Underpinning Perth: remedial and concrete repair contractors

Perth's sandy soils behave differently to the eastern-state clays, but leaking services, poor drainage and pockets of reactive ground still cause localised subsidence, and coastal exposure drives concrete cancer near the coast. The free-draining sand that dominates the coastal and inner suburbs is generally stable and doesn't shrink or swell the way clay does, so footing movement here is more often traced to a specific cause, such as a leaking pipe washing fines out from under a footing or stormwater pooling against a slab, rather than broad seasonal soil movement along a whole street. Further east toward the Darling Scarp the ground turns more clay-rich, and while those soils are typically stiff rather than highly reactive, drainage and site preparation still matter more there than on the coastal sand. That variation across greater Perth is one reason a local, in-person assessment is more useful than a generic diagnosis. Checking for pooling water around the slab edge and keeping an eye on any hairline cracks after a burst pipe or heavy winter rain is a sensible habit regardless of which soil type a property sits on. Below is a starter sample of remedial and underpinning specialists serving greater Perth; the full contractor list continues to grow.

16 providers listed

Use each profile as a starting point, then ask the provider for current service, licence and insurance details.

Typical underpinning runs about $4,000 to $15,000 (a guide, not a quote). See the underpinning cost guide before you compare quotes.

Curious how Perth's soil compares to other capitals? Read reactive clay and subsidence risk by city.

For a useful shortlist, match the contractor's service focus to the symptom you are seeing: cracks and sloping floors usually need foundation or underpinning experience, while rust stains, spalling concrete and failed balcony waterproofing point toward remedial building work.

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Tell us what you are seeing and roughly where the property is. We will match you with a remedial or underpinning contractor serving your area.

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Concrete cancer repair

Based in Inglewood, WA, PERTH CONCRETE REPAIR offers underpinning and structural repair services to local homeowners, including concrete cancer repair.

5.0 (3 Google ratings)

Concrete cancer repairWaterproofingStructural crack repair

Apache WA - Concrete Repair Specialists serves Kelmscott, WA with remedial and underpinning services, including concrete cancer repair, waterproofing and structural crack repair.

WaterproofingStructural crack repairStrata / apartment experience

Elite Concrete Protection & Repair operates in the Balcatta, WA area, offering remedial building services, including waterproofing and structural crack repair. Contact them directly for a current quote.

Perth Restoration

Perth, WA

5.0 (2 Google ratings)

Concrete cancer repairStructural crack repair

Based in Greenwood, WA, Perth Restoration offers underpinning and structural repair services to local homeowners, including concrete cancer repair and structural crack repair.

4.4 (9 Google ratings)

Waterproofing

BUSS Waterproofing & Concrete Remediation serves Osborne Park, WA with remedial and underpinning services, including waterproofing.

4.1 (10 Google ratings)

Concrete cancer repairWaterproofingStructural crack repairStrata / apartment experience

Based in Inglewood, WA, Conspar Building Services offers underpinning and structural repair services to local homeowners, including concrete cancer repair, waterproofing and structural crack repair.

Kwikcut & Coring

Perth, WA

5.0 (4 Google ratings)

Waterproofing

Kwikcut & Coring operates in the Malaga, WA area, offering remedial building services, including waterproofing. Contact them directly for a current quote.

5.0 (35 Google ratings)

Resin injectionRestumping / reblockingConcrete cancer repairWaterproofing

Advanced Ground Solutions serves Kewdale, WA with remedial and underpinning services, including resin injection, restumping and reblocking, concrete cancer repair, waterproofing and structural crack repair.

Mainmark Perth WA

Perth, WA

4.9 (37 Google ratings)

Resin injection

Based in Wangara, WA, Mainmark Perth WA offers underpinning and structural repair services to local homeowners, including resin injection.

5.0 (31 Google ratings)

Based in Osborne Park, WA, Chemical Grout Injection offers underpinning and structural repair services to local homeowners.

5.0 (11 Google ratings)

Waterproofing

Based in Landsdale, WA, BMC Microfine Chemical Grout Solutions offers underpinning and structural repair services to local homeowners, including waterproofing.

4.8 (16 Google ratings)

Screw pier underpinning

Foundation Engineering is a remedial building contractor based in Bayswater, WA, including screw pier underpinning. Reach out directly to confirm availability and current rates.

Fondex

Perth, WA

5.0 (2 Google ratings)

Screw pier underpinning

Fondex serves Bayswater, WA with remedial and underpinning services, including screw pier underpinning.

Buildfix®

Perth, WA

5.0 (283 Google ratings)

Buildfix® operates in the Sunshine West, WA area, offering remedial building services. Contact them directly for a current quote.

Antidamp WA

Perth, WA

4.6 (33 Google ratings)

Waterproofing

Antidamp WA is a remedial building contractor based in South Perth, WA, including waterproofing. Reach out directly to confirm availability and current rates.