Published · Last updated · By the Big Deal Exterior Cleaning team, Sydney
The baseline Sydney schedule
Sydney's climate — humid summers, mild wet winters, significant tree cover and a long coastline — puts exterior surfaces under more organic pressure than most Australian capitals. These intervals are the baseline for an average suburban property with reasonable sun exposure.
| Service | Standard interval | Shorten it if |
|---|---|---|
| House wash / soft wash | 12–18 months | Shaded, coastal or heavily treed |
| Roof cleaning | 18–24 months | Overhanging gums, visible lichen |
| Gutter cleaning | 12 months | Gum trees — go to 6 months |
| Window cleaning | 3–6 months | Within a few streets of the water |
| Solar panel cleaning | 6–12 months | Coastal, dusty or bird activity |
| Driveway pressure wash | 12–24 months | Shaded or south-facing |
Three Sydney factors that shorten every interval
Aspect, tree cover and distance from the water are the three variables that decide whether your home sits at the short or long end of each range. A shaded south-facing wall in a treed street two kilometres from the beach will need roughly twice the attention of a north-facing brick home on an open block.
What actually drives the frequency
- Aspect — south and south-east walls stay damp and grow mould first, every time
- Tree cover — leaf litter blocks gutters and the shade keeps surfaces wet longer
- Salt — within about two kilometres of the coast, salt film builds on glass and metal continuously
- Humidity pockets — valleys and gullies hold moisture well into the morning
- Roof pitch — low-pitch roofs drain slowly and hold organic growth longer
The seasonal order that saves money
Sequence matters as much as frequency. Cleaning in the wrong order means paying twice — washing a house before the gutters are cleared, for example, puts debris and silt straight back down the freshly washed walls.
The correct order for a full exterior refresh
- 1Gutters first — clear them so roof runoff has somewhere to go
- 2Roof next — treat tiles and capping, with runoff draining cleanly
- 3Walls, eaves and fascias — the soft wash, top down
- 4Windows — after all wall work, so nothing lands back on the glass
- 5Driveways, paths and patios last — they catch everything from above
- 6Solar panels any time, but ideally after the roof work
Signs you have already left it too long
Waiting until the property looks dirty means the organic growth has been established for a while, and established growth costs more to remove and has already begun affecting the surface underneath.
- Dark streaks running down the roof from the ridge
- Green or black patches on south-facing walls and under eaves
- Gutters visibly sagging, or plants growing in them
- Water sheeting over the gutter edge during rain instead of draining
- Solar generation down noticeably year on year in the same season
- Paths and paved areas that have become slippery underfoot
Want this done properly?
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