Structural Repair Costs QLD 2026 - Get Free Quotes

Structural Repair Costs in QLD

Structural repairs in Queensland run from a few thousand dollars to forty-five thousand and beyond, and the spread reflects the fact that the term covers wildly different jobs. Correcting drainage that has been soaking a subfloor might cost $900 to $4,500. Restumping an average Queenslander costs $14,000 to $35,000 at $70 to $140 per stump, termite damage repair runs $3,000 to $25,000, and underpinning a settled corner costs $15,000 to $45,000 or more. Crack stitching sits at $1,600 to $6,500 and a tie-down upgrade in a cyclonic region at $3,000 to $15,000. Those are separate jobs, not variations on a theme.

Understand this before anything else: the remedy sets the price, and the diagnosis sets the remedy. Put an undiagnosed crack out to tender and the numbers will differ tenfold, because each contractor is guessing at a different cause and costing a different repair. One prices the least he can get away with; another prices the most he can sell. Neither is a price for what your house actually needs. Some price the smallest job possible, others the biggest they can justify.

That is why the structural inspection leads the way, and why its fee is well spent. An inspection costing between $650 and $2,600 establishes what is moving, why, and what will actually fix it, and it turns a set of guesses into a specification that contractors can price against. Lacking one, you are not weighing quotes but opinions. Set against what comes after it, the diagnosis is cheap. Getting the diagnosis wrong means buying the wrong one of those three remedies. Reverse that order and you finish up holding quotes for entirely different jobs.

Queensland has three dominant structural causes and each leads somewhere different. Termites eat structural timber while leaving the surface intact, so the repair is timber replacement after treatment. Stumps fail under elevated houses, so the repair is restumping. Reactive clay swells through the wet season and shrinks through the dry, so the repair is often nothing more than fixing where the water goes. Getting the diagnosis wrong means buying the wrong one of those three.

Underpinning is the word Queenslanders dread, and it is offered far more often than it is warranted. It is the correct answer where footings have failed and the movement is active, but it is the wrong answer where the real problem was a stump eaten from inside, a leaking pipe under the slab, or seasonal clay movement. Spending forty thousand dollars underpinning a house whose actual problem was a termite-eaten bearer is a genuinely awful outcome. Treat any underpinning quote that arrives before a diagnosis with real doubt. Mistake one for the other, either way, and it costs you.

Putting the house back together afterwards is a genuine cost, and nobody budgets for it. Relevelling a house reopens every crack it has ever had and creates some new ones, and the plastering, painting and door adjustments that follow are a genuine part of the project. On a full restump the making good can add several thousand dollars. Settle what the price covers, and what it does not, before you put your name to it. In a subtropical climate, plumbing work is genuinely structural work.

No contractor can price properly without a diagnosis and, ideally, an engineered design. Give them the inspection report, the RPEQ engineer's design if you have one, and clear access to the subfloor, and you will get quotes you can actually compare. Invite a contractor to guess and the figure means nothing. The quality of your paperwork sets the quality of the quotes. Almost nobody files gutters under structural maintenance, which is exactly why nobody clears them. Clear a leaking pipe from the list before anyone proposes anything major.

Diagnose Before You Buy

Diagnose, then design, then repair. Skipping a step is how the money goes badly. The inspection finds the cause, the RPEQ designs the fix where one is called for, and only then do contractors price something defined. Go straight to contractors and you end up with quotes for different jobs and no way to choose between them. The lowest number usually buys the weakest repair, and a building inspection alone will never settle a structural question. Any contractor relaxed about the order is not thinking about your house.

The costliest error is fixing what shows while whatever caused it carries on underneath. Patching a crack fed by a downpipe soaking the subfloor will produce a crack again next wet season, and replacing a bearer while termites remain in the structure is simply providing them with a fresh meal. Either way the money is gone, because nothing beneath the house has changed. Cause first, symptom second, and never the other way round. Replacing the timber without changing the conditions is doing half a job.

A structural engineer is the person who designs a structural remedy, and in Queensland they must be RPEQ registered. Restumping, underpinning, beam replacement and significant termite damage repair are structural work, and a building certifier will want an engineered design before issuing building approval. A contractor who tells you the engineering is unnecessary is offering work no certifier will pass and no insurer will touch. Beside the repair it specifies, the engineer's fee is small change. Restumping is neither exotic nor mysterious. Most contractors will tell you to do the lot rather than half.

