Guide
Soft wash vs pressure wash: which does your house need?
The wrong method strips paint, pits render or leaves mould that grows back within weeks. Here is how to match the method to the surface on your home.
When you need soft wash
Render, acrylic-coated walls, painted weatherboard and older paint need low pressure and a proper detergent. The treatment kills mould spores; the rinse removes grime without forcing water into weep holes or behind the coating.
Coastal homes in Merewether, Bar Beach and Belmont build salt film and green mould on sheltered south-facing walls. Soft wash clears it without the streaks a high-pressure pass leaves on render.
If a previous cheap wash left tide marks on your walls, soft wash is the fix. The even finish comes from dwell time and controlled rinse pressure, not from blasting harder.
When pressure washing is right
Brick, concrete, driveways, paths and steel surfaces handle higher pressure. Oil stains on driveways need degreaser and a surface cleaner attachment for an even finish.
Commercial shopfronts, car parks and bin areas suit pressure washing because the substrate is hard and staining is often oil or gum rather than mould in paint.
Many jobs use both on the same property: soft wash on the facade, higher pressure on the driveway and paths. One visit, right method for each surface.
How to decide before you book
Tell us the surface types and send photos of problem areas. We will say straight if soft wash, pressure or both apply.
Paint age and condition matter. We ask about recent repaints and fragile areas before we start.
See our soft washing and house washing service pages for scope and typical pricing, or book a quote online.
Common questions
- Can pressure washing damage render?
- Yes, if the pressure is too high or the operator rushes. That is why render gets soft wash, not a standard pressure washer on full bore.
- Is soft washing more expensive?
- Often slightly, because of dwell time and detergent. It is cheaper than repainting render that high pressure damaged.
- How long does soft wash last compared to pressure rinse?
- Treated soft wash keeps mould off longer because it kills spores, not just surface dirt. Coastal homes may still need a wash every 12–18 months.