Our Technology

It's Not Just Water, Its Pure Water!

At R n B Window Cleaning we use the latest technology to ensure our customers get  nothing but the best final results.  We use no harsh or dangerous chemicals.  We use nothing but pure water to clean your windows, frames, sills and doors.  No soap suds to wipe away and no ladders that may mark your expensive windows and sills.  The magic happens during our water purification steps.  Combine our water purification with the latest hardware and you get sparkling streak free windows.  We take the water you can get from your tap and take it through a five-stage water purification process.  It’s this purification process that turns your everyday clean tap water into pure water.

Pure Water helps dissolve bird droppings, algae and other build-ups from your windows.  Our five stage water purification process combined with our soft cleaning brushes leave you with streak free windows.  As we are removing all the build up from your windows, your windows will stay cleaner for longer.  We do all this with some the most advanced hardware in the industry.  Our telescopic poles mean we take everything we need up to your windows while we remain with both feet on the ground.  This means no more ladders in your flower beds, marking your expensive decking and no more marks on your expensive windows frames from ladders.

For our commercial clients, we are a dream come true.  As we risk asses each new client’s premises you have the peace of mind knowing we are aware of your working practices and very aware that you have customers and clients visiting your premises.  No matter how many times we visit your premises we always think of safety first.

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 3 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.

Stage 4

RO Membrane

Stage 4 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 5 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.

You Have Questions?

Here Are Some Answers!

We do not use soap or any detergents in our water.  We use pure water to clean your windows.  This technology can not only clean 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. Deionized

Deionisation is the cheaper way of obtaining pure water over the distillation process.  No heat is required to deionize water.

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 every 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. 

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.