Licenced builders limited or unlimited are to be engaged by the customer if the bathroom works is valued over $5000. Under $5000 the contractor is not required to be licenced. Any bathroom with building works over $16000 a formal minor works contract is to be engaged between customer and builder which covers building works for 6 years. DIY builders aregenerally reasonable with their workmanship but should definitely be working under the supervision of a licenced tradesman. Licenced
tradesmen endure years of practical workshops and theory in order to fully understand the mechanics of the operational system of a bathroom.