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The Prestige Standard Northern Beaches · Dee Why 2099

Stone Sealing in Dee Why

Breathable penetrating sealers on clean, dry stone, so salt, tannin and water stay out and the stone can still breathe. For Dee Why homes, on our Freshwater to Dee Why run most weeks.

Price on request · Dee Why 2099 · Freshwater to Dee Why
Stone Sealing in Dee Why
$20M
public liability cover
11 yrs
in the exterior cleaning trade
5.0★
Google rating
7-day
re-clean promise in writing
Dee Why 2099

Stone Sealing for Dee Why homes

Conditions
Lagoon and estuary
Drains to
Dee Why Lagoon and Dee Why Beach
Typical surfaces
painted concrete, render, balcony tiles, car park slabs and glass
How often here
a re-seal every 3 to 5 years
Our crew
Local, Freshwater to Dee Why run
Pricing
On request, fixed in writing

What makes stone sealing different in Dee Why is black balcony soffits and streaked render on the walk-ups, salt and rust on The Strand towers, and oil-stained, algae-slick basement car park ramps. Lagoon-side, sealing slows the algae by keeping water out of the stone, but it must be breathable so moisture from below can escape; film sealers fail fast here.

Sydney's largest concentration of mid-rise strata on the peninsula: 1960s to 1990s walk-ups along Howard and Oaks Avenues, beachfront towers on The Strand, the Pittwater Road high-rise precinct, and 1950s cottages on the Dee Why Parade slopes. We work around Dee Why Beach and the Strand, Dee Why Lagoon and Dee Why Head and the Long Reef aquatic reserve, on streets such as The Strand, Howard Avenue, Oaks Avenue and Pacific Parade.

Field note from Dee Why. Dee Why's 1970s walk-ups on Howard Avenue were built with painted concrete balconies and no drip grooves, so every balcony soffit goes black; cleaning them properly is a soft wash from a pole, not a pressure job from the balcony below. Nathan G, Founder

Run-off in Dee Why. This part of the peninsula drains to Dee Why Lagoon and Dee Why Beach. On every Dee Why stone sealing job the kerb inlets are bunded and rinse water is captured or sent to garden, as Northern Beaches Council requires.

In Dee Why we usually recommend stone sealing a re-seal every 3 to 5 years, and the cycle is written on the quote.

What is included

Every stone sealing job in Dee Why includes

Preparation clean 48 hours prior
Moisture test
Two coats of impregnating sealer
Colour-enhancing option
Care sheet and re-seal schedule
What we see in Dee Why

Dee Why surfaces and how we treat them

Painted concrete: biocide soft wash, rust remover on fixings, low-pressure rinse
Render: hypochlorite soft wash under 100 psi, rinse under 500 psi
Balcony tiles: soft wash of soffits, tiles cleaned and rinsed to the drain
Car park slabs: hot water, surface cleaner, vacuum recovery
Glass: pure water through carbon-fibre poles, frames and sills scrubbed first
Protecting the garden and drains during stone sealing in Dee Why
Our method in Dee Why

How we do it, and what we protect while we work

Sealing happens at least 48 hours after cleaning, once a moisture meter says the stone is dry. Sealer goes on with a low-pressure sprayer, is back-brushed into the surface, and a second coat follows when the product calls for it. Any excess is buffed off so no haze is left.

Breathable products only on sandstone and limestone
Excess removed to avoid haze
Pool and garden protected
Dry weather window confirmed
How it works

From your first message to the photo report

1

Tell us about it

Call or send the form with your suburb, the surfaces and what is bothering you. A few photos help us quote faster.
2

Fixed price within a day

We measure the property from aerial imagery, settle the method for each surface and send one written price with the guarantee on it.
3

Done and photographed

Your named technician protects the garden and drains, does the work and sends before-and-after photos that afternoon.
Who does the work

Your Dee Why stone sealing team

N
Nathan G
Founder & Lead Technician · 11 years in the trade

Nathan founded The Prestige Standard in 2015 after six years in heritage sandstone restoration. He scopes every substantial Northern Beaches job himself and still runs the soft-wash rig most weeks.

Nathan has scoped stone sealing across our Freshwater to Dee Why run, including Dee Why, North Curl Curl and Cromer.

Credentials: Working at Heights (RIIWHS204E), EWP Yellow Card (WP), Soft Wash Systems certified applicator, NSW Police Check and WWCC.

M
Marco Bellini
Stone & Sealing Specialist · 9 years

A former stonemason, Marco leads the division's sandstone, limestone and travertine work, including the soft, hand-cut Hawkesbury sandstone of the Pittwater slopes.

Credentials: Certificate III in Stonemasonry, Dry Treat and Aqua Mix applicator training, heritage masonry cleaning (ICOMOS Australia short course).

Before we quote Dee Why

What we check on the property

Run-off: this property drains to Dee Why Lagoon and Dee Why Beach, so kerb inlets are bunded and rinse water is captured or sent to garden
Dee Why Lagoon flood-planning area across the town centre
Coastal hazard mapping along The Strand
Long Reef Aquatic Reserve off Dee Why Head
Strata buildings: SWMS, resident notices and dated photo reports for the committee, run by Priya Nair

Written from our own Northern Beaches jobs and reviewed by Marco Bellini, Stone & Sealing Specialist. Last reviewed 1 November 2026. Council and hazard references checked against Northern Beaches Council and the NSW Planning Portal spatial viewer.

Our own job photos

Before and after: our stone sealing work

Real before-and-after photos from our own jobs, never stock. Left is how we found it, right is handover.

Full Gallery
Before and after: Sandstone Garden Steps Restored Before After
Sandstone Garden Steps Restored The orange and purple banding in the stone came back, the treads have grip again, and the stone surface was left whole.
Before and after: Moss and Algae Removed from Shaded Stone Steps Before After
Moss and Algae Removed from Shaded Stone Steps Clean stone, safe footing, and growth that is far slower to return.

What our clients say on Google

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

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

5.0-star rating on Google. Read all reviews.

Stone Sealing in Dee Why: your questions

Not answered here? Call 0494 810 609 or use the form and Nathan will reply personally.

Where we work

Stone Sealing in Dee Why: where we work

Dee Why 2099, on our Freshwater to Dee Why run. Same-day runs often include North Curl Curl, Cromer and Collaroy.

Book stone sealing in Dee Why

One fixed written price within a business day. If anything we quoted is not clean at handover, we come back within seven days and redo it free.

Get a fixed quote

Tell us about your Northern Beaches property

Four short questions, about a minute. Every Northern Beaches enquiry is read by Nathan, who measures the property from aerial imagery and replies with a fixed written price within one business day.

Fixed written price, no deposit
$20 million public liability
Most jobs booked within 7 to 10 days
Photo report the same day
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?

We reply within one business day. By contacting us you agree to our Terms of service and Privacy Policy.

Call 0494 810 609Request a Quote