How to Clean Foggy Windows Like a Pro: 10 Tips to Try

how to clean foggy windows

Foggy windows can be a persistent nuisance, obstructing your view and detracting from the appearance of your home. Whether caused by condensation buildup, dirt, or other factors, foggy windows can be challenging to clean effectively. However, with the right techniques and tools, you can tackle this issue like a pro and restore clarity to your windows. In this comprehensive guide, we’ll explore 10 tips to help you clean foggy windows with ease.

What are the causes of foggy windows?

Before we dive into the cleaning process, it’s essential to understand why windows become foggy. Foggy windows are typically caused by condensation buildup between the panes of glass or on the surface of the glass itself. This condensation occurs when warm, moist air inside your home comes into contact with the cooler surface of the window glass.

foggy windows at home

Step-by-Step Process on How to Clean Foggy Windows

Now that you understand the causes of foggy windows and have expert tips to tackle the issue, let’s break down the cleaning process into simple steps for easy implementation. Follow these steps to clean foggy windows like a pro:

  1. Identify the areas of fogging on your windows. Determine if it’s on the inside, outside, or between the panes.
  2. Mix a solution of mild detergent or dish soap with warm water in a bucket. Alternatively, you can use equal parts white vinegar and water for a natural cleaner.
  3. Clean the exterior:
    • Wet the exterior surface of the window with the cleaning solution using a sponge or soft cloth.
    • Gently scrub the window surface, focusing on areas with visible dirt or grime.
    • Rinse thoroughly with clean water from a hose or bucket.
    • If necessary, use a squeegee to remove excess water and prevent streaks.
  4. Clean the interior:
    • Wet a clean microfiber cloth or sponge with the cleaning solution.
    • Wipe down the interior surface of the window, paying attention to corners and edges.
    • Use a second cloth or squeegee to remove excess water and prevent streaks.
  5. Use a dry microfiber cloth to wipe down both the interior and exterior surfaces of the window until completely dry. This helps prevent streaking and water spots.
  6. Check the window seals and frames for any signs of damage or deterioration. Damaged seals can contribute to fogging issues and may need to be repaired or replaced.
  7. If indoor humidity is a recurring problem, consider using a dehumidifier to maintain optimal humidity levels and prevent future fogging.

Cleaning Agents Not Suitable for Cleaning Foggy Windows

While there are several effective cleaning agents and techniques for tackling foggy windows, it’s important to note that not all cleaning agents are suitable for this task. Here are some cleaning agents to avoid when cleaning foggy windows:

1. Ammonia-Based Cleaners

Ammonia-based cleaners, such as glass cleaners and multi-surface cleaners, can be harsh on window surfaces and may leave streaks or residue behind. Additionally, the strong odor of ammonia can be unpleasant and may linger in the air.

2. Abrasive Cleaners

Abrasive cleaners, including scouring powders and abrasive pads, should be avoided when cleaning foggy windows. These abrasive materials can scratch and damage the glass surface, making the fogging problem worse and potentially compromising the integrity of the window.

3. Harsh Chemicals

Harsh chemical cleaners, such as bleach and oven cleaners, should also be avoided when cleaning foggy windows. These chemicals can be corrosive and may damage the window frames, seals, or surrounding surfaces. Opt for cleaning without chemicals or non-abrasive cleaners.

4. Strong Solvents

Strong solvents, such as acetone and paint thinners, should be avoided as they can damage the window surface and pose health risks if inhaled or absorbed through the skin. These solvents may also leave behind residue or streaks on the glass, making it difficult to achieve a clean, clear finish.

5. Vinegar Concentrate

While diluted vinegar can be an effective cleaning agent for foggy windows, using undiluted vinegar concentrate is not recommended. Undiluted vinegar can be too acidic and may damage the glass surface or surrounding materials. Always dilute vinegar with water before using it to clean windows.

cleaning foggy windows

Do’s and Don’ts When Cleaning Foggy Windows

Cleaning foggy windows requires careful attention to detail to ensure that you achieve the best results without causing damage to the glass or surrounding surfaces. Here are some important do’s and don’ts to keep in mind when cleaning foggy windows:


  1. Opt for mild, non-abrasive cleaning agents such as mild detergent, white vinegar, or lemon juice diluted with water.
  2. Before applying any cleaning agent to the entire window surface, test it in a small, inconspicuous area to ensure that it does not cause damage or leave behind residue.
  3. Use soft-bristled brushes, microfiber cloths, or squeegees to clean foggy windows. Avoid using abrasive materials that may scratch or damage the glass surface.
  4. After cleaning, be sure to dry the window surface thoroughly with a clean, dry cloth or towel to prevent streaking and water spots.
  5. If you’re unsure about how to clean foggy windows or if the fogging persists despite your efforts, consider seeking professional assistance from a window repair or replacement specialist.


  1. Using harsh chemicals, ammonia-based products, abrasive cleaners, or strong solvents when cleaning foggy windows, as these may damage the glass or surrounding surfaces.
  2. Scrubbing aggressively. Avoid scrubbing the glass surface aggressively, especially with abrasive materials, as this can scratch or etch the glass, making the fogging problem worse.
  3. Neglecting window seals. Pay attention to the condition of the window seals and frames, as damaged or deteriorated seals may contribute to fogging issues. Repair or replace seals as needed to prevent further fogging.
  4. After cleaning, ensure that no cleaning agent residue is left behind on the window surface, as this can attract dirt and grime, leading to future fogging.
  5. Proper ventilation is essential when cleaning to reduce humidity levels inside your home, which can help prevent condensation buildup on windows. Ensure that your home is adequately ventilated to minimize fogging issues.

Cleaning foggy windows may seem like a daunting task, but with the right techniques and tools, you can achieve professional-quality results. By following these 10 tips, you can effectively remove condensation, dirt, and grime from your windows, restoring clarity and brightness to your home. Say goodbye to foggy windows and enjoy the clear view of the world outside!

Hellamaid: Your Cleaning Partner

As a homeowner, look for a professional cleaning services that are not only effective but also safe for your home and the environment. With Hellamaid, you can enjoy a clean house without worrying about harsh chemicals, as our expert team knows how to get the job done using natural, everyday items.

Hellamaid is a top-rated cleaning company in Canada that’s changing the cleaning industry. Led by two engineers, Ahmed and Abdul,  Hellamaid is on a mission to make cleaning services a better experience for both ends of the market: homeowners and cleaners. We offer value to homeowners through easy online booking and impeccable customer service, while offering a flexible and well paid opportunity to our cleaning partners. Learn more about us here!

Connect with us!

Scroll to Top