Watching and waiting is a legitimate answer, and often the right one. Where an inspection cannot determine whether movement is active or historical, measuring a crack across a season costs a few hundred dollars and may reveal that the house is simply breathing with the wet and dry seasons. Committing to underpinning without knowing whether the movement is live is buying costly insurance against a risk nobody has measured. Patience saves real money here. Two similar houses can attract quite different restumping quotes on access alone.

The line between structural and cosmetic repair matters more than almost anything else on this page. Filling and painting a crack is cosmetic, and it is entirely appropriate where the cracking is seasonal and stable, which describes a great many Queensland homes. Replacing a stump or a bearer is structural, and it is only appropriate where something has genuinely failed. Get that wrong in either direction and money goes; a proper diagnosis tells you which side of the line you sit. Unapproved structural work is uninsurable if it goes wrong.

The Cheap Remedies First

In a state where the rain arrives hard and fast, water management is the cheapest structural repair available and often the only one required. Where a downpipe discharges under an elevated house, where a stormwater line is blocked or broken, where the ground falls towards the building, or where a garden bed has been banked against a wall, water is being delivered where it should not be and the structure is responding. Correcting that costs $900 to $4,500 and may stop the deterioration entirely. Any competent contractor should look there before anywhere else. Nobody should reach for underpinning first. Because nobody knows the depth, the quotes carry provisional sums.

Stormwater correction is the specific job and it is plumbing rather than building. Connecting downpipes properly into a stormwater drainage system that carries water away from the building, clearing blockages, and repairing broken lines removes the water source driving the problem. In a subtropical climate this is genuinely structural work even though it looks like plumbing. It is also the cheapest thing anywhere on this page. No amount of underpinning will fix a stump eaten from inside.

Gutters are the humblest structural maintenance in Queensland and the most neglected. A gutter so full of leaves that it overflows in every storm is effectively watering the ground along the entire length of the wall, and in a state where a single afternoon can deliver a week of rain that matters enormously. Two hundred dollars of gutter cleaning stops a problem that runs into tens of thousands. Hardly anyone files it under structural maintenance, which is exactly why it never gets done. Where the wall suits it, stitching is an elegant piece of work.

Subfloor ventilation is the cheap remedy that protects an elevated house from needing the expensive one. A damp, poorly ventilated subfloor rots stumps and bearers steadily and invites termites at the same time, and improving cross-ventilation through an underfloor ventilation installation slows or stops both. Done after a restump, it protects the money you have just spent. Doing it first may push the need back by years. Reclaimed bricks are often the answer in an older home. Coastal humidity and salt air accelerate corrosion considerably.

Undetected leaks beneath a house must be ruled out before anything expensive is proposed. A weeping supply pipe or a cracked sewer beneath a slab can saturate the clay in one spot for years, heaving the footing above it, and no amount of underpinning will help while it continues. water leak detection pins it down without anyone opening up the yard. Clear that before anybody mentions a pier. It is among the least understood consequences of knocking a room open.

The levels and the site drainage are the other inexpensive lever. Ensuring the ground falls away from the building, removing garden beds banked against walls, keeping soil away from timber, and providing surface drainage where water ponds all reduce the moisture reaching the structure. A landscaping contractor reshaping the ground can help enormously or make things markedly worse. Sort the levels out before anybody rebuilds the structure. That storm damage report needs to be defensible.

Termite Damage Repair

Termite damage repair is a distinctively Queensland job and it has one iron rule. Treatment comes before repair, without exception, because replacing eaten timber while the colony remains simply gives them a fresh meal and you will be doing the job twice. A pest control treatment deals with the infestation, and only then does the structural repair proceed. Any contractor willing to replace timber before the termites are dealt with is not thinking about your house. Approval is what ensures the repair is actually adequate. The home warranty scheme gives you real recourse if the work is defective.

The scope is genuinely hard to establish until the timber is opened up. A colony hollows out a bearer, a stump or a wall frame while leaving the surface and the paint film intact, so nobody knows how much sound section remains until the affected members are exposed and probed. That is why termite repair quotes frequently carry provisional allowances rather than fixed sums. A contractor who quotes a firm price without opening anything up is guessing. Putting the house back together is what the work does, not a fault in it.

