It is important to look for a builder who is licensed and certified by the relevant regulatory bodies in Western Australia. This ensures that the builder is qualified to construct pools to the required standard and is knowledgeable about regulations related to pool building, such as fencing. You should consider the reputation of the pool builder. Look for reviews and testimonials from previous clients to determine their level of satisfaction with the builder's workmanship, communication, and professionalism. Look for a builder who uses high-quality materials that are designed to withstand the harsh Western Australian climate. Additionally, a builder who uses the latest pool technology and equipment may be able to offer more efficient and cost-effective pool solutions. Finally, it is important to consider the builder's warranty and after-sales service. A reputable builder should offer a warranty on their workmanship and be responsive to any issues that may arise during or after the construction process.