A house wash takes the mould, algae, mildew, soot film and grime off the outside of your home, working from the eaves and fascia down to the walls and the rest of the facade. Render, painted brick, face brick and weatherboard are all cleaned with a low-pressure soft wash, letting a biodegradable solution loosen the dirt so the paint and render underneath are left as they were. Common reasons to book one are an upcoming sale, a repaint, or walls that stay green in damp shade.
In September 2026 we washed this rendered two-storey home with a double garage in Leichhardt. Grey streaks and mould had built up on the rendered gables, and a gentle wash with a biodegradable solution lifted them without putting the render at risk.
Washing from the roofline down keeps dirty runoff off sections that have already been rinsed. The eaves and fascia boards go first, as mould spots, mildew and soot film tend to gather in the shade under the roof edge. The walls and the rest of the facade come next, whether your home is rendered, painted brick, face brick or weatherboard.
Walls, eaves and fascia
Mould, algae and soot film lifted
Paint and mortar left intact
Render and brick, washed gently
Weatherboard and facades
Safe for gardens and pets
A high-pressure jet held close to a wall can lift paint at its edges, score soft render, wear out mortar joints and drive water up behind weatherboards. A gentler wash takes a different route: the cleaning solution loosens the mould, mildew and soot film, and an easy rinse carries it away. Your walls keep their coating, so you are not left patching or repainting spots a cleaner has chewed up.
Professional Exterior Cleaning for a Spotless Finish
Prevent blockages, improve drainage & shield your home from water damage.
Improve your property's appearance, protect roofing & boost home value.
Safely remove tough dirt, stains, moss and grime using high pressure water.
Maximise energy production
and protect your investment.
Remove dirt and grime to enhance clarity and appearance.
Boost curb appeal and elevate first impressions.
Transforming properties with eco-friendly products, high quality equipment and exceptional attention to detail.
With modern equipment and a focus on sustainability, we protect your property’s integrity while enhancing its curb appeal. Count on us for a reliable, thorough service every time. Driven by a commitment to quality, our team pays close attention to every detail, ensuring your property remains safe, clean and ready to impress.
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Straight answers to the questions Sydney homeowners ask before booking a house wash.
A house wash covers the outside walls of your home along with the eaves and fascia above them, on render, painted brick, face brick and weatherboard. Paths, driveways, roofs and gutters are cleaned as separate services.
Not when it is done at low pressure. Paint usually fails during a wash because a strong jet catches an edge or a weak spot and peels it back. We keep the pressure down and let the solution break down the grime, which leaves sound paint where it is. If some paint is already flaking, point it out when you book so that area can be handled with extra care.
Timing comes down to the size of the house, whether it is single or double storey, how much growth is on the walls and how easy the sides are to reach. If the walls need to be finished by a set date, such as a photo shoot or a painter's start, mention it when you ask for a quote.
Clear access matters most. Unlock the side gates, close the windows, keep pets inside, and move cars, outdoor furniture and pot plants back from the walls. If you will be out on the day, say so when you book so access can be arranged beforehand.
It depends on where the house sits. Walls in damp, shaded spots, under trees or close to the water tend to need a wash every year, while sunny, open walls can usually go longer. Green or black patches appearing on the shady side are a good sign it is time to book again.
No. Render is softer and more porous than brick, so it gets a light rinse and a solution mixed to suit it. Face brick can handle a little more, but the mortar between the bricks still wears away under a strong jet. Painted brick is treated like any painted surface, and weatherboard is rinsed downward so water is not pushed up under the boards.
Aim to have it done before the photographer arrives and before the first open home. Booking a few days to a week ahead gives the walls time to dry and leaves room to reschedule if rain moves the date. It is worth adding window cleaning and a driveway clean so the whole frontage looks cared for in the listing photos.
Yes, painters want clean walls to start from. Paint laid over mould, chalky residue or grime struggles to bond and can peel early. Book the wash ahead of the painters and ask them how long they want the walls left to dry before the first coat.
Yes. We use biodegradable, eco-friendly products that are safe around gardens, pets and children. While the team is working, it still makes sense to keep pets and little ones indoors so they stay clear of hoses and wet paths.
Yes. The Leichhardt home shown above is a rendered two-storey house, and our team members are certified to work safely at heights.
Eventually, yes, because spores are always in the air and Sydney stays humid for much of the year. Washing removes the growth that is there now, and walls that dry out quickly stay clean for longer. Trimming back shrubs and branches that shade the walls helps slow its return.
Yes. Ultimate Exterior Clean is fully insured, with $10 million in public liability cover.
Yes. Every job comes with before-and-after photos, so you have a record of how the walls looked before the wash and how they finished up.
Yes. We also offer gutter cleaning, exterior window cleaning and pressure washing for driveways and paths. Tell us which ones you would like when you ask for a quote and they can be priced together.
Our local pages sit under the soft washing name, as that is the method behind every house wash. Pick your suburb to read about the wall finishes and the shade, damp or sea air that homes in that area deal with.
Proudly serving Sydney with expert exterior cleaning.
MONDAY: 7:30 AM — 6:00 PM
TUESDAY: 7:30 AM — 6:00 PM
WEDNESDAY: 7:30 AM — 6:00 PM
THURSDAY: 7:30 AM — 6:00 PM
FRIDAY: 7:30 AM — 6:00 PM
SATURDAY: CLOSED
SUNDAY: CLOSED
