pricing a job you have not done before
Every tradie has been there. A customer asks you to quote something you have never done β or something you have done once, three years ago, and you cannot remember what it cost. You want the work. You do not want to look clueless. So you throw out a number that sounds about right and hope for the best.
That is how tradies lose money. Here is a better approach.
the problem with unfamiliar work
When you price work you know well, you have mental benchmarks. You know how long a bathroom strip-out takes because you have done fifty of them. You know what tiles cost because you order them every month. You have a feel for what can go wrong.
With unfamiliar work, you have none of that. Your estimate is a guess, and you do not even know how bad your guess is. That is the dangerous part β you cannot even calibrate your uncertainty.
step 1: break it down smaller
You might not know what a full deck build costs, but you probably know what timber costs per lineal metre from Bunnings Trade. You know what a day of labour costs. You can estimate how many days of work are involved even if you are not sure.
Break the job into the smallest possible line items. Some of those items will be familiar (materials, skip bin, travel). Some will not (specialist labour, unfamiliar techniques). Now you have isolated the uncertainty instead of spreading it across the whole job.
step 2: research the unknowns
For the items you are genuinely unsure about:
- Call a subbie. If the job involves work outside your trade, get a real quote from a licenced subcontractor. That turns a Wild Guess into a Certain item.
- Ask other tradies. Your network is your best pricing resource. Other tradies who have done this type of work can give you realistic ballparks.
- Check supplier pricing. Bunnings Trade, your local timber yard, or specialist suppliers can give you current material costs. Do not rely on prices from your last job six months ago.
- Look at industry guides. Rawlinsons, Cordell, and industry associations publish cost guides with per-square-metre and per-unit rates for most building work in Australia.
step 3: be honest about your uncertainty
After your research, you will have some items that are well-priced and some that are still uncertain. The critical step is to be honest about which is which. Do not mark a guess as Low uncertainty because you want the quote to look competitive. Mark it as what it actually is.
| Item | Source | Tier |
|---|---|---|
| Timber supply | Bunnings Trade quote in writing | Certain |
| Concrete footings | Called a concreter, got a verbal ballpark | Medium |
| Labour β framing | Done similar but not this exact thing | Medium - High |
| Balustrade install | Never done it, guessing from YouTube | Wild Guess |
step 4: simulate and quote higher
When you run a simulation with honest uncertainty tiers, unfamiliar jobs will naturally produce a higher contingency than familiar ones. That is exactly right. The less you know about a job, the more buffer you need.
Consider quoting unfamiliar work at P90 or even P95 instead of the usual P80. You are compensating for the fact that your base estimates are less reliable than usual. If the job comes in under budget, great β that is profit. If it hits snags, you have a buffer.
when to walk away
Sometimes the honest answer is: I cannot price this accurately enough to quote it safely. That is not failure. That is good business sense. If more than half your line items are Wild Guess territory, consider:
- Referring the customer to a specialist tradie who does this work regularly
- Offering to do it as time and materials instead of fixed price
- Subcontracting the unfamiliar portion to someone who knows the work
The worst outcome is not losing the job. It is winning it at the wrong price and working for free β or worse, going backwards.