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 Booval, 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.
Booval is Federation and interwar housing on the eastern side, close enough to the old industrial belt that the streets were built early and built solid. The damp complaint here is usually salt rather than moisture — the wall looks dry and there is a white bloom across the brick or the paint is lifting in flakes that come away with a fingernail.
A lot of Booval brick is solid rather than cavity, and where a damp course exists it is likely to be slate or an early bitumen. The visible damage is often disproportionate to the amount of water involved, because it is the salt left behind by evaporation doing the work rather than the water itself. That is why a wall can look worse in a dry month.
Gently sloping ground with reasonable drainage. The problems here are localised: a downpipe discharging at the base of a wall, a rainwater tank stand, a garden bed retained against the house. Each of them puts water in one small place, which is why Booval damp is more often one wall than a whole house.
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.
The internal readings say how high and how wet. The external check says why — ground levels, paving, garden beds, downpipes, and render that stops the wall drying.
Remove contaminated render, let the wall dry, and finish in a breathable system. Skipping this step is the most common reason a damp repair comes back looking like a failure.
The full sequence, and why the order matters in Booval, 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.
A treated wall dries at roughly a month per 25mm of thickness, in good conditions. A 225mm solid wall is therefore most of a year. Anyone promising a finished, repainted wall a fortnight after injection is either not treating rising damp or is about to trap the moisture behind new plaster.
The independent evidence for electro-osmotic and wireless systems is weak, and several reviews have found no measurable effect against an untreated control. We would not recommend spending money on one before a physical barrier and the ground conditions have been dealt with. If you are considering one, ask the supplier for a controlled trial rather than testimonials, and get the guarantee terms in writing.
An assessment is $450 plus GST. Injection runs $180 to $320 per linear metre depending on wall thickness and access, and render replacement $120 to $260 per square metre. Drainage and ground level work runs $900 to $6,000 and is often the item that does the most. Every figure here is indicative and a fixed price follows the assessment.
Often, yes. If a garden bed, a path or a concrete driveway sits above the damp course, it is carrying water past a barrier that is working perfectly well. Lowering the ground outside is cheap, permanent and frequently the entire answer. A specialist who does not look outside before quoting is not doing the assessment properly.
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