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Sandstone & Stone Care

Travertine Sealing in Lower North Shore

Travertine is the default pool-surround stone from Vaucluse to Palm Beach and it has one flaw: the holes. Algae, sunscreen and pool chemicals collect in the pits and the stone turns green and slick. Pressure washing opens the holes further. We clean travertine at low pressure with a biocide, fill or leave the holes as the client prefers, and seal with a breathable impregnator that keeps water and chemistry out of the pits.

Price on request · servicing 16 Lower North Shore suburbs
Travertine Sealing in Lower North Shore by The Prestige Standard
$20M
public liability insurance
11 yrs
cleaning Sydney's finest homes
5.0★
Google rating
7-day
re-clean guarantee
Lower North Shore

Travertine Sealing across Lower North Shore

The Lower North Shore is defined by steep harbour blocks, Federation homes and dense tree canopy. Roofs, sandstone walls and pool terraces here carry heavy organic growth and need a careful, low-pressure approach. For travertine sealing specifically, the surfaces we meet most in Lower North Shore are Colorbond, concrete driveways, glass, heritage sandstone, pool terraces, render. Travertine is cleaned with a hypochlorite biocide at low pressure and a soft brush, so the growth in the pits dies without the stone being eroded.

Mosman Municipal Council. Mosman Council protects a large number of Federation and Inter-war homes under heritage controls, and foreshore properties fall under harbour catchment rules. Tree canopy is dense, so roofs and sandstone retaining walls here carry heavy lichen and organic staining that responds best to soft-wash treatment rather than high pressure.

North Sydney Council. North Sydney Council governs a steep, harbour-fronting LGA where many properties have multi-level stone and tiled terraces, pool decks and large glass balustrades exposed to salt. The council's stormwater guidelines prohibit wash water in street drains, so run-off is captured on every job.

Willoughby City Council. Willoughby City Council covers leafy bushland suburbs like Castlecrag and Northbridge, where Walter Burley Griffin-era stone homes and sandstone walls are common. Leaf litter and shade accelerate moss on roofs, paths and driveways, so annual roof and pathway cleaning is standard maintenance here.

Lane Cove Council. Lane Cove Council is bordered by the Lane Cove River and national park, with many riverfront homes on sloping blocks. The council encourages water-wise practices; our recovery systems and low-flow soft washing suit these properties and their frequently shaded, moss-prone surfaces.

Hunter's Hill Council. Hunters Hill is Australia's oldest garden suburb and most of the municipality is a Heritage Conservation Area. Many homes are 19th-century sandstone, so council expectations and good practice both call for non-abrasive, pH-neutral cleaning that preserves the stone's surface patina.

Suburbs we service for travertine sealing in Lower North Shore: Mosman, Balmoral, Cremorne, Neutral Bay, Kirribilli, Cammeray, Northbridge, Castlecrag, Castle Cove, Lane Cove, Longueville, Hunters Hill, Woolwich, Greenwich, Wollstonecraft, Willoughby.

What's included

Every travertine sealing job includes

Biocide treatment and low-pressure clean of the stone and pits
Poultice of sunscreen, tannin and rust spots
Optional hole filling with colour-matched grout
Drying period and moisture test
Two coats of penetrating sealer rated for pool chemistry
Slip-resistance check on request
Suitable for

Surfaces and property types

Travertine pool surrounds and coping
Terraces, balconies and outdoor dining areas
Travertine steps and paths
Tumbled, honed and unfilled travertine
French-pattern and large-format pavers
Indoor-outdoor thresholds
Protecting the property during travertine sealing
Our method

How we clean it, and how we protect everything around it

Travertine is cleaned with a hypochlorite biocide at low pressure and a soft brush, so the growth in the pits dies without the stone being eroded. Stains are poulticed. If the client wants the holes filled, we grout them with a colour-matched filler and let it cure. After 48 dry hours and a moisture test, a penetrating sealer is applied in two wet-on-wet coats and residue removed before it hazes. We avoid gloss topical sealers on pool surrounds because they peel in chlorinated water and become slippery.

Pool water, skimmer and filter protected from debris and chemistry
Glass fencing and render masked
Sealing deferred in rain or extreme heat
Furniture lifted off the surface during the work

Why Choose The Prestige Standard

Right method
per surface

Soft wash for render and cladding. Conservation-grade chemistry for sandstone and limestone. Hot-water rotary cleaning for concrete. Pure water for glass.

Named technician,
not a subcontractor

Nathan scopes the job and a technician you can name leads it. Working-at-heights and police checks on every team member.

Council compliant,
guaranteed in writing

Drains covered and run-off captured on every job. If any area we quoted is not clean on handover, we return within seven days and re-do it at no cost.
Results

Before and after from our travertine sealing work

Our own job photos. Left is the surface as we found it, right is handover.

Full Gallery
Before and after: Sandstone Garden Steps Restored BeforeAfter
Sandstone Garden Steps Restored The steps returned to their natural warm sandstone with the iron banding visible again, and the surface skin left intact.
Before and after: Moss and Algae Removed from Shaded Stone Steps BeforeAfter
Moss and Algae Removed from Shaded Stone Steps Growth removed to the stone, grip restored and the biocide treatment slowing regrowth.
Benefits

Why owners book travertine sealing

Stops the green return in the pits for years rather than months
Pool chemicals and sunscreen wipe off instead of soaking in
Keeps travertine pale and matte, the way it was laid
Safer underfoot: no slimy film, no slippery gloss

What clients say

I recently had my brick pavers cleaned by Prestige Standard and I couldn't be happier with the results. The team was professional, punctual, and paid great attention to detail. My pavers went from looking dull and stained to fresh and almost brand new again.

Dorris Barratt
Google review · Paving Cleaning & Re-sanding

We are extremely happy about Nathan's work. Our house is totally transformed after he pressure jet the place. The sandstone stairs and surround have restored to its former glory. Driveways are like new.

Lillian Lau
Google review · Sandstone Cleaning

Highly recommend The Prestige Standard, they cleaned my sandstone, it looks perfect!

Caspar Howard
Google review · Sandstone Cleaning

5.0-star rating on Google. Read all reviews.

Travertine Sealing questions answered

If your question is not covered here, call 0494 810 609 or send the quote form and we will answer it personally.

Where we work

Travertine Sealing across Lower North Shore

We cover 16 Lower North Shore suburbs for travertine sealing from our Double Bay base.

Book travertine sealing

Fixed quote within one business day. If any area we quoted is not clean on handover, we return within seven days and re-do it at no cost.

Get a fixed quote

Tell us about the property

Four quick questions, about a minute. Nathan reviews every enquiry personally, measures the surfaces from satellite imagery and sends a fixed-price quote within one business day. Every price is on request and fixed in writing.

Fixed price, written guarantee, no deposit
$20 million public liability
Most jobs scheduled within 7 to 10 days
Same-day photo report
Step 1 of 4
What needs cleaning?

Tap everything that applies. You can add detail later.

Where is the property?
Property type
Anything we should know?

All optional. Photos and a street address let us measure from satellite and quote without a visit.

Where do we send the quote?

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Call 0494 810 609 Request a Quote