The gap between a professional quote and a cheap quote is not margin — it is usually insurance, equipment, and experience. Here is what you are actually paying for.
Equipment
Chainsaws, chippers, stump grinders, rigging systems, elevated work platforms, trucks with tip-trailer. All of it needs to be purchased, maintained, serviced, and replaced on an ongoing basis, and a lot of it is not cheap to begin with — a decent stump grinder alone can run into five figures.
Insurance
A legitimate tree service carries public liability insurance to cover your property if something goes wrong. This is a genuine cost of doing the work properly, and it is worth asking to see a certificate of currency before work starts — a quote that seems unusually low is worth asking about.
Training and experience
Bringing a large tree down safely in a confined residential section — calculating the drop zone, setting rigging to direct falls, managing tension in the tree — is skilled technical work. Experience is what stops a job going wrong, and it is usually gained over years, not weeks.
Labour
Tree work is physically demanding, high-risk, and skilled. Experienced crews are not cheap and they should not be. Sites where cheap operators have caused property damage or injury are not uncommon, and the cleanup from that kind of mistake often costs more than the job would have.
Cleanup and disposal
A proper job includes chipping or removing all material from site. Low quotes often mean leaving debris for the owner to deal with. Tip fees for green waste in the Bay of Plenty add up quickly on larger jobs, particularly for anything involving a full tree rather than just pruning.