The structural assessment is engineering rather than pest work and that distinction matters. Someone must determine how much section is left in an eaten bearer, whether a stump can still carry its load, and what must be replaced rather than patched, and that judgement should come from an RPEQ registered engineer. Timber that looks perfectly sound can be hollow. This is where the pest report ends and the engineering begins. Easing the doors is small work, but it belongs in the budget.

The repair itself is skilled carpentry to an engineered detail. Affected timbers are propped, cut out and replaced with new treated timber sized to carry the load, connections are made properly, and the work is inspected before it is closed up. Cost runs $3,000 to $25,000 depending on how much structure has been eaten and how accessible it is. Access under the house is, as always, the biggest variable. Skip that step and there goes the money, won or lost. Let nobody rush you past the paperwork.

Prevention is part of the repair rather than an optional extra. Termite management systems, physical barriers, ant caps on stumps, clearance between soil and timber, and adequate subfloor ventilation are what stop the next colony finding the same meal. Replacing the timber without changing the conditions that attracted them is doing half a job. Build for the climate the house actually stands in. Staying put through it is disagreeable rather than impossible.

Restumping

Restumping is the defining structural repair of Queensland's elevated housing and it is routine, well-understood work. Timber stumps rot at ground level, are eaten by termites, and settle into reactive clay, and when a stump fails the bearer above it drops, taking the floor and the walls with it. Replacing those stumps with new concrete or steel stumps on proper footings, and relevelling the house in the process, is restumping. It is neither exotic nor mysterious. Those staged inspections are all that separates you from a buried defect.

What it costs turns on how many stumps there are and how many have gone. Individual stumps cost $70 to $140 each supplied and installed, and a typical Queenslander may sit on anywhere from forty to a hundred stumps, which puts a full restump at $14,000 to $35,000 depending on the size of the house and the access. Partial restumping, replacing only the failed stumps, is cheaper but leaves the rest in the ground with the same age and the same fate ahead of them. Most will tell you to replace the lot. The money is really decided at the diagnosis. A quote with no answer on unknown damage is not a complete quote.

Clearance under the floor is the biggest variable, and it explains most of the price. A subfloor with generous clearance that a person can move through easily is straightforward, while one with three hundred millimetres of headroom requires excavation to work at all, and that is slow, manual and expensive. Squeeze the clearance and the cost per stump climbs sharply. This is why two similar houses can attract quite different restumping quotes. The surprises hide in the making good.

Concrete and steel stumps are the standard choice now and for good reason. They do not rot and they are not eaten, whereas treated timber has a finite life even with treatment, and in a state with this much termite pressure that matters. The material choice is worth discussing with your contractor and your structural engineer. For most homes, concrete or steel is the sensible long-term answer. Salt air attacks every steel fixing in a coastal house.

The house comes up on jacks, and that catches people out. Jacks take the weight of the building, the old stumps are removed, the new ones are installed on proper footings, and the house is relevelled onto them, which means floors that have been sloping for decades will be brought back towards level. That relevelling is exactly what reopens the cracks in the plaster above. The making good is neither optional nor a fault. An independent diagnosis costs a sliver of the repair it might prevent. No structural repair survives a wet subfloor.

Restumping requires building approval and an engineered design in most cases. It is structural building work, a certifier will want documentation, and the contractor should be a licensed builder working under a proper contract with home warranty cover where the value requires it. Anyone offering to restump a house without approval is offering unapproved structural work that will surface at sale. And if it moves, no insurer will look at it. Put them in the right order and a frightening problem becomes manageable.

Underpinning

Underpinning takes the existing footings down to ground that will carry them, and it answers a footing that has failed. Where a lowset house on a slab or a strip footing has settled because the ground beneath it has moved, shrunk or been undermined, piers are installed beneath the existing footing and the load is transferred onto them. It is a significant intervention. It is dear and disruptive, and it belongs last on the list.

Piers are priced one by one, and the depth is what nobody knows. Individual piers cost $1,300 to $2,600 each, and a settled corner might need six or eight of them, which puts a typical job at $15,000 to $45,000. Nobody can say in advance how far the piers must travel to find something solid, and through a deep Queensland clay profile that can be a very long way. That unknown is why underpinning quotes arrive with provisional sums. A repair priced off a photograph is a number, not a quote.

