Professional Soft Washing in Cornwall – Safe Cleaning for Render, Walls & Roofs

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Safe and effective soft washing in Cornwall for render, roofs, walls and delicate surfaces. Remove algae, black staining and organic growth without pressure damage. Free quotes.

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Soft washing is the safest and most effective way to clean delicate exterior surfaces without causing damage. At Cornwall Exterior Cleaning, we use industry-approved softwash systems, specialist biocides and low-pressure equipment to remove algae, mildew, black staining, lichen and organic growth from your home or business.

Perfect for rendered walls, roofs, cladding and painted surfaces, soft washing provides superior long-lasting results—protecting your property from Cornwall’s coastal climate.


Cleaning dark roof shingles with a pressure washer, showing a small dormer with white siding and windows.

What We Soft Wash

✔ Render Cleaning (K-Rend, Weber, Monocouche)

Removes green algae, red staining and black spot without damaging the render.

✔ Roof Cleaning (Tiles, Slate, Flat Roofs)

Kills moss, algae and lichen safely without high-pressure washing.

✔ Exterior Walls & Building Facades

Ideal for painted walls, cladding, pebble dash, stone and brick.

✔ Gutters, Fascias & Soffits

Brings PVC back to a bright, clean finish.

✔ Fences & Garden Structures

Restores wood and prevents future growth.

✔ Commercial Soft Washing

Shops, schools, hotels, holiday parks, industrial units & more.



Why You Might Need Soft Washing

Soft washing is essential for protecting your building, especially in Cornwall’s damp, coastal environment where algae and organic growth thrive.

1. Remove Algae, Mould & Black Staining

Cornwall’s climate causes rapid algae growth—soft washing removes it safely and keeps it away for longer.

2. Protect Delicate Surfaces

Render, roofs and painted walls can be damaged by pressure washing. Soft washing avoids cracks, etching and water penetration.

3. Improve Kerb Appeal

A clean exterior instantly lifts your home’s appearance—ideal for home sales, holiday lets or rental properties.

4. Longer-Lasting Results

The specialist biocide continues working for months, preventing regrowth.

5. Prevent Structural Damage

Moss and algae trap moisture, which can lead to cracks, staining and long-term deterioration.

6. Eco-Friendly Solutions

We use approved, biodegradable softwash solutions that are safe for your property and landscaping.

Contact us.

enquiries@Cornwallexteriorcleaning.co.uk
07921 957 356 / 01841 532 235