Cost of Underpinning in Adelaide (2025 Guide)
How much does underpinning cost in Adelaide? This guide covers typical pricing for all major underpinning methods, the factors that affect cost, and how to get the best value.
Adelaide Underpinning Cost by Method
| Method | Per Linear Metre | Typical Total Cost |
|---|---|---|
| Mass Concrete | $800 - $1,500 | $8,000 - $20,000 |
| Screw Piles | $1,200 - $2,500 | $12,000 - $30,000 |
| Mini Piles | $1,500 - $3,000 | $15,000 - $35,000 |
| Resin Injection | $500 - $1,200 | $5,000 - $15,000 |
| Beam & Base | $1,000 - $2,000 | $10,000 - $25,000 |
| Restumping | $300 - $600 | $4,000 - $20,000 |
Factors That Affect Underpinning Cost
- Soil conditions — Reactive clay (common in Burnside, Mitcham, Unley) may require deeper underpinning
- Depth required — Deeper underpinning costs more per metre
- Access — Restricted access increases labour costs
- Wall length — Longer runs cost more but have lower per-metre rates
- Property type — Heritage and commercial buildings may cost more
- Council requirements — Engineering reports and approvals add $1,000-$3,000
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