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Render cleaning

Bring your render back to its true colour with a gentle soft wash that's safe for coloured finishes.

Signs your render needs cleaning

  • Green or black streaks down the walls
  • Algae, moss or lichen growing on the render
  • Dirt and pollution staining
  • White, cream or coloured render looking dull and discoloured

Free survey and no-obligation quote, across Hampshire and the South Coast.

Render gives a property a clean, modern look, but it's porous and stains over time. Dirt, algae, moss and air pollution leave green or black streaks that look bad and, left alone, can damage the surface.

Growth and grime hold moisture against the render, which can lead to cracking and decay. In older or poorly insulated walls, that trapped moisture can show up as damp inside.

We remove the organic growth and surface grime with a low-pressure soft wash, restoring the render's original colour without harming the material.

What you get

  • Restores the colour. White, cream, grey or coloured, your render goes back to its natural tone.
  • Protects the surface. No more growth holding moisture against the render, which leads to cracking and staining.
  • Safe for delicate finishes. Low pressure, so no stripped surfaces or faded colour.
  • Keeps the property's value. A clean exterior shows care, whether you're selling, letting or staying put.

Render types we clean

Our soft-wash method is safe for K-Rend, Monocouche, silicone and acrylic finishes, including coloured render.

How a render cleaning job runs

  1. Survey and quote

    We look at your render type and how we'll reach the upper walls. Most two-storey homes need only ladders or a mobile tower. If scaffolding is needed, we'll tell you in advance and include it in the quote.

  2. The soft wash

    We clean at low pressure, which lifts algae, moss, dirt and pollution without the damage or colour fade that high-pressure jet washing can cause.

  3. Biocide treatment

    We apply a biocide to kill anything left behind, so the growth doesn't come back quickly.

Questions we're asked

Is render cleaning safe for coloured or delicate finishes like K-Rend?

Yes. We use a soft-wash method designed for delicate render. Unlike high-pressure jet washing, it lifts stains without damaging the surface or fading the colour.

What causes the green or black stains on my render?

Usually algae, moss, lichen or air pollution. We remove them, then apply a biocide to stop them coming back quickly.

How long does render cleaning last?

In most cases two to three years, depending on where you live. Properties near trees, in shade or on the coast may see growth return sooner. We can advise on treatments that help it last longer.

Do you need scaffolding to clean render?

Not always. On most two-storey homes we reach the upper walls with ladders or mobile towers. If scaffolding is needed, we'll tell you in advance and include it in the quote.

Do you clean render on commercial properties?

Yes. We work with landlords, letting agents, care homes, schools and offices, and can fit the work around your access and timing needs.

What customers say

Had a full team and they were amazing. Can not believe the difference - the roof tiles 35 years old now look brand new and the 5yr guarantee means no more moss or clogging of drain pipes. Am super happy and they cleaned up so well - and there was a lot to clear up. Windows and gutters all sparkling.

Checkatrade review
  • “We had a 4 man team for 2 days cleaning the exterior of the house. Every member of the team was friendly, approachable, professional and worked to a very high standard. The team turned up on-time, got their equipment set up and went to work. Couldn't be happier with the service; the attention to detail and end result speaks for itself; one of my neighbours even came round to enquire about having their house done. I highly recommend Blue Shield; you wont be disappointed.”

    Checkatrade review

  • “2 day clean carried out on a very large residential roof. The results are outstanding and the house looks new. The team were polite and friendly and explained everything they were doing across the 2 days. Also had 2 slipped tiles and a broken tile that were all fixed too. I would highly recommend Blueshield!”

    Checkatrade review

  • “What a superb job! We couldn't be happier with the results. The house looks amazing. The guys were super professional as well as being so polite and accommodating. We highly recommend them to anyone thinking of giving their house a makeover!”

    Checkatrade review

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Where we work

Based in Southampton, we cover Hampshire and the South Coast. Not on the list? Ask us: we cover the whole South Coast.

Get a free render cleaning quote

Tell us about your property and we'll arrange a visit to survey it and give you an exact price. It costs nothing.

Free and no obligation.