Jack and Pack in Bendigo

The cheapest way to get a floor back towards level — when the house qualifies for it.

Jack and pack costs a fraction of a restump. It is also the wrong answer more often than it’s the right one, and packing a house that needed restumping is money spent twice.

So the useful question isn’t whether jack and pack is cheaper. It’s whether your house is a candidate.

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What jack and pack actually involves

The house is lifted in controlled stages from underneath, and packing is inserted between the top of each existing stump and the bearer sitting on it. The floor comes back towards level. The stumps stay exactly where they are.

That last point is the whole method. Nothing is dug out, nothing is replaced, no new stumps go in the ground. The existing stumps keep carrying the house — they just carry it slightly higher than they were.

Which is why it’s cheap, and why the condition of those stumps decides everything.

If the stumps are sound and the house has simply settled, packing is a legitimate structural repair that has been used on Victorian housing for a very long time. If the stumps have rotted or sunk, packing raises the floor while leaving the actual fault in the ground — and the floor drops again.

Where the stumps have failed, the work is restumping. Where the ground has failed, it’s underpinning. All four options and what each costs: house levelling in Bendigo.

When jack and pack is the right call

Four conditions generally need to be met. Not one or two — all of them.

  1. The stumps are structurally sound along their full length. No rot at ground line, no splitting, no crushing at the top, no ant or borer damage. This is checked by getting under the house and inspecting them, not inferred from the age of the building.
  2. The stumps haven’t sunk. A sound stump that has pushed down into soft ground is a ground problem wearing a stump costume. Packing it lifts the house temporarily and the stump keeps going down.
  3. The ground underneath is stable. If reactive clay or settlement over old workings is driving the movement, packing treats the symptom. The house will need it again, and again.
  4. The bearers and joists are sound. Jacking a house with rotted bearers or borer-eaten joists can crack or split the timber it’s lifting from. Sometimes timber repairs have to happen before any lifting is possible.

Meet all four and jack and pack is the sensible, economical answer, and there’s no good reason to spend restumping money. Miss one and it’s a temporary fix sold as a permanent one.

When packing is the wrong answer

Being clear about this is more useful than selling the cheap option to everyone who asks for it.

Original timber stumps at end of life. On a gold-era Bendigo cottage the stumps may have been in the ground for 90 to 160 years. Red gum lasts remarkably well, but not indefinitely, and the failure point is almost always at ground line where moisture and oxygen meet. A stump that looks fine from the middle can be gone at the base.

Mixed stump ages across one house. Very common here. Someone replaced the stumps on the worst side in the 1970s with concrete and left the 1880s timber on the other. The two halves settle at different rates permanently. Packing levels it today and it’s out again in a few seasons, because the underlying cause is that the house is sitting on two different structures.

Ground movement rather than stump settlement. Reactive clay above, historic workings below — Bendigo has both, and neither is fixed by packing. Why Bendigo ground moves →

Slab-on-ground homes. There is nothing to jack and nothing to pack. Houses in Maiden Gully, Strathfieldsaye, Junortoun, Epsom and the other newer estates sit on a slab, and the only structural option is underpinning or slab repair.

A house that’s already been packed several times. Stacked packing that has been added to repeatedly is usually a sign the real fault was never addressed. More packing on top of old packing is not a repair.

What packing should look like — and what to look for underneath

Packing material varies. Seasoned hardwood packers are the traditional and still the most common choice in Victoria. Steel plate and pre-cast concrete pads are also used, particularly where clearance is tight or loads are higher.

What matters more than the material is the workmanship, and it’s visible if you know what you’re looking at:

  • Packing should be fixed in place, not loose. Loose wedges driven in and left can work their way out with seasonal movement and vibration.
  • Full bearing across the stump top. A packer sitting on part of the stump face concentrates load on that part.
  • Minimal stacking. One or two packers is normal. A tower of six is not packing, it’s a warning that the stump has dropped a long way and should have been replaced.
  • No bricks, no half-bricks, no random offcuts. These turn up under Bendigo houses constantly. Brick crushes and spalls under point load.
  • Untreated softwood offcuts don’t belong under a house. They rot, and they’re food for borers.

