Storm Window Cleaning: Keep Your Windows Crystal Clear Year-Round

Storm windows provide an extra layer of protection for your home, improving energy efficiency and keeping out dirt and debris. However, if they aren’t cleaned regularly, storm windows can collect dust, grime, and even mold growth, reducing their insulating properties and blocking natural light from entering your home.

Proper storm window cleaning improves the appearance of your home and ensures they function effectively. This guide will walk you through the cleaning process, from removing storm windows to achieving a streak-free finish.

1. Materials Needed for Cleaning Storm Windows

Before you start, gather the right tools to make clean storm windows easy and effective.

  • Microfiber cloth – Helps wipe down glass without streaks

  • Squeegee blade – Removes excess water for a streak-free finish

  • Soft sponge or brush – Gently scrub away dirt and debris

  • Spray bottle – For applying a window cleaning solution

  • Bucket – Mix warm water and a cleaning solution

  • Lint-free cloth – Ideal for drying and polishing window panes

  • Pressure washing attachment (optional) – Helps clean outside windows

Pro Tip: Using a soft wash method prevents streaks and protects wooden frames from damage.

2. The Best Way to Clean Storm Windows

Step 1: Remove Storm Windows for a Thorough Cleaning

If possible, remove storm windows for easier access to both sides of the glass panes. Be sure to handle them carefully to avoid damage. Cleaning storm windows while they are detached allows for a more thorough cleaning and prevents streaks from forming due to trapped dirt.

  • Place the storm windows on a flat surface covered with a soft cloth to prevent scratches.

  • If the storm windows have wooden frames, check for any moisture buildup or damage before proceeding.

  • Inspect the window frame and window tracks for any dirt and debris that may have accumulated over time.

💡 Tip: Place storm windows on a soft surface to prevent scratches while cleaning.

Step 2: Wipe Away Loose Dirt and Debris

Before applying a cleaning solution, use a soft brush or dry cloth to remove dust and loose dirt from the window frames and corners. Removing loose dirt first prevents streaks and keeps dirt particles from spreading while scrubbing the glass.

  • Use a microfiber cloth to dust off the window frame gently.

  • Pay extra attention to the edges of the glass, where dirt and debris tend to collect.

  • A vacuum cleaner with a brush attachment can be helpful for removing fine dust from storm windows.

Tip: A dry cloth or soft brush best cleans window corners and hard-to-reach areas before applying cleaning solution.

Step 3: Mix a Warm Water Cleaning Solution

Mix warm water with a few drops of dish soap or a natural window cleaning solution, such as vinegar and water, for an effective yet gentle cleaning process. This solution effectively removes dirt and debris without damaging the storm window glass.

  • For wooden frames: Avoid soaking them with too much water to prevent moisture damage and warping.

  • For stubborn stains: Use baking soda to gently scrub away dirt and debris without scratching the window glass.

  • For extra clarity: Add white distilled vinegar to help dissolve hard water spots and maintain streak-free windows.

💡 Tip: Avoid using harsh chemicals on storm windows, as they can weaken the insulating properties of the glass panes.

Step 4: Scrub and Rinse the Glass

Use a soft sponge or microfiber cloth to scrub the window glass, working in a circular motion to loosen the grime. Then, rinse with clean water to remove any residue that may cause streaks.

  • For streak-free windows, rinse using clean water and immediately dry with a lint-free cloth.

  • Avoid excess water pooling in the window tracks, as this can lead to mold growth and moisture buildup.

  • A squeegee blade helps remove excess water efficiently, preventing water spots from forming.

💡 Tip: Drying storm windows immediately with a lint-free cloth prevents streaks and keeps the glass crystal clear.

Step 5: Carefully Reinstall the Storm Windows

Once the windows are clean and dry, carefully reinstall the storm windows back into place, ensuring a proper fit to maintain their insulating properties. Proper installation is essential to prevent drafts, improve energy efficiency, and protect the window frame from moisture damage.

  • Ensure the storm windows are aligned correctly before securing them back in place.

  • Check for any loose seals or gaps that may need repairs to maintain better energy efficiency.

  • Wipe down the window frame and track one last time to remove any lingering dust or dirt.

💡 Pro Tip: Regular maintenance, including checking for repairs and sealing gaps, can extend the life of your storm windows and improve their insulating properties.

3. The Benefits of Regular Storm Window Cleaning

Keeping storm windows clean is not just about appearance—it also protects your home and maintains energy efficiency. Here’s why regular storm window cleaning is important:

  • Improves natural light entering your home, making rooms feel brighter and more inviting.

  • Enhances energy efficiency by keeping storm windows properly maintained, reducing heat loss in the colder months.

  • Prevents mold growth by removing moisture buildup that can accumulate between window panes.

  • Reduces dirt and debris, ensuring a clear view of the outside world and improving curb appeal.

Regular storm window cleaning also helps detect small repairs before they turn into bigger issues, ensuring that storm windows stay functional and durable for years to come. Cleaning storm windows at least twice a year—especially after heavy storms—keeps them in top condition and helps prevent stubborn stains from developing.

Tip: If storm windows are not cleaned regularly, dirt and debris can affect their insulation properties and lead to higher energy costs.dow Cleaning

  • Improves natural light entering your home

  • Enhances better energy efficiency by preventing moisture buildup

  • Prevents mold growth from trapped dirt and debris

  • Maintains storm windows for long-term use

Tip: Storm windows should be cleaned at least twice a year for the best results.

4. Common Mistakes to Avoid When Cleaning Storm Windows

  • Skipping dust removal: Always wipe down loose dirt before applying cleaning solution.

  • Using too much pressure washing: High-pressure storm window cleaning can damage frames.

  • Not drying properly: Excess water left on glass can cause streaks and water spots.

Tip: A soft wash method ensures a thorough cleaning without damage.

5. When to Call a Professional Window Cleaning Service

If you don’t have time for storm window cleaning or if they need regular maintenance, let Purilly handle it! Our professional window cleaning service ensures your windows stay crystal clear and well-maintained.

Schedule your next cleaning with Purilly for streak-free results!

FAQ: Storm Window Cleaning

  • Regular cleaning at least twice a year prevents dirt and debris buildup.

  • Pressure washing can be too harsh on wooden frames. A soft wash is a better alternative.

  • Use a squeegee blade and dry with a lint-free cloth for a streak-free finish.

  • Yes! Moisture buildup can cause mold growth if storm windows are not properly maintained.

Today Starts with a Better View

Let Purilly handle all your storm window cleaning needs. We provide friendly, professional service and guarantee a streak-free finish every time.

Book your cleaning today!

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