Underpinning Cost Calculator Sydney
Worried about the cost? Get a transparent, obligation-free estimate for your foundation repairs in less than 30 seconds.
Estimate Your Project Cost
Estimated Price Range
*Rough guide based on 2025 Sydney rates. Engineering fees included.
Get Exact QuoteWhat affects the price?
Access: Can we use a mini-excavator (cheaper) or do we need to hand-dig (more expensive)?
Soil Type: Western Sydney clay often requires deeper pins than sandy coastal soil.
Engineering: Every job requires a structural engineer’s report for council certification.
2026 price guide
Concrete Underpinning: $1,200 – $2,000 per pin
Resin Injection: $250 – $400 per m²
Screw Piles: $900 – $1,500 per pile
Engineering Report: $1,500+
Frequently Asked Questions
Does insurance cover this?
Usually not, as insurers consider subsidence “maintenance.” However, if it’s due to a specific event (storm/pipe burst), we can help with the report for your claim.
Why is the range so wide?
No two foundations are alike. A terrace house in Surry Hills has different challenges (party walls, no access) compared to a bungalow in Blacktown.
Are there hidden costs?
The quote covers structural work. You should budget separately for cosmetic repairs (patching plaster, painting) and landscaping restoration after we finish.