Can you Pressure Wash Windows [2023 Updated]

If you’re like most homeowners, you want to keep your windows clean and clear to enjoy a beautiful view and let in natural light. But sometimes, a simple wipe with a cloth won’t do the trick, and you may wonder if pressure washing is a viable option. Perhaps you’ve had a recent storm or your windows have accumulated dirt and grime over time, and you’re looking for a more efficient solution.

Can you Pressure Wash Windows? Pressure washing windows is not recommended as it can cause damage to the glass and frames. High-pressure water can break or crack the glass and strip away the sealant that keeps the window watertight. Instead, use a specialized window cleaning solution and a soft cloth or squeegee.

In this blog, we’ll explore the question of whether you can pressure wash windows and provide tips for safely and effectively cleaning your windows.

Pressure Washing Windows: Pros and Cons

Pressure Washing Windows: Pros and Cons

Windows are an essential part of any building. They provide natural light and ventilation while enhancing the overall aesthetic appeal. Over time, windows tend to accumulate dirt, grime, and other types of debris that can make them look unsightly.

To clean windows, many homeowners resort to using traditional methods like wiping with a cloth or using a squeegee. Following are the pros and cons of pressure washing windows, so you can decide whether it’s the right option for your window cleaning needs.

Advantages of pressure washing

The advantages of pressure washing windows include saving time and effort compared to traditional cleaning methods, achieving a more thorough clean, and being able to reach high or difficult-to-reach areas.

Pressure washing can help remove tough stains and buildup, and it can be a more environmentally friendly option since it often requires less water and cleaning solutions than other methods. Use the right equipment and techniques to avoid damaging the windows or surrounding areas.

Disadvantages and potential risks

This section of the blog post focuses on the potential disadvantages and risks of pressure washing windows. It highlights that using high pressure on delicate window panes can cause cracks or breakage, and recommends avoiding pressure washing on old or damaged windows.

Pressure washing can cause water to seep into the window frame or surrounding areas, potentially causing water damage or mold growth. Take caution and follow safety guidelines when pressure washing windows to minimize these risks.

Suitable window types for pressure washing

When it comes to pressure washing windows, not all types of windows are created equal. Some windows can handle the high-pressure water stream, while others cannot. Windows made of sturdy materials such as vinyl, metal, or fiberglass can withstand pressure washing.

It’s not recommended to pressure wash delicate or old windows made of wood or glass. In such cases, a gentle hand-washing method may be more appropriate. Assess the condition and material of your windows before deciding whether pressure washing is a suitable option.

Step-by-Step Guide to Pressure Washing Windows

Step-by-Step Guide to Pressure Washing Windows

Here are the ins and outs of pressure washing windows and provide you with all the information you need to safely and effectively clean your windows with a pressure washer.

Preparing the windows

Preparing the windows is a crucial step before pressure washing them. This involves removing any loose debris or dirt from the surface, covering nearby objects or plants to prevent damage or contamination, and inspecting the windows for any cracks or damage that may be exacerbated by pressure washing. Proper preparation will ensure a safe and effective pressure washing process and protect your windows from potential damage.

Setting up the pressure washer

In the process of pressure washing windows, setting up the pressure washer is a crucial step. It involves selecting the appropriate nozzle for the job, connecting the water supply, and adjusting the pressure level according to the type of window and the level of dirt or grime present on it. Proper setup ensures efficient cleaning while minimizing the risk of damage to the windows or the surrounding area.

Applying detergent

When pressure washing windows, applying detergent is an important step that can help remove stubborn dirt and grime. Before applying the detergent, it is essential to wet the windows to prevent the detergent from drying out too quickly. The detergent should then be applied evenly across the surface of the window using a low-pressure setting on the pressure washer.

It is recommended to let the detergent sit for a few minutes before rinsing it off with high-pressure water. Using a specialized window-cleaning detergent can help prevent streaks and leave the windows looking crystal clear. Follow the manufacturer’s instructions when using any cleaning product to avoid damaging the windows.

Pressure washing the windows

Pressure washing the windows is a method of cleaning windows using high-pressure water spray. While it may seem like an effective way to clean windows quickly, it can also be dangerous and potentially damage your windows if not done correctly. Before pressure washing your windows, make sure to use a lower pressure setting, test a small area first, and avoid using hot water.

Wear protective gear and use caution when working at heights. Ultimately, if done correctly, pressure washing can be an effective way to clean your windows, but proceed with caution and follow safety guidelines.

Rinsing and drying

After pressure washing your windows, rinse off any remaining soap or debris. This can be done by using a garden hose or a bucket of clean water. Once the windows are rinsed, dry them thoroughly to avoid any water spots or streaks.

You can use a squeegee, a clean cloth or a microfiber towel to dry the windows. Make sure to wipe off any excess water from the edges and corners of the windows to achieve a clear and streak-free finish.

Alternative Window Cleaning Methods

Alternative Window Cleaning Methods

Following are some of these alternative methods and help you decide which one is right for your window cleaning needs. Whether you’re looking for a more gentle approach or simply want to try something new, there’s a window cleaning method out there that’s perfect for you.

Handwashing with soap and water

The alternative window cleaning method of handwashing with soap and water involves using a cloth or sponge to gently scrub the windows, followed by a squeegee to remove excess water. This method is effective for removing light dirt and grime from windows and is a safe option for delicate or tinted windows. It may not be as efficient as other methods for cleaning heavily soiled windows.

Using a squeegee and cleaning solution

Using a squeegee and cleaning solution is an effective alternative method for cleaning windows. This method involves using a cleaning solution to break down any dirt or grime on the window, and then using a squeegee to remove the solution and leave a streak-free finish.

