfortable during colder months.

Need more advice on maintaining timber? Get in touch with your expert Nine Zero team.