6 Common Commercial Window Cleaning Mistakes You Don’t Want To Make

6 Common Commercial Window Cleaning Mistakes You Don't Want To Make

Are your windows sparkly clean and streak-free? If not, chances are you’re making at least one of the common window-cleaning mistakes. Let’s explore what they are so that you can start enjoying a spotless view.

From using the wrong tools to tackling too many windows at once, let’s dive into the 6 mistakes you don’t want to make when it comes to commercial window cleaning!


Not Using the Right Cleaning Solution

Using the wrong cleaning solution can cause damage to your windows, so it’s important that you take the time to research the best product for your particular needs. For example, some windows may require a special cleaner made for that type of surface, such as an ammonia-based cleaner for those with a vinyl or aluminum frame. For indoor surfaces, look for specially-designed cleaning solutions that are less likely to leave streaks and residue.

Avoid using paper or cloth towels as these can leave behind bits of lint or fibers that will attract dust and dirt. Instead, opt for a lint-free cloth such as microfiber or high-quality squeegee. Additionally, avoid ammonia-based cleansers on any protective coatings and always test a small area of the window prior to applying the product to check its compatibility with the surface. For a more professional touch and peace of mind, consider hiring expert cleaning services who have the experience and tools to clean your windows effectively without causing any damage.

Using Too Much Cleaning Solution

Using too much cleaning solution can be a costly mistake when it comes to commercial window cleaning. The amount of solution that you use needs to be just enough to make the window look clean, without leaving behind any streaks or residue. Too much cleaner can leave behind soap scum and film, making the windows dirtier than when you started. Another problem with using too much cleaner is that it can damage certain materials, leading to a costly repair or replacement.

Spraying too little cleaner can also cause problems; if you don’t use enough solution then the dirt and grime will be harder to remove. To get it right, use just the right amount of solution for the job – not too little and not too much. Properly trained professional commercial window cleaners know how much cleaner is necessary for a given job and are experienced in getting it right every time!

Neglecting the Frames and Sills

When it comes to window cleaning, many people forget about the frames and sills. Neglecting this part of your window can be an easy mistake to make since frames and sills are not as obvious as windows. However, these areas still accumulate dirt, dust and pollen just like the glass does. Taking extra care to clean these areas will ensure that your windows look spotless and attractive once you’re done.

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One important step in cleaning frames and sills is to remove any trapped dirt or debris before you start. Use a vacuum or a soft-bristled brush to loosen bits of sticky dirt or dust that may have been building up over time. Once you’ve removed all the debris, you can use a microfiber cloth with warm soapy water, to wipe away from one side of the frame or sill in a crisscross motion. For any hard-to-reach spots where visible mold may appear, scrub with a stiff bristle brush with the same solution before rinsing off with clean water. Be sure to dry properly afterward!

Cleaning on a Sunny Day

Cleaning windows on a sunny day can be tricky. Sunlight has a tendency to dry out the cleaning solution before you have had the chance to use it – leaving stubborn streaks. On hotter days, the cleaning solution may evaporate even faster if it is not protected from direct sunlight. Additionally, strong UV rays can damage paint or other surfaces during the cleaning process if there is inadequate protection.

Where possible, try to clean commercial windows either first thing in the morning or late in the evening – right before dark – when there is less direct sunlight and no visible streaks after your cleanings are complete. If this isn’t an option, consider using an outdoor umbrella, shade cloth or tarpaulin to cover windows while they are being cleaned – blocking out some of those intensity-increasing UV rays.

Not Using a Squeegee

If you want your windows to be shining like new, it’s essential to use a squeegee for cleanup. Your squeegee should have a rubber blade with either one or two edges and should be “S” shaped for ease of use and comfort.

With the help of your squeegee, you can create streak-free windows due to its effective removal of dirt and moisture from the surface of your window pane. Without it, you may not be able to reach all the corners and crevices as successfully as a properly-used squeegee can. You may find that some spots remain unclean if not wiped with a squeegee, giving an unprofessional finished look that won’t satisfy any customers.

Make sure to use a clean cloth after wiping the dirt away with your squeegee!

Not Following Safety Protocols

When undertaking any window-cleaning job, safety must be the top priority. While it may seem easier and faster to reach windows through the use of ladders or other unstable surfaces such as chairs, these can create high-risk situations. Not only can you get injured while cleaning windows which may bring on legal ramifications depending on the situation, but you can also invalidate your insurance coverage if it is discovered that you failed to follow applicable safety protocols.

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The cheapest and safest way to clean windows is by utilizing equipment specifically designed for window cleaning – this includes poles, brush heads, and extension arms among other devices. Furthermore, you want to make sure that when operating in high places like apartment blocks and commercial buildings the correct fall-protection systems are implemented. In addition, important safety rules such as how to properly use specialized tools should always be adhered to and all workers must wear appropriate protective gear such as helmets, goggles, and gloves to reduce the risk of injury from unforeseen accidents.

Frequently Asked Questions

What are some common window cleaning mistakes?

Some common window cleaning mistakes include not using the right cleaning solution, not using proper window cleaning tools, not using protective gloves, using too much pressure when cleaning, and not cleaning the frames and sills.

What is the best way to clean windows?

The best way to clean windows is to use a window cleaning solution, a soft-bristled brush, lint-free cloths, and protective gloves. Start by removing any debris from the window and frame, then spray the solution onto the window. Use the brush to scrub the dirt away before wiping it down with the cloth.

What are some tips for avoiding window cleaning mistakes?

Some tips for avoiding window cleaning mistakes include using the right cleaning solution, using the proper window cleaning tools, wearing protective gloves, using gentle pressure when cleaning, and cleaning the frames and sills.


Cleaning windows requires the right techniques, tools, and supplies to make it easier and faster while providing a streak-free finish. Fortunately, by avoiding the common mistakes discussed in this guide, you’ll be able to easily complete your window cleaning project safely and efficiently.

Taking time to identify areas that need attention, using the right cleaning systems, reaching out for help when needed, and paying close attention to detail will give you better results with every job. Be sure to wear proper safety gear when cleaning commercial windows too – a sturdy pair of work gloves can save your fingers from many potential hazards. With these simple tips in mind, you’ll be sure to wow your customers with sparkling-clean windows!