
Opal SA Construction is an Adelaide-based, family-owned concrete company delivering expert residential, commercial, and industrial concrete solutions. From laser-levelled floors to safe and clean home services, we combine precision, reliability, and personal service for every project.
Expert residential, commercial, and industrial concreting with proven results
We don’t just pour concrete; we engineer it. Our laser levelled screeding and high strength mixes deliver super flat floors that exceed AS 2870 standards.
Opal Construction LTD is a true design and construct partner. From soil testing to final polished seal, one project manager keeps every trade on the same page.
We combine the buying power of a national supplier with the personal touch of a family run business. Transparent quotes, progress photos, and a director who answers calls on weekends.
Our crews are SafeWork SA–accredited and treat your home like our own. Drop sheets, daily site brooms, and low noise equipment keep your property spotless.
At our core, we believe great work begins with honesty, precision, and care. Every project we complete reflects our passion for craftsmanship and our commitment to delivering lasting results that exceed expectations.
Opal Construction LTD holds South Australian Builder's Licence BLD 317725, issued under the Building Work Contractors Act 1995. Every project is completed by qualified tradespeople operating under SafeWork SA guidelines and in full compliance with the National Construction Code and AS 2870 residential slab standards.
Fully licensed under the South Australian Building Work Contractors Act. Our licence covers all classes of residential and commercial concrete work.
I started Opal SA Construction because I believed Adelaide homeowners deserved a concreting team that turns up on time, quotes honestly, and stands behind its work. Every job — from a driveway in Salisbury to a full exposed aggregate alfresco area in Norwood — gets the same attention to detail.
We use our own trained crew on every project. No subcontracting, no surprises. I trust the team we've built to deliver consistent quality on every job.
4.6
Opal SA Construction was built on a straightforward premise: Adelaide homeowners deserve a concreting team that understands local conditions, quotes honestly, and finishes what it starts. After 9 years and hundreds of completed projects across the metro area, that remains our standard on every job.
The single biggest differentiator between a concreting team that understands Adelaide and one that doesn't is how they handle reactive clay soils. Adelaide's northern corridor — Salisbury, Gawler, Elizabeth, Para Hills, Angle Vale — and its southern corridor — Morphett Vale, Hallett Cove, Reynella — sit on AS 2870 Class H1 to H2 soils. These clays expand when wet and contract during Adelaide's dry summers by up to 35 mm across a typical driveway slab.
An undersized slab on uncompacted roadbase, without the right mesh grade and control joint spacing, will crack on these soils within 3–5 years. We check the AS 2870 classification for every job before finalising the specification — and if the site conditions demand a premium spec, we say so upfront rather than quoting light and over-delivering on problems.
AS 3600 / AS 2870 Compliance
Every residential slab is designed to AS 2870 (Residential Slabs and Footings). Commercial floors follow AS 3600 (Concrete Structures). We don't improvise on standards.
25–32 MPa Concrete Specification
Standard residential driveways use 25 MPa. Pool surrounds and coastal sites use 32 MPa. We specify the right strength for the application, not the cheapest mix available.
SL72 / SL82 Reinforcement
SL72 mesh on standard Class M sites. SL82 on Class H1 and H2 reactive clay sites. Correct lap lengths and cover maintained on every pour.
We provide residential, commercial, and industrial concreting services across metropolitan Adelaide and the greater SA region. Free site visits available for all listed suburbs.
Opal Construction LTD carries comprehensive public liability and workers compensation insurance on every project, giving clients complete peace of mind.
Our crews operate under SafeWork SA–compliant safe work method statements. Zero-harm policy enforced on every residential and commercial site.
43 Google reviews
“Quality workmanship which you don't see much of these days.”
“Fantastic job for a great price. Rarely can you tick both of those boxes.”
“From start to finish, clear instructions, quality work, on time and the whole team were friendly and hard working.”
Laser-Levelled Screeding
Every pour is screeded to laser level — ±2 mm tolerance on driveways, ±3 mm on large slabs. Drainage falls on pool surrounds and patios meet AS 3500 minimum 1:50.
SafeWork SA SWMS on Every Site
A Safe Work Method Statement is prepared before every project. All crew hold current White Cards. No exceptions for residential jobs.
Council Permit Management
We advise on crossover permit requirements for all 17 Adelaide metro councils and lodge applications on your behalf. We do not pour until approval is confirmed.
Every project involves compliance with multiple Australian Standards and South Australian regulations. The ones most relevant to residential work are:
Ready to work with a team that knows Adelaide concrete?
Call Javed on 0466 801 058 for a free on-site quote within 48 hours.