Stone & Surface Cleaning Guide

Not all surfaces can be cleaned the same way. Using the wrong pressure or chemicals can cause permanent damage.

Here’s a simple guide to how different surfaces are safely cleaned.

Block Paving

✔ Safe for pressure washing

✔ Weed removal recommended before cleaning

✔ Re-sanding required after cleaning

Chemicals:

  • Sodium Hypochlorite (hypo) – for algae and black spots
  • Biocide – for long-term prevention

Concrete

✔ Durable surface

✔ Can handle higher pressure

✔ Ideal for deep cleaning

Chemicals:

  • Hypo – effective for organic growth
  • Degreasers – for oil stains

Indian Sandstone

⚠ Requires lower pressure

⚠ Can be damaged by aggressive cleaning

Chemicals:

  • Light hypo mix (carefully applied)
  • Biocide preferred for ongoing treatment

Porcelain

⚠ Low pressure only

⚠ Easy to mark if cleaned incorrectly

Chemicals:

  • Specialist porcelain cleaners
  • Mild solutions only

Tarmac / Asphalt

❌ High pressure can cause damage

✔ Soft washing recommended

Chemicals:

  • Biocide – for moss and algae
  • NO strong hypo mixes

Render

❌ Do NOT pressure wash

✔ Soft wash only

Chemicals:

  • Biocide (primary treatment)
  • Very light hypo mix (only when appropriate)

Natural Stone (General)

⚠ Varies depending on type

⚠ Always requires a tailored approach

Why This Matters

Using the wrong method can:

  • Damage surfaces
  • Leave visible marks
  • Shorten the lifespan of the material

Not Sure What Surface You Have?

Send us a photo and we’ll advise the safest way to clean it.

Call: 07578 296169
Email: info@dreamjetting.com

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