Guides
What things actually cost in Sydney, how often they're needed, and which method suits which surface. Written by the team doing the work, not by a copywriter who's never been on a roof.
Soft washing uses low pressure — about 150 to 180 PSI — plus biodegradable detergents that kill mould and algae at the root. Pressure washing uses high-pressure water alone, usually above 2,000 PSI, to blast contaminants off. Soft washing suits walls, roofs and painted surfaces; pressure washing suits concrete and pavers.
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Most Sydney homes need a house wash every 12 to 18 months, gutters cleared annually, windows cleaned every 3 to 6 months, solar panels cleaned every 6 to 12 months and the roof cleaned every 18 to 24 months. Coastal, shaded and heavily treed properties need the shorter interval in each range.
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Roof cleaning in Sydney typically costs between $450 and $1,200 for a standard residential home. Price is driven by roof area, pitch, storey height, access and how much lichen and moss has established. Bundling gutter cleaning with roof cleaning usually reduces the combined price.
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Yes. Dirty solar panels typically lose 15 to 25 percent of their output, and bird droppings can disable an entire cell string through the bypass diode. Rain does not clean panels — it leaves a mineral film as it dries. Most Sydney arrays should be cleaned every six to twelve months.
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