Coloured Concrete SA 2026 - Pigments, Finishes, Colour Stability in the SA Climate, and How to Get Lasting Results

Coloured Concrete in South Australia

Coloured concrete is one of the most popular decorative concrete choices in Adelaide and across SA, offering homeowners a way to coordinate outdoor concrete surfaces with the home's exterior palette without the cost and maintenance demands of natural stone or imported pavers. The appeal is practical as well as aesthetic: integral coloured concrete carries its colour throughout the full slab depth, meaning surface wear does not expose a differently coloured substrate below, and the colour is part of the concrete matrix rather than a surface coating that can be scratched off or worn through by foot and vehicle traffic. Our stamped concrete SA guide covers the full stamped concrete process including the colour hardener and release agent system used alongside integral pigment. Our polished concrete SA guide covers integral pigment options for SA polished floors where colour is incorporated into the concrete rather than applied as a surface coating.

The SA coloured concrete market is mature and well-served by a number of experienced Adelaide decorative concrete contractors who have developed specific expertise in managing the demanding SA placement conditions. SA's combination of intense UV radiation, extreme summer temperatures, low relative humidity, and strong seasonal northerly winds creates more challenging placement conditions for coloured concrete than most other Australian cities, and the long-term appearance of coloured concrete in the SA outdoor environment is more sensitive to curing quality, sealer specification, and maintenance schedule than is sometimes apparent in the day-of-pour result. Our concrete resurfacing SA guide covers overlay systems that can introduce new colour to existing SA concrete without full demolition and replacement. Our concrete repairs SA guide covers colour-matched repair options for SA coloured concrete surfaces cracked by reactive clay movement.

Understanding the specific requirements of coloured concrete in the SA context, before choosing a colour and engaging a contractor, means SA homeowners can make informed decisions about pigment type, finish, sealer, and maintenance that produce genuinely lasting results rather than colours that look vibrant on day one and washed-out by year five. The core quality decisions for SA coloured concrete are simpler than the range of products and services in the market might suggest: iron oxide pigments are the correct choice for UV stability; polyurethane sealers outperform acrylics in SA UV conditions; and curing quality has a larger effect on colour uniformity and vibrancy than any other single variable in the placement process. For old SA coloured concrete beyond repair or resurfacing, our concrete demolition SA guide covers the removal and recycling process. The reactive soil footing design beneath coloured concrete is the same as for any SA outdoor concrete; our concrete footings SA guide covers the specification.

Pigment Types and UV Stability for SA Coloured Concrete

The pigment used to colour concrete for outdoor SA applications must be UV-stable. This is not a preference or a premium specification choice: it is the minimum requirement for any outdoor coloured concrete in SA's solar radiation environment. Pigments that are not UV-stable will fade, bleach, or shift colour within a few years of exposure, and no amount of re-sealing will restore colour that has been degraded at the molecular level by UV breakdown of the pigment compound.

Iron oxide pigments are the industry standard for UV-stable coloured concrete in Australian outdoor applications, and they are the pigment type that all reputable SA coloured concrete contractors use for outdoor work. Iron oxide pigments derive their colour from the crystal structure of iron oxide compounds: yellow ochre from goethite, red from haematite, brown from a mixture of iron oxides, and black from magnetite or carbon black. These mineral pigments are stable under UV because their colour is a function of their crystal structure, not of organic dye molecules that break down under radiation. When an SA coloured concrete driveway fades or patches unevenly after a few years, it is almost always because the sealer has failed rather than the pigment itself, as the iron oxide colours are genuinely durable in the SA environment when properly sealed and maintained.

The iron oxide pigment range does have limitations that SA customers should understand before selecting a colour. The warm spectrum, covering red, orange, brown, ochre, yellow, and tan tones, is where iron oxide pigments are at their most vibrant and consistent. Cool tones including blue, green, and purple cannot be produced with iron oxide pigments alone and require other pigment types that are less UV-stable. A SA coloured concrete contractor who proposes a bright blue or vivid green concrete using standard iron oxide pigments is misinforming the customer; achieving these colours requires specialist pigment systems that carry increased risk of colour shift in the SA outdoor environment. For SA outdoor concrete, the honest advice is that warm tones are the reliable territory for long-lasting colour, and cool tones should be approached with realistic expectations about colour stability over a five to ten year outdoor life in the SA climate.

