Softwashing vs. Other Cleaning Methods

Posted on April 10, 2025 in Cleaning

Softwashing vs. Other Cleaning Methods – At Protech Property Solutions, we’ve been delivering high-quality cleaning and maintenance services across London and the Home Counties for over 35 years. One question we’re often asked by property managers, estate agents, and building owners is:

What’s the best method for cleaning a building’s exterior—soft washing, pressure washing, or steam cleaning?

In this guide, we’ll explore the differences between softwashing and other cleaning techniques, helping you make an informed choice for your property.

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What is Softwashing?

Softwashing is a low-pressure cleaning technique that uses specially formulated biocides to safely remove organic and non-organic stains from building exteriors. It’s ideal for surfaces like render, roofing, cladding, and façades, where high-pressure cleaning could cause damage.

Unlike pressure washing, which only removes visible dirt, softwashing targets the root cause of stains—such as algae, moss, and lichen—ensuring long-lasting results. Think of softwashing as a treatment rather than just a clean.

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Softwashing vs. Pressure Washing

Pressure washing uses high-powered jets of water to blast away dirt without chemicals. While effective for hard surfaces like paving or brickwork, it can be too aggressive for more delicate materials.

Why Softwashing Wins:

• ✅ Low pressure protects the substrate from cracking or damage

• ✅ Biocidal treatment kills organic growth at the root

• ✅ Prevents quick regrowth of mould, algae, and moss

• ✅ Suitable for painted or rendered surfaces

Softwashing is the safer, more sustainable option for many building types—especially when maintaining kerb appeal and protecting long-term property value.

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Softwashing vs. Steam Cleaning

Steam cleaning uses high-temperature water vapour to remove surface dirt. It’s particularly effective for historic or delicate buildings.

At Protech, we often compare softwashing with two popular steam cleaning techniques:

Softwashing vs. DOFF Cleaning

The DOFF system heats water up to 150°C and uses low pressure to kill organic growth and remove paint or graffiti. It’s great for:

• Stonework

• Brick

• Timber

However, DOFF is not always safe for all types of render or delicate finishes.

Softwashing vs. TORC Cleaning

TORC cleaning uses a swirling mix of compressed air, fine abrasive media, and water to clean delicate surfaces—ideal for deeply embedded stains in historic stonework.

While both DOFF and TORC have their place, softwashing remains the go-to method for safely cleaning render, painted façades, and roofs—especially in modern residential blocks.

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Why Choose Protech Property Solutions for Softwashing?

At Protech, we take a tailored approach to every cleaning project. Our experienced team assesses your building first, identifying the correct cleaning technique and biocidal treatment to use. We ensure:

• No damage to the substrate

• Full removal of biological growth

• Detailed reporting with before-and-after photos

We don’t just clean—we care for your property like it’s our own.

Additional Benefits:

• Professional softwashing for render, roofing, cladding, and brick

• Use of specialist equipment designed for hard-to-reach areas

• No scaffolding required—reducing costs and disruption

• Knowledgeable staff trained in safe, compliant techniques

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Contact Protech for Softwashing in London & the Home Counties

If you’re a property manager, facilities professional, or building owner looking to protect your investment and maintain a clean, welcoming exterior, softwashing is the ideal solution.

📞 Call 01707 644 601
📩 Or get in touch via our contact form for a free quote and expert advice.

For more information on our render cleaning services please visit Protech Render Cleaning.