Use the correct type of squeegee and cleaning solution, as well as proper technique, to achieve the best results. This method is generally safer than using a pressure washer on windows and is a good option for those who prefer a more hands-on approach to cleaning.

Employing a water-fed pole system

Employing a water-fed pole system is an alternative method for cleaning windows. This system uses purified water that is pumped through a long pole with a brush at the end. The brush is used to scrub the windows, while the water rinses away dirt and grime. This method is especially useful for cleaning windows that are high up and difficult to access.

It is also safer than traditional window cleaning methods that involve using ladders. This method may not be suitable for cleaning windows that are heavily soiled or have stubborn stains. It may require professional training and equipment to use effectively.

Hiring professional window cleaners

When it comes to cleaning windows, one alternative method to consider is hiring professional window cleaners. While pressure washing windows may seem like a quick and easy solution, it can actually be risky and may cause damage to the windows. Professional window cleaners have the necessary equipment and expertise to safely and effectively clean windows without causing any harm.

They can offer additional services such as cleaning window frames and sills, which can improve the overall appearance and longevity of your windows. Ultimately, hiring professional window cleaners can save you time and money in the long run and provide a high-quality cleaning result.

Safety Tips for Pressure Washing Windows

Safety Tips for Pressure Washing Windows

Following are some essential safety tips for pressure washing windows that every homeowner should keep in mind. By following these safety tips, you can ensure that your pressure washing project is successful and safe for you and your home.

Choosing the right pressure washer

When choosing a pressure washer for washing windows, consider factors such as the pressure level, flow rate, and nozzle type. A pressure washer with a pressure level of 1500-2000 PSI and a flow rate of 1.4-1.6 GPM is ideal for washing windows without causing damage.

Using a nozzle with a wide spray pattern can help distribute the pressure evenly and reduce the risk of causing damage. Choose a pressure washer that is easy to maneuver and has safety features such as a trigger lock to prevent accidental spraying.

Using appropriate pressure settings

When pressure washing windows, it is crucial to use appropriate pressure settings to prevent damage. High pressure can cause cracks, chips, or breaks in the glass, which can be costly to repair or replace. Therefore, it is recommended to use a pressure washer with adjustable pressure settings and start with the lowest setting.

Gradually increase the pressure if necessary, but always keep it below the recommended limit for your specific window type. By using appropriate pressure settings, you can effectively clean your windows without causing any damage or safety hazards.

Maintaining a safe distance

When pressure washing windows, maintaining a safe distance is crucial for your safety. Keep a safe distance from the windows, as well as any electrical wires or other hazards. This will prevent any accidents or injuries from occurring during the pressure washing process.

Always use caution and follow safety guidelines when pressure washing windows to ensure a successful and safe cleaning experience.

Employing protective gear

This section of the blog post highlights the importance of wearing protective gear while pressure washing windows. Protective gear such as goggles, gloves, and long-sleeved shirts can help prevent injuries from flying debris or high-pressure water. It is crucial to prioritize safety when pressure washing to avoid any accidents or harm to oneself.


Pressure washing is not the ideal method for cleaning windows. The powerful water pressure can cause damage to the glass, frame, and seals, leading to costly repairs. Instead, opt for a gentle cleaning solution, a squeegee, and a soft cloth to keep your windows clean and clear.

When it comes to cleaning windows, there are a variety of methods and tools that can be used. One method that some may consider is pressure washing. However, before deciding whether or not to use this method, it’s important to weigh the pros and cons. While pressure washing can be effective at removing dirt and grime, it also comes with certain risks, such as the potential for shattered glass or water damage to surrounding areas. Ultimately, the decision to pressure wash windows should be based on individual needs and circumstances.

Frequently Asked Questions (Can you Pressure Wash Windows)

Is it safe to pressure wash glass windows?

Pressure washing glass windows can be safe if done correctly. However, it is important to exercise caution and use the appropriate equipment and techniques. High-pressure water can potentially damage the glass or its seals if not used properly.

To ensure safety, use a low-pressure setting, hold the pressure washer at an appropriate distance from the glass, and avoid directing the spray at an angle that may cause water to enter the window frames or behind the glass.

Can you pressure wash windows from outside?

Yes, you can pressure wash windows from outside. Pressure washing is an effective method to clean exterior windows, especially when dealing with dirt, grime, or mildew buildup. Ensure you have the right equipment, such as a pressure washer with adjustable pressure settings, an appropriate nozzle, and a gentle cleaning solution.

Take care to protect nearby plants, ensure the water pressure is not too high, and follow proper safety precautions.

What is the best thing to use to wash windows?

The best thing to use for washing windows is a mixture of mild detergent or window cleaner and water. You can create your own cleaning solution by mixing a few drops of dish soap or a small amount of vinegar with warm water.

Alternatively, there are commercial window cleaning products available that are specifically formulated for streak-free cleaning. Use a soft cloth or a squeegee to apply the cleaning solution and remove dirt and grime from the windows.

What PSI should I clean my windows?

When cleaning windows, it is recommended to use a pressure washer with a low PSI (pounds per square inch) setting. A PSI between 500 and 1,200 is generally sufficient for cleaning windows effectively without risking damage.

Higher PSI settings can increase the risk of breaking or cracking the glass, especially if combined with using the pressure washer at a close distance. Always start with the lowest pressure setting and gradually increase if necessary, while ensuring the glass remains safe from excessive force.

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Andrew Joseph
Andrew Joseph

Introducing Andrew Joseph, a pressure washing expert with 15 years of experience in residential, commercial, and industrial projects. Andrew shares his vast knowledge through insightful blog posts, offering valuable tips and best practices for optimal cleaning results. His passion for educating others, combined with his extensive expertise, makes Andrew an indispensable resource for those looking to master the art of pressure washing.