Exposed Aggregate Concrete NSW 2026 - Get Free Quotes

Exposed Aggregate Concrete Costs in NSW

Exposed aggregate concrete is one of the most popular driveway and outdoor finishes in NSW because it pairs the structural durability of a poured slab with a textured, decorative surface that hides everyday marking and resists slipping when wet. The finish works by removing a thin layer of cement paste from the freshly poured slab to reveal the decorative aggregate sitting just beneath the surface, producing a finish that is bonded to the same concrete that gives the slab its load capacity. Pricing in NSW for 2026 typically lands between $85 and $140 per square metre for a straightforward driveway using locally sourced stone, rises to $130 to $190 for graded river pebble or basalt, and reaches $180 to $280 for premium aggregates and feature finishes. A typical Sydney three bedroom home with a 60 square metre driveway should budget around $9,000 to $12,000 for a quality exposed aggregate driveway with proper drainage, reinforcement, and sealing.

The gap between the cheapest and the most expensive exposed aggregate quote you will receive in NSW is rarely about the headline rate per square metre. It is more often about what is actually included beneath that rate. A $90 per square metre quote that covers excavation, 100 millimetres of compacted road base, F62 mesh, 25 MPa concrete, the exposure process, and one coat of acrylic sealer is genuinely competitive value. A $120 per square metre quote that omits sealing, uses a thinner crusher dust base instead of road base, supplies only fabric mesh ties without trench or perimeter beams, and treats edge formwork as an extra is the more expensive job. Reading three or more itemised quotes side by side is the single most useful step you can take. The hub page on general concreting services in NSW covers the broader category and is worth reading alongside this guide before you commission any specific concrete project.

What an Exposed Aggregate Concreting Job Includes in NSW

A complete exposed aggregate concreting job in NSW takes between two and four days on site for a typical residential driveway, depending on weather, slab size, and how much excavation is required. Day one usually covers site setup, demolition of any existing slab, excavation to subgrade, installation of any drainage or service penetrations, laying and compacting of road base, formwork, and placement of the steel reinforcement mesh on bar chairs. Day two is the pour, screed, float, and application of the chemical surface retarder. Day three involves returning to site to pressure wash the retarded surface, expose the aggregate, and clean up the slurry. The fourth visit, usually a week or more later once the slab is dry, is the application of the sealer.

The supply schedule for a typical job covers the road base or DGB20 sub-base material delivered in bulk to site, the mesh reinforcement in standard 6 by 2.4 metre sheets cut and tied on site, the concrete itself delivered by truck mixer from a local batching plant, the chemical surface retarder applied immediately after the slab is finished, and the sealer brought back for the final visit. For a 60 square metre driveway, you are looking at roughly four cubic metres of concrete supply, ten to twelve square metres of mesh, two to three cubic metres of road base after compaction, plus formwork timber, expansion joint material, and consumables. The slab thickness and reinforcement schedule are matters of structural design and should always reflect the loads the slab will actually carry. Sites carrying caravans, boat trailers, or work vehicles require thicker slabs and heavier mesh than a slab designed for two family cars, and an experienced concreter will ask about vehicle weights at the quote stage.

Beyond the slab itself, a properly scoped quote should include the disposal of spoil from excavation, the saw cutting of expansion joints to control shrinkage cracking, the formation of any drainage falls required to direct water away from the building, and the tying in of the new slab to existing surfaces such as garage thresholds, footpaths, or kerbs. Anything that the existing site doesn't already have, such as a stormwater connection or an agricultural drain along the back of a sloped slab, is an additional cost item that should be itemised on the quote rather than assumed. For sloped sites where saw cut expansion joints alone won't manage shrinkage, our concrete cutting guide covers diamond saw work for both new joints and remediation of older slabs.

Aggregate Types and Selection in NSW

The decorative aggregate is the visual heart of an exposed aggregate finish, and the choice of stone determines both the look and the unit price of the job. The most affordable option in NSW is locally sourced quarry stone, typically a 7 to 14 millimetre crushed bluestone or a similar local granite, which produces a uniform grey or charcoal finish well suited to modern homes and contemporary architectural styles. Graded river pebble, available from quarries across the Hunter and the Riverina, sits in the middle price band and produces a softer, rounder, more variegated surface with brown, cream, and grey tones that suits traditional brick and weatherboard homes. Premium aggregates including white quartz, dolomite, imported European stone, and specialty graded mixes are at the top of the range and produce statement finishes for high end residential and commercial projects.