The dosage rate of iron oxide pigment in the concrete mix determines the intensity of the colour in the finished surface. Pigment is typically added at one to five percent of the cement weight, with higher dosages producing more intense colour at correspondingly higher cost. There is a practical upper limit: above approximately five percent pigment loading, the additional pigment does not significantly deepen the colour and may begin to affect the concrete's workability and strength. SA ready-mix concrete suppliers including Boral, Holcim, and Hanson can add iron oxide pigment to the concrete at the batching plant before delivery, or the pigment can be added on-site by the concreter during the pour in powder or liquid form. Pre-batched pigment from the plant produces more consistent colour distribution than on-site addition, which is the recommended approach for SA coloured concrete where colour consistency across the full slab is a priority.

SA Colour Palette - What Works in the Adelaide Climate

Selecting a coloured concrete shade that performs well in the SA climate requires considering two factors beyond simple visual preference: thermal performance and colour change under weathering. Both are specific to SA conditions and affect the long-term satisfaction with the colour choice in ways that are not always apparent from colour chips or small sample pours in a controlled environment.

Thermal performance matters most for SA pool surrounds, patio surfaces, and any coloured concrete that will be used in bare feet or where people sit directly on the surface during Adelaide's summer. Dark-coloured concrete absorbs more solar radiation than light-coloured concrete, reaching higher surface temperatures on hot summer days. A charcoal or dark brown coloured concrete patio in full western afternoon sun on a 40-degree Adelaide January day will be substantially hotter underfoot than a buff or cream coloured surface of the same specification. Our concrete pool surrounds SA guide covers the thermal performance of different colour choices in detail for pool areas, but the same principle applies to any SA outdoor coloured concrete in full sun exposure. For SA outdoor entertaining areas and pool surrounds, specifying lighter pigment tones in the cream, buff, sandstone, and light grey range provides a meaningful thermal comfort advantage over darker shades in the peak summer months.

The most popular coloured concrete colours for Adelaide residential projects, as evidenced by the work portfolios of established SA decorative concrete contractors, cluster around the warm neutral palette: sandy buff, terracotta, light ochre, caramel, and a warm mid-brown tone that complements the red brick exterior common in established Adelaide suburban homes. These warm tones suit the Australian garden aesthetic, complement natural timber and rendered exterior materials, and perform well in the SA UV environment. The terracotta and ochre palette of many Norwood, Unley, and Prospect homes with original 1920s and 1930s character elements is particularly well-matched by warm iron oxide pigmented concrete for driveways and front path work, creating a cohesive visual connection between the building materials and the ground plane. For contemporary SA homes in newer developments including Seaford, Aldinga Beach, and Angle Vale, cooler charcoal and mid-grey coloured concrete has grown in popularity, and while these cooler tones can be achieved with specialist pigment systems, the natural warm range of iron oxide pigments covers a range of grey-brown and charcoal tones that satisfy most contemporary palette requirements within the UV-stable iron oxide family. Our concrete paths SA guide covers coloured and decorative finish options for SA residential paths.

Colour change under weathering is a natural process for any concrete surface in the SA climate, and managing realistic expectations about this is part of the honest conversation between a SA coloured concrete contractor and their customer. Fresh integral coloured concrete has a colour intensity and sheen from the initial sealer that diminishes as the sealer weathers and the concrete surface carbonates over the first year or two. The colour does not disappear, but it typically settles to a more muted version of the fresh-pour appearance. This weathered appearance is not failure: it is the natural maturation of the surface, and it can be substantially refreshed by re-sealing with a good quality UV-stabilised polyurethane sealer. SA homeowners who are shown a reference job from a coloured concrete contractor should ask how old the pour is: a three-year-old job that looks well-maintained and colour-consistent after three SA summers is a more meaningful quality reference than a job that was completed last month and still has its fresh sealer sheen.

Why Curing Has a Larger Effect on Coloured Concrete Than Plain Concrete in SA

Curing is critical for all concrete, but it has an amplified effect on coloured concrete. The colour vibrancy and uniformity of integral coloured concrete is directly linked to the water-to-cement ratio and the degree of hydration achieved during the curing period. In SA summer conditions, the rapid surface evaporation that occurs if the concrete is not adequately protected after finishing strips moisture from the concrete surface before adequate hydration is achieved, producing a lighter, more mottled surface colour than would result from correct curing. This surface colour variation from inadequate curing is not simply aesthetic: it reflects genuinely weaker surface concrete that will be more susceptible to wear, staining, and carbonation over time.