The excavation is heavy, and it is what makes the job so intrusive. Working under a standing house means taking out the ground beneath it in sequence, so the building is never left unsupported, and that is slow, careful, regulated work. The WorkSafe Queensland rules on excavation and working beneath a propped building are not a formality. It is not a job for a keen amateur and a shovel.

Underpinning is genuinely necessary less often than it is proposed, and in Queensland the reason is specific. In an elevated house, the problem is almost always a stump rather than a footing, and no amount of underpinning will fix a stump that has been eaten from inside. Even in a lowset house, seasonal clay movement and a leaking pipe are both far more common than genuine footing failure. Insist on a diagnosis before anyone opens the ground. Termites do not care how much you spent on your kitchen.

When underpinning does go ahead, the design must be engineered and approved. An RPEQ registered engineer determines the pier locations, depths and capacities, the building certifier issues approval, and the work is inspected at stages, because the consequences of getting it wrong are severe. A concreting contractor following the drawing is doing it properly; one working by eye is not. Never take underpinning without an engineered design behind it.

Crack Stitching and Masonry

Where the movement has stopped and the brickwork simply needs pulling back together, crack stitching is the repair. Stainless bars are bedded into slots cut across the crack in the mortar joints, sewing the wall back into a single working element. It costs $1,600 to $6,500 depending on the extent and it is far less invasive than rebuilding. Used in the right place, it is elegant work. The ground can wait, and so can you before parting with forty thousand dollars.

Everything hangs on the movement having stopped. Stitch a wall that is still moving and the crack simply reappears elsewhere, or the stitching lets go, and the money is gone. Precisely why the diagnosis matters, and why an inspector may want the crack watched first. Stitch what has stopped moving; chase the cause of what has not.

Where the brickwork is too far gone to stitch, sections come out and go back. Crushed bricks, mortar gone across a wide face, or a badly bowed wall all mean cutting out and rebuilding, and that is bricklaying work. Matching bricks in an older home can be a challenge worth discussing early. Reclaimed bricks usually solve it. A downpipe under an elevated house is a structural problem wearing a plumbing disguise.

In older brick houses the lintels over windows and doors fail regularly. Corroding steel expands and jacks the brickwork above it, so the tell is horizontal cracking directly over an opening. Coastal humidity and salt air accelerate the corrosion considerably. Replacing the lintel costs $2,500 to $8,500 and it is a defined job with a defined remedy.

Render hides whatever the masonry beneath is doing, which complicates everything. A cracking rendered wall may be render failing on its own, or it may be faithfully reporting a crack in the brickwork behind, and the only way to know is to take some off and look. Any rendering laid over an unresolved structural crack will split along the same line. Find out what is behind it before rendering again. A wet subfloor is an invitation, and something always accepts it.

Tie-Downs and Wind

Tie-down upgrades are a Queensland structural repair that barely exists elsewhere. In a cyclonic wind region, the chain of connections that holds a roof down runs from the sheeting through the battens, the rafters, the frame and the walls into the footings, and in an older house built before modern wind codes that chain may be inadequate, corroded or broken. Upgrading it costs $3,000 to $15,000 depending on the house and the access. In the far north it is genuinely worth doing.

The connections corrode, and that is a repair rather than a design flaw. Salt air and humidity attack steel straps and fixings, particularly in coastal locations, and a tie-down strap that has rusted through is a strap that is no longer doing anything. An inspection identifies which connections have failed and a roofing trade working to an engineered detail replaces them. It is unglamorous work that matters enormously in a cyclone. Water arriving where it should not is the single most common villain in this state.

Bracing is the other half and it is frequently lost in a renovation. Somebody who removed an internal wall to open up a kitchen may have removed bracing the house depended on to resist racking under wind load, and the fix is to reinstate that bracing capacity elsewhere, which requires design rather than guesswork. It is one of the least appreciated consequences of opening a floor plan up. An engineer will identify it, and a carpenter will build the replacement.

Storm damage repair is the reactive version of the same work and it is often urgent. After a severe weather event, an engineer establishes what has actually been damaged, what is safe and what must be repaired, and the report is frequently what an insurer relies on before anything is paid. Where a roof has lifted or a wall has moved, this is engineering rather than handyman work. The report needs to be defensible. A stump eaten from inside looks exactly like a stump that is fine.

