Commercial Window Cleaning: Our 6 Top Tips to Leave Your Windows Spotless


Maintaining clean and spotless windows is essential for keeping your commercial property in top condition. Studies1 have shown that dirty windows can reduce natural light in a building by around 40%. Neglecting your windows can also lead to a build-up of grime, dust, and mould, which can negatively affect the health of your employees and result in increased staff absences. 

In addition to health concerns, your commercial property’s windows are the first thing visitors see when they arrive, making a positive impression crucial. In this blog, we will share our top six tips to help you achieve spotless windows for your commercial space. These tips address common window cleaning challenges, such as removing stubborn fingerprints and grease, tackling sticky tape residue, and eliminating food particles and general dust. By following these tried-and-tested techniques, your windows will not only look immaculate but also contribute to a healthier and more inviting environment for your employees and visitors. 

Do not underestimate the impact of clean windows on creating a positive image for your business. Allow us to guide you through our techniques, ensuring your commercial windows are clear. 

1. Clean Your Windows Every 3 Months 

Regular window cleaning is crucial for maintaining the cleanliness and appearance of your commercial property. While the frequency of cleaning may vary depending on factors such as location and environmental conditions, we recommend cleaning your windows every three months. 

By sticking to a regular cleaning schedule, you can prevent the accumulation of dirt, grime, and other debris that can obscure the view and give your windows a dull and unappealing appearance. Regular cleaning also prevents the build-up of stubborn stains, fingerprints, and grease, making the task of cleaning them much easier. 

2. Have the Right Tools for The Job 

Investing in the proper tools for window cleaning is essential to achieving spotless windows. Here are the must-have tools you should have in your window cleaning arsenal: 

Dry soft brush: Start by removing any cobwebs, dust, or loose debris from the window surface. A large dry brush or broom handle can effectively sweep away these particles, ensuring a clean starting point. 

Bucket: Fill a bucket with warm water and add a small amount of a purpose-made window cleaning solution.  

Sponge: A sponge is an excellent tool for applying the cleaning solution to the window surface. It helps to loosen dirt and grime, making it easier to remove during the cleaning process. 

Squeegee: A squeegee is a key tool for achieving streak-free, sparkling windows. Choose one with a rubber blade that fits the width of your window. The squeegee will remove the cleaning solution and excess water from the glass surface. 

Scrim’ cloth: A scrim cloth is perfect for polishing the windows after cleaning. These lint-free cloths effectively remove any remaining streaks or moisture, leaving your windows shining. 

Safety equipment: Safety should always be a priority when cleaning windows. Depending on the height and location of the windows, consider using safety equipment such as a ladder, harness, or safety goggles to ensure your well-being. 

Having the right tools for the job not only makes the window cleaning process more efficient but also helps you achieve better results. 

3. Clean the Inside and Outside of the Window 

When it comes to achieving spotless windows, it’s crucial to clean both the inside and outside surfaces. While it may seem obvious, neglecting one side can result in windows that are only partially clean. Here’s why it’s important to tackle both sides: 

Firstly, Cleaning both sides ensures a consistent level of cleanliness throughout, which is especially important for commercial properties where the appearance of professionalism and attention to detail is essential. By only cleaning one side, you may leave behind dirt, smudges, or fingerprints that will detract from the overall cleanliness of the windows. 

Both the inside and outside of windows are exposed to different elements. The inside may accumulate dust, dirt, and fingerprints, while the outside is susceptible to environmental factors like pollution and weather. By cleaning both sides, you effectively remove all the build-up that can hinder the clarity of your windows. 

4. Technique is Key 

A man window cleaning

Once you have applied the cleaning solution and thoroughly scrubbed the window, it’s time to remove the solution and excess water using a squeegee. This tool is essential for achieving streak-free, spotless windows. Here’s how to properly use a squeegee:

Start from the top corner: Position the squeegee at the top corner of the window, ensuring that the rubber blade is in contact with the glass. 

Pull the squeegee across the glass: Using a steady motion, pull the squeegee across the glass, moving horizontally or vertically, depending on your preference. Maintain even pressure throughout the process. 

Wipe the blade clean after each swipe: After each swipe across the glass, wipe the rubber blade clean using a lint-free cloth. This prevents streaks caused by residue left on the blade. 

Overlap each stroke: As you continue to use the squeegee, overlap each stroke slightly with the previous one. This ensures that you remove all the cleaning solution and excess water from the window surface. 

By following these steps, you will effectively remove the cleaning solution and excess water from the window, leaving behind a streak-free and sparkling surface. 

5. Don’t Forget About the Windowsills and Frames! 

Before cleaning the window glass, it’s important to give equal attention to the window frames and ledges. Use a damp cloth and a mild cleaning solution to wipe down the frames, removing any dirt, dust, or grime that may have accumulated. This step ensures that the dirt and mould doesn’t build up. Neglecting the frames and ledges can diminish the overall cleanliness and appearance of your windows, so take the time to give them the attention they deserve for a truly pristine result. 

Windowsill Cleaning

6. Don’t Be Afraid to Seek Expert Help 

When it comes to cleaning windows, safety should always be paramount. Especially for tall commercial properties, those with complex architecture, or establishments with extensive glass fronts, it’s important to prioritise safety and seek expert help. 

Working at heights can be dangerous and requires specialised equipment and training to ensure the task is completed safely. In fact, we offer this service as High Level Cleaning, Cleaning windows in hard-to-reach places, such as high-rise buildings or intricate architectural designs, requires the expertise of professionals who have the necessary safety gear, knowledge, and experience to manage the job. You can also check out our blog; Internal & External High Level Cleaning: All You Need To Know Guide 

By enlisting the help of an expert window cleaning service, you can ensure that the cleaning process is performed correctly and without risk. These professionals are equipped with the proper safety equipment, including harnesses and anchors, to ensure their well-being while working at heights or in challenging locations. 

Expert window cleaning services also have the experience and expertise to effectively clean windows of all types and sizes. They know the best techniques and use professional-grade equipment and cleaning solutions to achieve spotless results. 


Maintaining clean and spotless windows in your commercial space is not only important for aesthetics but also for the health and well-being of your employees. Neglecting your windows can lead to a build-up of grime, dust, and even mould, which can negatively impact the indoor air quality and lead to increased staff absences. Additionally, your commercial property’s windows are the first thing visitors see when they arrive, so it’s essential to make a positive impression. 

Lastly, it’s important to remember that maintaining clean and spotless windows is an ongoing process. Regular cleaning and maintenance will help you achieve long-lasting results. By implementing these six top tips and incorporating them into your window cleaning routine, you can ensure that your commercial windows remain in pristine condition. Don’t underestimate the impact that clean windows can have on the overall appearance and reputation of your business. 

How we Can Help 

“At Pristine Commercial Cleaning Services, we believe that clean windows are crucial for maintaining a positive image and a healthier, more inviting environment for your business. Don’t underestimate the power of spotless windows in creating a lasting impression. 

We can clean windows up to 80ft from floor level with our pole system, following IRATA standards and procedures,” highlighted Tracie Dudley Shaw, Director at Pristine. 

Whether you need regular cleaning or a one-time service for your business, we are here to help you. For more information on our Window Cleaning Services conducted by our fully experienced and qualified staff, and to request a free initial survey and quote, please contact us using our quote form. You can also reach us by email at or by calling us on 0808 506 7387. 



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