How To Properly Clean & Maintain Timber Sash Windows
21 October 2024
A classic feature of homes since the 17th century, timber sash windows offer style, elegance and functionality to both modern and period properties. However, to keep them looking their best, they need to be regularly maintained and cleaned.
Without proper maintenance, timber becomes worn which can cause issues like rotting, which then causes the sashes to become stiff or let in draughts. Cleaning your sash windows can seem like a big job, but there are plenty of techniques that make the job easier.
Don’t be put off timber sash windows by the need for maintenance! Choosing wooden windows is still an excellent choice. At Todi & Boys, all of our wooden sash windows are crafted from high-quality timber and come with a guarantee.
This means you’re getting the classic effect of wood while also getting long lasting beauty and performance. Keep reading our blog to learn why cleaning sash windows is important, how to clean sash windows, how to maintain timber frames and more.
Why is Cleaning and Maintenance Important for Timber Sash Windows?
Over time sash windows can become grimy and dusty, if neglected, this can build up and stop the window from operating and looking as it should.
How does Proper Care Extend the Life of Sash Windows
Timber is a natural material, unlike man-made plastics such as uPVC, it changes state over long periods of time. By cleaning your sash windows regularly and addressing any issues as soon as they occur, you will prevent more major problems like wood rot from occurring. This extends the lifespan of your sash windows and helps them open and close easily.
Preventing Issues Such as Rotting, Damaged Paint and Draughts
Failing to look after your sash windows can lead to wood rot, damaged or flaky paintwork, draughts and poor sound insulation. The moisture within dirt can get into the wooden frame which over time will weaken the structure. Also, paint can start to peel which will expose the wood to moisture and accelerate damage. Proper maintenance like cleaning and painting when needed will stop all of this from happening. Don’t worry, we’re going to teach you how you can avoid all of these things!
How to Clean Sash Windows
Cleaning sash windows can be difficult because of their unique design, but with the correct process it’s super easy to keep them looking clean. Here’s a step-by-step guide along with some tool and product recommendations:
Step-by-Step Guide to Cleaning Sash Windows
- Prepping the Area
Before cleaning, lay down some dust sheets to minimise the amount of cleaning up you need to do after. Move any furniture out of the way and cover window sills and the floor to stop drips. Also open the window so you can access both panes of glass.
- Clean the Inside First
Start by cleaning the inside of your sash windows. Use a soft cloth or sponge and wipe down the frame and window sills to remove any dust. For the glass, spray on a window cleaner such as Method and wipe it down in circular motions to avoid creating any streaks. Make sure to get into all of the corners and edges.
- Clean the Outside of Sash Windows
For the exterior, it can be challenging to reach certain areas, but sash windows are designed to make this easy. For higher windows you may need to use a ladder or a long cleaning tool such as a telescopic brush. Repeat the same cleaning process with glass cleaner for the outside panes. Be cautious when cleaning from the outside to ensure safety.
- Clean the Timber Frames
After cleaning the glass, lightly scrub the wooden frames with a soft brush and soapy water. Make sure not to use any harsh chemicals that could damage the timber. After cleaning, wipe the frame dry to stop any moisture from getting into the wood.
- Clean the Tracks and Moving Parts
The tracks and pulleys are what make the window function smoothly. When they gather dust over time, it can affect the performance of the window. Use a hoover to clear any dirt or dust from the tracks when wipe them down with a damp cloth, drying them after.
Recommended Cleaning Tools and Products
- Microfibre Cloths: These are great for cleaning windows as they attract dust, are absorbent and don’t leave any streaks.
- Soft Brushes: These are perfect for scrubbing timber frames and getting in any nooks and crannies.
- Window Cleaning Solution: Use a specialised product such as Method.
- Wood Cleaner: For the timber frames, use a mix of soapy water.
Maintaining Timber Frames
Timber can be affected by weather over time, so it’s really important to protect it. Here are our favourite ways to maintain timber frames to protect against rot and damage:
Repainting Timber Frames
Over time the paint on timber windows can fade or crack due to its constant exposure to the sun or rain. Repainting helps to protect the wood and maintain its appearance.
