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Golden sandstone steps and retaining wall being restored from black staining to warm gold

Sandstone Cleaning & Sealing

Golden sandstone steps and retaining wall being restored from black staining to warm gold

Sandstone cleaning Sydney: chemistry-led restoration of steps, walls, copings and facades at pressures the stone can carry, finished with breathable impregnating sealers rated for coastal salt.

Sandstone is the material the Eastern Suburbs is built from — steps, retaining walls, pool copings, facades, entry paths and heritage terraces. It is also the surface most often ruined by well-intentioned cleaning, because it is soft, porous and completely unforgiving of high pressure.

Why sandstone needs a specialist

Put a pressure wand on sandstone and you don’t clean it, you erode it. The result is a permanent record of every pass: wand stripes, a furred surface texture, and stone that now absorbs water and stains faster than it did before. That damage cannot be reversed — it can only be ground back by a stonemason at considerable cost.

Our approach is chemistry-led. We identify the stone and the staining type, apply the appropriate treatment, allow it to do the work, then lift the residue at a pressure the stone can carry.

What we treat

Black biological staining and lichen, salt efflorescence, rust and irrigation staining, oil and organic marks, paint spatter, and the grey weathering film that dulls stone over time.

Sealing is where the value is

Cleaning restores the stone. Sealing keeps it that way. We use breathable impregnating sealers that penetrate rather than coat — critical in coastal Sydney, because a surface film traps salt and moisture inside the stone and causes it to spall and flake from within.

A correctly sealed sandstone surface resists staining, sheds water and salt, and cleans far more easily next time. In Vaucluse, Point Piper, Rose Bay and Dover Heights, where salt exposure is constant, sealing is not a premium extra — it’s the difference between a clean that lasts a season and one that lasts years.

We restore all three of the soft stones Eastern Suburbs properties are built with — if your property has limestone facades or paving, or a travertine pool surround or terrace, each has its own dedicated method. See our sandstone restoration projects for the before-and-after on real local homes.

Related stone services: Limestone Cleaning & Sealing · Travertine Cleaning & Sealing · Paver Cleaning & Sealing · Graffiti Removal

Get a fixed written quote

Itemised by surface, priced before we start, and never finished until you've walked the property with us.

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FAQs

Questions, answered.

Everything homeowners usually ask before booking us in. Can't find your answer? Get in touch and we'll respond within 24 hours.

Ask Us Anything

Request a free quote and we'll respond within 24 hours with a fixed written quote — every surface and treatment itemised, with sealing priced separately so you can decide. No hourly rates, and no extras added on the day.

Yes — we're fully insured with $20m public liability cover.

Sandstone, render and aged concrete all need different treatment, so we match the method to the surface rather than blasting everything the same way. We identify what you have, test an inconspicuous area first, and tell you honestly what can and can't be restored.

We cover 106 Sydney suburbs across the Eastern Suburbs, North Shore and Northern Beaches — from the salt-hammered ocean strip to the canopy-shaded North Shore.

Growth is pre-treated so it's killed at the root rather than blasted off the top. Planting, lighting and pool areas are covered before we start, and runoff is controlled on sloped blocks.

We finish every job with a walkthrough — we walk the property with you and address anything you're not happy with on the spot. Nothing is signed off until you've seen every surface yourself, and you receive a photo report on every job.

Before & After

The difference, side by side.

Real Sydney properties — render, sandstone, tile, concrete and stone, cleaned and sealed the right way.

Before and after soft washing render and brick house facade in Sydney
Before After
Before and after soft washing algae stains from rendered wall and shutters
Before After
Before and after cleaning and sealing terracotta courtyard tiles
Before After
Before and after cleaning and sealing sandstone garden steps
Before After
Before and after cleaning and sealing sandstone paving path
Before After
Before and after removing moss and leaves from a stone garden path
Before After
Before and after pressure washing a concrete driveway
Before After
Get In Touch

Need a quote for your property?

Fixed written quotes, surface-matched methods, and a photo report on every job. We respond within 24 hours.