Getting three quotes is standard practice across construction, mining services and local government work. The trap is treating those quotes as if the daily rate is the whole story. On remote jobs in WA, the cheapest machine on paper can become the dearest option once mobilisation, standby, fuel, compliance gaps and breakdown response are added.
Start with whether the gear is suitable
Ask for the exact make, model, age and configuration. A 20 tonne excavator with the wrong buckets, no GPS wiring and tired tracks is not equivalent to a newer machine set up for the task. For generators, ask for prime rating, fuel burn and service history. For access equipment, confirm rough terrain or slab, diesel or electric, working height and wind rating.
Maintenance records matter. You do not need the full workshop file for every small hire, but for mine, civil and remote jobs you should ask when the last service was completed, whether pre-hire inspection is documented, and what happens if the machine fails. Red dirt, heat and long haul transport find weak spots quickly.
Hidden costs to compare
The line items that hurt are usually outside the headline rate. Delivery and pickup, mobilisation from Perth, operator travel, accommodation, fuel, AdBlue, standby rates, cleaning, damage waiver and after-hours call-outs should all be visible. A float to Newman or Onslow can dwarf a weekly hire rate, so compare the landed cost on site.
Insurance and compliance
For mine sites and major contractors, ask for certificates of currency before issuing the purchase order. Public liability of at least $20 million is common for Australian mine sites, and some principals ask for more or require specific wording. Workers compensation, plant insurance and professional cover for lift planning may also matter depending on the equipment.
Mine spec is another area where vague quotes cause delays. Ask what standard the equipment meets and request the inspection certificate. BHP, Rio Tinto, FMG, Newmont and large contractors often have their own requirements, so the words mine spec alone are not enough.
Breakdown response is part of the price
If a supplier is based in Karratha and your job is at Dampier, response might be measured in hours. If the supplier is in Perth and the machine is outside Port Hedland, you may be waiting a day or more. Ask for the breakdown SLA, after-hours contact, replacement equipment process and whether local fitters are available.
A practical comparison table
- Machine: make, model, year, attachments and mine spec status.
- Commercials: day, week and month rate, minimum hire and standby rate.
- Site cost: mobilisation, pickup, fuel, operator travel and accommodation.
- Risk: insurance, certificates, maintenance records and breakdown response.
- Fit: service area, availability date and local support.
Red flags
Be careful with vague one-line quotes, no ABN, no insurance documentation, unclear ownership of the equipment, or a supplier who will not confirm whether they service your location. That might be fine for borrowing a small plate compactor around town. It is not fine for a remote site where a missed start costs a crew, accommodation and a production window.
The best quote is the one that gives you certainty. Sometimes that is the lowest rate. Often it is the supplier who has the right machine, clear paperwork and a fair dinkum plan to support you when the job moves from spreadsheet to site.