By Greg Allan, tradesman and creator of Data First Coaching
Do I need a licence just to mow lawns and maintain gardens?
Most plain lawn mowing, edging, hedging and garden maintenance rounds in Australia do not need a dedicated trade licence. What a gardener always needs is an ABN, public liability insurance, and in some states a chemical or operator licence once spraying or fertilising for a fee starts. The rules differ by state and territory, so the answer depends on where the work happens.
In New South Wales, the Structural landscaping work page from NSW Fair Trading says a contractor licence is only triggered once structural landscaping work passes a set value in labour and materials, including GST. Plain mowing and maintenance sits outside that. Separately, the NSW EPA's page on Ground applicators explains an exemption under amenity horticulture, which covers garden and lawn maintenance, landscaping and arboriculture, so an ordinary mowing and maintenance round in that state generally sits outside the ground applicator licence as well.
What licence do I need to spray weeds or fertilise lawns for a fee?
Whether a gardener needs a chemical licence to spray weeds or fertilise someone else's lawn for payment depends entirely on the state. Western Australia, Tasmania, Victoria and Queensland generally require some form of licence or approval once spraying is done for a fee, while New South Wales treats ordinary garden maintenance as exempt. There is no single national rule.
WA Health's pesticides Frequently asked questions page says anyone who charges a fee for managing weeds needs to be licensed, with the endorsement that covers lawn and garden weed control using handheld and backpack equipment. Tasmania's page on Ground Spraying and Pest Management Licences says a Commercial Operator Licence is required for businesses that control pests in lawns and gardens for payment, though it gives lawn mowing and garden maintenance as an example of a small incidental chemical use that can be exempt. Victoria's Agriculture page on a Commercial operator licence for contractors requires contractors spraying on someone else's property for fee to hold a licence, with a separate exemption for a person using chemicals only in a garden attached to residential premises after completing a recognised course. Queensland's garden maintenance start up guide says a Commercial Operator's Licence from the Department of Agriculture, Fisheries and Forestry is required to spray herbicides with engine powered equipment onto someone else's land.
Do I need a licence for structural landscaping work like retaining walls, decking or paving?
Yes. Once a gardener moves from maintenance into structural landscaping work such as retaining walls, decking, fencing, pergolas or paving above a set value, most states require a contractor licence separate to any chemical approval. New South Wales and Queensland both licence this work directly.
Queensland's ABLIS entry on the Structural landscaping trade licence covers preparing, fabricating and erecting carports, decking, fences, pergolas and retaining walls, and installing drainage and paving for landscaping work above a set value. NSW Fair Trading's page on Structural landscaping work sets out contractor licence types and the supervisor pathway, which runs through a Certificate III in Landscape Construction or a recognised equivalent. This is general information, not legal, tax or employment advice. Check your own situation with the body named here or a qualified adviser.
Does having the right licence actually win the strata or commercial grounds contract?
Having the licence, insurance and any chemical approval in order gets a gardener shortlisted for a strata or commercial grounds tender, but it is not what wins the recurring contract or keeps it. Every operator on that shortlist usually holds the same paperwork, so something else decides who gets the nod.
Greg often uses a gardener as the example when he talks about being the trusted expert on a site rather than the cheapest mower. Walking a property properly, scanning the hedging, edging, mulch beds, drainage and access before quoting, and explaining the full scope rather than just mowing and leaving, is what a strata committee or facilities contact remembers when the contract comes up for renewal.
Picture a gardener who has started picking up structural landscaping alongside the regular mowing round, building a small retaining wall or timber edging for a strata job. Quoting was slow and done from memory, and with so many parts on each job it was easy for small materials, brackets, posts, fixings, to be left off the quote and then turn up missing on site, eating into the margin before the job even started. A quoting checklist built around every material a job type needs, down to the brackets and posts, closes that gap before it opens.
How do I know if a recurring maintenance contract is actually making money?
The number that tells the truth is the gross profit margin on that contract, tracked month by month, not the dollar value written on the signed agreement. A strata or commercial grounds round can look busy and still lose money once mulch, fertiliser, green waste tipping fees and the labour on a multi stop route are properly booked against it, especially through a seasonal quiet patch or a run of rain days.
Most gardeners price a maintenance contract once, at the quote, and never go back to check whether tipping dockets, mulch top ups and the hours on a longer route are still inside that price a season later. The invoice goes out looking the same every month while the margin quietly moves. Checking gross profit margin against the gardener's own job and finance data, not memory, is what is meant by data first: the numbers tell the truth about this round whether it feels busy or not.
This is where AI agents change the non-billable side of the work. An AI agent is software that does a job the way the gardener would do it, using their own prices, their own wording and their own rules, rather than a generic template built for every business. Used on the admin around a recurring contract, an AI agent can keep tipping dockets, material costs and route time matched against what that contract was quoted to make, so the owner sees the real margin instead of finding out at the end of a season that a strata contract has been running at a loss.
Where can you check the current rules?
- Structural landscaping work, NSW Fair Trading on contractor licences for structural landscaping work.
- Commercial operator licence for contractors, Agriculture Victoria on chemical use licensing for contractors.
- Frequently asked questions, WA Health on pesticide licensing for weed management businesses.
- Ground Spraying and Pest Management Licences, Tasmania's Natural Resources and Environment on Commercial Operator Licences.
- Structural landscaping (trade) licence, Queensland's ABLIS entry on licensing for structural landscaping work.
- Ground Applicator Licence Fact Sheet, NSW EPA on exemptions for garden and lawn maintenance businesses.
- Ground applicators, NSW EPA on amenity horticulture exceptions.
- Garden maintenance Business start-up guide, Queensland guide on Commercial Operator's Licences for garden maintenance.
How does Data First Coaching approach this?
Data First Coaching starts with the gardener's own numbers on a recurring contract: what the quote promised, what mulch, fertiliser, green waste tipping and route labour actually cost against it, and whether the licence and insurance held are even suited to the work being chased. Greg built the method as a tradesman, and he often says, “if it's a gardener you might want to go round and scan all of the different services”, because the paperwork only opens the door, while the scope and the numbers behind it decide if the contract is worth keeping. Working through where the real problem sits, licensing, scoping or margin, happens inside the Academy, with members, because the Trade Business Intelligence is powered by every member who brings their own data to it.
