How Soft Washing Works and Why It Matters
Soft washing is more than just a gentler way to clean your exterior surfaces, it’s a targeted method designed to treat the root cause of organic build-up. If you’re dealing with mould, algae, or grime on surfaces that can’t handle high pressure, soft washing offers a safe and effective solution.
What Is Soft Washing?
Soft washing is a low-pressure cleaning method that uses specialised chemical solutions, usually a mould and algae treatment (biocide), to break down and remove organic contaminants. It’s designed for surfaces that can’t withstand high-pressure water, such as painted walls, roof tiles, timber, or delicate masonry.
Unlike pressure cleaning, which relies on force, soft washing treats the root cause of grime, killing spores and bacteria instead of just rinsing them off.
At Glason High Pressure Cleaning, we specialise in professional soft washing for both residential and commercial properties across the Central Coast. Our team tailors each clean to your surfaces and contamination level, ensuring a safe and long-lasting result.
What Chemicals Are Used to Soft Wash a House?
The main chemical used in soft washing is a biocide, which kills mould, algae, lichen, and other organic growth at the source. Depending on the contamination, other additives may include:
- Sodium hypochlorite (in low concentrations) for sanitising
- Surfactants to help the solution cling to surfaces
- Neutralisers or rinsing agents to protect landscaping and finishes
At Glason, we use professional-grade, biodegradable solutions that are effective and safe when applied correctly, protecting both your property and your garden.
How Long Does Soft Washing Last?
A professional soft wash can last anywhere from 12 months to several years, depending on the surface type, local climate, and surrounding conditions (like nearby trees or moisture).
Because soft washing treats the source of mould and algae, it offers longer-lasting results than pressure cleaning alone. With the right maintenance schedule, your surfaces can stay cleaner for much longer between treatments.
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What Surfaces Need Soft Washing?
Soft washing is ideal for cleaning a wide range of surfaces that require careful handling to prevent damage:
- Roofs – Especially tiled, Colorbond, or shingle roofs that can be damaged by high-pressure cleaning.
- Exterior Walls – Including painted surfaces, weatherboards, rendered walls, and cladding.
- Decks & Timber Fences – Protecting timber from water damage while removing dirt, algae, and mildew.
- Outdoor Entertaining Areas – Pergolas, verandahs, and patios that need a deep clean without stripping paint or damaging surfaces.
- Delicate Stone & Brickwork – Preserving the integrity of sandstone, heritage bricks, and decorative masonry.
Unlike pressure cleaning, which can strip paint or damage fragile materials, soft washing safely cleans without causing wear and tear.
The Benefits of Professional Soft Washing
- Protects Delicate Surfaces – No risk of damage from high-pressure water.
- Kills Mould and Algae at the Source – Prevents regrowth instead of just washing it away.
- Long-Lasting Clean – Treated surfaces stay cleaner for longer.
- Eco-Friendly Solutions – Biodegradable cleaning products that are safe for your home and garden.
- Enhances Curb Appeal – Instantly brightens and restores your home’s exterior.
At Glason’s, we bring years of expertise and state-of-the-art equipment to ensure your home receives the best care. Whether you need soft washing for your home’s exterior, roof, or deck, we provide tailored solutions to keep your property looking its best.
Soft Washing vs. Pressure Cleaning
Both soft washing and pressure cleaning are effective exterior cleaning methods, but they serve different purposes and are suited for different surfaces.
- Soft Washing uses a low-pressure application combined with specialised cleaning solutions to gently remove dirt, mould, algae, and grime. It is ideal for delicate surfaces that could be damaged by high-pressure water.
- Pressure Cleaning, on the other hand, relies on high-pressure water to blast away stubborn stains, dirt, and contaminants, making it ideal for harder surfaces like driveways, concrete, and brickwork.
Want to Understand the Difference?
Not sure which method is right for your property? While soft washing is best for delicate areas, pressure cleaning is better for tough surfaces like driveways and brick.
→ Learn more about soft washing vs. pressure cleaning and when to use each method.
Why Choose Soft Washing for Mould and Algae Removal?
If your home is suffering from persistent mould and algae growth, soft washing is a highly effective treatment. Instead of just removing surface stains, soft washing uses a mould and fungus biocide to kill spores at the source, preventing regrowth and keeping your surfaces clean for longer.
For particularly stubborn mould infestations, Glason’s offers a specialised algae and mould removal service to ensure a deeper, long-term clean.
Ready to Clean Without the Damage?
Glason High Pressure Cleaning offers professional soft washing for homes and businesses across the Central Coast.
Don’t let mould, dirt & grime take hold.
