The Benefits of Using Purified Water for Window Cleaning
- Xiarah S.
- Dec 12, 2025
- 3 min read
Have you ever spent time cleaning your windows, only to step back and see streaks, hazy patches, or tiny white spots clinging to the glass? You’re not alone. Many London property owners face the same problem — and the main culprit is often the water being used.
In window cleaning, the water you use matters just as much as the tools in your hands. Purified water is filtered to remove minerals and impurities, so it dries without leaving residue. The result? Bright, streak-free windows that really let in the light. This isn’t just a professional trick — it’s backed by the simple science of how water behaves when it evaporates.
Let’s explore the benefits of using purified water for window cleaning and why it’s the go-to method for many professionals.
Purified Water Leaves a Streak-Free Finish

Tap water contains minerals like calcium and magnesium that can cling to glass as it dries. These minerals leave behind streaks and spots, making freshly cleaned windows look less than perfect.
Purified water, with most of these minerals removed, dries completely clean. It’s especially useful for:
Large exterior windows
Skylights and high-level panes exposed to rain and pollution
With purified water, your windows look truly clean, and natural light flows through without distraction.
Purified Water Lifts Dirt More Effectively
Purified water isn’t just streak-free — it actually works better at lifting dirt. With the minerals removed, the water can bond with particles on the glass, lifting grime instead of just pushing it around.
This means:
Fewer passes over each window
Faster cleaning times
Windows that stay cleaner for longer
For homes or businesses with multiple windows, this efficiency makes a real difference in time and results.
Purified Water Window Cleaning Reduces the Need for Chemicals

Another advantage of purified water is that it often removes the need for soaps or chemical cleaners. Ordinary tap water usually requires detergents to prevent streaking, but these can leave residues behind.
Using purified water alone provides:
Fewer chemicals on your property
Gentler cleaning for window frames and seals
Less dust and grime sticking afterward
It’s a simple, eco-friendly approach that delivers professional results without unnecessary additives.
Supports Safer and More Efficient Exterior Cleaning

For exterior windows, purified water is often combined with water-fed pole systems. These allow cleaners to reach higher windows safely from the ground, reducing reliance on ladders or other high-access equipment.
Even for large or multi-storey properties, this system ensures:
Thorough cleaning without missing corners or edges
Faster completion times for external windows
Minimal disruption to your property during the clean
Gentle on Surfaces and Versatile
Purified water isn’t just for glass. It can safely clean a variety of exterior surfaces, such as:
uPVC or painted wooden frames
Cladding and fascia boards
Window sills and ledges
Its mineral-free composition prevents scratching or streaking and keeps surrounding surfaces in excellent condition.
Tip: While purified water can be used indoors, traditional hand-cleaning methods like microfibre cloths and squeegees are often more practical. They give better control over drips and protect furniture or flooring.
Book a Pure Water Window Clean Today!
At The Riviera Group, we use a professional water-fed pole system with purified water for all external window cleans. This ensures your windows are sparkling, streak-free, and looking their absolute best — no matter the weather or London’s pollution levels.
If you want windows that look clearer, stay cleaner longer, and let light flow beautifully through your home or office, book your next window clean with us today. We’ll take care of the glass — you enjoy the view.






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