Doing the tie-down upgrade during other work is far cheaper than doing it alone. If the roof is coming off for a roof restoration, or the ceilings are down for a renovation, the connections are accessible and the marginal cost is small, whereas doing it as a standalone job means opening things up specifically. Sequencing it with other work is the sensible approach. Ask the question before the roof goes back on.

Approval and Compliance

Structural repair is building work, and in Queensland it generally needs building approval. Restumping, underpinning, beam replacement, significant termite damage repair and tie-down upgrades all alter the structure, and a private building certifier will require an engineered design before issuing approval and will inspect at mandatory stages. None of that is red tape. It is what ensures the repair is actually adequate. The subfloor tells the honest history of an old Queenslander.

Your certifier is a private licensee, not a council officer. You or your builder appoint a licensed certifier, who checks the documents, issues the approval, and carries out the mandatory inspections as the job runs. They are the gate through which structural repair passes. Engaging a certifier early, before any demolition or stripping out begins, makes the process considerably smoother.

The contractor should be licensed and you can check that in minutes. Building work of this magnitude requires a licensed builder, the Queensland Building and Construction Commission maintains the register, and residential work is covered by the statutory home warranty scheme which gives you real recourse if the work is defective. Unlicensed operators offering cheap restumping are offering unapproved work with no warranty cover. The saving is imaginary and the risk lands entirely on you. Wet clay shoves back harder than anyone expects.

Unapproved structural work comes out at sale, and it comes out badly. A purchaser's building inspector or conveyancer who discovers that a house was restumped, raised or underpinned without approval will raise it, and resolving it retrospectively is difficult, expensive and occasionally impossible. In Queensland, unapproved raising and building in under is a genuinely common finding. Doing it properly first time costs less than repairing the paperwork afterwards.

Where the repair sits inside a bigger project, get the order right. A house being restumped and then extended should be restumped first, because relevelling the floor afterwards would distort the new work, and any home extension builder will want the structural issues resolved before they start. Structure before addition, every time. Getting that order wrong is expensive to unwind. Probing the timber is the only way anyone learns the truth.

The Making Good

The making good is the cost everyone forgets, and it is entirely real. Lifting a house and relevelling it moves the walls back towards where they used to be, which reopens every crack the movement created and frequently creates new ones, and the plaster, paint, doors and windows all need attention afterwards. On a full restump it will add several thousand dollars. It is not a fault in the work; it is a consequence of it.

Plaster repair trails almost every structural job. Old cracks split open, sheets part at the joints, and cornice pulls off the ceiling as the geometry shifts, and a plastering and gyprock repair service puts it back. Plaster before the structural work is done and the money is gone, because it will split again at once. Structure first and cosmetics second, without exception. Render conceals the evidence; it does not remove it.

After a relevel, the doors and windows nearly always need work. A door that had been planed to fit a sloping frame will no longer fit once the frame is level again, and windows that had jammed may free up or bind differently. Planing, rehanging and easing are all part of putting it right. Small work, but it belongs in the budget.

Painting finishes the job, and doing it properly beats touching it up. New plaster wants sealing, patches drink paint differently, and touching up only the repairs leaves a mottled wall, so a painting contractor doing whole walls corner to corner is what looks finished. Where floors have been relevelled, the flooring may need attention too. Budget for the finish as well as the fix. A rusted strap is a strap that is no longer doing anything.

Let the house settle before the finishing trades arrive. The structure should be given time to stabilise onto its new stumps or piers before the plaster is repaired and repainted, because doing the cosmetics too early means doing them twice. A short wait more than pays for itself. Ask how long they want before the painters arrive.

The Process

It starts with the inspection and the diagnosis, and everything else follows from them. A structural inspection establishes what is moving and why, and it produces a report telling you whether you need drainage work, termite treatment and timber replacement, restumping, underpinning or nothing at all. Skipping that step is the commonest and costliest mistake homeowners make. There the money is either saved or thrown away. A licence check with the QBCC takes a few minutes and settles the question.

Where termites are involved, pest control treatment comes next and it comes before everything else. The colony is dealt with, the treatment is documented, and only then does the structural repair proceed, because replacing timber into an active infestation is throwing the money away. An engineer designing a repair will want confirmation the termites are gone. This order is not negotiable.

