Based in Marrickville, NSW, Restorial Pty Ltd offers underpinning and structural repair services to local homeowners, including waterproofing.
In greater Sydney, older apartment blocks and balconies see a lot of concrete cancer, while reactive clay suburbs see more footing movement and cracking.
As a 2025 guide, typical underpinning runs about $4,000 to $15,000 and concrete cancer repair varies widely with access -- a guide, not a quote. See the cost guide for the detail.
Use the provider's current licence, insurance and written scope as part of the hiring decision.
Restorial Pty Ltd's listing here covers Waterproofing and Strata / apartment experience. Treat that as a pointer for comparing specialists rather than a confirmed scope of work, and check directly what they can take on.
We do not hold or publish licensing or insurance status for any listed business. Ask Restorial Pty Ltd for current licence and insurance details, and use your state's building or fair trading regulator records as the independent source.
A structural engineer's assessment comes first for anything more than fine cosmetic cracking. That report lets Restorial Pty Ltd and any other contractor you compare quote against the same diagnosed cause, rather than each guessing at the problem independently.
As a 2025 guide, residential underpinning commonly runs $4,000 to $15,000, with the full spread across jobs from about $3,000 to $25,000; concrete repair varies a lot with access. Treat any figure, including one from Restorial Pty Ltd, as a guide until you have a written, inspection-based quote. See our cost guide for the breakdown.
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.
Sydney, NSW
Atomic Projects serves Croydon Park, NSW and works strata and commercial buildings only, covering concrete cancer repair, waterproofing and structural crack repair. Its own site says typical projects run from $250K, but it scopes smaller packages too, with its estimator starting at the $20–60K band, and says it is worth a call for remedial work in Sydney.
Sydney, NSW
TC Remedial And Waterproofing operates in the Dee Why, NSW area, offering remedial building services. Contact them directly for a current quote.
Sydney, NSW
BiM Remedial Sydney serves Frenchs Forest, NSW with remedial and underpinning services, including concrete cancer repair and waterproofing.
Sydney, NSW
NSW Fair Trading licence checked
Sydney Piling PTY LTD serves Mascot, NSW with remedial and underpinning services.
Sydney, NSW
NSW Fair Trading licence checked
Based in Cambridge Gardens, NSW, A1 Underpinning offers underpinning and structural repair services to local homeowners, including restumping and reblocking and structural crack repair.