Our Technology

It's Not Just Water, Its Pure Water!

At R n B Window Cleaning we use the latest technology and pure water to clean windows without harsh chemicals or ladders. Our five-stage water purification process dissolves build-up and leaves streak-free windows. The advanced telescopic poles we use in place of ladders ensure safety, making us an ideal choice for commercial clients.

Stage 1

Pre-Filter (Sediment)

Stage one of Our Technology is our Pre-Filter (Sediment).  This five-micron filter removes dirt and debris from normal tap water.  Stage one or Pre-Filtration helps our other filters last longer and prepares the water for stage two of the filtration process.

Stage 2

Active Carbon Filter

Stage two takes the water through a bed of activated carbon.  Active carbon filters out other impurities from the water that stage 1 was unable to remove.  These impurities include chlorine, particles such as sediment, volatile organic compounds (VOCs), taste and odour from the water.

Stage 3

Pre-Filter (Carbon Block)

Stage three takes the water through the Pre-Filter (Carbon Block)  This 5-micron filter removes further impurities from the water that stage 1 and 2 may have missed.  At this stage, the water is 90 to 99% pure.  Its what’s known as De-ionised water.

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Stage 4

RO Membrane

Stage four is where the magic really happens.  The RO Membrane or Reverse Osmosis Membrane removes dissolved inorganic solids such as salts.  This stage also removes viruses and bacteria from the water.

Stage 5

Post Filter

Stage five is the final stage of water purification.  This stage removes any remaining particles from the water.  These particles are known as Total Dissolved Solids (TDS).  We can show you the difference between the water you get from your tap and our carefully filtered water with the aid of our TDS Meter that we carry on our van.

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You Have Questions?

Here Are Some Answers!


We send all our customers a reminder by Text Message the night before we are due to clean your windows.

Many of our customers leave their gates unlocked, and we close them over when we leave.  (We can only secure your gate if there is a catch or a bolt on the side we enter from)

For health and safety reasons we never climb over gates, walls or fences.  We don’t know what may be at the other side and climbing over any gates, walls or fences may cause damage to your property.

We send a Text Message reminder the night before we are due to clean your windows.  If you have not left your gate unlocked we will not clean any windows beyond that point.

We will not climb any gates, walls or fences.  We could slip, fall or injure our self’s.  Also, we don’t climb any gates, walls or fences in doing so may cause damage to your property.

Any gates that are left unlocked we always close behind us.  We will also use any bolt or catch that is on the same side as we entered from.

Some of our customer pay us cash on the day.  However, the vast majority of our customers are not home when we clean their windows.

We offer three ways to pay.  You can pay with cash, standing order or manual bank transfers.

Our bank details are on our Text Reminder Service that we always send the night before we are due to clean your windows.

We do not use soap or any soaps or additives in our water.  We use pure water to clean your windows.  This technology not only cleans the glass it also cleans the frames, sills and rubber around your windows too.

Pure water is water that has had its contaminants removed.  There are two ways to create pure water.

1. Distillation.

The distillation process is the most expensive way to obtain pure water.  This is dues to the energy cost when heating the water.  This process involves heating the water and collecting the steam vapour into a clean vessel.

2. Deionisation

Deionisation is the cheaper way of obtaining pure water over the distillation process.  No heat is required to create Deionised water.  Instead of using heat we use filters.  Water passes through a particle filter to remove any microcopic particles that may damage or clogg any of out other filters.  Next, the water passes through our active carbon filter.  This removes up to 99 percent of total suspended solids, volatile organic compounds, sediment, heavy metals, chloramines, and other contaminants.  Next our water goes through.  We then pass our water through Reverse Osmosis membrane filter.  This ensure our water is now the best it can be before passing through our resin chamber.  Passing our ulter clean filtered water though the resin chamber charges the water with a positive charge.  This make any dirt and debris you have on your windows stick to the water and gets rinsed away in our final rinse.

It’s not what is in our water, it’s what we have removed from everyday tap water.

All our water goes through our five stage filtration process.  It’s this filtration process that removes  mineral ions, such as calcium, copper and iron and any natural salts.  What’s left behind is pure water.

We use a device called a TDS Meter.  A TDS Meter measures the purity of water and tells you how many solids you have present in the water.

TDS stands for Total Dissolved Solids.  These solids are made up of various contaminants that may leave blemishes on your windows.  However, we regularly test our water to ensure we only ever use the purest water possible to clean your windows.

NO.  Pure water is safe to drink.  Our water will not harm your pets or plants.

When we clean your windows without fibreglass poles and soft window cleaning brush, we rinse them over with pure water.

This process removes all the dirt and grime from your windows, sills, frames and doors.  After the rinsing process some water is left behind.  If left to dry it leaves no smears, streaks or stains.

Streak and smears appear when trying to remove water from the glass using a contaminated cloth.

If you leave your windows to dry, you will see they are steak free and spotless?

Hard Ware

Our Everyday Carry

We Carry a range of additional hardware that allows us to reach windows that would be impossible or unsafe to clean using a ladder. For example, A window above a conservatory or a skylight in your roof. Our no ladder system keeps us safe and protects your property from being damaged by knocks, scrapes and scuffs. Part of our technology is our soft cleaning brush. Our brush will not scratch you uPVC or damage and rubber seals. Our soft brush works in combination with the purified water to gently remove dirt and debris from your windows, frames and doors. All the removed dirt and debris is washed away by the constant supply of pure water. Once your windows have dried you are left with no watermarks, no smears and no streaks. Just clean and crystal clear windows.