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Methods compared

Pure water vs traditional window cleaning

There are two ways to clean a window: pure water through a pole, or a bucket, washer and squeegee. Here’s how they differ, and why we use each one where it works best.

  • Rinsed with pure water, left to dry
  • Upstairs windows cleaned from the ground with a pole
  • Wickford & Rayleigh homes only
Close view of window glass with drops of water on it, reflecting a grey sky

Side by side

The two methods compared

Pure water and a poleTraditional: washer and squeegee
What goes on the glassTap water with the minerals taken outTap water with soap or detergent
How upstairs is reachedFrom the ground with a poleUsually working at height
How it’s finishedRinsed and left to dryWiped off with a squeegee and cloth
What you may see afterGlass looking wet for a whilePossible streaks or soap residue at the edges
Best forOutside glassInterior glass, where rinse water can’t run away
What we use it forOutside windowsInterior windows

How pure water cleaning works

Tap water carries dissolved minerals. When a drop dries on glass, those minerals stay behind as a small white spot. Pure water has had them taken out, by reverse osmosis and deionisation, so there’s nothing left to dry onto the window.

We make it in our van. It flows up a water-fed pole to a soft brush, so we can scrub and rinse the glass from the ground, upstairs windows included. Then we leave it to dry.

Close-up of a window drying after a pure water rinse, droplets running down clean glass

Traditional

How traditional cleaning works

The traditional method uses a washer, a soft sleeve on a handle, dipped in soapy water. It loosens the dirt, then a squeegee pulls the water off in clean strokes. Drips at the edges are wiped with a cloth.

Done well, it gives clear glass. Outside, upstairs windows usually mean working at height, and any soap left in seals can run out later. Inside, it’s the right method, because rinse water has nowhere to go indoors.

A gloved hand drawing a blue Moerman Liquidator squeegee down an interior window

Which method suits which window

Outside glass

Pure water through a pole. It rinses dirt away and dries clear, from the ground.

Interior glass

Washer and squeegee by hand. No rinse water left on your floors.

Delicate windows

Cracked paint or oiled timber needs care with either method, so let us know when we reply.

First pure-water clean

A few spots can show while old soap residue runs out of the seals.

Rain

Light rain won’t stop an outside clean. The glass is rinsed with pure water, and light rain doesn’t leave mineral spots.

Not sure?

Send a quote request and we’ll tell you which method we’d use.

FAQs

Pure water vs traditional: questions

Is pure water better than a squeegee?

For outside glass, yes. It gives a clearer finish and reaches upstairs from the ground. For interior glass, the squeegee is the right tool. Is pure water window cleaning better? goes into more detail.

Why do my windows look wet after a pure-water clean?

Because the water is left to dry. With no minerals in it, it dries clear. Why windows look wet.

Does pure water use soap?

No. The water itself does the work, with a soft brush.

Why might I see spots after switching?

Old soap residue can run out of the seals for the first few cleans. Spots after the first clean explains it.

Which do you use?

We use pure water through a pole for outside windows, and a washer and squeegee by hand for interior windows.

Is hard water a problem for traditional cleaning?

If tap water dries on glass, hard water leaves more marks. Does hard water leave spots?

A red-brick semi-detached house with clean white windows, a hedge and a tidy front garden

Get a window cleaning quote

That’s how we work: pure water outside, interior by hand. Send us a quote request and we’ll reply with a price for your home.

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  • Pure water outside
  • Interior by hand