The patterns repeat: unsolicited contact, urgency, a problem only they can see, a discount that expires today, and a large cash payment before work starts. Any one of those is worth pausing on; two together is a reason to stop. You also have a legal right to cancel most contracts agreed in your home within 14 days, and that right is often concealed.
- Unsolicited contact is the single strongest predictor. Legitimate trades are rarely short of work.
- You generally have 14 days to cancel a contract agreed in your home, and they must tell you so in writing.
- Never let anyone go up to "have a look" unsupervised after knocking on your door.
- If money has gone, report it — banks can sometimes recover, and reporting builds the case against repeat offenders.
The patterns, not the people
Rogue trading is not random. It follows a small number of well-worn scripts, and recognising the script is far more reliable than trying to judge whether someone seems trustworthy. Plausibility is the one skill in this trade that is always present.
What follows is organised by how the approach starts, because that is usually the clearest tell.
The doorstep approach
Someone arrives unannounced. The opening line is almost always that they were working nearby, or noticed something from the road, or are doing a job for a neighbour and have materials left over.
They offer to take a look. If allowed up a ladder or onto the roof, they come down with news of a serious problem, often with a photograph of damage that may or may not be on your property — and may or may not have existed before they went up.
The work is urgent. There is a price, usually with a discount for deciding now, and a request for cash or a bank transfer to get started.
The tells: you did not contact them, the problem is one you cannot verify, and the decision is required immediately. Legitimate contractors in a trade with more work than capacity do not need to knock on doors.
Storm chasing
A specific and seasonal variant. After serious weather, door-knockers appear in the affected streets offering immediate roof repairs.
It is effective because the circumstances do the selling. There may be real damage, you are stressed, water may be coming in, and legitimate roofers are genuinely busy for a week or two afterwards.
Two things to hold on to. First, make-safe and permanent repair are different jobs; nobody needs to commit you to a full re-roof while the wind is still blowing. Second, if there is a valid insurance claim, your insurer will want photographs and an itemised quote, and work rushed through before any of that is documented can complicate the claim.
If your roof genuinely needs urgent attention after a storm, call a contractor you chose rather than one who chose you.
The escalating job
This one starts legitimately, which is what makes it harder to spot.
A small job is quoted at a reasonable price and accepted. Once underway, a problem is discovered. The price increases. Then another, and another. Each increase is individually plausible, and by the time the pattern is obvious the property is partly dismantled and you are heavily committed.
The distinguishing feature is not that extra work was found — that happens on genuine jobs constantly, particularly in older property. It is that nothing is ever shown to you, nothing is photographed, nothing is priced in writing before it is done, and the discoveries keep coming.
The protection is the variations process agreed before work starts: shown, photographed, priced, agreed in writing, then carried out. A builder who resists that process at quote stage is telling you something.
The warning signs, ranked
| Sign | How serious | What to do |
|---|---|---|
| They contacted you, unsolicited | High | Do not engage on the doorstep |
| Pressure to decide today | High | A real price does not expire this afternoon |
| Large cash payment before work | High | Refuse; pay by card or transfer, in stages |
| No written quote | High | No paper, no recourse |
| No address or landline, mobile only | Medium-high | Ask; check it exists |
| A problem only they can see | Medium-high | Get an independent opinion |
| Unmarked van, no company name | Medium | Note the registration |
| Cannot produce insurance | Medium | Ask for the certificate and read it |
| Price far below everyone else | Medium | Usually scope, sometimes bait |
| Reluctant to put the variations process in writing | Medium | Insist, or walk |
One of these on its own may be nothing. Two or three together is a consistent pattern, and the time to act on it is before any money moves.
Your cancellation rights
This is the part most people do not know, and it is genuinely useful.
Under consumer contract regulations, a contract agreed in your home — an off-premises contract — generally carries a 14-day right to cancel, even after you have signed. The trader is required to tell you about that right in writing, and if they do not, the cancellation period is extended substantially.
If you asked for work to begin within the cancellation period, you may owe for what has actually been done, but you can still cancel the remainder.
