Restumping & Reblocking in Wagga Wagga
Wagga and the towns around it — Junee, Coolamon, The Rock — still carry a big stock of post-war homes sitting on timber stumps, and those stumps have now spent sixty-plus years in ground that swings between bone dry and saturated. If your floors have gone spongy, the house creaks in new ways, or you’ve spotted a leaning or crumbling stump under the floor, this is the page for you. Restumping (also called reblocking) replaces failed stumps so the whole house sits on sound supports again.
What restumping and reblocking involve
A stumped home carries its weight through bearers onto rows of stumps — originally timber in most Riverina homes of that era. Restumping replaces those supports, and the modern standard is either galvanised steel adjustable stumps or precast concrete stumps, both of which resist the rot and termite damage that ends a timber stump’s life.
The work itself is more surgical than it sounds:
- The house is supported on jacks near each stump being replaced, taking the load safely while the old stump comes out
- The old stump is pulled and its footing hole excavated to the size and depth the replacement needs — in Wagga’s reactive clay, adequate founding depth matters, because a shallow stump rides up and down with every moisture swing
- A concrete footing pad is poured and the new stump installed plumb, packed to the bearer at the correct height
- Because the house is already on jacks, restumping almost always includes a re-level as part of the job — floors come back to height as the new stumps go in
Reblocking is simply the Victorian term for the same trade; around NSW you’ll hear restumping, but plenty of contractors service both states and use the words interchangeably.
Restumping or underpinning? They solve different problems. Stumped homes get restumped; homes on strip footings or slabs get underpinning. If your home has a mix — say, a stumped original cottage with a slab extension — the inspection works out which parts need which treatment.
Signs your stumps are on the way out
- Soft, bouncy or springy floors, especially in high-traffic paths like hallways
- Floors dipping towards the middle of a room (stumps sink individually, so the pattern is patchy rather than a uniform slope)
- Doors and windows binding in parts of the house that used to be fine
- Visible evidence under the floor: stumps that are leaning, mushrooming at the base, soft when probed, or showing termite galleries
- A damp under-floor smell — poor sub-floor drainage rots timber stumps faster, and flood-fringe blocks near the Murrumbidgee and the lagoon systems see exactly this
- You’re renovating an older home — banks and building certifiers often want stump condition confirmed before major work over the top
If you’re not sure whether it’s stumps, footings or just old floorboards, start with a foundation inspection rather than guessing.
The restumping process from enquiry to sign-off
- Get in touch. Call (02) 0000 0000 or lodge the quote form. Mention the home’s age and suburb — a 1950s timber-floor place in Kooringal tells a specialist half the story already.
- Sub-floor inspection. A licensed contractor gets under the house, probes every stump, checks bearers and joists for rot and termite damage, and measures floor levels. You find out whether you need a handful of stumps or a full restump — they’re very different jobs and honest contractors price them differently.
- Scope and formal quote. The written quote sets out stump count, material (steel or concrete), footing sizes, expected re-level, and licence details ([PARTNER LICENCE NO.] supplied with every quote). Whether approval or certification applies varies with the scope — your contractor will confirm what’s required and check with Wagga Wagga City Council where needed.
- Site set-up and access. Crawl-space clearance is the big practical variable. Low-clearance homes may need some digging for working room; occasionally a few floorboards come up in tight spots. The contractor plans this before day one, not during.
- Progressive replacement. Stumps are replaced in an engineered sequence, never all at once, with the house supported on jacks throughout. Levels are corrected as the new stumps are packed to the bearers.
- Clean-up and completion. Old stumps — including rotted timber, which shouldn’t be left to attract termites — and excavation spoil are removed from site. You get the final level results, warranty terms, and where the contract value triggers it, home building compensation insurance details (thresholds depend on the contract value; the contractor confirms what applies).
What restumping costs in the Riverina
Pricing is essentially per stump, multiplied out, with a few swing factors:
- Number of stumps — a partial restump of one wet corner versus 60+ stumps under a full house
- Material — adjustable steel generally costs more per stump than concrete but allows future fine-tuning
- Access — good crawl space keeps labour down; a low-set house raises it
- Extras discovered under the floor — rotted bearers and joists are the classic variation
- Ground conditions — deeper footings in soft or fill ground add concrete and labour
| Scope (indicative only) | Indicative range* |
|---|---|
| Partial restump (5–15 stumps) | $3,000 – $10,000 |
| Half-house restump | $8,000 – $18,000 |
| Full restump, average 3-bedroom home | $15,000 – $35,000 |
| Full restump with bearer/joist replacement | $25,000 – $45,000+ |
*Indicative budgeting ranges only — every restump is priced after a sub-floor inspection and confirmed in a formal written quote. See the underpinning cost guide for how structural repair pricing works across the board in Wagga.
What the quote covers — and the usual extras
Normally covered: jacking and temporary support, removal and disposal of old stumps, new footings and stumps, packing and re-levelling to the bearers, and site clean-up.
Usual extras: replacing rotted or termite-damaged bearers and joists (only quotable once the old stumps are out and timbers are exposed), termite treatment if live activity is found, improving sub-floor drainage or ventilation so the new stumps stay dry, plumbing adjustments where pipes run through the work zone, and cosmetic repairs to plaster cracks after the re-level.
Related services and areas we cover
If your stumps are sound but floors are out, house re-levelling may be all you need; if your home is on strip footings, look at underpinning instead — and either way an inspection settles it. We arrange restumping across Wagga’s older suburbs including Kooringal and Lake Albert, and through the smaller towns where stumped homes are the norm, including Junee and surrounds.
Restumping FAQs
Steel or concrete stumps — which is better for Wagga?
Both perform well here. Adjustable steel stumps allow future height tweaks — genuinely useful on reactive clay that keeps moving seasonally — while concrete is economical and durable. Your contractor will recommend based on loads, soil and budget; there’s no single right answer.
Can you replace just the bad stumps?
Yes, partial restumps are common. The trade-off: if most stumps are the same age and half have failed, the rest are usually not far behind, and mobilising twice costs more than doing it once. A stump-by-stump inspection gives you the numbers to decide.
Will the house be damaged during restumping?
Minor plaster cracking can occur as levels are corrected — the same movement that happens in any re-level. Progressive jacking in small lifts keeps it minimal. Structural damage from properly executed restumping is not something you should expect from a licensed contractor.
Do we need to move out?
Almost never. The work happens under the floor, and the house is supported at every stage. Expect some noise and a few days of trades underfoot, not a relocation.
How long do new stumps last?
Galvanised steel and precast concrete stumps are expected to outlast the timber they replace by a wide margin — many decades in normal conditions. Keeping the sub-floor dry and ventilated is the best thing you can do to protect them, whatever the material.
Book a sub-floor inspection
The state of your stumps is knowable — it just takes someone qualified crawling under the house with a probe and a level. Call (02) 0000 0000 or fill in the Get a fast quote form and we’ll arrange a licensed restumping specialist to inspect and give you a written picture, usually within a few days.