When you compare solar installers, check their Clean Energy Council accreditation, experience, proposed panel and inverter models, workmanship warranty and after-sales support. Request at least two or three itemised quotes showing system size, expected generation, installation inclusions, payment terms and any ongoing costs. Be cautious of unusually low prices, high-pressure sales tactics or promises about savings that are not supported by your household’s usage and electricity tariff. Confirm the final design, approvals and warranty terms with the installer, and consider checking their licence and reputation with your state or territory authority.