Concrete locks in whatever is underneath it. For Gold Coast and Northern NSW builders and owner-builders, that includes any untreated soil, unsealed pipe penetrations, and unprotected footing contacts that a subterranean termite colony can use as a permanent entry point.
Pre construction termite treatment has a few positions in the build sequence: before and after the slab is poured. Here’s what Dan Purkis Pest Control recommends every builder should know before the concreter arrives.
Why Timing Controls Everything in Building Construction Termite Control
Subterranean termites enter buildings through contact points between soil and structure. On a new build, those points form during construction around pipes, footings, slab edges, and penetrations. Once concrete covers them, treatment from above requires cutting into the slab.
Pre-construction termite treatment is carried out in two stages:
- Pre-slab stage: Chemical-impregnated collars are installed around pipe penetrations before the concrete pour, creating an impenetrable barrier from beneath the slab.
- Perimeter stage: Perimeter treatment is applied under the frame around the perimeter of the slab before the frame is installed.
In Queensland and Northern NSW, treatment must comply with Australian Standard AS 3660.1, which governs termite management in new buildings. A compliant treatment generates the documentation your certifier requires before issuing an occupation certificate.
Chemical Barriers vs Physical Barriers
Both systems meet AS 3660.1 when installed correctly. The right choice depends on your site conditions, your builder’s schedule, and your long-term maintenance preferences.
- Chemical barriers apply termiticide to the soil at the slab level and around penetrations. They work for most residential builds and can be retreated at the perimeter over time without structural access.
- Physical barriers use sheeting, collars, or graded particles installed around penetrations and slab edges during construction. They carry no retreatment requirement, but installation must happen during the build. Access closes permanently once the slab is poured.
What Delays Pre-Building Termite Treatment on Gold Coast Construction Sites
Sequencing is the most common problem on Gold Coast building sites, not the budget. A pest controller gets booked too late, the concreter moves the pour date forward, and the pre-slab stage gets skipped with no recovery option.
Dan Purkis Pest Control works directly with builders and owner-builders across the Gold Coast and Northern NSW, from Beenleigh to Kingscliff and out to Murwillumbah, to schedule pre-construction termite treatment around confirmed pour dates. That means:
- Site access is confirmed before the concreter is booked
- Treatment is completed and documented within the required timeframe
- A compliance certificate is issued that satisfies your private certifier
Getting treatment scheduled early costs nothing extra. Addressing the requirement after the slab has set is a structural problem, not a pest control one. Contact Dan Purkis Pest Control to get treatment booked around your construction timeline before that window closes.
FAQs
When does pre-construction termite treatment need to happen?
Treatment must be completed in two stages: before the concrete slab is poured and before the frame is erected. Both stages must be completed before they are covered by construction. Missing either stage leaves permanent gaps in the termite barrier.
Is pre-construction termite treatment required by law in Queensland and Northern NSW?
Yes, new residential buildings in Queensland and Northern NSW must have termite management systems installed in compliance with Australian Standard AS 3660.1. The treatment must be documented by a licensed pest controller and submitted to your certifier before an occupation certificate is issued.
What is the difference between a chemical and physical termite barrier for new builds?
A chemical barrier uses termiticide applied to the soil around penetrations and around the perimeter of the slab. A physical barrier uses materials like sheeting or graded particles installed during construction. Both meet AS 3660.1 when correctly installed, and some sites use both systems together.
Can pre-construction termite treatment be done after the slab is poured?
No. Once the slab is poured, access to the soil beneath it is permanently closed. If you’ve already poured concrete and suspect you have termites, we offer expert termite inspection services.
How do I coordinate termite treatment with my builder’s schedule?
Contact your pest controller before your concreter is booked and confirm treatment can be completed between your pre-slab preparation and your pour date. DPPC works directly with builders and owner-builders across the Gold Coast and Northern NSW to schedule around construction timelines.
