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How Often Should You Clean Your Windows?

If you’re wondering how often should you clean your windows, you’re not alone. Whether you’re managing a home or business, clean windows aren’t just about looks—they affect your natural light, air quality, and even your windows’ lifespan. But what’s the ideal window cleaning schedule?

Let’s break it down.

Why Clean Windows Matter

Clean windows enhance more than just your curb appeal. They:

  • Allow more natural light indoors
  • Improve your mood and productivity
  • Help prevent long-term damage to glass and seals
  • Save you money by reducing the need for costly repairs or early replacements


In fact, the International Window Cleaning Association reports that regular professional cleaning can extend window life by up to 20 years when done properly.

So how often should you clean your windows? The answer depends on a few key factors.

How Often Should You Clean Your Windows?

For most residential properties, window cleaning every 4 to 6 months is a good rule of thumb. But that’s just a baseline. Some homes—especially in places like Los Angeles—need more frequent cleanings due to environmental factors.

Factors That Affect Cleaning Frequency

1. Your Location

If you’re near:

  • A busy street or freeway

  • Coastal areas with salty air

  • Trees, which drop sap, pollen, and leaves

  • Ongoing construction zones

…you’ll need to clean your windows more often—closer to every 2–3 months.

2. Climate and Season

Los Angeles gets plenty of sunshine, but it also faces high smog levels, pollen, and occasional wildfires. After spring pollen or ash from fire season, a good cleaning restores visibility and protects the glass.

3. Window Positioning

South- and west-facing windows usually get dirtier faster due to stronger sun exposure and wind. Skylights or flat windows also collect more debris than vertical ones.

4. Type of Property

  • Residential windows typically need cleaning 2–3 times per year

  • Commercial windows, especially storefronts, should be cleaned monthly or bi-monthly for a polished customer-facing look.

Interior vs. Exterior Windows

People often ask how often should you clean your windows inside vs. outside? Here’s a quick breakdown:

  • Exterior windows: Clean every 3–4 months, more often if exposed to trees, dust, or road debris.

  • Interior windows: Clean every 4–6 months, unless you have kids, pets, or smoke indoors.

Benefits of Routine Window Cleaning

If you’re still wondering how often should you clean your windows, consider the benefits of staying on schedule:

  • Improved visibility – especially for scenic views

  • Prolonged window life – grime and hard water stains can corrode glass over time

  • Increased energy efficiency – dirty windows block sunlight and reduce indoor warmth

  • Better air quality – pollen and dust buildup can trigger allergies

DIY vs. Professional Window Cleaning

While you can clean your own windows, DIY isn’t always the best choice.

Risks of DIY:

  • Streaks from using paper towels or the wrong cleaner

  • Safety hazards on ladders, especially for two-story homes

  • Damage to glass from abrasive tools or hard water deposits

Benefits of Hiring a Pro:

  • Streak-free, spotless results

  • Safe and efficient techniques

  • Proper equipment and eco-friendly solutions

  • No time or hassle on your part

At ClearCraft Cleaning, we specialize in professional window cleaning in Los Angeles with fully insured technicians, top-tier tools, and zero risk to your home.

Sample Window Cleaning Schedule

Window Type Suggested Cleaning Frequency
Exterior Windows Every 3–4 months
Interior Windows Every 4–6 months
Screens/Sills Twice a year
Commercial Fronts Every 1–2 months

Why It Matters in Los Angeles

Living in LA means more sunshine—and more pollutants. Smog, coastal salt, tree sap, and dust accumulate fast, making it harder to keep windows clean for long. And because LA residents use natural light to offset energy bills, clean windows save money over time.

In high-sun areas like Southern California, how often should you clean your windows? Answer: as often as it takes to keep the glass clear and energy-efficient—which may be every 2–3 months for high-traffic zones.

Final Thoughts: How Often Should You Clean Your Windows?

To wrap it up—how often should you clean your windows really depends on your location, lifestyle, and exposure. But as a rule:

  • At least 2–3 times per year for homes

  • Monthly or bi-monthly for commercial properties

  • More often in high-pollen or smog-heavy areas like Los Angeles

Sticking to this schedule means better light, cleaner air, and long-term savings on window replacements.

Book A Professional Cleaning With Clear Craft

At ClearCraft Cleaning, we offer expert window cleaning across Los Angeles—from the Valley to the coast. Our pros deliver spotless, streak-free results using safe, eco-friendly methods.

👉 Call (818) 671-8742

👉 Or Request a Free Quote Online

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