Where a structural remedy is needed, the RPEQ engineer designs it. The design says what goes where, how deep and to what capacity, and it is what the certifier reviews and the contractor builds to. With no design, contractors are pricing their own guesswork. The engineered design is the thing that makes the quotes comparable. Unapproved work is a problem you inherit and then pass along.

Approval comes next, and the contractor signs a proper contract. The certifier reviews the design, issues the approval and schedules the mandatory inspections, and you engage a licensed builder under a written contract with home warranty cover where the value requires it. That paperwork is what protects you. Do not let anyone hurry you past it.

The work is disruptive, though usually shorter than people fear. A full restump typically takes one to two weeks on site, underpinning takes two to four weeks depending on the piers and the depth, and termite repair depends entirely on how much timber must come out. The house is generally habitable throughout though noisy and inconvenient. Remaining in the house through it is unpleasant but perfectly possible. Relevel a house and the walls move, and they will tell you about it.

The certifier calls inspections at set stages, and that is real protection. The certifier or the engineer inspects before critical elements are covered up, which on an underpinning job means inspecting the excavation and the piers before backfilling, and on a termite repair means inspecting the new timber before it is closed in. Insist those inspections happen, and that you are given the evidence. They are all that stands between you and a buried defect.

What Affects the Cost

The remedy dominates everything, and it swings by an order of magnitude. Drainage correction is a few thousand dollars, termite repair is three to twenty-five thousand, restumping is fourteen to thirty-five thousand, and underpinning is fifteen to forty-five thousand and beyond. Which of them you need is settled by the diagnosis, not by preference. That is why the money is really decided at the diagnosis. Jacks carry the house while the new stumps go in, and then they come out.

Access under the building is the biggest practical variable in this state. A roomy subfloor is easy to work in; one with no headroom must be dug out by hand before a single stump moves, and the labour climbs accordingly. A house with tight side access that prevents machinery reaching the work adds cost again, since every barrow of concrete must be carried. Access is why two similar houses attract very different numbers.

The unknown scope is a real feature of termite repair and it should be priced honestly. Nobody knows how much sound timber remains until the affected members are opened up and probed, which is why quotes carry provisional allowances rather than fixed sums. Ask how the contractor handles the situation where the damage is worse than assumed. If they cannot answer that, the quote is unfinished. The certifier is a gate, not a wall.

The number of elements drives the price directly on restumping and underpinning. Stumps are priced one by one and piers likewise, so the size of the house and the scale of the failure go straight into the total. Partial repairs are cheaper up front but leave the remaining original elements with the same future ahead of them. Set the partial saving against the odds of doing it all again.

The making good, and the trades behind it, round out the figure, and they are not trivial. Plaster, painting, door adjustments and floor coverings all follow a relevelling, and where a tiling repair is needed as well, that is real money. Ask plainly what falls inside the quote and what does not. That is where the surprises are hiding. The cheapest structural work you will ever do is a ladder and an afternoon.

Structural Repair Costs Across Brisbane

Across Brisbane, repair costs are driven by the age of the housing and the access rather than the postcode. The inner suburbs are dominated by elevated timber houses on stumps and are where restumping and termite repair are most common, while the outer suburbs have more lowset homes on slabs where reactive clay and drainage are the issues. Access under the house is tighter in the inner suburbs, which raises the cost of everything including any underpinning. Termite pressure is high across the whole city, so a termite inspection is never wasted.

The inner Brisbane suburbs are the restumping heartland and the pricing reflects the access. Streets of elevated timber houses on narrow blocks, many a century old and altered repeatedly, produce a steady stream of restumping and termite repair work, and contractors there do it constantly. Tight access means every stump and every bag of concrete is carried rather than driven. That access premium is honest, not opportunism. Access alone can separate two similar houses by thousands.

Structural Repair Costs in Regional QLD

In regional Queensland, the wind region and the housing type matter as much as travel. Restumping is common everywhere there are elevated houses, termite pressure is high across the state and higher in the warmer north, and in the cyclonic regions tie-down upgrades and storm damage repair become a significant part of the work. Access is generally better outside the city, which brings down the cost of carpentry under the floor. Confirming the contractor is licensed matters just as much out there.

