How to Clean and Maintain Your Window Film for Long-Lasting Results

Once your window film is installed, it quietly goes to work blocking UV rays, controlling heat, and protecting your space.

To keep it performing at its best, a little regular care goes a long way. Whether you’re maintaining film in a residential home or a busy commercial space, these simple tips will help you protect your investment for the long term.

After installation, your film needs time to fully cure. This period usually lasts:

• 7–30 days depending on film type, weather and location

• You may notice a slight haze or moisture bubbles during this time, this is normal


Avoid cleaning the glass during the curing period to ensure proper adhesion and clarity.

Best Practice:

• Use a soft, lint-free cloth or rubber squeegee

• Spray with a mild, ammonia-free glass cleaner or a mix of water and a few drops of dish soap

• Wipe gently in straight strokes, don’t scrub



Avoid:

• Abrasive sponges or paper towels

• Ammonia-based cleaners

• Blades or sharp tools

• Steam cleaners or high-pressure hoses (for external film)

Residential: Every 2–3 months, or as needed to remove dust and fingerprints

Commercial: Monthly in high-traffic or glass-heavy environments like offices, shopfronts or medical centres

Professionally installed film is built to last, but keep an eye on:

• Edges: Check for lifting, peeling or bubbling, often caused by moisture or poor cleaning practices

• Surface wear: If film starts to scratch, dull or fade, contact your installer for inspection

• External film: May require reapplication sooner if exposed to harsh weather or salt air

Most films come with strong manufacturer warranties, giving added peace of mind.

To get the full 10–15+ year lifespan of your film:

• Keep blinds or curtains slightly open to reduce prolonged heat build-up

• Avoid taping, sticking or placing suction hooks directly on the film

• Keep indoor plants from pressing against the film where moisture could accumulate

With the right care, your window film will look great and work hard for years to come. If you’re unsure how to maintain it or if something doesn’t look quite right get in touch with our team at PARAGON. We’re always happy to help.

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