HarbourlineGroup
Geostone exposed aggregate backyard and benchtop in Burraneer NSW

Decorative / Architectural Concrete

Decorative concrete transforms a plain slab into a unique feature. With exposed aggregate, polished, honed and burnished finishes, it lifts the look and value of your property while being built to last — a hallmark of luxury homes.

Decorative concrete transforms a plain slab into a unique feature. With exposed aggregate, polished, honed and burnished finishes, it lifts the look and value of your property while being built to last — a hallmark of luxury homes.

The finishes

Exposed aggregate, honed, polished and burnished concrete, chosen to suit your home and budget.

Approved installer

We're an approved installer of Geostone Holcim, so your exposed aggregate is laid and finished to the manufacturer's standard.

10+
Years of experience
5.0★★★★★
From 25 Google reviews
Sydney Wide
Service area
Geostone
Approved installer · Holcim
Licensed & Insured
Public liability cover

What's included

What decorative / architectural concrete covers

Exposed aggregate

Stones revealed in the surface for a textured, hard-wearing, high-end decorative finish.

Polished & honed concrete

Smooth, modern floors and surfaces with a subtle sheen, ideal for alfresco areas and interiors.

Architectural floating steps

Cantilevered concrete steps that create a clean, contemporary entrance or level change.

Feature slabs & benchtops

Bespoke concrete benchtops, hearths and feature slabs finished to your design.

Concrete & landscape packages

We can package your concrete work with the surrounding landscaping, like floating steps or a driveway finished together with the landscaping around it — cheaper and more hassle-free than coordinating separate trades.

Outdoor features

Custom curved bench seats, fire places, stepping stones and more. We build all formwork in situ, so we're not limited to standard shapes — any size, dimension or shape can be built to your design.

What decorative concreting is

Decorative concreting is any concrete finished to look like a feature rather than a plain grey slab. The most popular is exposed aggregate, where the top layer of cement is washed back to reveal the stones set in the concrete, giving a textured, hard-wearing surface that suits driveways, paths and pool surrounds. See our full exposed aggregate pricing breakdown for real per square metre rates and what moves the price. Polished and honed finishes create a smoother, modern look for alfresco areas and interiors, and architectural floating steps add a clean, contemporary entrance — see how architectural and decorative concreting differ if you’re not sure which term applies to your job. If you’re weighing it up against a plain or coloured driveway, see our driveway options comparison.

The Geostone process

As an approved installer of Geostone Holcim, a typical residential job takes 4 to 6 days, laid and finished to the manufacturer’s standard:

  • Days 1–2: Preparation. Excavation, site prep, steel fixing and formwork.
  • Days 3–4: Pour and wash. The concrete is poured, then the top layer is washed back to expose the aggregate.
  • Days 5–6: Acid wash and seal. The surface is acid washed, then finished with a penetrating sealer that lasts 5 to 10 years (less on high-traffic driveways). On driveways or slabs with a big slope, we also add a non-slip additive to boost the grip.

You can read more about our Geostone approved installer accreditation and see the jobs we’ve completed with it.

Choosing the right finish

The best finish depends on where it’s going, how much traffic it gets and the look you’re after. When we come to quote, we bring a range of exposed aggregate samples with us so you can see and touch each mix and picture how it’ll look laid in your driveway, path or backyard. Not sure what it’ll cost? See our exposed aggregate cost guide for real prices, or our driveway options comparison if you’re still deciding between finishes.

Exposed aggregate concrete driveway with a smooth decorative finish in Kellyville NSW

What we handle

What's included

A clear picture of what this service covers.

What we do

  • Exposed aggregate driveways, paths and pool surrounds
  • Honed and polished concrete floors and alfresco areas
  • Burnished interior concrete floors
  • Architectural floating and cantilevered steps
  • Concrete benchtops and feature slabs
  • Custom curved bench seats
  • Fire places
  • Stepping stones
  • Concrete and landscape packages
  • Colour, stone and finish selection guidance
  • Cutting, sealing and final finishing

Recent work

The kind of jobs we do

Real examples of the work this service covers across Sydney.