Aggregate size matters as much as colour. Smaller aggregates of 7 to 10 millimetres produce a finely textured surface that is comfortable to walk on barefoot and is the standard choice for pool surrounds and entertaining areas. Medium aggregates of 10 to 14 millimetres are the workhorse driveway specification, balancing visual interest, slip resistance, and underfoot comfort. Larger aggregates of 14 to 20 millimetres produce a more rugged finish with deeper texture, well suited to rural driveways and steeper sloped sites where additional grip is valuable but where bare feet are not the priority. Mixing aggregate sizes within a single slab is also possible and produces a more naturalistic finish but requires careful specification to avoid an inconsistent visual result.

Sourcing is also worth thinking about before you commit. Locally sourced aggregates from quarries within an hour or two of your site keep costs down and the supply chain reliable. Imported and specialty aggregates require longer lead times, and the small quantities involved in a residential driveway are often supplied in pre packed bulka bags rather than truck loads, which carries an additional handling cost. Always ask your concreter to bring sample boards of the actual aggregate being supplied to your site rather than relying on photographs, because the way an aggregate looks in a brochure photograph and the way it looks on your driveway in afternoon sun on a coastal Sydney site are not always the same. For decorative finishes that don't rely on aggregate exposure at all, our stamped concrete guide covers patterned slabs that mimic stone, brick, or timber.

Surface Exposure Methods

There are three main techniques used in NSW to expose the decorative aggregate within a freshly poured concrete slab, and the choice between them affects both the appearance of the finished surface and the labour cost. The most common method, used on the overwhelming majority of NSW residential exposed aggregate jobs, is chemical retarder followed by pressure wash. The retarder is sprayed onto the freshly trowelled slab and prevents the cement paste in the top few millimetres from setting, while the concrete beneath cures normally. The next morning, the concreter returns to site, pressure washes the retarded paste away, and reveals a clean exposed aggregate finish in a single fast operation.

The second method is a straightforward water blast carried out a day or two after the pour, without the use of a retarder. This is more aggressive and more time consuming, requires a much higher pressure water blaster, and gives a slightly less consistent finish than the retarder method, but it avoids the chemicals and is favoured by some traditional concreters for smaller slabs. The third method is mechanical surface grinding, which uses a diamond grinder to abrade the cement paste away from the surface and reveal the aggregate. Grinding produces a flatter, more polished looking exposed surface but is slower and significantly more expensive. It is rarely used for new exposed aggregate driveways but is the standard remediation technique when an existing slab has been poorly exposed and needs to be rectified after the fact, and it links naturally to the work covered in our concrete grinding guide.

Whichever exposure method is used, timing is critical. Retarder applied too late will not penetrate enough of the surface paste to release the aggregate cleanly. Retarder applied too early can over expose the surface and leave aggregate sitting proud of the slab where it is vulnerable to dislodging. Pressure washing carried out before the underlying concrete has set sufficiently can dislodge stones from the matrix entirely. The window between pour and exposure in Sydney summer heat can be as short as twelve hours, while on a cool wet winter day in the Blue Mountains it can stretch to forty eight hours or more. An experienced concreter reads the slab on the morning of exposure rather than working to a fixed timetable, which is one of the reasons why concreting work cannot reasonably be project managed by anyone other than the trade themselves.

Sub-Base and Site Preparation

The most important single factor in whether an exposed aggregate slab is still flat and uncracked in twenty years' time has nothing to do with the visible aggregate finish. It is the quality of the sub-base beneath the slab. Clay subgrades across much of Sydney, the Hawkesbury, and the Hills District are reactive, meaning they swell and shrink with moisture content, and a slab placed directly on poorly compacted clay will move with the soil and crack predictably. Sandy subgrades along the Northern Beaches and parts of the Central Coast are less reactive but can be loose and require careful compaction to avoid settlement. Limestone and shale country across western Sydney needs careful assessment for both bearing capacity and drainage.

The standard NSW residential driveway sub-base specification is 100 to 150 millimetres of compacted DGB20 road base over a properly excavated and compacted subgrade. The road base is delivered to site in bulk, spread by hand or with a small bobcat, watered to optimal moisture content, and compacted with a vibrating plate compactor or small roller. A site that has been excavated to depth and the subgrade tested for firmness will compact predictably; a site where the topsoil has simply been graded off and the road base spread on top of soft fill will give variable results that can affect the slab for its entire service life. The few hundred dollars saved by skimping on sub-base depth is among the most expensive savings a homeowner can make on a concreting job.

