Soft Washing job by Poli Clean in Melbourne

Outside

Deep clean without the damage.

Low-pressure application of specialised chemical treatments to safely remove mould, algae, and grime from delicate exterior surfaces — render, roofing, timber, and cladding — without the risk of stripping paint or forcing water where it shouldn't go.

Fully insured
Bond-back guarantee
Same-day quotes
Experienced contractors

Overview

Soft washing is the industry-standard approach for anything you can't safely blast. It's slower, gentler, and lasts longer because it kills the growth at the root instead of just knocking it off the surface.

Starting price

from$6

per m²

GST exclusive. Final quote returned the same day, as soon as possible.

The method

How soft washing works.

01

Surface + substrate assessment

We identify the substrate — render, painted brick, weatherboard, Colorbond, tile — and match the dilution and dwell time to it. Delicate finishes like limewash or heritage render get a bespoke mix; robust surfaces like tin roofing get a stronger treatment.

02

Chemical application & dwell

A biodegradable soft-wash solution is applied with a low-pressure pump that mists the surface rather than blasting it. The chemistry does the work — killing mould, lichen, algae and moss at the root over 10–20 minutes of dwell time.

03

Gentle rinse & neutralise

We rinse the surface at a pressure no higher than a garden hose, then neutralise runoff around gardens and lawns. Plants and pets are protected throughout — we pre-wet garden beds and rinse foliage after treatment.

What's included

Every soft washing covers.

Fixed price. No hourly billing. What you're told upfront is what you pay when we hand the keys back.

  • Biodegradable, plant-safe chemistry
  • Roof, render, weatherboard and Colorbond safe
  • Kills mould and lichen at the root
  • Full plant and pet protection protocol
  • Longer-lasting results than pressure washing alone

Before & after

The difference, side by side.

Real results from recent soft washing jobs. Drag the handle to compare.

Soft Washing after Poli Clean
Soft Washing before Poli Clean
BeforeAfter
Timber deck soft wash — mould and grime lifted without damaging the boards.
Soft Washing after Poli Clean
Soft Washing before Poli Clean
BeforeAfter
Bluestone feature wall — moss and lichen softly washed away.

FAQs

What people ask before booking.

Something not covered? Send us a message and we'll answer honestly — even if the honest answer is "we're not the right fit."

Ask a question

Pressure damages soft substrates — it strips paint from weatherboard, forces water behind render, and cracks aged roof tiles. Soft washing uses chemistry, not force, to do the work. It's the only safe method for most house exteriors and roofs.

Because we kill growth at the root rather than just removing what's visible, results typically last 2–3× longer than pressure washing alone. Expect a clean surface for 18–24 months on most exteriors.

Yes. We use biodegradable surfactants and pre-wet all vegetation before application. Post-rinse, we flood beds around the work zone to dilute any residue.

No. Most of our clients leave a key or provide access instructions. We'll send an ETA the morning of your booking and photo confirmation once complete.

We cover Melbourne's Inner East — Hawthorn, Kew, Camberwell, Balwyn, Canterbury, Box Hill, Doncaster, Templestowe, Glen Iris, Malvern, Toorak and surrounding suburbs. If you're just outside, ask — we often say yes.

Yes. Repeat bookings on a 6- or 12-month cadence attract a returning customer rate, and we'll auto-schedule reminders so you never miss a cycle.

Ready when you are

Get a fixed price for your soft washing.

Five short questions and we'll come back the same day, as soon as possible, with a fixed price. No obligation, no pushy follow-ups.

Poli Clean Melbourne · ABN 40 732 526 016 · Fully insured with $20M public liability · Locally based in Boroondara, servicing Melbourne's Inner East, Bayside and city fringe.

Related services

Often booked with soft washing.

All exterior services