Nothing beats the look of freshly cleaned windows—clear, streak-free, and gleaming in the sunlight. But if you’ve tried cleaning your windows at home, you’ve likely faced the frustrating battle of streaks, smudges, and missed spots. That’s where the experience of Perth’s window cleaning professionals comes in handy.
At KBC Services, we’ve perfected the art of achieving flawless, streak-free glass across all types of properties—from residential homes in Belmont to high-rise apartments in Joondalup. In this guide, we’ll walk you through what causes streaks, how to avoid them, and the tools and techniques used by the pros to deliver a sparkling finish—every time.
Why Do Streaks Happen in the First Place?
Streaks usually occur when dirt, detergent, or hard water residue is left behind on the glass. Common culprits include:
- Using the wrong cleaning solution or too much soap
- Cleaning in direct sunlight (which causes rapid drying)
- Using paper towels or cloths that leave lint
- Skipping the rinse or final wipe step
These mistakes are especially noticeable on larger panes, such as glass balustrades or full-length windows.
Tools of the Trade: What Professionals Use
Forget newspaper and paper towels—professional window cleaners rely on high-quality tools to eliminate streaks at the source. Here’s what they use:
✔ Squeegee with Rubber Blade
The number one tool for streak-free results. Professionals always use a high-grade squeegee with a sharp rubber edge to remove water evenly without smudging.
✔ Microfibre Cloths
Unlike regular cloths or tissues, microfibre traps dirt and moisture effectively without scratching the glass.
✔ Purified Water Systems
In hard water areas like parts of Wangara or Bayswater, purified water systems are essential. They remove minerals and impurities that cause streaking or spots.
✔ Eco-Friendly Cleaning Solutions
The right balance of biodegradable detergents helps break down grime without leaving residue.
Best Techniques for Streak-Free Windows
Whether you’re tackling a single window or preparing your home for a residential window cleaning service, these expert tips will help you avoid streaks and deliver professional-level results:
1. Avoid Direct Sunlight
Always clean windows on an overcast day or early morning. Sunlight causes water and detergent to dry too quickly, leaving marks.
2. Work Top to Bottom
Gravity matters—start at the top and work your way down to prevent dirty water from dripping onto freshly cleaned glass.
3. Use an ‘S’ Motion
Instead of wiping in straight lines, professionals use an ‘S’ or snake-like motion with the squeegee to move water off the glass without leaving lines.
4. Wipe the Blade After Every Pass
After each squeegee pass, wipe the rubber blade with a dry microfibre cloth. This avoids transferring water or dirt back onto the glass.
5. Dry the Edges
Use a clean cloth to wipe the window frame and glass edges. This prevents drip marks after the window dries.
When to Call the Experts
Even with all the right techniques, achieving a flawless finish can be difficult—especially for multi-level homes or commercial buildings. In cases where:
- Windows are hard to reach or unsafe
- Stains are persistent (e.g. hard water, salt spray, paint)
- You need a deep clean for selling or inspections
… it’s time to call in the pros. Services like internal window cleaning and external window cleaning from KBC Services guarantee streak-free clarity with zero stress.
Locations We Service
KBC Services operates across Perth, offering professional cleaning in suburbs like Osborne Park, Melville, and Landsdale. Our team uses advanced tools, safety equipment, and decades of experience to ensure your windows stay crystal clear for longer.
Book a Streak-Free Clean with KBC Services
Ready for windows that shine without streaks? Whether it’s part of regular home maintenance or a seasonal refresh, KBC Services has you covered. Our expert team handles residential, commercial, and high-rise window cleaning with a focus on quality, safety, and customer satisfaction.
Contact us today to book a service or request a free quote. Let the pros take care of it—so you can enjoy the view.
FAQs – Streak-Free Window Cleaning Tips
1. What is the best way to avoid streaks on windows?
Use a squeegee with a clean rubber blade and dry microfibre cloths. Avoid cleaning in direct sunlight and wipe frames after each clean.
2. Can I get streak-free windows without a squeegee?
It’s possible, but much harder. Squeegees are designed to remove water without leaving marks, which is key for a streak-free finish.
3. Why do my windows still look cloudy after cleaning?
Cloudiness is often caused by leftover detergent, hard water minerals, or poor drying technique. Purified water and the right tools can prevent this.
4. How often should I clean my windows to keep them streak-free?
We recommend professional cleaning every 3 to 6 months depending on your location and exposure. Learn more in our guide on how often to clean your windows.
5. Do professional cleaners always leave windows streak-free?
Yes—reputable companies like KBC Services use the right methods, water systems, and tools to ensure a spotless result every time.