Drainage falls and tie ins are the other element of site preparation that pays for itself many times over. A driveway should fall away from the house at a minimum of 1 in 100, ideally 1 in 80, with surface water directed to a stormwater pit, an agricultural drain along the lower edge, or a council kerb where one is available. Pool surrounds need fall away from the pool coping to avoid pooling water at the waterline. Pathways need cross fall to clear water from the surface. Anything resembling a level or ponding fall is a defect waiting to happen, and a competent concreter will set strings and string lines during formwork to confirm the falls are right before the pour begins. For sites where an existing slab has settlement issues that are causing falls to direct water back towards a building, our concrete repair guide covers the rectification options including underpinning, slabjacking, and full replacement.

Reinforcement and Slab Thickness

Steel reinforcement mesh in a residential exposed aggregate slab serves two purposes. The first is to control shrinkage cracking as the concrete cures and dries over the weeks and months following the pour. The second is to bridge any minor settlement of the sub-base and keep the slab acting as a single structural unit rather than allowing it to break into separate fragments. The standard residential driveway mesh specification in NSW is F62 trench mesh or SL72 sheet mesh, both supplied in 6 by 2.4 metre sheets to BlueScope Steel and Liberty OneSteel specifications under Australian Standard AS 3600 for concrete structures. The mesh is laid on bar chairs to position it in the upper third of the slab thickness, where it does the most useful work resisting tension at the slab surface.

Slab thickness should match the loads the slab will carry. A 100 millimetre slab with F62 mesh is the standard residential driveway specification suitable for two car households driving sedans, hatches, and standard dual cab utes. A 125 millimetre slab with SL82 mesh is appropriate for households running heavier vehicles, occasional caravan or boat trailer access, or where the slab will need to bear an occasional concrete pump or removalist truck. A 150 millimetre slab with SL92 mesh or two layers of F72 is the rural and industrial specification for trucks, tractors, and farm equipment. Specifying a thinner slab to save on concrete cost is one of the most common shortcuts taken by underpriced quotes and produces a slab that cracks within a few years under loads it was never designed to carry.

Concrete strength is also a structural choice. The NSW residential driveway standard is 25 MPa supplied to Australian Standard AS 1379 specifications by Boral, Holcim, Hymix, Adbri, or another major supplier. Higher strengths of 32 MPa and 40 MPa are appropriate for heavy duty applications, exposed coastal locations within a few hundred metres of the surf, and slabs subject to chemical exposure. Low slump high strength concrete with a 19 millimetre or 14 millimetre maximum aggregate is the typical specification for exposed aggregate work to ensure the decorative stone is well bonded and supported at the surface. Air entrained mixes are appropriate for slabs in the Snowy Mountains and other parts of NSW that experience freeze thaw cycles, but are unnecessary in coastal and inland Sydney where ground temperatures rarely fall low enough to be a concern. Our concrete slab guide covers slab design and pour scheduling in greater detail for projects beyond decorative driveways.

Slip Resistance and AS 4586

Slip resistance is one of the genuine strengths of an exposed aggregate finish and is also one of the requirements that NSW councils and certifiers will look at most closely on pool surrounds, ramps, and accessible pathways. The Australian Standard governing slip resistance of pedestrian surfaces is AS 4586, which classifies finishes from P0 (least slip resistant) through to P5 (most slip resistant) based on a pendulum test conducted on a wet surface. Pool surrounds, public ramps, and accessible pathways require a P4 or P5 rating, while general residential pathways and patios are typically required to meet P3 or higher. A properly executed exposed aggregate finish using 7 to 14 millimetre aggregate will comfortably exceed P4 in independent testing and will hold that rating for the life of the slab provided the surface is not over sealed.

The most common cause of an exposed aggregate slab failing a slip resistance test is over application of sealer. Acrylic and polyurethane sealers fill the surface texture, reduce the friction coefficient, and can drop a P4 rated surface to P2 or even P1 if applied in multiple heavy coats. The correct sealer specification for slip resistance is a single coat of penetrating acrylic or silane based sealer that protects the cement matrix without filling the texture between aggregates, applied at the manufacturer's recommended coverage rate using a roller or sprayer rather than a brush. For pool surrounds in particular, use a sealer specifically marketed as slip resistant, with anti slip additives where the surface texture alone is not sufficient. Our concrete sealing guide covers the full range of sealer options, application rates, and reapplication intervals across NSW conditions.

