Soft washing vs high pressure for heritage and rendered homes
Soft washing cleans with low pressure and a cleaning solution that kills mould and grime, while pressure washing blasts it off with force. For older West End and Woolloongabba homes, timber weatherboard, render and painted brick, soft washing is usually the right choice, because high pressure can strip paint, gouge render and drive water into timber. Hard surfaces like concrete driveways can take real pressure; delicate house exteriors generally cannot.
What is the difference between soft washing and pressure washing?
Pressure washing relies on force: a high-pressure jet physically removes dirt, moss and grime. Soft washing relies on chemistry: a low-pressure application of a cleaning solution breaks down mould, algae and grime, which is then rinsed away gently. Soft washing also treats the mould rather than just knocking off the surface layer, so it tends to stay clean longer on organic growth.
Can you pressure wash render, timber or a painted Queenslander?
Not at full pressure, and this is where a lot of damage happens. High pressure on render can crack the surface and blow out sections. On timber weatherboard it lifts paint, splinters the grain and forces water behind the boards, which invites rot. On a painted Queenslander, high pressure often does more harm than the dirt did. These surfaces want soft washing. West End and Woolloongabba are full of exactly this housing stock, older timber and rendered homes, which is why blasting them is the wrong call so often.
Which surfaces need soft washing and which can take pressure?
| Surface | Method |
|---|---|
| Timber weatherboard / painted Queenslander | Soft wash |
| Render and painted brick | Soft wash |
| Roof (tile or metal) | Soft wash |
| Concrete driveway and paths | Pressure wash |
| Brick paving and hard paving | Pressure wash |
| Pool surrounds (hard paving) | Pressure wash |
The short version: house exteriors and roofs are soft wash territory; hard ground surfaces can take pressure.
How much does exterior house washing cost in West End and Woolloongabba?
Pressure and soft washing are priced by surface and area. As a guide, driveways start at $199, house exteriors start at $349, and larger jobs are worked at roughly $3 to $5 per square metre. An older home that needs a full soft wash of the weatherboard or render plus a driveway clean is quoted as a combined job. Send through the property details or use the quote calculator for a figure specific to your home.
How often should you wash a house exterior in inner-south Brisbane?
Once a year suits most homes, ideally before summer. Shaded, damp or heavily treed properties (common through West End and the older parts of Woolloongabba) grow mould and algae faster and often want a wash every eight to twelve months. Rendered and painted surfaces that are kept on a regular soft-wash cycle hold their finish far longer than ones left until the growth is heavy.
FAQ
Spotless Co. is a fully insured exterior cleaning specialist ($10M public liability cover) servicing South Brisbane to Redland Bay. Windows, pool glass and pressure cleaning, priced before we start.
Get the right wash for an older home
Spotless Co is a fully insured exterior cleaning specialist ($10M public liability) servicing West End and Woolloongabba. Book a soft wash or pressure clean, get a price in the quote calculator, or call 0451 649 420.