The vast majority of tradespeople are honest, skilled professionals who take pride in their work. But every industry has its bad actors, and home improvement is no exception. Knowing the warning signs can save you from a costly mistake.

They knock on your door uninvited

Unsolicited cold-calling — whether door-to-door or by phone — is a common approach used by rogue traders. They often claim to have 'noticed a problem' with your roof, driveway or gutters while working nearby. Reputable businesses don't need to drum up work this way.

They pressure you to decide immediately

High-pressure tactics — 'this price is only available today', 'I have a cancellation so I can start tomorrow' — are designed to stop you thinking clearly or getting other quotes. Walk away from anyone who won't give you time to consider.

They want a large cash deposit upfront

A small deposit for materials is reasonable. Asking for 50% or more before a single piece of work has been done is not. Cash-only requests are also a red flag — they make it harder to trace payments and dispute charges.

They can't provide insurance or references

If a tradesperson becomes evasive or defensive when you ask for proof of insurance or references, that tells you something. Legitimate professionals expect these questions.

The quote is vague or verbal only

A quote that doesn't specify what's included is a blank cheque. If they won't put it in writing, don't proceed.

They discover 'extra problems' once work has started

Some rogue traders deliberately quote low to get the job, then claim to find additional problems once they're on site and you're committed. This isn't always dishonest — genuine complications do arise — but it should prompt questions and a revised written quote before any additional work proceeds.

This advice is provided for general guidance only and does not constitute legal or professional advice. Always consult a qualified professional for your specific situation.