The specific curing challenge for coloured concrete in SA summer is that the evaporation retarder spray and curing compound applied after finishing must be compatible with the pigment and the subsequent sealer. Some curing compounds leave a residue on the concrete surface that affects the adhesion of the sealer applied after the curing period, producing delamination or uneven sheen in the finished surface. A SA coloured concrete contractor who uses curing products without confirming their compatibility with the sealer they intend to apply is risking a sealer application failure that is expensive to correct. The industry practice is to confirm the curing-sealer system compatibility from the same supplier, or to verify compatibility between products from different suppliers before the pour rather than discovering an incompatibility problem during sealer application.

Wet hessian curing over a coloured concrete slab requires care to avoid hessian texture being impressed into the surface of the fresh concrete, and to ensure that the hessian does not sit unevenly in some areas and produce colour variation from differential curing rates across the surface. For large SA coloured concrete pours, a plastic sheeting membrane over the curing compound is often used instead of hessian, providing a non-contact moisture barrier that produces more uniform curing across the full slab area. The minimum curing period for coloured concrete in SA is seven days, with fourteen days producing better colour uniformity and surface strength. SA homeowners who are told that their coloured concrete is ready to traffic and seal in three days should ask specifically what curing method was used and whether the minimum standard period has been met, because short-cutting curing is one of the most direct ways to compromise the colour result.

Sealer Selection for SA Coloured Concrete

The sealer choice for SA coloured concrete is the decision that most directly determines the long-term appearance of the surface in the SA outdoor environment, and it is the decision that is most frequently made incorrectly by contractors who default to acrylic sealers because they are cheaper and easier to apply than polyurethane systems.

Acrylic sealers are water-based or solvent-based polymer solutions that form a protective film on the concrete surface. They are relatively inexpensive, apply easily, and produce a wet-look gloss that makes colours appear vivid immediately after application. In SA's high-UV environment, however, acrylic sealers typically begin to chalk, yellow, or lose adhesion within two to three years of outdoor exposure, requiring re-sealing at that interval to maintain the colour appearance. When an acrylic sealer fails, the concrete beneath it is briefly unprotected until re-sealing, during which time it is more susceptible to staining from oil, vehicle fluids, and garden chemicals. Frequent re-sealing also accumulates sealer layer thickness over multiple applications, eventually producing a cloudy or patchy surface that must be stripped before fresh sealer can be applied effectively.

Water-based and solvent-based polyurethane sealers provide significantly better UV resistance than acrylic sealers in the SA outdoor environment. Polyurethanes form a denser, harder-wearing surface film that resists UV breakdown, chalking, and yellowing for longer, typically requiring re-sealing every three to five years in SA outdoor conditions rather than every two to three years for acrylics. The initial cost premium over acrylics, typically $2 to $5 per square metre more for the sealer product and labour, is recovered within the first re-sealing cycle. For SA coloured concrete, asking the contractor to name the specific sealer product being used and to provide the technical data sheet confirming its UV resistance rating and recommended re-sealing interval for outdoor SA conditions is a straightforward quality check that reveals whether the sealer specification is appropriate for the SA environment. Products from manufacturers including Parchem, Fosroc, and Rockcote provide UV-stabilised polyurethane options appropriate for SA outdoor coloured concrete.

The sheen level of the sealer affects both the aesthetics and the practical performance of the coloured concrete surface. High-gloss sealers make colours appear most vivid and dramatic but reduce wet slip resistance (by filling surface texture with a smooth film) and are most susceptible to showing tyre scuffing and stone traffic scratches on driveways. Matte and satin sheen sealers provide a more natural appearance that ages more gracefully, maintain better wet slip resistance, and show traffic wear less visibly. For SA pool surrounds and sloped paths, a penetrating silane-siloxane sealer that does not reduce slip resistance is appropriate, though it provides less colour enhancement than a film-forming polyurethane. For SA driveways and patios where aesthetics are the priority, a mid-sheen polyurethane (described as satin or semi-gloss) provides a good balance between colour enhancement and practical durability.

Hot Weather Challenges for SA Coloured Concrete Pours

Coloured concrete is more challenging to place in SA summer conditions than plain broom-finish concrete, for two reasons. The first is practical: the concrete's working window is compressed by the heat, as described in our concreting services SA guide. The second is aesthetic: colour uniformity is more sensitive to variations in concrete temperature, water content, and evaporation rate during placement than a grey slab that will simply be broomed and sealed. An experienced SA coloured concrete contractor takes both challenges seriously and has specific protocols for summer pours rather than simply hoping the day is mild enough.

