Rising Damp Specialists · Wooloowin
Salt tide-marks, peeling paint and that musty smell along the skirting boards? We diagnose and permanently treat rising damp in Wooloowin's older Queenslanders and brick homes — with a proper diagnosis and a permanent fix, not a paint-over.
Tell us what you're seeing — or what your building report said — and we'll arrange a no-obligation on-site inspection and written quote.
We connect you with QBCC-licensed damp specialists servicing inner Brisbane. No obligation. The specialist's assessment fee is $450 plus GST. That includes up to two hours on site diagnosis, that may include camera inspection of the stormwater drains.
Why Wooloowin homes are prone to damp: Wooloowin is full of interwar Queenslanders on big blocks, on the southern side of Kedron Brook. Its ridge/railway core sits high, but the low streets near the brook flooded in February 2022, when Kedron Brook broke its bank across the Kalinga Park area. Enclosed interwar subfloors (with decorative batten screens) plus that damp creek-flat ground make for persistent subfloor moisture and rising damp.
Know the signs
Rising damp only affects ground-floor walls, because the moisture comes from the soil. If you're seeing these signs low on the wall, it's worth a proper look before it damages the timber and brickwork.
SIGN 01
A horizontal stain about a metre up the wall, where the rising moisture peaks and evaporates.
SIGN 02
Efflorescence — ground salts crystallising on the brick or plaster surface.
SIGN 03
Finishes lifting and crumbling near the base of the wall.
SIGN 04
Soft, damp or warped skirting boards, architraves and floor timbers.
SIGN 05
A persistent damp, earthy odour, often strongest in closed rooms and low cupboards.
SIGN 06
In bad cases, the face of the brick crumbles away as the salts destroy the mortar.
Local knowledge
Wooloowin (4030) is a suburb of gracious interwar Queenslanders on large blocks, with older 1880s workers' cottages from its railway origins. A local quirk matters for damp: many of the interwar Queenslanders have decorative timber batten screens enclosing the subfloor — which looks lovely but chokes the under-house airflow the house was designed around.
The suburb's older ridge and railway core sits on higher ground, but it grades down to the low Kedron Brook flats on its northern side. In February 2022 — a record for the Kedron Brook catchment, far bigger than 2011 — the brook broke its bank and inundated the Kalinga Park area across Kalinga and Wooloowin. A flooded subfloor stays wet for a long time, and the low creek-flat ground holds a high water table between floods. Check your address on Brisbane City Council's Flood Awareness Map.
So Wooloowin's damp is often a subfloor story: enclosed under-house spaces that can't dry, on damp low ground. We check rising and subfloor damp at the assessment — usually restoring airflow with subfloor ventilation and adding a chemical DPC where masonry is wicking moisture.
Nearby suburbs
How we fix it
Rising damp is often misdiagnosed as condensation or a leak, which need completely different fixes. We diagnose the actual cause first, then treat the source — not just the stain. It’s the same rising damp treatment in Brisbane we bring to every inner-suburb Queenslander.
We inspect with moisture meters, confirm it's genuinely rising damp, and rule out condensation or lateral damp.
We inject a new DPC into the mortar course — a water-repellent barrier that stops moisture rising, without removing bricks.
We strip salt-damaged plaster and apply a salt-retarding render so the damage doesn't return through the new surface.
We make good the wall and back the work with a 2-year warranty. If it's needed, we'll advise on subfloor ventilation too.
Our services
A new damp-proof course injected into the wall to permanently stop rising damp.
Learn more →Fans and vents to dry out the subfloor of Queenslanders on brick piers.
Learn more →Removing hygroscopic salts and re-rendering so the damage doesn't creep back.
Learn more →Fixing damp bridging from garden beds, paths and retaining walls.
Learn more →Transparent pricing
Rising damp treatment is usually priced by the linear metre of affected wall, so the size of the problem drives the cost. As a 2026 guide across Australia: a specialist damp assessment typically runs $500–$1,500 (ours is free), a chemical damp-proof course from a few thousand dollars up to around $15,000 on larger double-brick homes, subfloor ventilation about $1,500–$5,000, and re-rendering salt-damaged plaster roughly $3,000–$10,000 per wall.
Most single-room Wooloowin jobs land in the low-to-mid thousands
Your home may need only one of these or a combination — the only way to know for your home is a free call.
Indicative figures only — wall length, damp height and salt damage all change the price. We quote fixed, in writing, after the assessment.Common questions
Rising damp only affects ground-floor walls and peaks at a fairly even height — about a metre up — often with a salt tide-mark. Condensation usually shows higher and in corners or on cold surfaces; a leak is more localised. We confirm which one it is with moisture meters on site, because the three need completely different fixes.
That's one of the most common reasons Wooloowin owners call us. A building inspector flags the problem but doesn't fix it. We come out, confirm the extent, and give you a written quote you can use to negotiate on the purchase or plan the repair. Send us a photo of the report finding and we'll talk you through it.
If it's treated properly — a correctly installed chemical DPC plus salt-retarding render — it shouldn't. The 2-year warranty covers the workmanship. Paint-overs and quick fixes are what come back, because they don't stop the moisture at the source.
Yes — that's the bulk of the work in Wooloowin. Older Queenslanders often have no damp-proof course and poor subfloor airflow, so we frequently pair the DPC treatment with subfloor ventilation to keep the underfloor space dry.
Most residential jobs take one to a few days depending on wall length and how much plaster needs replacing. In most cases you can stay in the home; if a room needs to be closed off during treatment we'll let you know in advance.
It can be. The decorative batten screens on many interwar Wooloowin Queenslanders enclose the subfloor and choke the airflow the house was designed around, so the under-house space stays humid and the masonry piers wick moisture up. The fix is usually subfloor ventilation to restore airflow, plus a chemical DPC where needed.
Related. In February 2022 Kedron Brook broke its bank and inundated the low Kalinga Park area across Kalinga and Wooloowin. Floodwater keeps a subfloor damp for years, and the creek-flat ground holds a high water table between floods. We check for residual flood moisture and rising damp and treat accordingly.
Yes — the work is carried out by QBCC-licensed damp and waterproofing specialists, fully insured, to Australian standards.
Tell us what you're seeing — or what your building report said — and we'll arrange a no-obligation on-site inspection and written quote.
We connect you with QBCC-licensed damp specialists servicing Wooloowin. No obligation. The specialist's assessment fee is $450 plus GST. That includes up to two hours on site diagnosis, that may include camera inspection of the stormwater drains.
Nearby areas
Rising Damp