Best retaining wall builders in Rockingham & Mandurah (2026)
Table of Contents
These are the best-rated retaining wall builders working the Rockingham and Mandurah corridor, from Baldivis, Secret Harbour and Warnbro down through Rockingham, Safety Bay and Shoalwater, and on to Mandurah, Halls Head, Falcon and Dawesville. They’re ranked on real Google reviews, not on who paid us. This stretch of coast is a genuinely healthy retaining wall market, new estates cutting into rising ground around Baldivis and Secret Harbour, older established blocks around Rockingham needing a tired wall replaced, and canal-front properties around Mandurah and Dawesville where drainage behind a wall matters more than almost anywhere else in WA. What follows is what a retaining wall actually costs down here in 2026, why sandy coastal soil and a high water table change how a wall needs to be built, when you need council approval and an engineer’s design, the warning signs of a dodgy job, and a checklist to run before you pay a deposit.
Featured retaining wall builders
These spots are for Rockingham and Mandurah retaining wall builders who want to stand out on this page. None are taken yet, so the full review-ranked list is right below. That ranking is earned off Google reviews and never for sale. Are you a retaining wall builder working this corridor? Featured spots start at $50 a year.
Get a Featured spot ▸How we ranked these
- Google reviews do the ranking. We start with every builder’s live Google star rating and the number of reviews behind it, pulled fresh from Google Maps.
- Rating, weighted by volume. A perfect score off a handful of jobs isn’t proof yet, so we weight the score by review count. Looking Good Landscaping’s 61-review record, backed by over 20 years trading in Baldivis, is why it leads this list ahead of several other perfect-scoring names.
- Specialists are flagged, not hidden. Only a couple of names below are dedicated retaining or limestone specialists, most are landscapers, a concreter and an excavation/earthworks crew who build retaining walls as part of wider site work. We’ve told you plainly what each one specialises in.
- Genuine local operators, not suppliers. We ran three separate Maps searches across this cluster and checked several names against their actual Google listing description before including them. A landscaping supply yard, a soil yard and two address-less “Perth [something]” service listings turned up strongly in the results but were left off, one had zero retaining-wall evidence in its own scope-of-work description, the rest are materials suppliers, not installers.
- Real, verifiable addresses. Every business on this list has a confirmed street address or a landline/mobile tied to Rockingham, Baldivis or Mandurah, not a generic, address-free map pin.
- Paid spots are labelled, and never jump the queue. When a business pays for a “Featured” spot it’s marked as such. The review-based order below does not change to favour a payer. Right now, no spots are sold.
Looking Good Landscaping
A 4.9 across 61 reviews, the strongest and deepest record on this page, backed by over 20 years working the Rockingham, Baldivis, Byford and Secret Harbour area. Looking Good builds limestone blockwork retaining as part of its hardscaping work alongside paving, garden edging and site preparation, and offers a 12-month labour warranty on completed jobs. A solid first call whether your wall is a standalone job or part of a bigger yard makeover.
View listing & contact ▸C & M Excavation & Earthworks
A clean 5.0 across 27 reviews. C & M handles the digging, levelling and cut-and-fill site preparation a retaining wall depends on, particularly useful for new-build blocks around Mandurah, Erskine and Greenfields where the finished pad often needs real earthworks before a wall goes in.
View listing & contact ▸Complete Concrete WA
A 5.0 across 15 reviews. Concreters like this crew are a common route to a reinforced besser or poured concrete retaining wall in this corridor, particularly on taller, engineer-certified walls where reinforced concrete outperforms dry-stacked limestone.
View listing & contact ▸A note on the order: we weight the star rating by the number of reviews, which is why Looking Good Landscaping’s deep, 20-year track record leads a page full of perfect 5.0 scores from smaller operators. Most names here aren’t dedicated retaining-only businesses, landscapers, a concreter and an excavation crew make up most of the list, alongside a genuine handful of limestone and retaining specialists further down. If your job is a standalone retaining wall, look to the limestone specialists (Pauls Limestone, Creative Limestone, Limestone Wall Contractors WA). If it’s part of a bigger cut-and-fill or new-build site, the landscapers, concreter and excavation crew above them are worth calling too. As always, get two or three quotes on the same scope before you commit.
What a retaining wall actually costs around Rockingham & Mandurah (2026)
Nobody likes ringing a builder blind on price. These are honest WA ballpark ranges for the common retaining wall jobs, GST included. They’re a guide to keep you from being overcharged, not a quote, retaining wall prices move with height, material, ground conditions and access, so the spread on each line is wide for a reason. This corridor runs from newer estates cutting into rising ground around Baldivis and Secret Harbour, to flatter established Rockingham blocks needing a tired wall replaced, to canal-front and low-lying Mandurah and Dawesville properties where the water table sits close to the surface and drainage is everything.