Slip resistance is not just an issue at the time of the original installation. Over time, an exposed aggregate surface gradually fills with dust, organic debris, algae, and the residue from years of foot traffic, all of which reduce the effective slip resistance of the surface. Annual high pressure washing combined with periodic resealing maintains the slip resistance of the surface for the life of the slab. Pool surrounds, in particular, should be assessed for slip resistance every two to three years and pressure washed and resealed where the surface has lost texture. Our concrete pool surrounds guide covers the additional NSW pool fencing, depth marker, and BCA accessibility requirements that apply to wet area installations alongside the slip resistance specification. The cost of a slip and fall incident on a pool surround that has not been properly maintained is substantial, and the maintenance cost of preventing it is modest by comparison.

Curing Exposed Aggregate Concrete in NSW Conditions

Curing is the chemical process by which freshly placed concrete gains strength as the cement reacts with water over a period of days and weeks. A slab that loses moisture too quickly during the first 7 days of curing will not develop full design strength and will be more prone to surface cracking, dusting, and reduced wear resistance over its lifetime. NSW conditions present a particular challenge for curing because Sydney summers can reach 40 degrees with low humidity and strong winds, while winter pours in the Southern Highlands and Blue Mountains can encounter overnight temperatures well below the minimum recommended for concrete placement.

The standard curing approach for exposed aggregate slabs in NSW summer conditions is to apply a curing compound or wet hessian covering immediately after the surface has been retarded and the retarder is no longer susceptible to displacement. Curing compound is sprayed onto the surface and forms a film that retains moisture in the slab during the critical first few days. Wet hessian is the traditional alternative and works well but requires daily rewetting which is logistically harder for residential sites where the homeowner is at work during the day. Plastic sheeting is a poor substitute because it can cause condensation marks on the finished surface and is no longer considered best practice by most experienced concreters. Cold weather pours below 5 degrees overnight require either curing blankets or a delay until conditions improve, and reputable concreters will postpone a winter pour rather than place concrete that will not cure correctly.

Beyond the curing period, the slab continues to gain strength for months and reaches close to its design strength at 28 days. Vehicle traffic should be kept off a residential driveway for at least 7 days after the pour, with heavier vehicles such as removalists, concrete pumps, and trucks kept off until day 28. Sealing should be carried out only after the slab has fully dried, which in NSW summer conditions is typically 14 to 21 days after the pour, and in winter or following rain can be 28 days or longer. A slab sealed before it has dried adequately will trap moisture beneath the sealer and produce a hazy or whitened finish that is hard to rectify. The NSW Fair Trading guidance on home building defects identifies premature sealing as a recurring source of homeowner complaints and is one of the key reasons reputable concreters return to site for the seal coat as a separate visit rather than rushing it within the same week as the pour.

NSW Licensing and Council Approvals

Concreting work valued above $5,000 in NSW must be performed by a contractor holding a current building licence under the Home Building Act 1989, administered by NSW Fair Trading. The relevant licence category is structural landscaping or builder, and contractors should be able to provide a licence number that you can verify on the public NSW Fair Trading licence check before signing a contract. Engaging an unlicensed contractor for work above the threshold removes most of your statutory protections under the Home Building Compensation Fund and exposes you to significant risk if the work is defective or the contractor disappears mid project. The protections are real and worth taking seriously, particularly given that exposed aggregate driveways for an average Sydney property comfortably exceed the $5,000 threshold.

Most residential exposed aggregate work falls within the exempt development provisions of the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 and does not require a development application. The key conditions are that the slab does not exceed maximum impervious area limits set by the local council, does not encroach on easements, does not interfere with existing trees protected under a tree preservation order, and meets the setback requirements of the relevant Local Environmental Plan. Heritage listed properties and properties within heritage conservation areas across the inner west, eastern suburbs, North Shore, and parts of regional NSW have additional requirements and may require a development application even for work that would otherwise be exempt. The Service NSW portal provides access to council planning information and the relevant LEP for any NSW property.

