The science behind spotless windows.
If you’ve ever wondered how our customers’ windows stay gleaming for weeks without a single streak, the secret lies in our pure water window cleaning system.
At Kings & Queens Window Cleaning Sunderland, we use advanced filtration and water-fed poles to deliver a flawless, chemical-free finish — every time. But what exactly is pure water, and why is it so effective? Let’s break down how it works and why it’s the future of professional window cleaning.
What Is “Pure” Water?
Normal tap water contains minerals like calcium, magnesium, and sodium. They’re harmless to drink but terrible for glass — when the water dries, these minerals leave chalky spots and streaks.
Pure water has been de-ionised, meaning all those minerals and impurities have been filtered out.
When we use it on your windows, the purified water actually attracts dirt and lifts it away, leaving nothing behind when it dries.
The result:
Spotless, streak-free glass
No detergent residue
Longer-lasting shine
How the System Works
Our van-mounted pure-water setup goes through three key stages:
1. Filtration – The water passes through carbon and sediment filters to remove particles.
2. Reverse Osmosis – This process removes up to 99.9% of dissolved solids.
3. De-ionisation – The final polish; water exits completely pure (measured at 0 parts per million TDS).
We then pump that purified water through lightweight extendable poles, fitted with soft brushes that gently agitate dirt and rinse it away.
No ladders. No chemicals. No risk to your walls or garden.
Why Pure Water Beats Traditional Cleaning
Feature Traditional Cleaning vs Pure Water Cleaning Detergent use Soapy solutions vs 100% chemical-free Equipment Buckets, ladders, squeegees vs Telescopic poles from ground level Finish Often leaves streaks or film vs Dries spot-free and clear Safety – Requires climbing vs All work done from ground Environmental impact Detergent runoff vs Eco-friendly and residue- free
Traditional cleaning looks fine at first glance, but as soon as the detergent dries, it attracts dust and pollen.
That means your windows get dirty faster — so you end up cleaning more often and paying more over time.
Pure water systems, by contrast, keep glass cleaner for longer and are safer for your property and the planet.
Better for Your Frames and Seals
The gentle pure-water rinse doesn’t just clean glass. It washes away grime, salt, and pollutants that build up around your window frames and rubber seals. This stops mould and discolouration before they start — helping your window units last longer and saving you maintenance costs.
Because our brushes reach every corner, even upper-floor sills get the same royal treatment as your ground-floor panes.
Safer for You and Your Property
We clean from the ground up using long-reach poles — so no heavy ladders scraping walls, trampling flowerbeds, or leaning against paintwork.
This system is ideal for:
Multi-storey homes and flats
Conservatories and glass roofs
Offices and shopfronts
Schools and public buildings
Every clean is completed safely, efficiently, and fully insured up to £1 million.
Eco-Friendly by Design
Many people are surprised to learn that pure water cleaning is one of the greenest methods available.
Because it relies solely on filtered water, there are:
❌ No soaps or detergents entering drains
❌ No chemical residue left on windows or paths
✅ Reduced water usage through efficient rinsing
It’s better for your garden, your property’s exterior, and the environment — without compromising on results.
Why Businesses Love It
For commercial clients across Sunderland, Durham, and Newcastle, pure water systems offer several advantages:
Cleaner windows for longer periods — fewer visits needed.
No disruption during business hours.
Professional image maintained with minimal fuss.
Ideal for signage, cladding, and glass façades.
It’s the perfect choice for offices, salons, schools, car showrooms, and retail units where presentation counts.
Our Investment in Technology
At Kings & Queens, we’ve invested in top-grade filtration tanks, high-reach carbon-fibre poles, and precision flow controls to ensure consistent results.
We even monitor water purity levels daily with digital meters — so every job gets truly pure water, not “mostly clean” water.
This commitment to detail is why our customers across the North East us month after month.
Customer Feedback
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“Can’t believe the difference. Windows dry perfectly clear, even in the sun. Won’t go back to ladders and buckets.”
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“They explained the pure water system before starting — impressive kit and fantastic results.”
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“Eco-friendly and professional. No streaks, no fuss.”
Trusted locally, respected for quality — that’s the Kings & Queens difference.
Frequently Asked About Pure Water
Yes, pure water is highly effective because it contains no minerals or impurities. This makes it naturally “hungry,” so it breaks down and lifts dirt from the surface instead of leaving residues behind. When it dries, it leaves glass spotless and streak-free.
Absolutely. It’s safe for standard, tinted, and self-cleaning glass, as well as UPVC and painted frames.
No — because the water is completely mineral-free, it evaporates cleanly with zero marks.
Not at all. In fact, because windows stay cleaner longer, you need fewer cleans per year — saving money overall.
Book a Pure Water Clean Today
Discover the difference for yourself.
Whether you’re a homeowner or business in Sunderland, Durham, or Tyne and Wear, our pure water window cleaning service gives unbeatable clarity and value.
Kings & Queens Window Cleaning — Bringing you the cleanest of cleans available.
