You can roughly date a Leichhardt house by its walls. Council's heritage studies trace plastered brick through the 1880s, face brick with plaster decoration from the 1890s, and brown or dark blue face brick into the 1930s, with a few rare weatherboard houses still standing. Soft washing, also called house washing, lifts mould and grime from all of these at low pressure, so the original finish is still there after the clean.

The earliest walls need the lightest touch. In the Excelsior Subdivision, which runs from Parramatta Road up to Marion Street, most bricks probably came from small local Leichhardt and Petersham brickmakers. They were less durable, so builders generally plastered over them and then added ornamental pressed mouldings and decorative tiles. Grime and mould collect in the recesses of that detailing, and driving water at it puts both the plaster and the soft brick it shields at risk.
From the 1890s face brick took over. It covers almost every building in the Leichhardt Street and Stanley Street area and the Scarvell Estate, and the Wetherill Estate adds glazed tiles and Art Deco brick decoration. Council's guidance for these conservation areas is to keep original face brick unpainted and original plaster intact, so when a wall looks tired, cleaning it is the sensible first step. A soft wash removes mould, algae and soot film without scouring the brick face or its mortar.
Not every job is heritage. In September 2026 we house washed a rendered two-storey Leichhardt home with a double garage, where grey streaking and mould had built up on the rendered gables, and the low-pressure wash lifted both. The remaining weatherboard houses, such as those on Short Street, call for the same care, because council lists them as rare and paint on timber lifts easily under force.
Painting over a grubby facade is the expensive answer, and in Leichhardt's heritage conservation areas it is often the wrong one too, since council asks owners not to paint original face brick. A house wash reaches the same goal by a different road: the brick's own colour comes back, and the wall keeps the finish it was built with.
On plastered houses the reward is detail. Pressed mouldings and decorative tiles that had faded into one grey surface become readable again, which counts on streets where houses share a unified building line and are seen side by side.
The method also protects what is already there. Low pressure leaves render, paint and mortar alone, so a clean does not turn into a patching job, and the biodegradable solutions we use are safe around pets, children and the small front gardens found in streets like those of the Scarvell Estate. Eaves and fascia are washed in the same visit.
Strata buildings and investment properties benefit just as much. A washed facade lifts how a block of flats or a rental presents to owners, tenants and buyers, and every job includes before-and-after photos that slot neatly into strata records or a sale campaign.
It's the approach we'd choose for it. Leichhardt's early plastered walls were rendered partly because the local brick underneath was less durable, so force is the last thing they need. Soft washing relies on low pressure and specialised cleaning solutions to lift mould and grime while leaving the render, paint and mortar as they are.
The aim is to reveal the brick's own colour, not alter it. Soft washing takes off the mould, algae and grime sitting on the surface, so a wall that has looked dull for years usually shows its original tones again. Because the pressure stays low, the brick face and mortar are not scoured.
Yes. We use biodegradable, eco-friendly products that are safe around gardens, pets and children. That matters in Leichhardt, where houses in streets like the Scarvell Estate have a small front garden tucked behind a low brick fence, and pets and plants are close to the work.
Yes, we work on strata and commercial properties as well as houses, and Leichhardt has a good number of flats and apartments. We wash render, painted brick and face brick walls, along with eaves and fascia, and supply before-and-after photos that the owners corporation can keep with its maintenance records.
Why low pressure is the right method for render, painted brick and weatherboard, and what the process involves.