Fast response — storm clean-up across QLD & NSW
Priority service · Brisbane

House Washing in Brisbane.

House washing is the most-booked job on our Brisbane schedule, and the city's subtropical climate is the reason. High summer humidity, storms from October to March and year-round warmth grow mould, algae and lichen on render, painted weatherboard and brick within 12–18 months — faster on shaded southern walls and the heavily tree-covered blocks common through Bardon, Auchenflower and The Gap.

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12+ yrsOn the ground
House Washing job by WSI Cleaning in Brisbane, QLD

We soft-wash under 500 PSI so the growth is killed at the spore level instead of being blasted off only to regrow in a few months. A single-storey Brisbane home is typically 3–5 hours on site; two-storey Queenslanders and architecturally complex homes run 5–8. Quotes are fixed in writing within 24 business hours, and most inner-suburb jobs — New Farm, Paddington, Bulimba, Ascot — are scheduled inside the same week.

Local context · Brisbane

What makes Brisbane exteriors different to clean?

Brisbane sits in a humid subtropical climate zone (Köppen Cfa). Summer humidity above 70%, frequent thunderstorms from October to March and year-round warmth combine to create the perfect environment for mould, algae and lichen. Rendered walls, painted weatherboard and concrete tile roofs all develop visible biological growth within 12–18 months without intervention — faster on shaded southern aspects and properties under heavy tree cover. Pressure alone doesn't fix this; the surface looks clean for a few months and the spores grow back. Soft washing kills the growth at the spore level so the regrowth interval is years, not months.

Our process

How we approach house washing in Brisbane.

  1. 01

    Surface assessment

    We walk the property, identify the substrate (render, brick, weatherboard, fibre cement) and flag any vulnerable points: timber, soft mortar, garden beds, painted shutters.

  2. 02

    Pre-treatment

    Plants are pre-watered and tarped where needed. Windows, doors and outdoor electrics are checked and protected.

  3. 03

    Soft-wash application

    Detergent is applied bottom-up via low-pressure pump to prevent streaking, then dwelled for 5–10 minutes so the chemistry kills mould and algae at the root.

  4. 04

    Rinse

    Surfaces are rinsed with controlled-pressure water, top-down, until run-off is clear.

  5. 05

    Finishing

    Eaves, downpipes, sills and entry points are detailed by hand. Garden beds are flushed to neutralise any over-spray.

Surfaces we clean

What this service covers.

Suburbs we cover

House Washing across Brisbane.

Brisbane questions

House Washing in Brisbane, answered.

How much does house washing cost in Brisbane?

Most single-storey Brisbane homes sit in the low-to-mid hundreds, with size, height and how much mould has built up setting the final figure. Two-storey and rendered homes cost more because of access and surface area. We confirm a fixed price in writing before any work starts — no hourly surprises.

Why can't I just pressure wash my Brisbane render?

High pressure cracks acrylic render, blows it off the substrate or strips paint, and it doesn't kill the mould — the surface looks clean for a few months then the spores regrow. Brisbane's humidity makes that regrowth fast. Soft washing is the correct method for any rendered, painted or coated wall.

When is the best time to book a house wash in Brisbane?

Year-round works, but most homeowners book in autumn (March–May) to be presentation-ready for spring, or in spring ahead of summer entertaining. If you're selling, book 1–2 weeks before photography so the exterior is at its best for the listing.

How often should I wash my house in Brisbane?

Most Brisbane homes need a full exterior wash every 12–18 months. Shaded south-facing walls, properties under heavy tree cover and homes within a kilometre of the coast typically need it every 9–12 months because of faster mould and salt build-up.

Will soft washing kill my plants?

No. We pre-water and tarp garden beds, dilute the application correctly for the substrate and flush the soil after we finish. The detergent we use breaks down on contact and is rated safe for residential landscaping when applied at the correct dilution.

Can I pressure wash my render?

No. Acrylic render and most painted exteriors should never be pressure washed — high pressure cracks render, blows it off the substrate or strips paint. Soft washing is the correct method for any rendered, painted or coated wall.

How long does a house wash take?

A standard single-storey home is usually 3–5 hours on site. Two-storey and architecturally complex homes take 5–8 hours. We confirm the time estimate with the written quote.

Do you guarantee the result?

Yes. If you're not happy with the finish, tell us within 24 hours and we'll come back and fix it at no extra cost.

Get a free quote

A fixed price, no hidden fees.

Quick and simple. No pushy follow-ups, no hidden fees, no phone call unless you ask for one.

Fast responseWe’ll get back to you as quickly as possible — usually within one business day.
Fixed pricingNo hourly surprises. The number we quote is the number you pay.
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