House washing in Killara
A typical Killara exterior clean covers more surface than most Sydney suburbs. Two-storey Tudor revival houses have rendered walls, painted half-timbering and bargeboards, steep slate or terracotta roofs, and box gutters and valleys where the gables meet. Federation houses add tuckpointed brick, sandstone footings and timber verandahs. Modernist houses have low roofs, rendered or off-form concrete walls and glass that shows every drip. The common enemy is shade: gums, liquidambars and oaks keep southern walls, roofs and paths damp, so moss, lichen, mould and black algae spread, and gutters fill with litter. Solar panels under the canopy lose output to pollen and leaf dust. Rendered walls facing the Pacific Highway pick up traffic film.
A vetted tradie matches method to material. Render, half-timbering and old brick are soft washed with a cleaning solution at low pressure, preserving paint and mortar. Slate is never pressure washed; it is treated and brushed or rinsed gently, and terracotta is treated and rinsed with care from anchor points, edge rails or a platform under the WHS Regulation rather than walked when wet. Box gutters and valleys are cleared by hand and the outlets checked. Run-off carrying detergent, moss killer or paint flakes cannot enter the stormwater system, so it is directed onto the lawn or captured. Pre-1990 fibro on a garage or eaves is never cleaned under pressure. Within a heritage conservation area, cleaning needs no consent but changing finishes may.
Send through photos of each elevation and the roof, and say roughly how far the house is from the street, since hose runs and water tanks matter on a big block. Vetted, independent tradies who wash houses and roofs in Killara and nearby receive it and quote you directly after a look. The quote should itemise walls, roof, gutters, paths and solar panels, state the method for each surface, explain how the roof will be accessed, and say where the water will go. Long driveways make parking easy, but tradies will ask about low branches and gate widths for a trailer. The match is free and there is no obligation.
Exterior cleaning services you can post
Frequently asked questions
Yes, if the tradie treats it with a biocide and brushes or rinses gently from a platform or harness points instead of walking it. Slate is brittle and old fixings corrode, so they note any broken slates for a roofer rather than attempting repairs.
With a soft wash, yes. Low pressure and a cleaning solution lift the grime without stripping paint or forcing water behind the timber. If paint is already flaking, the tradie will point it out, because washing exposes bare timber faster.
Only in logistics. Tradies run longer hoses or bring a water tank on the trailer, and they check that the driveway and gate can take the vehicle. Mention the distance and any low branches when you post the job.
A biocide treatment followed by a gentle rinse. High pressure erodes sandstone and opens the surface to more growth. Treated run-off is kept off the garden beds you care about and out of the street drain.