Driveway crossings, where the new driveway connects to a council road, are a separate matter that requires a vehicle crossing application from the local council in addition to any licensing for the driveway slab itself. Council requirements for vehicle crossings vary considerably across NSW, but typically require a specific concrete grade, a specified profile across the kerb, and inspection by a council officer before sign off. Some councils require the crossing to be installed by a contractor on their approved list, which is a separate concrete job from the residential driveway behind it. Coordinating the council crossing with the broader driveway pour is something a licensed local concreter will manage as part of their normal workflow. For cases where an existing damaged or non compliant crossing needs to be removed before the new one can be poured, our concrete removal guide covers the demolition options and disposal logistics.

Exposed Aggregate Concrete Costs Across Sydney

Sydney pricing for exposed aggregate work reflects three main factors: the density of competing concrete suppliers and concreters in the local area, the typical complexity of sites in different parts of the city, and the access challenges associated with terrace housing, narrow lanes, and steep blocks. Inner city work is generally more expensive because of access difficulty, the higher proportion of demolition required to remove existing slabs, and the heritage and council approval overhead in many suburbs. Western Sydney work is generally less expensive because new build sites are simpler, access is straightforward, and there is more competition among concreters working within the major release area corridors.

Inner west and eastern suburbs sites carry premiums for several specific reasons. Many properties are on terrace lots with rear lane access where the only way to get a concrete truck within reach of the slab is through a tight laneway or via a pump set up on the street. Heritage conservation areas across Paddington, Surry Hills, Newtown, Glebe, and Balmain limit the amount of impervious surface that can be added to a site and frequently require council approval even for replacement of an existing slab. Excavation in older inner city sites regularly encounters fill, old footings, buried sewer lines, or asbestos contaminated soil, all of which add to the disposal cost. Concreters working across the inner Sydney market price for the average site complexity rather than the simple ones, which is why headline rates per square metre tend to be 15 to 25 percent above western Sydney equivalents. For projects where the driveway is the entire scope and a broader concreting service is not required, our concrete driveway guide covers the residential driveway specifications, council crossing requirements, and pricing factors specific to driveway only briefs.

Western Sydney and the Hills District in contrast offer the easiest working conditions in the metropolitan area. Most sites have front street access for concrete trucks, demolition work is rare on new build sites, and council requirements are well established and straightforward. Concreters in these zones can often turn around an exposed aggregate driveway from quote acceptance to seal coat in three to four weeks, compared with six to ten weeks for an inner city site with heritage approval requirements. Decorative coloured concrete options pair particularly well with exposed aggregate finishes and are popular across the Hills new build market; our coloured concrete guide covers the integral colour and topical staining options available across NSW.

Exposed Aggregate Concrete Costs in Regional NSW

Regional NSW pricing for exposed aggregate work is generally 10 to 25 percent below Sydney pricing for comparable work, reflecting lower labour rates, simpler site access on most rural and regional residential properties, and lower compliance overhead. Regional jobs do however carry their own cost factors including travel time for concrete trucks from the nearest batching plant, smaller pour volumes that can attract minimum charge premiums from suppliers, and a smaller pool of contractors which in some areas reduces price competition.

Coastal regional NSW pricing across the Mid North Coast and Northern Rivers is somewhat higher than inland regional pricing. Several factors drive this. Coastal sites within a few hundred metres of the surf require higher concrete strength, often 32 MPa rather than the inland standard of 25 MPa, to resist chloride attack from airborne salt. Many coastal blocks are sloped and require additional formwork, retaining, or stepping of the slab to accommodate the grade. Concreting demand across Byron Bay, Lennox Head, and Ballina has run ahead of contractor supply for several years, and the resulting market dynamics keep prices elevated relative to comparable work further inland. Sloped sites that require retaining work alongside the new slab are common across the Northern Rivers and our concrete pumping guide covers the placement options for sites where direct truck access is not feasible.

Inland regional NSW including the Central West, the New England, and the Riverina presents the most affordable pricing for exposed aggregate work in the state. Sites are generally larger, access is straightforward, sub-bases are well drained, and concrete is supplied from local Boral, Holcim, or Hanson plants in regional centres including Dubbo, Tamworth, Wagga Wagga, and Albury. The main cost factor for very rural properties is travel time for the concrete truck from the nearest plant, which can add $200 to $600 to a pour if the property is more than 45 minutes from the nearest batching plant. For very remote sites, mobile batching options are available but typically only justify the call out for larger jobs above 100 square metres.