- Inspect the Paintwork: Check your frames regularly for any signs of peeling, cracking or faded, yellowing paint. It’s essential to address these issues before the wood underneath gets exposed to moisture.
- Sand and Prime: Lightly sand down the frames to remove any loose paint and create a smooth surface. Then, apply a primer that’s made for exterior wood to ensure the new paint sticks properly.
- Use a High-Quality Paint: It’s important to use a paint that’s specifically designed for exterior timber windows, as these are made to withstand weather conditions. Choose a weather-resistant and durable paint that will protect the wood from moisture, sunlight and changes in temperature.
A new coat of paint not only improves the appearance of your sash windows but also acts as a protective barrier against the weather.
Applying Protective Coatings to Prevent Rot and Damage
As well as paint, applying a protective coating to the timber is very important for long-term preservation, especially in areas prone to damp or harsh weather.
- Use a Wood Preservative: To protect wood from rotting, apply a wood preservative like Ronseal. This penetrates the timber, protecting it from moisture.
- Seal Gaps and Joints: Inspect all of the joints, edges and any points where the wood meets the glass. Use an exterior sealant to fill in any cracks. This prevents water from seeping into the wood.
- Varnish or Wax: If you prefer a natural wood look, rather than painting, apply a clear varnish or wax finish. Varnish offers a protective layer while showcasing the wood’s natural beauty. For extra protection, especially in exposed areas, opt for UV-resistant varnish.
Lubricating and Balancing the Sashes for Smooth Operation
To keep your timber sash windows operating smoothly, regular lubrication and balancing are essential. Over long periods of time, the sash cords and pulleys that make the window open and close can wear out, making the sashes stiff or in the worst case permanently stuck. Lubricating these parts can prevent friction and make easy-to-operate windows.
As well as lubrication, balancing checks are crucial. When the sashes become unbalanced, they may stick or fail to stay open. You need to inspect the balance system and ensure that the weights are correctly aligned. Address these issues early to ensure the windows stay in top condition for years to come.
Mistakes to Avoid When Cleaning Sash Windows
When cleaning timber sash windows, it’s important to avoid these common mistakes that could damage the wood or glass. One of the most frequent errors is using harsh chemicals or excessive water, both of which can cause significant damage to the timber. Instead, use mild cleaners specifically designed for wood and apply only as much moisture as necessary to avoid soaking the timber and causing rot.
Another common mistake is using abrasive cleaning tools on the glass or frames. Harsh scrubbing can scratch the glass and cause paint to peel or flake, which impacts the window’s appearance and also exposes the wood to moisture damage. Use soft cloths or sponges and gentle cleaning motions to preserve the paintwork and the glass.
Professional vs. DIY Window Cleaning
When it comes to cleaning timber sash windows, homeowners often wonder whether it’s better to handle it themselves or hire professionals. DIY cleaning is an excellent option for regular maintenance, especially if you have easy access to both the interior and exterior of your windows. With the right tools and techniques, you can effectively clean and maintain your windows without professional help.
However, for larger properties or homes with hard-to-reach windows, hiring professional cleaners may be worth the investment. Professionals have the expertise, equipment, and access to specialised cleaning products to handle more complex maintenance tasks. If your windows need deep cleaning, repair, or extensive maintenance, calling in experts can save time and prevent costly damage. At Todi & Boys, we always recommend weighing your needs carefully to decide the best approach for your home.
Proper cleaning and maintenance of timber sash windows are essential for preserving their natural beauty and ensuring smooth, long-term operation. Regular care, including cleaning, lubricating, and balancing the sashes, will help extend the lifespan of your windows and prevent common issues like sticking, wood rot, or paint peeling. Whether you choose DIY cleaning or hire professionals, the effort you invest in maintaining your sash windows will keep them in excellent condition for years to come.
At Todi & Boys, we pride ourselves on crafting high-quality timber sash windows that not only offer timeless aesthetic appeal but are also built to last. Our expert team is always on hand to provide guidance on maintaining your windows, ensuring they retain their charm and functionality. If you ever need advice or professional assistance with your sash windows, we’re here to help—offering top-tier craftsmanship and exceptional service.
Check out our expertise page, how to maintain timber windows and doors, for more information.