The specific hot weather concern for integral coloured concrete is colour mottling. Mottling occurs when different parts of the slab surface dry and carbonate at different rates, producing areas of lighter and darker colour that persist after sealing. The most common mottling cause in SA summer pours is uneven evaporation retarder coverage: areas where the evaporation retarder spray was thinner or applied later than others dry faster and develop a lighter surface colour. Applying the evaporation retarder immediately and evenly across the full slab surface as each section is screeded, before the surface begins to stiffen, is the critical technique for avoiding mottling in SA summer pours. A coloured concrete contractor who applies the retarder in sections while another part of the slab is drying faster than intended is creating the conditions for colour mottling.

The concrete mix for SA summer coloured concrete should include a retarding admixture dosed for the forecast temperature, to extend the workable window and reduce the rate of surface stiffening. The pigment dosage in a retarded mix behaves the same as in a standard mix: no special adjustment is required for the admixture. What does change is the finishing sequence: the retarder extends the window for each finishing pass, which is an advantage in hot conditions because it allows the concreter to complete finishing across the full slab area at a more controlled pace rather than racing against a rapidly stiffening surface. SA coloured concrete contractors who work through summer and regularly produce quality coloured concrete results will routinely specify retarded mixes for any summer pour rather than ordering standard mix and hoping the day is cool enough.

For SA homeowners specifically interested in coloured concrete driveways or patios, the best time to schedule these pours is March through May (autumn) or September through November (spring), when SA temperatures are moderate and the extreme northerly wind events that compress the hot weather working window are less frequent. Scheduling flexibility is not always possible, but raising the seasonal timing question with a SA coloured concrete contractor during the quoting process reveals whether they have thought through the scheduling risk and can offer informed advice on the best timing for the specific project scope and colour selection.

Matching Colour Across Separate Pours on SA Properties

The challenge of matching coloured concrete colour across multiple pours on the same SA property is one of the most common sources of dissatisfaction with coloured concrete results, and it is a challenge that cannot be completely eliminated but can be substantially managed by consistent specification and contractor practices.

Colour variation between pours is caused by differences in cement brand and batch chemistry, aggregate type and source, water-to-cement ratio at the time of placement, ambient temperature during placement and initial curing, curing method and duration, and sealer type and application time. Any of these variables changing between pours will produce a colour difference that is visible when the two adjacent pours are compared, even if both pours were made with the same nominal pigment dosage. Over time, the colour of both pours typically converges as weathering and UV exposure produce the same muted, settled appearance, but in the first one to two years the difference can be noticeable.

Practical measures that minimise colour variation between separate SA pours include: using the same ready-mix supplier (ideally the same plant) for all pours; specifying the same mix design code from the supplier's records for all pours; using the same pigment brand, product code, and dosage rate; applying the same curing method for the same duration on all pours; and applying the same sealer product at the same coverage rate on all pours. A SA concreting contractor who records the mix design code, pigment product code, and dosage rate from each pour provides the reference data needed for future matching. Without this record, matching a coloured concrete pour from several years earlier with a new adjacent pour is a largely speculative exercise.

SA homeowners who are planning a staged property project where new coloured concrete will eventually be added adjacent to existing coloured concrete should keep records of the contractor, the pigment product, the mix design code, and the sealer used for the initial pour. Providing these records to the contractor commissioned for the subsequent pour gives the best possible chance of a close colour match, though some variation is still likely due to the age difference and weathering state of the original pour compared to the fresh new pour. Discussing realistic matching expectations with the SA concreting contractor before the second pour, rather than discovering the colour difference on completion and asserting it as a defect, manages the expectation appropriately for a natural characteristic of the material.

Coloured Concrete Applications Across SA Properties

Coloured concrete is used across a wide range of residential and commercial applications in SA, and the appropriate colour selection, finish, and sealer differ somewhat between applications based on the use conditions, maintenance expectations, and aesthetic context of each.

For SA driveways, integral coloured concrete in warm tones applied with a broom finish or exposed aggregate finish is the standard decorative approach. The broom finish provides a clean, textured surface appropriate for vehicle use; exposed aggregate with integral colour combines the slip resistance and natural texture of the aggregate with the colour coordination of the pigment base. The most practical colour selection for SA driveways is a mid-tone warm neutral, buff, or light terracotta that does not show tyre and oil staining as prominently as very light tones, does not absorb excessive heat in SA summer as dark tones do, and complements a wide range of SA home exterior materials. Our concrete driveways SA guide covers the full specification including reactive soil design requirements that apply regardless of whether the concrete is coloured.

