Building insurance cost depends on factors including your home's rebuild value, location, construction materials, age, security features, past claims and selected excess. Insurers may also price in risks such as bushfires, floods, storms and coastal exposure, while optional cover can increase the premium. Compare quotes using the same sum insured and check each policy's Product Disclosure Statement for exclusions, limits and conditions. A quantity surveyor or insurance adviser may help estimate rebuilding costs, while the final premium and cover are decided by the insurer based on your circumstances.