Rising Damp Ipswich connects owners of older Ipswich homes with independent, QBCC licensed damp specialists. We start by working out whether what you have is actually rising damp — in this city it is very often condensation, a drainage fault, or a room that was built in underneath a Queenslander without a damp course.
Talk it throughTell us what the wall is doing.
We connect Ipswich property owners with independent damp specialists holding the appropriate QBCC licence. We are a referral service and do not carry out the work ourselves.
Rising Damp Ipswich arranges damp assessments across Ipswich and the western corridor. This page is about rising damp in Brassall, QLD.
An even horizontal line, usually somewhere between 600mm and 1.2m above the floor, on a ground floor wall. It marks the height where water stops climbing because it evaporates as fast as it arrives. Condensation and leaks do not draw a level line.
Salt left behind when the water evaporates out of the wall. It can look like a dusty white fur, or like crystals in the mortar joints. It often looks worse in a dry week, which confuses people, because dry weather is when the evaporation is fastest.
Not a bubble in one spot but a strip of blistering that follows the same height along the wall. Modern acrylic paint on an old solid wall traps water behind it, so the paint lets go before the plaster does.
Timber in contact with a damp wall swells, then rots from the back. A skirting that gives under a thumbnail while the face still looks sound is a good early sign, and it is the one most often painted over rather than investigated.
Particularly in a room that has been built in underneath, or a front room that gets no sun. The smell arrives before the staining does, and it is the reason a lot of people ring in the first place.
The ceiling is dry, the top of the wall is dry, and the damage is all in the first metre. That distribution is the strongest single indicator that water is arriving from below rather than from a roof, a gutter or a pipe.
Brassall is mostly postwar and modern, and most of it does not get rising damp at all. That is worth saying plainly, because the honest answer for a lot of Brassall houses is that the wet wall is a leak, a shower, or condensation. The exceptions are the older cottages along the original road and the houses where a slab or path has been added hard against an older wall.
Brick veneer on concrete slabs across most of the suburb. A slab poured on a membrane, with a brick skin standing clear of the ground on its own edge beam, has no route for ground water to climb. A damp patch in a house like this has a different cause and needs a different trade, and sending someone a damp quote for it would be dishonest.
Undulating ground with clay in the lower parts. Where damp does appear on newer housing, the cause is nearly always something at the surface — a garden bed built above the slab edge, an air conditioning condensate line, or a leaking irrigation fitting against the wall. Those are worth eliminating before anyone drills a hole.
Ipswich has a humid subtropical climate with most of its rain arriving between November and March, often in heavy falls rather than steady drizzle. That pattern matters for damp in two ways. Ground that is saturated repeatedly through a wet summer keeps a wall wet long enough for water to climb it, and the same humidity produces condensation on cool internal surfaces through the cooler months. The two look alike to an owner and behave completely differently. A wall that is worst in February and improves by August is behaving like ground water. A wall that is worst on cold mornings, in a bathroom or a closed-up room, is almost certainly not.
In Ipswich the honest first answer is often no. Condensation, a shower leak, a failed downpipe and reactive clay all produce a wet wall, and none of them is rising damp.
Pre-1900 solid masonry usually has no barrier. Interwar brick usually has a bitumen one that is now old. Anything on a modern slab has a membrane and is not a candidate.
If the property has been through 2011 or 2022, some of the salt in that wall arrived from the river, not from the ground. That changes the treatment.
A chemical course injected into the mortar bed. It stops new water climbing. It does nothing about the water and salt already in the wall.
The full sequence, and why the order matters in Brassall, is set out on our how it works page.
Rising damp is ground water climbing a wall. Everything else - the salt, the lifting paint, the smell - follows from that one fact.
This is the most common version of rising damp in Ipswich, and it is created by a renovation rather than by the original house.
Ipswich is the oldest provincial city in Queensland, which means a share of its masonry predates the damp proof course entirely.
A damp course is not permanent. The two materials Ipswich houses actually have fail in completely different ways.
This is the most common misdiagnosis in South East Queensland, and it goes both ways. Plenty of rising damp gets dismissed as condensation, and a great deal of condensation is treated as rising damp at considerable expense.
If your property has been through 2011 or 2022, this question has to be answered before anybody quotes on a damp course.
What a damp job costs in Ipswich depends on far less than people expect. Wall thickness, access, and how much salt-affected render has to come off account for most of the variation. A single skin nineteenth century wall in the CBD is a different job from an interwar cavity wall in Eastern Heights, and the quote should say which one you have.
Indicative ranges for damp work in Ipswich, so you can sanity-check a quote before you accept it. Every fixed price follows an on-site assessment, because the two things that drive the cost — wall construction and how much render has to come off — cannot be judged from a photograph.
| Work | Indicative range | What it covers |
|---|---|---|
| On-site assessment and written diagnosis | $450 plus GST | Readings taken at intervals up each affected wall, an external check of ground levels, paving, downpipes and any built-in-under work, and a written finding. Where there is cracking it also says plainly whether what you need is a damp specialist or a structural engineer. |
| Chemical damp proof course, injected | $180 to $320 per linear metre | Drilling and injecting a cream or fluid barrier into the mortar course, then making good. The range depends on wall thickness, whether it is single or double skin, and access. A solid nineteenth century wall costs more than an interwar cavity wall. |
| Salt-affected render removal and replacement | $120 to $260 per square metre | Taking off contaminated render and plaster, allowing the wall to dry, then re-rendering in a system that lets the wall breathe. This is usually the larger half of the bill and the half people do not expect. |
| Subfloor ventilation to a Queenslander or built-in-under room | $1,800 to $4,500 | Additional vents, or powered extraction where the underfloor cannot be ventilated passively. Often the entire answer on a timber house, where no damp course is involved at all. |
| Drainage and ground level correction | $900 to $6,000 | Lowering garden beds and paving away from the wall, correcting falls, and taking downpipes into a line rather than discharging at the base of the building. Frequently the cheapest item on this list and the one that does the most. |
Prices are indicative ranges only. Every fixed price quote follows an on-site assessment.
If you are buying, yes, and read what it says about moisture carefully. A building and pest report flags moisture but is not a damp diagnosis, and the two get confused. If a report has flagged damp on a house you are buying in Ipswich, that is exactly the point at which a specific assessment is worth the money.
Not if the cause was dealt with rather than covered. A correctly installed barrier does not wear out on any timescale you need to care about. What does come back is damage from salt left in the wall, and damp from a garden bed rebuilt against the wall a year later. Both are avoidable, and both get blamed on the treatment.
You can, and it will look better for a season. Sealing the inside face of a wet wall does not stop the water arriving, it only stops it leaving where you were watching. It generally reappears higher up the wall or in the adjoining timber, and the second round of damage is worse than the first.
The damp itself is not, but persistently damp walls support mould, and mould matters for asthma and allergies. If someone in the house has a respiratory condition, that is a fair reason to deal with it sooner rather than watching it for another season.
Tell us what the wall is doing. Tell us what the wall is doing and roughly when the house was built, and we will put you in touch with an independent Ipswich damp specialist. If it sounds like condensation or a drainage problem rather than rising damp, we will tell you that instead of arranging a quote.
We connect Ipswich property owners with independent damp specialists holding the appropriate QBCC licence. We are a referral service and do not carry out the work ourselves.
We take enquiries across the Ipswich local government area and the western corridor.
Rising Damp Ipswich