For SA patios and entertaining areas, integral coloured concrete allows the outdoor floor to complement the home's interior colour palette and exterior materials in a way that plain grey concrete does not. The most popular patio colour choices in SA create a warm transition between the indoor and outdoor spaces: ochre and terracotta tones that relate to warm interior timber and rendered wall colours; sandy buff tones that suit coastal SA homes and modern neutral interiors; and warm grey-brown tones that work with the contemporary colour palettes common in newer SA developments. Our concrete patios SA guide covers the drainage, reactive soil design, and pergola footing specification that applies to patio slabs regardless of finish colour.

Coloured concrete for SA pool surrounds requires the thermal comfort consideration discussed above: light pigment tones are strongly preferred for surfaces that will be used in bare feet in SA summer. A buff, cream, or light sandstone pigmented concrete pool surround is both more attractive and more practically comfortable than a deep terracotta or charcoal surround in the SA climate. The slip resistance specification for pool surrounds also applies regardless of colour: the finish must achieve P4 or higher wet slip resistance under AS 4586, and the sealer must not reduce this below P4 as described in our concrete pool surrounds SA guide.

Maintaining Coloured Concrete in SA

The maintenance program for coloured concrete in SA is primarily about maintaining the sealer, because the sealer protects both the colour vibrancy and the concrete surface from SA's UV radiation, staining, and moisture penetration. A coloured concrete surface that is properly maintained with periodic re-sealing will look significantly better after ten years than one that is not sealed, regardless of the quality of the initial pour.

The re-sealing interval for SA outdoor coloured concrete depends on the sealer type, the sun exposure of the surface, and the traffic it receives. As a practical guide, test the sealer condition annually by applying water to the surface: if the water beads up and rolls off, the sealer is still performing; if it soaks into the concrete surface immediately, re-sealing is due. For most SA outdoor coloured concrete with a quality polyurethane sealer, re-sealing will be required every three to five years in areas of high sun exposure and every four to six years in more sheltered locations. Acrylic sealers require more frequent re-sealing, typically every two to three years in SA outdoor conditions.

Before re-sealing SA coloured concrete, the surface should be cleaned thoroughly to remove surface dirt, oil stains, and any chalked or flaking residue from the previous sealer. A pressure washer at appropriate pressure (typically 1,500 to 2,000 PSI for most residential sealed surfaces), followed by a pH-neutral concrete cleaner for stubborn staining, is appropriate for most SA coloured concrete maintenance cleaning. Alkaline degreasers should be used sparingly on coloured concrete, as high-alkalinity cleaners can bleach surface pigment from inadequately sealed areas. After cleaning and drying, the re-sealer is applied at the manufacturer's recommended coverage rate. Using the same sealer product or a compatible product from the same manufacturer as the original sealer avoids inter-product compatibility issues that can produce a patchy or adhesion-compromised result.

Oil and chemical staining management is more critical for coloured concrete than for plain concrete, because staining that penetrates the concrete beneath a failed sealer is visible against the coloured background in a way that the same stain on grey concrete may not be. For SA driveways, using a drip tray under parked vehicles, addressing oil spills immediately with an absorbent material rather than leaving them to penetrate the surface, and maintaining a good sealer barrier against penetration are the practical management measures. For commercial SA coloured concrete in retail or hospitality environments, a cleaning schedule that addresses food, drink, and tracked-in contaminants regularly prevents accumulation that embeds below the sealer surface over time. Standards Australia publishes standards relating to concrete specification and testing that provide the technical framework for concrete quality in SA coloured concrete applications.

Coloured Concrete Pricing Across Adelaide - 2026 Guide

Coloured concrete pricing in SA adds a premium to the base plain concrete rate that reflects the pigment cost, the additional quality control required for colour consistency, and where applicable, the scheduling premium for avoiding problematic SA summer days. The pricing below reflects typical Adelaide metropolitan rates for integral coloured concrete from experienced SA decorative concrete contractors.

