You can check the company license validity with the NSW Fair Trading association via this link: https://www.onegov.nsw.gov.au/publicregister/#/publicregister/search/Trades Visit licensedtrades.com.au and find out what the licensing requirements for landscaping are in your state or territory. Licensing requirements vary from state to state. For example, in NSW, a Landscaping license is required for work costing over $200. In your state, the regulations may be different.