The far north carries a repair type the rest of the country rarely sees. Tie-down upgrades, corroded connection replacement and storm damage repair are routine work in Townsville, Cairns and the northern coastal centres, and they are engineering jobs rather than handyman ones. Salt air accelerates corrosion in every steel fixing. Contractors up there understand this in a way southern trades do not. Provisional sums exist because nobody can see inside timber.

Out on a rural block the outbuildings come into it. Sheds, machinery slabs, water tank stands and old farm structures all have structural questions, and an exposed rural site in a high wind region is a demanding brief. Sometimes the honest answer for a farm building at the end of its life is a demolition rather than a repair. Rolling several buildings into one job spreads the travel sensibly.

Wherever the house stands, get the diagnosis before the quote. A contractor pricing a repair nobody has diagnosed is guessing, the guesses will differ enormously, and you will have no basis on which to choose. Inspection first, engineering second, quotes last. That running order is what protects your money. Brisbane's inner suburbs restump houses the way other cities repaint them.

What to Look Out For

The most important thing to guard against is any repair that starts before the termites are dealt with. Replacing eaten timber while a colony remains in the structure is providing them with a fresh meal, and you will be paying for the same repair twice. Ask for the treatment documentation before the carpentry begins. A contractor who is relaxed about the order is not thinking about your house.

Be very sceptical of an underpinning quote on an elevated house. In a Queenslander, the problem is almost always a stump rather than a footing, and underpinning will not fix a stump that has been eaten or has rotted at ground level. A contractor proposing underpinning without having been under the house has not diagnosed anything. That single fact should make you pause. Up north, the tie-down chain is the whole conversation.

Be very wary of anybody keen to skip the engineering or the approval. Restumping and underpinning are structural building work requiring an RPEQ engineered design and approval from a licensed certifier, and an operator offering to do it cheaply without either is offering unapproved, uninsured work with no home warranty cover. The apparent saving is entirely illusory. Few tests of a contractor's honesty are clearer.

Be alert to a quote silent on the making good. Relevelling a house reopens every crack, and a quote covering only the structural work leaves you with a house full of fresh cracking and a bill you did not expect. Ask explicitly whether plaster, painting and door adjustments are included. Leaving them out is not a saving; it is a deferral. The diagnosis is the cheapest part of the job and the most valuable.

Make sure the water is sorted before anyone rebuilds the structure. Restumping a house whose subfloor is soaked by a broken downpipe will produce rotted stumps and fresh termites again, and no structural repair survives a wet subfloor. Any contractor who does not ask where your water goes, and whether the gutters overflow, has not thought about your problem. Fix the cause, then the effect.

Last, take the diagnosis from somebody who is not selling the cure. A building inspection or an independent RPEQ engineer has no stake in whether you underpin, whereas a contractor who both diagnoses and profits from the largest possible remedy has an obvious conflict. An independent diagnosis costs a fraction of the repair it might avoid. On a decision of forty thousand dollars, a second opinion is cheap. On a large remedy, a second opinion is money very well spent.

What to Look for in a Quote in QLD

A good repair quote is built on a diagnosis and a drawing, not a photograph. It should reference the RPEQ engineer's design, state exactly what is being done and where, confirm that building approval will be obtained, give the builder's licence number, and set out what happens if conditions differ from the assumptions, particularly the extent of termite damage or the pier depth. It should itemise the making good as well, plaster repair included. Missing those, you are not comparing like with like.

Ask every contractor what they believe caused it. Their answer tells you immediately whether they have thought about your house or are simply quoting their standard remedy, because a contractor who has been under the house, looked at the drainage and checked for mud tubes will have a view. Someone with none has not investigated. No question tells you more. Concrete does not get eaten, and that is the entire argument.

Judge the quotes on scope and compliance, not the number at the bottom. A cheaper quote that drops the approval, skips the engineering, ignores the making good, or does half a job where a whole one is needed is not cheaper but incomplete, and the difference will catch up with you. Post the job once on The Quote Yard and several Queensland contractors can respond, so you can see what each covers. On structural work, compliance is part of the purchase.

Finally, confirm the licence, the warranty and the sequence before you commit. Check the builder's licence with the QBCC, confirm the home warranty cover applies, and make sure the work is sequenced so the termites are treated and the structure repaired before any finishing or renovation work begins. Ask who makes the house good again, and when. Get the diagnosis, the design and the paperwork right before you start, and a frightening problem becomes a managed one.