Chemical damp proofing is licensable building work here, and the register that proves it is public, free and takes about a minute.
Talk it throughRising Damp Ipswich arranges damp assessments across Ipswich and the western corridor.
Queensland does not issue a licence called damp proofing. The relevant class is waterproofing, issued by the Queensland Building and Construction Commission, and the QBCC describes its scope as permitting the holder to “apply, install and repair waterproofing, including surface preparation, and apply or install material or systems for preventing moisture penetration”. Injecting a chemical damp course into a wall to stop moisture rising through it sits inside that description.
The register shows the name, the number, the class, the current status and any conditions or disciplinary history on record. It does not show everything — insolvencies and civil proceedings are not published there — so it tells you the licence is real, not that the business is a good one.
Building work valued under $3,300 can be done as incidental work outside the licence, provided it does not touch a regulated occupational trade such as plumbing, drainage, pest control or fire protection. A damp course injected through a whole wall is rarely that small. If somebody quotes you $2,900 for a job and says no licence is needed, ask what the scope actually is.
It does not tell you the diagnosis is right. The most expensive mistake in this trade is not an unlicensed installer — it is a correctly licensed one injecting a damp course into a wall whose problem was a leaking pipe, a blocked subfloor or a garden bed stacked above the floor level. Ask what was measured, and ask what else was ruled out, before you ask for the licence number.
This site passes enquiries to a damp specialist. Ask them the questions on this page — the licence number, the class, and what they measured — the same as you would ask anybody else.
We take enquiries across the Ipswich local government area and the western corridor.
Rising Damp Ipswich