The practical consequence: if you agreed to something on the doorstep and regret it the next morning, you are very likely still able to cancel. Do it in writing, keep a copy, and send it in a way you can evidence.
This is a general description of the position rather than advice on your situation. Citizens Advice can confirm how it applies to a specific contract, and the Trading Standards service receives reports through them.
If money has already gone
- Stop further payments immediately, including any standing arrangement.
- Contact your bank straight away. Card payments may be recoverable through chargeback, and payments over £100 made by credit card may carry additional protection. Transfers are harder but banks have a reimbursement process for some authorised push payment fraud — ask.
- Report it to Citizens Advice, which passes reports to Trading Standards. Individual reports are what build a case against repeat operators.
- If you believe a crime has occurred, report it to the police and ask for a crime reference number.
- Gather evidence: quotes, messages, photographs of work and of vehicles, bank records, and any registration numbers you noted.
- Get an independent assessment of the work actually done. You may need it, and it also tells you what now has to be put right.
- Do not confront anyone or let them back on the property to "fix it".
What the honest version looks like
Worth stating positively, because the signs above are easier to recognise against a baseline.
You make contact, or you find them through a recommendation or a search. They attend at an agreed time, look properly, and often tell you something you did not want to hear — including, sometimes, that the work can wait.
You get a written quote with the scope set out, including what is excluded. There is no deadline on it beyond materials pricing. The deposit, if any, covers materials, with payments staged against completed work.
They can produce insurance, they have an address, and they are happy to be asked questions. If something unexpected comes up during the work, they show you, photograph it and price it before carrying on.
None of that is a high bar. It is simply how the trade works when it is working.
Guide prices for context
Knowing the rough shape of normal pricing makes an outlier easier to spot. These are the figures published across this site:
| Job | Typical Coventry guide price | Notes |
|---|---|---|
| Builder, hourly | £20–£40/hr (avg ~£24) | Skilled trade |
| Builder, day rate | £200–£350/day | Varies with firm size |
| General building project | £4,600–£14,700 (avg ~£8,593) | Scope dependent |
A price far outside these in either direction is worth questioning. Very low is usually bait or missing scope; very high should come with a clear reason.
We will give you a straight second opinion on what has been quoted, including when the honest answer is that the work is not needed.
Frequently asked questions
Can I cancel work I agreed to on my doorstep?
Usually yes. A contract agreed in your home generally carries a 14-day cancellation right under consumer contract regulations, and the trader must tell you about it in writing — if they did not, the period is extended considerably. Cancel in writing and keep evidence that you sent it. Citizens Advice can confirm how it applies to your contract.
Someone knocked and said my roof is damaged. What should I do?
Thank them, take no decision, and do not let them go up. Note the vehicle registration. Then get an independent inspection from a contractor you contacted yourself. If there is genuine damage, it will still be there tomorrow, and you will have a quote you can trust rather than one produced by the person who found the problem.
Is it a bad sign if a trader wants cash?
Wanting cash is not automatically dishonest, but insisting on it, particularly a large sum up front, removes your payment protection and your paper trail. Card and transfer payments are traceable and may carry recovery routes if things go wrong. A refusal to accept anything but cash is worth treating as a warning.
How do I check a trader is genuine before they start?
Ask for an address and a landline and check they exist. Ask for the public liability insurance certificate and read the cover level. Look for recent local work you can see from the street. Search the company name for a history of short-lived companies. And get everything in writing — genuine traders find none of this difficult.
The work has been done badly. What are my options?
Put your complaint in writing and give them a reasonable opportunity to put it right, which is usually the first step legally. Keep photographs and records throughout. If that fails, get an independent assessment of the defects, and take advice from Citizens Advice about your rights under consumer law. Avoid letting a trader you no longer trust back on site unsupervised.
Where do I report a rogue trader in Coventry?
Through Citizens Advice, which passes reports to Trading Standards. If you believe a crime has been committed, report it to the police as well and get a crime reference number. Reporting matters even when you expect to recover nothing: these operators work the same streets repeatedly, and reports are what build a case.
Want a second opinion?
We are happy to look at a quote you have been given and tell you plainly whether the work is needed and whether the price is sane. No obligation, no pressure.