From Edwardian, Georgian and Victorian homes through to modern properties and new builds, sash windows can add a wow factor to almost any property.
Knowing the right way to clean and the right tools and products to use, will help to keep your sash windows and your property looking their best.
It will also provide you with an opportunity to carry out regular maintenance checks to ensure your sash windows are well looked after, are safe to use, and operate smoothly as intended.
Cleaning sash windows isn’t complicated, but there are definite steps to follow to ensure it is done correctly and thoroughly. You should aim to undertake a deep clean of your sash windows once every six months.
To help you, we’ve put together this comprehensive guide on how to clean sash windows from the inside of your property so you can rest assured they are being cleaned correctly to keep them in tip-top condition.
Preparation and safety
Fail to prepare, prepare to fail. If a job is worth doing (and let’s face it, keeping your sash windows clean and well maintained definitely is) then preparation is vital.
Firstly you’ll need to ensure you are working in a safe environment. The area around the window must be clutter-free and accessible before you get started – to avoid any trips or falls.
You’ll need appropriate clothing (particularly non-slip footwear) and it’s a good idea to have protective gloves and eyewear to hand, just in case.
Finally, you should ensure you keep both feet planted when cleaning your sash windows. It might be tempting to balance on a stool or lean across, but this can easily lead to a fall. If you need to use a ladder ensure it is positioned correctly and safely, and if possible have someone there to hold it steady for you.
Checklist
You’ll need the following items to clean your sash windows properly:
- Mild, colour-free detergent in warm water
- Sponge
- Squeegee or soft, non-abrasive microfibre cloths/chamois
- Glass cleaner
- Silicone-based spray and soft-bristled brush (if you have brush seals)
- Silicone-based lubricant (for the hardware)
Products to avoid
You must avoid harsh cleaning products such as bleach, strong detergents, solvents, abrasive cleaners, scourers or metal scrapers, or hosepipes. These products and tools can damage your sash windows and may leave you needing repairs in the future.
Inspect your sash windows
Whilst cleaning your sash windows it’s the perfect time to inspect them for any signs of damage or wear. Be sure to look around the frames, windows and hardware to check that everything looks to be in top condition. If you do spot any issues such as cracks or chips, it’s best to consult with an expert to avoid any long-term damage. Taking action to remedy any problems immediately could also help you avoid a hefty repair bill further down the line.
Cleaning the outer panes
Glass should be rinsed off with warm water and a sponge or soft cloth to remove grit and other particles.
Then use your warm soapy water and sponge to clean the glass and the frame. You’ll need to replace your water regularly to avoid a build-up of abrasive grit and grime, and ensure cleaning cloths are free from grit and debris to avoid scratching the surfaces.
Remove excess water with the squeegee or dry soft cloth/ chamois. This is an important step, not only for a streak-free finish, but also to avoid any excess moisture or residue around the frame. Do not leave the windows to dry naturally as in some areas water contains minerals and salts which can form deposits on the glass over time.
Cleaning the inner panes
As the inner panes are not subject to the elements, you won’t see the same build-up of dirt and grime as you would on the outer panes.
A glass cleaner and a microfibre cloth should be sufficient for the inside.
Cleaning the hardware
Check all hardware regularly, to ensure that each item works properly, and replace any damaged or worn down components before they affect the smooth operation of the window/door and other component parts.
You can clean your hinges, locks and handles with a clean, damp soft cloth. Avoid abrasive cleaners, scourers and metal scrapers – these will damage the protective coating and lead to corrosion and tarnishing.
Every 6 months or so lubricate all moving parts of the hinges, latch/locking systems, pulley wheels etc using a silicone-based lubricant. Any lubricant accidentally spilt on other parts of the window should be removed immediately.
Cleaning the seals
OK it might not affect the aesthetics of your sash windows, but whilst you’re there and you’re prepared for cleaning, it’s worth taking a look at your seals!
Compression seals should be cleaned every six months with a microfibre cloth and mild detergent in warm water to remove any contaminants, dirt and build-up of traffic film.
Brush seals can be cleaned from time-to-time with a soft-bristled brush and sprayed every 6 months or so with a silicone-based spray to keep them soft and lubricated.
How often should I clean my sash windows?
The above guide talks you through a deep clean of your sash windows, but you won’t need to do it all every time. We would recommend the following schedule:
- Monthly: Wash the glass and frames
- Half-yearly: Inspect for damage or problems and clean entire window including seals
Once your sash windows are cleaned and you can see yourself in the reflection, you’ll see it’s a worthwhile investment of your time to keep your property looking spick and span!
Remember to avoid any cleaning harsh products (chemicals or tools), and to wipe down all surfaces with a dry soft cloth afterwards to avoid unnecessary build-up of moisture.
If you’ve followed the above guide, you’re well on your way to keeping your sash windows in top condition, looking super clean and operating smoothly.
At Timbawood, we specialise in replacing and repairing traditional sash windows for both heritage and new build homes. Our timber sash windows can be designed to suit any type of property, from modern to historical, including Listed and Conservation areas. We offer full sash window replacements, new sashes for existing frames and refurbishment services to preserve the original design.
