The hardest skill in a trade is not the trade. It is saying no to work. When the diary is quiet, every enquiry looks like money. Some of them are money. Some of them are a month of your life, a dispute and a review you cannot answer. Learning to tell the difference early, and to walk away cleanly, is worth more than any pricing trick.
The signs at the enquiry
Some jobs tell you at the first message.
The customer leads with price before describing the job. They want the cheapest and they will get three more quotes after yours. You can quote it, but quote it at your price and do not chase it.
They have had another tradie start and leave. Sometimes the tradie was the problem. Often the customer was. Ask what happened, and listen for how they talk about the last person.
The scope changes in every message. A bathroom becomes a bathroom and a laundry becomes a bathroom, a laundry and could you look at the deck. Quote the first thing, in writing, and let the rest be separate quotes. If they will not accept one quote for one job, that is your answer.
They want it done yesterday and will not pay for urgency. Urgency is a cost. If they will not pay it, they are not urgent, they are impatient.
The signs on site
Some jobs tell you when you walk in.
The work someone else did is dangerous and the customer does not want to hear it. You cannot build on it and they will not pay to fix it. Say so, once, in writing, and leave.
The customer follows you around correcting you. Not asking; correcting. That customer will supervise every hour and dispute every line.
Access is impossible and they expect you to solve it for free. A third-floor walk-up with no lift for a hot water unit is a cost. If it is not in the price, it comes out of your margin.
There is a strong feeling that you cannot name. Trust it. Twenty years of other people's living rooms has taught you something your conscious mind has not caught up with.
The signs in the quote
Some jobs tell you when you price them.
You cannot make the number work. You have priced it honestly and it is more than the customer will pay. Do not cut your margin to meet them. Send the honest quote and let them decline it. Some will accept it anyway, and those are good jobs. The ones who decline were never your customer.
You keep adding unknowns. If the note under the quote is longer than the lines, the job has too many things you cannot see. Either quote the investigation first as its own small job, or walk.
You would be learning on their job. If the work is outside what you do well, say so and recommend someone. The referral comes back; the botched job does not.
How to walk away
Quickly. The longer you take, the harder it gets and the more the customer has invested. A decision at the enquiry costs nobody anything.
In writing. A short email or message: thanks for the enquiry, this is not a job I can take on, here is a suggestion if you have one. No reasons unless asked. Reasons invite argument.
Without burning anything. The customer you decline today will be a different customer in three years, with a different job and a different budget, or will have a neighbour. Be the tradie who was straight with them.
If you have already quoted, it is fine to withdraw the quote: on reflection I am not able to take this on. If the quote is in Quote Desk and the customer has not accepted it, you can simply not follow up, let it sit under Waiting on the customer, and send the withdrawal in your own email. If they have accepted, you have a commitment, and walking away is a much bigger conversation. Which is one more reason to decide early.
What walking away is not
It is not refusing every hard job. Hard jobs priced properly are the best jobs. It is not refusing every customer who asks questions. Questions are how good customers behave. It is not refusing small jobs; small jobs are how a customer tests you before the big one.
It is refusing the jobs where the price, the scope, the customer or the risk means you will lose, and you can see it from here.
The arithmetic
A bad job costs you the job itself at a loss, the days you could have spent on good work, the time spent on the dispute, and the review that costs you future jobs. Against that, declining costs you an email. The quiet week you were trying to fill would have been better spent on quotes for the next good job.
Every tradie who has been at it a while has one job they wish they had walked away from. The lesson is always the same: they knew at the first visit. Next time, trust it.