Retaining walls fail for predictable reasons: undersized footings, no drainage behind the wall, undersized reinforcement or no engineering design at all. South Coast Remedial builds retaining walls that don't fail. engineered, drained and constructed to design, on the Illawarra's notoriously variable ground.
We design and build in reinforced concrete, core-filled block, treated timber and natural stone, depending on the load, the geometry and the look you're after. Every wall over the council threshold is engineered and certified.
What's Included
Every retaining walls engagement covers the scope below, adjusted to suit the specifics of your project.
Reinforced concrete walls
Cast-in-place concrete retaining walls for high loads and long service life.
Core-filled block walls
Reinforced block walls with proper bar size, spacing and core fill.
Timber retaining
H4 or H5 treated timber walls for lower retained heights.
Stone & boulder walls
Natural stone walls for landscape and rural settings.
Our Process
- 1
Site assessment
Inspection of ground, retained height, surcharge and drainage path.
- 2
Engineering
Structural design by an engineer where height or surcharge requires it.
- 3
Construction
Excavation, footings, reinforcement, drainage and wall construction.
- 4
Drainage & backfill
Subsoil drain, no-fines drainage layer or geotextile, then engineered backfill.
Why Choose South Coast Remedial
- Engineered design as standard, not as an afterthought
- Drainage installed properly. the most-skipped detail on failed walls
- Concrete, block, timber and stone all in-house
- Council documentation handled on your behalf where required
Frequently Asked Questions
Do I need an engineer for a retaining wall?
Generally yes for walls over 600,900mm or with surcharge. we confirm based on council and site.
Do I need council approval?
Often yes above certain heights. We coordinate the application or work to an existing approval.
How long does a retaining wall last?
A correctly engineered and drained concrete or block wall should comfortably exceed 50 years.
Retaining Walls across NSW
We deliver retaining walls across Sutherland Shire, Greater Wollongong, the Southern Highlands and Shoalhaven.
Get your Remedial Services now.Pay later with Humm.
South Coast Remedial Construction has partnered with Humm so eligible customers can finance up to $50,000 with flexible repayments up to 120 months. Interest-free plans available on eligible Humm terms.
Cover your full Remedial Services scope in one approval.
Flexible repayments that fit your budget.
Available on eligible Humm plans, subject to approval.
Apply online directly with Humm. We never see your details.
Finance provided by Humm Group Limited. Approval, fees, charges and T&Cs apply.
- 1Get a free quote from South Coast Remedial Construction.
- 2Apply online with Humm. Quick decision.
- 3We start your Remedial Services once approved.
- 4Pay Humm back over your chosen term.
Suburbs we service across NSW.
Specialist remedial building coverage across Sutherland Shire, Greater Wollongong, the Southern Highlands and Shoalhaven. with statewide capacity for expert witness and larger projects.
Don't see your suburb?
We regularly attend sites outside listed areas. call the Director to confirm coverage and response time.