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How to Clean Sash Windows

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Table of Content
July 20, 2023

Sash windows are known for their enduring charm and classic allure. They have been popular since the 17th century and continue to grace countless homes today.

Undoubtedly, these windows can add a touch of sophistication and beauty to any architectural design. However, with their intricate structure and delicate panes, cleaning sash windows can be more difficult when compared to standard windows.

Wondering how to clean sash windows? With the right techniques, tools, and a little patience, you might be able to bring out their sparkle on your own. Here, we will delve into the step-by-step cleaning process of sash windows, both from the inside and outside. So, if you are ready to embark on this task on your own, this blog post might be your ultimate resource.

But before rolling up your sleeves, it is crucial to understand that cleaning sash windows can often be a challenging DIY project, especially when dealing with windows on higher floors or hard-to-reach areas. Such a situation may pose safety risks to non-professionals attempting to handle the task. Entrusting this responsibility to professional cleaners can be the wisest decision. They not only ensure optimal results but also minimizes potential risks.

Moreover, these professional cleaners often provide end of tenancy cleaning services, ensuring that even the most overlooked areas of your property are spotless and ready for the next occupants

Cleaning sash windows - Where to start?

man cleaning a sash window in home

First and foremost, you should take the necessary safety precautions. If the windows are located on a higher floor or hard-to-reach area, you will need to be particularly careful and equipped with the right tools. Also, sash windows often consist of two movable panels that slide vertically, and they require careful handling during cleaning. Here, we outline essential safety precautions and provide a list of the necessary tools and supplies required to tackle this task effectively.

Safety first

  • Wear safety glasses or goggles. They will keep any splashes of derbies away from your eyes.
  • Use gloves. You don't want to touch dirt or chemical cleaners with bare hands.
  • Use a stable ladder or extension pole. These are must-have items when you need to deal with high windows. Do not even think about stepping on a chair or stool because it may be dangerous.

Tools and cleaning supplies

In order to successfully clean your sash windows you will need to gather the following tools and supplies:

  • Dishwasher liquid and glass cleaner
  • Microfibre cloth or lint-free cloths
  • Ladder or extension pole (if needed)
  • Vacuum cleaner with a brush attachment (optional)
  • Bucket.

How to clean the inside and outside of original timber sash windows?

When taking care of your traditional timber sashes you need to be particularly careful and use gentle techniques in order to prevent damaging their wooden frames. Here, we will provide you with a step-by-step guide on how to clean sash windows with timbers.

  • Prepare your cleaning solution and tools. Gather all the materials and tools listed above. Get the bucket and prepare a solution of a dishwashing liquid mixed with water. You will need this to address the exterior of your timber sash windows. This gentle yet effective solution will bring out the sparkle in your timber sash windows. For the interior timber surfaces you can simply use a glass cleaner.
  • Open the windows. If you have traditional sliding sash windows that can be opened then raise the bottom sash and lower the top sash so that you have easy access to both sides of the window. Exercise extra caution when dealing with heavy timber structures. To ensure safety, consider using a prop to prevent the window from unexpectedly closing.
  • Remove loose dust and dirt from the timber frame, sashes and tracks. For this purpose, you can use a vacuum cleaner with a brush attachment. Just make sure to be gentle to avoid scratching or causing any damage to your timber sash windows.
  • Clean the upper half of the outer sash. Get a microfiber cloth and soak it with the pre-prepared cleaning mixture. Then fully lower both sashes and begin cleaning the top half of the outer glass.
  • Clean the top half of the inner sash. Lower the top sash to its limit and lift the bottom sash halfway up. Now, you can proceed to clean the inner sash. Tackling it with a glass cleaner and a microfiber cloth will be enough. Due to less exposure to external elements, the inside surfaces tend to accumulate less dirt compared to the outside.
  • Clean the lower half of the outer glass. Lift both sashes completely and start cleaning the lower half of the outer surface by using the wet soapy cloth.
  • Take care of the bottom half of the inside window. Place the inner sash halfway down and take care of the bottom half's cleanliness using a glass cleaner and microfiber cloth.
  • Don't forget to address the timber frames as well. A damp, soapy cloth works wonders in eliminating dirt from the wood, but always remember to thoroughly dry the surfaces afterwards. This will not only enhance the overall appearance but also prevent any lingering moisture-related issues.

Consistency is key - the more frequently you undertake this cleaning routine, the easier and more rewarding the process becomes.

How to clean the inside and outside of uPVC sash windows?

Cleaning uPVC sash windows is usually a more straightforward process. They offer the convenience of an easy tilt feature, making maintenance easier compared to wooden sash windows. If you want to achieve sparkling uPVC sliding sash windows just follow the steps below.

  • Eliminate accumulated dust. Use a vacuum cleaner to get rid of dust from the hinges, handles, and other areas of the windows.
  • Clean the inner sash surfaces. Use a glass cleaner and a micro fibre cloth to give a pristine cleaning of the interior glass.
  • Take care of the outer face of the windows. Tilt the sashes inwards and cleanse the exterior glass with a gentle cloth and a mild soapy water solution.
  • Wash the frames. Dip the soft cloth into the cleaning solution, wring out excess water, and then gently wipe down the uPVC frames. Pay particular attention to spots prone to grime accumulation.

Make sure to perform regular cleaning of your uPVC sash windows to prevent dirt and grime buildup and to keep them looking their best.

Benefits of hiring professional window cleaner

man cleaning outside of sash window

Hiring professional cleaning services for your sash windows comes with a number of advantages. Before anything else, the specialist can do the job safely. They have the necessary equipment and safety gear to reach windows located on higher floors. Additionally, they are able to accomplish the cleaning in half the time it would take you, sparing you the hassle and effort. Furthermore, their expertise ensures a superior level of cleanliness and shine.

Although hiring a professional window cleaner incurs a cost, it proves to be cost-effective in the long run. The proper maintenance and cleaning they provide can significantly extend the life of your windows, reducing the need for premature replacements or repairs.

Frequently asked questions

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