The warning signs of a dodgy tradesman are mostly about how they arrive, how they want paying, and what they will not put in writing. No single sign proves anything, but two or three together are a good reason to say “let me think about it” and close the door.
This guide is deliberately calm. Most trades in Warwickshire are honest people doing decent work, and you should not need to feel suspicious of everyone who quotes you. What you need is a short list of things to look for, and for each one, what the good version looks like so you can recognise it when you see it.
Is someone knocking on the door a warning sign?
Yes, an unexpected knock offering work is the single most common starting point for rogue trading. Warwickshire Trading Standards’ first tip is simply never to agree to buy goods or services from people who turn up at your door unannounced. The usual offers are roofing, driveways, guttering, gardening and “we noticed a loose tile”.
The good sign: you found them, not the other way round. A trade you contacted, through a recommendation, a search or a directory, who then books a time to come and look, is behaving normally. Every Mendwell visit starts with you booking it, at mendwell.co.uk/book or by phone.
Is “we happened to be in the area” a warning sign?
Yes, because it is a line designed to make you decide quickly. It usually comes with “we have some materials left over from a job down the road” and a price that only works today. Trading Standards notes that these callers like to appear local and genuine, but the addresses they use are often false.
The good sign: a trade who is happy to come back another day. If the offer is real, it will still be real next week, and a local business has no reason to rush you.
Is being asked to pay in cash a warning sign?
Cash on its own is not proof of anything, but cash only is. Citizens Advice says to avoid traders who only accept cash or want everything up front, because it is a sign they may be dishonest or unreliable. Cash leaves no trail, and a trade who insists on it is usually keeping it that way on purpose.
The good sign: a bank transfer to a named business, against a written quote and invoice, with the balance paid when the job is done. We take the balance by bank transfer on completion, and card and bank details never go in a message.
Is no address or company number a warning sign?
Yes. If you cannot find out where a trade is based or what the business is called, you have nobody to go back to if the work fails. A mobile number and a first name is not a business.
The good sign: a full business name, a postal address and, for a limited company, a company number you can check on Companies House in a minute. Mendwell is the trading name of Life Assembly Limited, company number 13828942, based in Nuneaton and working across Warwickshire and the counties either side. That is the level of detail to expect from anyone.
Is pressure a warning sign?
Yes, and it is one of the clearest. “It needs doing today”, “the price goes up tomorrow”, “I can only do it if you decide now” are all ways of stopping you from getting a second opinion.
The good sign: a trade who tells you what is urgent and what can wait, and means it. Some things genuinely cannot wait, such as a leak, but even then a good trade will make it safe and quote properly for the rest.
Is no written quote a warning sign?
Yes. A price said out loud is not a quote, and a job started with nothing in writing is a job where every disagreement is your word against theirs. It also matters legally: for work agreed at your home, you have 14 days to cancel, and the trade must tell you that in writing.
The good sign: a written quote that lists the work line by line, says what is excluded, names the materials and sets out payment terms. At Mendwell the site visit and the written quote are free, with no obligation, and we do not price from photos.
Is not showing insurance a warning sign?
Yes. Public liability insurance is what covers your home if something is damaged during the work. A trade who cannot or will not show a current certificate is either uninsured or hiding something about the cover.
The good sign: a trade who tells you the level of cover without being pushed and can show the certificate. We hold £2,000,000 public liability cover with Hiscox, and any contractor working on our behalf must hold at least £2,000,000 before they step on site.
Are reviews that all read the same a warning sign?
Yes, if you look closely. Twenty five-star reviews posted in the same fortnight, all using the same phrases, all from accounts with no other history, are more likely to have been bought than earned.
The good sign: reviews spread over time, in different voices, mentioning specific work, with the odd four-star review and a sensible reply to it. Real customers write about the door, the fence, the mess being cleared up. They rarely all sound the same.
What should I do if I think I am dealing with a rogue trader?
Do not sign anything, do not pay anything, and take the details. If work has already been done and you have been pressured or overcharged, the Citizens Advice consumer service on 0808 223 1133 will pass a rogue trader complaint to Trading Standards. If someone is at the door and you feel threatened, call 999; for anything else, the police on 101.
Who is this for?
Anyone in Warwickshire or the counties either side choosing a trade for the first time, and anyone keeping an eye out for a relative. If you are further away, the signs are the same everywhere, and you are welcome to ask us anything.
The visit and the written quote are free with no obligation. Book at mendwell.co.uk/book or call 07472 281 663. More guides at mendwell.co.uk/guides.