Keeping windows clean in a city like London isn’t just about appearances—it’s a science. From battling hard water stains to tackling pollution, N Clark Window Cleaning uses the cutting-edge Pure Water System to deliver crystal-clear results. But what makes this system so effective, and why should you care? Let’s break it down.
What Is the Pure Water System and How Does It Work?
The Pure Water System is an advanced cleaning method that removes all impurities from regular tap water, such as minerals, salts, and contaminants. This process creates “pure” water, which is scientifically more effective at cleaning.
How It Works:
- Deionization: Water is passed through a resin filter that removes dissolved solids like calcium and magnesium.
- Reverse Osmosis: Further filtration removes particles as small as 0.0001 microns—around 500 times smaller than the diameter of a human hair.
- Final Purification: The resulting pure water is stored and used for cleaning with water-fed poles.
When applied to your windows, this ultra-pure water actively absorbs dirt, grease, and particles, leaving behind no residue or streaks. Unlike traditional methods, no detergents or chemicals are needed.
However, at N Clark Window Cleaning, we prioritise traditional hand-cleaning methods for most jobs, as they deliver the highest level of detail and precision. While the Pure Water System is a powerful tool, we use it selectively based on job requirements, ensuring the best results for our clients.
“Want streak-free, eco-friendly cleaning? Book Now!”
The Science of Water Purity: Why It Matters for Your Windows
Here’s why pure water is a game-changer:
Minerals in Tap Water Cause Streaks
Regular tap water contains minerals like calcium and magnesium. When it evaporates, these leave behind white streaks or watermarks. Pure water has zero minerals, so it dries completely clean.
Pure Water Is More Absorbent
Scientifically, water tries to “re-balance” itself. Pure water, which has no dissolved solids, aggressively absorbs dirt, grease, and grime to restore its natural state. This makes it a powerful cleaning agent.
Environmentally Friendly
Traditional cleaning uses detergents, which leave chemical residues on windows and can harm the environment. Pure water eliminates this entirely. However, based on years of industry experience, we find that Fairy Liquid is the best detergent for window cleaning. Having tested hundreds of products, we consistently achieve superior results using Fairy Liquid, except in specific cases requiring specialised chemicals.
Switch to a greener, more effective cleaning solution today. Contact Us
Benefits of the Pure Water System Explained
For Homeowners
- Perfect for Skylights and Velux Windows
The angled glass on Velux windows is notorious for trapping dirt. Pure water ensures streak-free cleaning without harsh chemicals, ideal for homes in areas for Window Cleaning Fulham or Window Cleaning Richmond. - Safe for Heritage Glass
Fragile, historic windows found in areas like Window Cleaning Hampstead require non-abrasive methods. The Pure Water System is gentle, preserving the integrity of your glass.
For Businesses
- High-Rise Cleaning Without Risk
Using water-fed poles, we can clean windows up to 65 feet (20 metres), allowing us to reach even taller buildings with ease. This method complies with the Work at Height Regulations 2005 and ensures the safety of both our team and your property. However, at N Clark Window Cleaning, we primarily clean by hand, minimising reliance on water-fed poles whenever possible. - Polished Look for Shopfronts
In high-traffic areas for Window Cleaning Camden or Window Cleaning Chelsea, a spotless shopfront is crucial for attracting customers.
Eco-Friendly Benefits
- No chemicals, no wastewater pollution.
- Saves water compared to traditional cleaning methods.
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Traditional vs. Pure Water Cleaning: A Scientific Comparison
| Feature | Traditional Cleaning | Pure Water Cleaning |
| Chemicals Required | Yes | No |
| Residue Left Behind | Often | None |
| Environmental Impact | High | Low |
| Safety | Ladders and scaffolding required | Ground-level operation |
| Cost Over Time | Higher due to equipment and detergents | Lower long-term costs |
Looking for safe, sustainable, and streak-free results? Learn More!
Frequently Asked Questions (FAQs)
Q: Why does pure water dry streak-free?
A: Pure water contains no dissolved solids, so when it evaporates, nothing is left behind. Traditional cleaning often leaves mineral residues that form streaks.
Q: Is the Pure Water System safe for all windows?
A: Yes! It’s perfect for all types of glass, including Velux, heritage, and modern high-rise windows.
Q: What about cleaning after rain?
A: Rainwater carries dirt, but since pure water removes all surface grime, windows stay cleaner for longer—even after light showers.
Q: Can windows be cleaned in direct sunlight or on hot days?
A: Yes, it is completely fine to clean in brilliant sunlight and hot weather. A common myth suggests that sunlight causes streaking, but streaks occur due to residue left behind by detergents or minerals in tap water. With proper techniques and quality cleaning solutions, windows dry clear regardless of weather conditions.
Q: How high can you clean using the Pure Water System?
A: Our water-fed poles reach up to 65 feet (20 metres). This height ensures we comply with HSE guidelines for safe cleaning. However, we primarily clean by hand wherever possible, using the Pure Water System only when necessary.
Q: What are your working hours?
A: We offer flexible morning bookings, but our last booking slot is between 1–3 PM. We do not operate on weekends or bank holidays.
Got more questions? Talk to our experts today! Get in Touch!
Glossary of Key Terms
- Deionization: A process that removes minerals like calcium and magnesium from water, creating “pure” water.
- Reverse Osmosis: A filtration method that removes even microscopic impurities from water.
- Pure Water System: A cleaning method that uses purified water for streak-free results without chemicals.
- Work at Height Regulations 2005: UK laws governing safety when working above ground level.
- Water-Fed Pole: A telescopic pole used to deliver pure water to windows at height, eliminating the need for ladders.
Why N Clark Window Cleaning Is London’s Best Choice
- Specialists Across London: Whether you need Window Cleaning Hampstead, Window Cleaning Wandsworth, or anywhere else, our team understands the unique challenges of each area.
- Eco-Friendly and Safe: We’re committed to protecting the environment and complying with all safety regulations.
- More Than Just Windows: Don’t forget our Gutter Cleaning London services, which prevent water damage and keep your property in top condition.
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