What to Look For in an Exposed Aggregate Concrete Quote

A quality exposed aggregate quote in NSW is a multi page document that itemises every component of the job and the basis for each cost rather than presenting a single lump sum. The quote should specify the slab area in square metres, the slab thickness in millimetres, the concrete grade in megapascals, the mesh specification, the aggregate supplier and product code, the exposure method, the sealer brand and number of coats, and the inclusions and exclusions for excavation, formwork, drainage, joint cutting, and disposal. Any quote that arrives as a one line total without these items spelled out is incomplete and should be sent back with a request for itemisation. Multiple quotes presented in directly comparable form are also far easier to evaluate than three quotes in three different formats.

Reference checks are non negotiable for any concreting job above $10,000 and worthwhile for smaller jobs as well. Ask each prospective concreter for the addresses of three exposed aggregate driveways they have completed in the past two years that you can drive past and inspect from the street. Look at edge condition, joint condition, surface texture consistency, and any signs of cracking or staining. Ask the concreter to put you in touch with one or two of those previous customers for a phone reference. Concreters who are confident in their work history will provide this readily; those who are evasive about previous work are revealing something worth taking seriously. The NSW Fair Trading licence check should always be a parallel step.

Payment terms in a residential concreting contract in NSW must comply with the Home Building Act 1989. The maximum deposit for residential building work is 10 percent of the total contract value where the contract value is above $20,000, and 20 percent for contracts below that threshold. Progress payments must be tied to defined stages of the work rather than time based instalments. A concreter who insists on 50 percent upfront, demands cash payment for a discount, or refuses to provide a written contract is operating outside the legal framework and should be declined regardless of how attractive the headline price appears. The contract should also include the manufacturer's warranty period for the sealer (typically two to five years), the contractor's workmanship warranty (six years for major defects under the Home Building Act), and the process for raising any defects during the warranty period.

Sealing and Ongoing Maintenance

Sealing is the single most important ongoing maintenance task for an exposed aggregate slab and is what determines whether the surface still looks fresh in fifteen years' time or whether it has weathered to a flat, dirty grey by the five year mark. The first sealer application is typically included in the original installation contract as a single coat of acrylic or silane sealer applied two to four weeks after the pour once the slab has fully dried. This first coat is the foundation of the slab's long term appearance and should not be skipped under any circumstances. Resealing intervals vary depending on the sealer type, the slab exposure, and the level of foot and vehicle traffic, but a typical residential exposed aggregate driveway in NSW needs resealing every two to four years for an acrylic sealer or every five to seven years for a higher specification polyurethane or silane sealer.

Routine maintenance between seal coats is straightforward. Sweep the slab regularly to prevent organic debris from building up at edges and in joints where it can stain the surface. Pressure wash the slab annually with a domestic pressure washer at moderate pressure, or every six months for slabs heavily exposed to leaf drop, bird activity, or vehicle traffic. Treat oil and fuel spills promptly with a degreasing detergent and pressure wash before the stain has had time to penetrate the sealer. Avoid using strong acid based cleaners which can etch the sealer, and avoid metal bristled brushes which can scratch both the sealer and the aggregate. Slab contamination from rust marks left by garden furniture, planter pots, or vehicles dripping coolant requires specialist rust removal products available from major hardware suppliers including Bunnings.

Surface defects that emerge over time including hairline cracking, sealer wear, isolated stains, or missing aggregate at edges can usually be remediated rather than requiring full slab replacement. Hairline shrinkage cracks are normal in any concrete slab and can be filled with a colour matched concrete crack sealer to prevent water ingress. Sealer wear is rectified by stripping the existing sealer and reapplying a fresh coat. Edge spalling and aggregate loss can be patched with an exposed aggregate repair mortar matched to the original aggregate. Where the surface has weathered beyond cosmetic repair, our concrete resurfacing guide covers the overlay options including new exposed aggregate or alternative finish overlays applied over the existing slab. For slabs with structural cracking caused by sub-base settlement or movement, replacement is usually the more economical long term option, and our concrete removal guide covers the demolition logistics. Post your exposed aggregate concreting project on The Quote Yard to connect with licensed NSW concreters across Sydney, Newcastle, Wollongong, the Central Coast, the Hunter, and regional New South Wales for new driveways, pool surrounds, pathways, patios, repairs, and resurfacing. The Australian Competition and Consumer Commission publishes guidance on residential building contracts and consumer rights that applies to all NSW concreting work.