If you’ve got access to your own subfloor, a torch and a look is genuinely informative. Stacked timber, bricks, or packers that fall out when touched all tell you what the last person did and how well.

How long does jack and pack last?

Honest answer: it depends entirely on why the floor dropped, and that’s not a dodge — it’s the actual variable.

Where the stumps are sound and the house had simply settled onto its own bearers, well-executed packing on sound stumps lasts as long as those stumps do. The house isn’t fighting anything.

Where anything in the ground is still moving — clay cycling seasonally, settlement over disturbed ground, a stump slowly pushing down into soft soil — packing buys time rather than solving the problem. How much time depends on how fast the ground is moving, which is why measuring across a season sometimes tells you more than acting in the first week.

The comparison worth making is not “how long does packing last versus a restump”. It’s “is the thing that caused this still active?” If it isn’t, packing is enough. If it is, no amount of packing will hold.

[[VERIFY — do not publish a lifespan figure in years until real job data exists. The reasoning above stands without a number; a made-up number undermines it.]]

What jack and pack typically costs in Bendigo

Substantially less than any of the alternatives, which is the entire reason to establish whether a house qualifies before quoting anything larger.

  • Jack and pack: [[VERIFY — insert range]]
  • Partial restump: around $280 – $550 per stump installed
  • Full restump: typically $12,000 – $30,000
  • Underpinning: typically $15,000 – $40,000+

What moves the jack and pack figure:

  • Number of points needing packing — a single sagging corner versus a whole side.
  • Subfloor clearance — gold-era cottages often have 300 to 400mm to work in, which slows everything down.
  • Access — narrow side access on an original goldfields block means all material in and out by hand.
  • What’s found underneath — rotted bearers, previous bad packing, or stumps that turn out to be failing all change the scope, sometimes from packing to restumping.
  • Make good — patching and painting are usually excluded. Ask what’s in.

Indicative ranges, not quotes, and they shift over time. Full Bendigo cost guide →

Does jack and pack need a building permit?

[[VERIFY — this entire block must be confirmed against current Victorian Building Authority guidance and City of Greater Bendigo requirements before publishing. Permit thresholds for reblocking, restumping and packing are not the same, and getting this wrong on a structural-work page is the sort of error that costs credibility permanently. Do not publish a summary from general knowledge.]]

[[Once verified, cover: whether packing without stump replacement triggers a permit; the threshold at which it does; who is required to hold registration to carry out the work; and link to the relevant official page. Cite the source.]]

What is safe to say in the meantime: permit requirements differ between packing and stump replacement, so a quote should state which category the work falls into and who is responsible for lodging anything required.

How a jack and pack job gets worked out

  1. Floor levels measured across the whole house. The shape of the drop shows whether this is localised settlement or a whole side moving.
  2. Every stump inspected from underneath. Condition at ground line, condition at the top, evidence of sinking, and whether the stump layout is original or mixed. This is the step that determines whether packing is even on the table.
  3. Bearers and joists checked. Because they have to be sound enough to be lifted from.
  4. Cause established. Settlement, stump failure, or ground movement. Packing only suits the first.
  5. Scope confirmed in writing, including what happens if it changes. Occasionally a stump that looked sound proves otherwise once the load comes off it. How that’s handled and priced should be agreed before anyone starts, not negotiated mid-job.
  6. Lifting carried out gradually and packing fixed in place. Staged so movement is spread rather than shocked.
  7. Levels re-measured and recorded on completion.

[[MARKER — no crew, credential, insurance or guarantee claims on this page until a fulfilment partner is signed. Standing Rules 1 and 2. Passive voice retained throughout, as written.]]