The colour sample pour listed above is a worthwhile investment for SA homeowners who are deciding between colours and want to see how the specific pigment will look when poured on their property before committing to the full area. A small on-site sample pour of 0.5 to 1 square metres, sealed with the intended sealer and allowed to cure for a week, gives a genuine indication of the finished appearance in the actual lighting conditions of the property and allows comparison with the home's exterior. Colour chips from a manufacturer's brochure do not accurately represent the colour as it appears in the SA outdoor environment, because the brochure sample has not been subject to the same curing, sealing, and weathering conditions as actual installed concrete. An experienced SA coloured concrete contractor will readily discuss the option of a reference sample pour for customers who are uncertain between two or three colour options.

What to Look Out For in SA Coloured Concrete Quotes

Coloured concrete quotes in SA vary significantly in the quality of the pigment, sealer, and curing specification, and these differences are not always apparent from the price alone. Several specific questions distinguish quotes that will produce a lasting, vibrant result from those that are likely to disappoint within a few years.

Ask for the specific pigment product name and manufacturer, the dosage rate as a percentage of cement weight, and whether the pigment is added at the batching plant or on-site. A specific product name from a recognised SA supplier confirms the product exists; a dosage rate confirms the intensity specification; and plant-added versus on-site addition affects colour consistency. Pigment products available from reputable SA suppliers include BASF Master Builders Solutions iron oxide pigments and Sika colour systems, both of which are available through SA concrete supply chains and produce consistent results when correctly specified.

Ask specifically what sealer product is proposed, its UV resistance rating, the intended sheen level, and the recommended re-sealing interval for SA outdoor conditions. If the answer is a generic "acrylic sealer" without a product name, ask for the product data sheet and check the UV resistance specification. A UV-stabilised polyurethane sealer with a manufacturer-stated outdoor life appropriate for SA UV exposure (typically rated to withstand high UV conditions) is the minimum appropriate specification for SA outdoor coloured concrete. The sealer cost is a small fraction of the total project cost, and the difference in longevity between an adequate and an inadequate sealer in SA conditions makes the specification worthwhile to confirm explicitly before accepting the quote.

Confirm the hot weather management protocol if the pour is scheduled for the SA warm season. Ask what retarder admixture will be specified in the mix, what evaporation retarder product will be used on the fresh surface, and what threshold conditions would trigger rescheduling. A SA coloured concrete contractor who answers these questions specifically and systematically has a professional approach to the SA placement challenge. One who says "we'll see what the weather is like on the day" has not planned the pour in a way that manages the SA summer placement risk adequately for a decorative coloured concrete job where colour uniformity is a customer priority. Disputes about coloured concrete work quality can be referred to Fair Trading SA under Australian Consumer Law if the finished result does not meet the agreed specification.

Choosing a Coloured Concrete Contractor in SA

The SA coloured concrete market is served by a mix of decorative concrete specialists who focus on residential driveways and patios, general concreters who offer coloured concrete as part of their service range, and commercial decorative concrete contractors whose portfolio spans high-end residential and commercial applications. For most SA residential projects, a local decorative concrete specialist with a strong Adelaide suburban portfolio and a demonstrable track record in coloured concrete work is the appropriate choice.

Ask to see a portfolio of completed SA coloured concrete work, specifically jobs that are at least two years old. Ask the contractor when the referenced projects were completed, and assess whether the colour is still even, vibrant, and well-sealed after the SA summers it has experienced. Fresh pour photos that were taken immediately after sealing are not informative about long-term colour stability: what matters for SA coloured concrete quality assessment is how the colour holds up after two or three summers of UV exposure, foot and vehicle traffic, and re-sealing cycles. A contractor who can show jobs two years or older with consistent, well-maintained colour is demonstrating a product and process quality that translates to lasting results on your project.

Confirm the contractor carries public liability insurance (minimum $10 million) and, for any structural concrete work, the CBS SA Building Work Contractor licence verifiable at CBS SA. For purely decorative non-structural concrete such as residential driveways and patios, the formal CBS SA structural licence requirement does not apply, but public liability insurance is essential to cover the risk of adjacent property damage during the pour. Ask whether the contractor is willing to provide a written specification of the pigment, mix design, curing method, sealer product, and minimum curing period as part of the accepted quote documentation: a contractor who is confident in their materials and process will readily provide this specification in writing, creating a clear reference for what the job was priced to deliver and a basis for assessing whether the finished result matches the specification. The UV stability and long-term performance of SA coloured concrete ultimately depends on the integrity of the specification and the discipline of the execution, and both are more reliably delivered when they are documented rather than assumed.