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Lightning Clean
Semi-detached house with white rendered walls and bay windows

Render Cleaning

Render Cleaning

Gentle soft washing for K-rend, silicone and painted render, removing algae and black streaks without high-pressure washing.

Render can become discoloured by algae, black streaks, red staining, atmospheric pollution and general weathering, often making a property look older than it is. Lightning Clean uses specialist soft washing and professional biocide treatments to restore rendered walls and help prevent organic regrowth.

Gentle cleaning for rendered walls

We clean K-rend, silicone and painted render using a process selected for the finish and its condition. Our specialist soft washing gently cleans the surface without the risks associated with high-pressure washing. We then apply a professional biocide treatment to target remaining spores and help keep your render cleaner and brighter for longer.

A free estimate before booking

Render cleaning prices are confirmed after a site visit, so we can assess the surface, staining and access. Request a free, no-obligation estimate; all estimates are confirmed before booking.

Read our service promises for the guarantees we offer. The one-year moss-free promise applies to treated roofs, not rendered walls.

Finishing the exterior? We can also clean fascias and soffits, and a conservatory roof can be added on to the same project.

Helpful answers

Render Cleaning FAQs

Do you pressure wash rendered walls?

Rendered walls are gently soft washed rather than cleaned with high pressure. This process targets algae, black streaks, red staining and general weathering without the risks associated with high-pressure washing. Lightning Clean then applies a professional biocide treatment to target remaining spores and help keep the render cleaner and brighter.

Can you clean K-rend, silicone and painted render?

Yes. Lightning Clean soft washes K-rend, silicone and painted render, selecting the process for the finish and its condition. Include any damage or unusual staining when requesting a free estimate, so the team can assess the surface before booking.

What does the render biocide treatment do?

After soft washing, a professional biocide treatment targets remaining organic growth and spores. It helps address algae and red staining and keep the rendered surface cleaner for longer. It forms part of the cleaning service rather than a cosmetic coating.

How is render cleaning priced?

Request a free estimate. Render cleaning prices are confirmed after a site visit to assess the finish, staining and access. All estimates are confirmed before booking, with no obligation.

Does the one-year moss-free promise cover render?

No. The one-year moss-free promise applies to treated roof areas, not rendered walls. Read our service promises for the full wording and the guarantees we offer.

Free, no-obligation estimates

Get a free estimate today

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