| Job | Typical WA range | What pushes it up |
|---|---|---|
| Limestone block wall, dry-stacked, under 600mm (per m²) | $250-$400 / m² | Height, access, whether backfill/drainage is included, site clean-up |
| Limestone block wall, mortared & engineered, over 600mm (per m²) | $400-$650 / m² | Height, engineering and permit costs, reinforcement, drainage complexity |
| Besser block, reinforced & rendered (per m²) | $350-$550 / m² | Reinforcement, render finish, height, engineering for taller walls |
| Precast concrete post-and-panel (per m²) | $300-$500 / m² | Post depth/spacing, panel finish, height, crane or machine access |
| Excavation / cut-and-fill site works (per m³) | $30-$70 / m³ | Access, soil type, spoil removal, machine size |
| Engineer’s design & certification (required over 500mm) | $500-$1,500 | Wall height and length, soil report if required, site access, complexity |
| Council/building permit lodgement | $200-$600 | Council, wall height, whether a boundary or neighbour notice is needed |
| Sub-soil / ag-drain upgrade for a high water table (per m run) | $70-$160 / m | Depth to water table, pump-out needed during digging, ag-drain length, backfill |
| Removal & disposal of an old failing wall (per m run) | $40-$90 / m | Wall material, height, access, tip fees |
Baldivis and Secret Harbour are the growth corridor, new-build blocks here more often need real cut-and-fill retaining as part of the original site works, which is where an excavation contractor alongside your wall builder earns its keep. Around Mandurah, Halls Head, Falcon and Dawesville, particularly anywhere near the canals or the estuary, the water table sits close to the surface, and a wall built without proper sub-soil drainage will hold water and fail early, budget for the drainage line item, don’t skip it to save a few hundred dollars.
Don’t get ripped off: red flags
- No drainage behind the wall. This is the single most common cause of retaining wall failure in WA, and it’s worse here than in drier inland suburbs. A wall backfilled with plain excavated sand, with no agricultural drain and no free-draining material behind it, will trap water and eventually bulge, lean or collapse, especially close to the canals and the estuary where the water table is already high. Ask exactly what’s going in behind the wall.
- No engineer’s certification on a wall over 500mm. In WA, retaining walls above roughly 500mm generally need council or building approval and an engineer-certified design. A builder who shrugs this off is either wrong or hoping you won’t check.
- No plan for cut-and-fill site works. On new-build blocks around Baldivis and Secret Harbour, a retaining quote that doesn’t account for genuine earthworks and spoil removal will often blow out once digging starts. Get the earthworks scope confirmed separately if it’s not included.
- Ignoring a high water table near the canals. Around Mandurah’s canal estates and low-lying Dawesville and Erskine blocks, a builder who doesn’t mention sub-soil drainage or pump-out during digging hasn’t thought about the actual ground they’re building in.
- Cash-only, no ABN, no insurance. Retaining wall building is not a licensed trade in WA, but a genuine operator still carries an ABN and public liability insurance. No ABN, no insurance and a cash-only push is a red flag.
- The quote is well under everyone else’s. On retaining walls the lowball is almost always missing drainage, engineering or proper footings. Compare quotes on identical height, material, drainage provision and whether engineering is included.
- A big deposit up front. Materials for a retaining wall don’t justify a huge deposit before work starts. A modest deposit with the balance on completion is normal.
Before you hire: quick checklist
- ABN and public liability insurance. Confirm the builder has a current ABN and public liability cover before any work starts. Retaining wall building isn’t licensed in WA, so this is your main protection.
- Engineering for walls over 500mm. If your wall is taller than about 500mm, confirm an engineer will design and certify it, and that council approval is sorted before work starts.
- Drainage spelled out in writing. Get the backfill material, the agricultural drain and where the water actually goes written into the quote, especially close to the canals or the estuary.
- Earthworks scope confirmed. On a new-build or cut-and-fill block, confirm whether excavation and spoil removal are included in the retaining quote or need a separate operator.
- Boundary and neighbour sorted. If the wall sits on or near a boundary, confirm the true boundary line and that your neighbour is aware where relevant.
- Written quote with the detail. Height, material, drainage, engineering (if required), and the price, all in writing before you pay a deposit.
- Recent, specific reviews and references. Look for recent reviews that mention an actual wall, and ask for a local job you can look at.
Frequently asked
How did you rank these retaining wall builders?
By their live Google star rating and the number of reviews behind it, pulled from Google Maps. We weight the rating by review volume, which is why Looking Good Landscaping’s deep, 20-year track record leads a page full of smaller perfect-score operators.
Which areas does this cover?
Rockingham and Mandurah. That runs across Rockingham, Baldivis, Secret Harbour, Warnbro, Waikiki, Safety Bay, Shoalwater, Port Kennedy, Golden Bay, Singleton, Karnup, Mandurah, Halls Head, Falcon, Dawesville, Erskine, Greenfields, Coodanup and Pinjarra.
Are these paid placements?
No. This list is ordered on Google review data. Businesses can pay for a “Featured” spot at the top, which is clearly labelled, but paying never changes the review-based order below. As of this update, no spots are sold.
Do I need council approval for a retaining wall in WA?
Generally, yes, once the wall is above roughly 500mm high, and always where it involves a boundary or affects a neighbour’s land. Rules vary a little by council, so confirm with your builder or your local council before work starts.
Do I need an engineer for my retaining wall?
For anything above roughly 500mm, yes, WA generally requires an engineer-certified design before council will approve it.
Why does drainage matter more here than in other parts of Perth?
Because much of this corridor sits on sandy coastal soil with a shallow water table, and anywhere near Mandurah’s canals or the estuary that table can sit very close to the surface. Water trapped behind a retaining wall creates pressure the wall isn’t designed to hold, so without a proper sub-soil drain and free-draining backfill, even a well-built wall can bulge, lean or fail within a few wet winters.
How often is this page updated?
Monthly. Ratings and review counts move, new builders earn their spot, and we re-pull the data so the list stays honest and current.
Are you a retaining wall builder in Rockingham or Mandurah?
Get in front of homeowners planning a retaining wall, from a small garden edge to a full cut-and-fill rebuild on a new estate. Claim your free listing, or ask about a Featured spot on this page.
Get featured ▸ Claim your free listingRankings based on Google review data collected 31 July 2026. Ratings change, we re-check monthly. Blue Collar Business · Western Australia’s Trades & Home Services Directory.