Folkestone & Kent • Fully Insured

Render & Wall Cleaning in Folkestone

Green algae, red streaks and black staining make render look tired — and jet-washing it will wreck it. We soft wash render safely, killing the algae at the root and leaving walls clean, even and undamaged.

★ 4.9 on Google (45)£5m insuredCheckatrade approvedLocal, Kent-based

Real Results

Render brought back to clean

A real Kent job — algae-stained render soft washed back to a clean, even finish. No high pressure, no damage.

Why It Matters

Render goes green — and it spreads

Render is porous, so in Kent's damp coastal air it quickly picks up green algae, red and orange streaking and black spotting — especially on north-facing and shaded walls. Left alone it spreads and makes even a well-kept house look tired and neglected. A soft wash clears it and, crucially, treats the spores so it stays clean far longer.

We clean render and walls across Folkestone, Hythe, Sandgate, Hawkinge and the surrounding Kent areas.

What's Included

Every render clean covers

  • Low-pressure soft wash — never a high-pressure blast
  • Biocide treatment that kills algae and spores at the root
  • Green, red and black staining lifted
  • Downpipe and gutter-line staining treated
  • Windows, doors and planting protected
  • Left clean, even and tidy

Important

Why you should never jet-wash render

This is the big one. High pressure will blow the surface off render, crack it, force water behind it and leave permanent patchy marks — an expensive mistake. Render must be soft washed: low pressure plus a biocide that does the work chemically rather than by force. That's exactly how we clean it, so your walls come up clean and undamaged. The same low-pressure approach applies to roof cleaning; for hard surfaces see our pressure washing page.

Surfaces We Clean

All render types & masonry

K-rend and silicone/monocouche render, traditional and painted render, pebbledash, brickwork and masonry. Painted surfaces are handled gently so the finish isn't stripped, and we match the treatment to the wall.

How We Work

Our render cleaning process

  1. Assess. We check the render type and condition and protect windows, doors and planting.
  2. Apply. A biocide treatment is applied to kill the algae, moss and spores.
  3. Soft wash. The wall is gently rinsed at low pressure — no damage to the render.
  4. Protect. The treatment keeps working after we leave, holding regrowth back for far longer.

Common Questions

Render Cleaning FAQs

Can you pressure wash render?

No — and you shouldn't. High pressure damages render, cracks it and forces water behind the surface. Render must be soft washed: low pressure with a biocide treatment that kills the algae chemically. That's how we clean it, safely.

What causes the green and red staining on render?

It's algae and organic growth thriving in damp, shaded conditions — very common on Kent's coast, especially on north-facing walls. Our biocide treatment kills it at the root rather than just wetting the surface, so it doesn't come straight back.

Will render cleaning damage my paint?

No. Painted render and masonry are soft washed gently so the finish isn't stripped. We match the approach to your wall.

What types of render do you clean?

K-rend, silicone and monocouche render, traditional and painted render, pebbledash, plus brickwork and masonry.

How long will it stay clean?

Because we treat the spores rather than just rinsing the surface, render stays clean much longer than a wash alone. How long depends on shade and exposure, but you'll get a good few years before it needs looking at again.

Are you insured?

Yes — Sharps Exterior Cleaning is fully insured with £5,000,000 public liability cover and is a Checkatrade-approved member.

Get your free render cleaning quote

No-obligation quote, covering Folkestone and all across East Kent.

4.9 Google (45 reviews)£5m public liabilityCheckatrade approvedPayment on completion