01

Pool surrounds

02

Concrete benchtops

03

Decorative driveways

04

Bench seats

05

Floating steps

06

Stepping stones

07

Fire pits

08

Exposed aggregate driveway with floating entry steps

09

Geostone exposed aggregate pool surround

10

Polished concrete alfresco with matching benchtop

11

Decorative side path and council footpath

12

Topping slabs

13

Polished concrete

14

Honed pool surround

15

Curved bench seats

16

BBQ benchtops

17

Concrete window sills

18

Burnished concrete

19

Mechanical polishing

20

Concrete honing

Why us

Why choose Harbourline Group

All formwork built in situ

Every formwork is custom-built on site, not a standard mould, so any size, dimension or shape is possible — from curved bench seats to one-off feature pieces.

Approved Geostone installer

One of the few Sydney installers officially accredited by Geostone Holcim — not just familiar with the product, certified to lay and finish it to spec.

10+ years across Sydney

A decade of decorative work in residential and commercial properties, Sydney wide.

Rated 5.0 on Google

A track record of clean finishes and jobs done hassle-free, from quote to final pour.

Backed by a workmanship warranty

We back our work with a 10 year workmanship warranty, and carry public liability insurance on every job.

Common questions

Decorative / Architectural Concrete questions

01Are you licensed and insured?
Yes, we're fully licensed and carry public liability insurance. We don't publish our licence and insurance details online for privacy, but we're happy to provide them once your job is booked.
02Do you offer a warranty on your work?
Yes, we back our work with a 10 year workmanship warranty.
03Do you do landscaping as well as concrete?
Yes, we offer concrete and landscape packages. We've done jobs where we've handled floating steps and the surrounding landscaping, or a driveway and the landscaping around it, all as one job. It works out cheaper for you and more hassle-free, since we handle everything from A to Z instead of you coordinating separate trades. We're also a member of The Landscape Association.
04How much does exposed aggregate concrete cost in Sydney?
Geostone concrete mixes alone run from about $600 to $1,250 (+GST) per cubic metre of concrete supply, depending on the mix — brighter, creamier colours like Casa, Blanca and Tuscan cost more. For the finished job, our price per square metre starts from around $260+, depending on the size of the job, steel specs, site access, which Geostone mix you choose, and the type of finish and detail involved. We'll give you a firm figure after a look at the job.
05Is exposed aggregate slippery?
No. The exposed stones give it natural grip, which is why it's a popular choice for driveways, paths and pool surrounds. A penetrating sealer keeps it looking good without making it slick. On driveways or slabs with a big slope, we add a non-slip additive (crushed glass) to increase the slip resistance further.
06Is honed and polished concrete slippery?
No, they are not slippery as we add a non-slip additive that brings the slip resistance grade similar to that of exposed aggregate. Polished concrete is for indoor use only, while honed concrete has a higher slip resistance rating and is suited to outdoor use.
07How long does a decorative concrete job take?
A typical residential job takes 4 to 6 days. The first two days are preparation — excavation, site prep, steel fixing and formwork. Day 3 and 4 are the pour and washing of the exposed aggregate, and day 5 and 6 are acid washing and sealing.
08Do you help choose the stone and colour?
Yes. We bring a range of exposed aggregate samples with us when we come to site to give you a quote, so you can physically see and touch each mix and picture what it'll look like laid in your driveway, path or backyard.
09Do you seal the finished concrete?
Yes, we finish and seal every decorative job with a penetrating sealer, which lasts 5 to 10 years before it needs re-doing. For driveways, that lifespan can vary depending on how much traffic it gets. We'll let you know when it's due for a re-seal down the track.

Get a free quote

Let’s turn your vision into reality!

At Harbourline Group, we stay in constant communication with our customers until the job is done. To get a free quote, or if you have questions or special requests, just drop us a line. Most quotes are sent back within 48 hours, guaranteed.

Get a Free Quote

What kind of work do you need?

Most quotes sent within 48 hours — guaranteed.

Choose the type of work