Wet Hire vs Dry Hire in Perth: Which Is Right for Your Job?

Wet hire means the hire company provides both the machine and the operator. You pay a single day rate that covers the machine, the person running it, travel to site and typically fuel. You do not need an earthmoving licence, and you are not responsible for how the machine is operated.

What You Get With Wet Hire

• Machine delivered to your site with a trained operator
• No earthmoving licence or ticket required on your part
• The operator manages machine positioning, bucket technique and ground reading
• If the ground is different from expected, the operator adjusts on the spot
• If the machine has a mechanical issue, our Komatsu-trained operators sort it themselves
• One point of contact - you brief us, we run the job

Who Wet Hire Suits

Wet hire is the right call for homeowners who need a soakwell installed, a pool dug, a site cut or drainage run and do not hold an earthmoving ticket. It also suits builders who want a machine on site without managing the operator themselves.

It is also the better option when ground conditions are unknown or variable. An experienced operator who has worked Perth soils - sand, clay, limestone, ironstone - makes better decisions about how to approach the dig than a licensed operator who is unfamiliar with the ground.

Dry hire is machine-only. The plant hire company delivers the machine to your site and you supply the operator. You pay for the machine, the transport to and from site, and fuel. The operator is your responsibility.

What You Need for Dry Hire

• A licensed, competent operator who holds the appropriate earthmoving ticket
• Your own insurance arrangements for machine operation
• Full responsibility for the safe operation and return of the machine
• An understanding of the machine type you are hiring
• Fuel costs are typically on you or charged separately

Who Dry Hire Suits

Dry hire is the right call for earthmoving contractors, construction companies and experienced operators who have their own licensed crew and simply need access to a machine. It is often the more cost-effective option for jobs where a contractor is already staffing a site.

The decision is simpler than most people expect. Ask yourself three questions before calling for a quote.

1. 01

   Do You Hold an Earthmoving Licence?

   If you or your crew do not hold the appropriate earthmoving ticket for the machine, wet hire is your only option. No licence means no dry hire.

2. 02

   Do You Know the Ground Conditions?

   If the site has unknown soils, previous excavation history or potential for limestone or clay, wet hire means an experienced operator adapts on the fly rather than your crew making that call.

3. 03

   Are You Staffing the Site Already?

   If you have a licensed crew on site for a multi-week job, dry hire often makes more economic sense than paying for an operator you do not need.

“Most homeowners and small builders choose wet hire without even asking about dry hire. They just want the job done and do not want to think about what happens if the machine plays up or the ground is different from expected. That is a reasonable position - wet hire removes those questions.”

Plant Hire Perth

Western Australia requires operators of earthmoving plant above certain weights to hold a Certificate of Competency issued through a registered training organisation (RTO). The specific ticket required depends on the machine type and weight class. Operating without the appropriate licence is an OHS offence and voids the hire agreement.

Which Tickets Cover Which Machines

What Happens If an Unlicensed Operator Takes the Controls

An unlicensed operator running a dry hire machine creates liability for the hire company, the site manager and the operator themselves. Our machines are covered under our insurance only when operated by a licenced, competent person as declared in the hire agreement. An unlicensed operator voids that cover entirely.

This is not a technicality - it is a real financial exposure. If the machine causes damage to underground services or injures someone on site while being operated without the correct licence, the hire company's insurance does not respond and the site manager carries the liability personally.

One of the clearest practical differences between wet hire and dry hire is who holds the risk if something goes wrong. Understanding this before you sign the hire agreement matters more than most customers realise.

Risk in Wet Hire

Under wet hire, the machine is operated by our own Komatsu-trained operator. The operator's decisions on site - how the bucket is directed, where the machine is positioned, how the dig is approached - are our responsibility. If the machine damages an underground service that was accurately located and marked, the question of liability is assessed based on standard earthmoving practice, not on who was told to dig.

Risk in Dry Hire

Under dry hire, your operator runs the machine and your operator's decisions become your liability. If the machine hits a gas line, a communication conduit or a water main, the responsibility for damages sits with the dry hire customer. Damage waivers in hire agreements typically cover accidental mechanical damage to the machine itself - they do not cover third-party liability claims arising from site incidents.

Damage Waivers: What They Cover and What They Do Not

A damage waiver reduces or eliminates your liability for accidental damage to the hire machine itself during normal operation. It does not cover damage from misuse, operation by an unlicensed person, or deliberate acts. It does not cover damage to property, underground services or third parties on the site.

Wet hire is not just for homeowners without a licence. There are categories of Perth earthmoving work where wet hire is the better choice even for contractors who technically have the option of dry hire. Ground conditions, site access and job complexity all factor into the decision.

Tight Access and Side-Gate Jobs

Residential jobs that involve getting a machine through a side gate or into a confined rear yard require an operator who can judge clearances precisely. An experienced Komatsu operator who works these machines daily makes those calls with confidence. A licensed operator who uses excavators occasionally may be technically qualified but less comfortable in a tight spot.

Unknown Ground Conditions

Perth soils vary substantially within short distances. Limestone can appear at 300mm in some suburbs and not surface until 2m in others. Old fill sites, former orchard lots and subdivisional blocks with previous activity on them often contain material that surprises even experienced operators. Wet hire means a Komatsu-trained operator who digs in Perth regularly is the one making judgement calls when the ground changes.

Specialist and Non-Standard Work

Jobs like the 50-tree grass tree harvest described in our other article, rock breaking in confined spaces, or deep service trenching near existing structures are all cases where operator skill and machine familiarity directly affect the outcome. Wet hire puts our most experienced operators on those jobs rather than leaving the result to whoever the customer can find on short notice.

• Side-gate and rear-yard access: experienced operators navigate tight clearances faster
• Unknown ground: limestone, old fill and clay surprises are handled by operators who have seen them before
• Rock breaking: hydraulic hammer operation requires technique as much as machine power
• Grass tree harvesting: precision work that benefits from trained machine control
• Service trenching near structures: operator skill affects how close you can safely work
• Soakwells in confined lots: machine positioning and depth control matter more than raw power

Dry hire works well when the arrangement is set up correctly. Most problems come from one of a handful of predictable mistakes that turn a cost-effective hire into an expensive one.

1. 01

   Choosing the Wrong Machine Size

   Booking a machine that is too small for the ground conditions because it looks cheaper on paper. If the PC18 1.8t takes three days on hard limestone where the PC55 5.5t finishes in one, the cheaper machine is not actually cheaper.

2. 02

   Not Confirming the Operator's Licence

   Assuming a crew member holds the right ticket without checking. An unlicensed operator voids the hire agreement and the insurance cover. Confirm the licence class before the machine arrives.

3. 03

   Underestimating Transport

   Booking on machine day rate alone without confirming the transport component. A dry hire PC138 travelling 60km each way costs significantly more to mobilise than the machine rate alone suggests.

4. 04

   Not Providing Service Location Data

   Letting the operator start without confirmed underground service locations. Under dry hire, a service strike is the customer's liability. Dial Before You Dig and have the Dial Before You Dig reference number ready before the machine starts.

5. 05

   Underestimating Fuel Consumption

   Large excavators burn more fuel than most customers expect. A PC138 running hard on a full site cut can use 15-25 litres per hour. Factor fuel into the budget before the job starts.

“The jobs where dry hire causes the most headaches are usually the ones where the customer booked a machine for three days, the operator they had lined up pulled out last minute, and now they have a machine on site they cannot legally run. A quick call before booking can save all of that.”

Plant Hire Perth