Equipment is more than you think. Trucks with cherry pickers or spider lifts are a couple hundred grand each, plus they need to be maintained and replaced. And you probably need more than one. So now you're deep into 6-figure debt, and that means big monthly payments. That's before you even get to the costs to store the equipment safely, leasing an office, skilled workers, etc. And yes insurance and bonding, which, you can cause some major damage to multiple structures at once, so that's not cheap at all. How about marketing? Do some billboards or commercials? Tens of thousands more.

I've worked in commercial construction (which absolutely is a cash generating machine) and tree trimming services are like a mini version of that - you need a lot of upfront cash to make it happen and get a stable cash flow going before it's solid and profitable.

Yes. Fuel Veichle payments. Veichle maitnace Veichle anual safety and emissions, due to being comercial use Veichle insurance. Equipment costs Mulchers Cranes Chainsaws wich at that level, become consumables. Harnesses, ropes climbing, and riging gear that needs to be replaced frequently. Mainance on said equipment. Oil changes, blades etc Property lease and insurance to store the equipment and tools and act as central location for the business. Saftey training and certificates, working at heights, whimis etc. More insurance. Wages and wsib. Taxes, then more taxes on the taxes. If your company has over x amount of employees you have an extra health tax you have to pay just because you have more employees. I don't know the full reasoning for it. Permits and planing, to operate in some towns and cities. Disposal fees. Only so much of it can be passed down to the customer too. Plus many more misc , Christmas bonus, lunches and coffey for your employees, water and electrolytic drinks. Incidentals etc.