Concrete vs steel vs timber stumps: the honest comparison
Three materials, three price points, and one factor that should drive your choice more than anything: your soil.
Concrete stumps — the regional workhorse
$80–$150 installed. Lifespan 50–80 years. Steel-reinforced concrete stumps are the default for good reason: durable, termite-proof, rot-proof, economical. Their one weakness: they're rigid. In highly reactive clay that heaves and drops each year, rigid stumps can crack or tip over decades. In stable or sandy ground, they're all you'll ever need.
Galvanised steel stumps — the reactive-soil answer
$180–$300 installed; adjustable jack-head types $220–$380. Lifespan 80+ years. Steel stumps with adjustable heads can be re-levelled in hours without re-excavation when the ground moves. In the Wimmera's cracking clays or the Latrobe Valley, that adjustability can save a five-figure re-restump down the track. Modern galvanising handles regional Victorian conditions comfortably.
Timber (red gum) stumps — heritage only
$60–$120 installed. Lifespan 15–40 years in ground contact. Red gum built regional Victoria, but replacing rotted timber with new timber is buying the same failure again. The exception: some heritage-listed properties where like-for-like materials are required.
Our rule of thumb
- Sandy/loam soils (much of Mildura, river-flat towns): concrete. Save the steel premium.
- Reactive clay (Horsham/Wimmera, Traralgon/Latrobe Valley, patches everywhere): steel adjustable is genuinely worth it — or at minimum, steel under the wet areas and heavy points.
- Mixed/unsure: a soil check during the free inspection settles it — this is exactly what the engineering computations are for.
A good restumper recommends per-house, not per-preference. If someone quotes one material without asking about your soil, keep shopping.