Updated · 3 min read
In short
- Avoiding a written, detailed quote is a red flag.
- Full payment upfront removes all your leverage — insist on staged payments.
- No verifiable references and vague answers about the team and timescale are serious warnings.
Reluctance to give a written or detailed quote
A tradesperson who constantly avoids giving a written quote, preferring a verbal total, signals either unprofessionalism or the intention to keep the flexibility to adjust the price later without a clear reference. Noticed already in the first conversations, it deserves to be taken seriously, not overlooked in the rush to get started.
Pressure for full payment upfront
Asking for full payment before work starts, with no instalments tied to real progress, removes any leverage you'd have if the work doesn't go as expected. A serious professional usually accepts a staged payment structure linked to the stages of the work.
No verifiable previous work
A tradesperson who can't or won't point to addresses or contacts of previous clients, beyond a few photos without context, makes real verification of their workmanship impossible. The absence of any verifiable reference is a serious signal, especially for large-budget jobs.
Vague communication about timescales and the team
Evasive answers to direct questions about who will actually do the work (their own team or frequently changing subcontractors) and about a realistic completion date show a lack of organisation that will probably show in the work itself too. Clarity in the first conversations is usually a good indicator of how the whole collaboration will go.

