Quick Answer
In 2026, the most common UK home improvement scams include cold-caller doorstep fraud, fake trade body certificates, advance fee (ghost contractor) fraud, and scare tactics scams. Protect yourself by using vetted platforms, verifying registrations directly, paying by card, and never agreeing to work on the spot.
Home improvement scams cost UK consumers tens of millions of pounds every year. In 2026, the methods have become more sophisticated — fake websites, impersonated trade bodies, and social media-driven fraud sit alongside older tactics like doorstep cold-callers. This guide covers the eight most common scam types, how to spot them, and exactly what to do if you are targeted.
In this guide
Cold-Caller Doorstep Scam
An unsolicited caller (often in a van) knocks on your door claiming they noticed a problem with your roof, driveway, or gutters while working nearby. They offer a deal if you agree immediately.
Red flags
- ✗You did not contact them
- ✗Pressure to decide now
- ✗Cash-only payment demanded
- ✗Refuses to provide a written quote
What to do
Never agree to work on the spot. Thank them, close the door, and find a vetted tradesperson yourself.
Fake TrustMark or Trade Body Certificates
A trader claims to be Gas Safe, TrustMark, FMB, or NICEIC registered but is not. They may show you a convincing fake certificate or card.
Red flags
- ✗Cannot provide a verifiable registration number
- ✗Refuses to let you check online
- ✗Certificate looks unofficial or is not dated
What to do
Always verify registration numbers directly on the official body's website before agreeing to any work.
Advance Fee Fraud (Ghost Contractor)
A contractor demands a large deposit (30–80% of the job value) and disappears without completing any work. Often found through social media ads, unverified websites, or community groups.
Red flags
- ✗Wants more than 20–25% upfront
- ✗New business with no reviews
- ✗Cannot visit your property before quoting
- ✗Pressures you to pay quickly
What to do
Never pay large upfront sums to unverified traders. Use a platform where tradespeople have verified reviews.
Scare Tactics Scam
A tradesperson (often a roofer or damp-proofing company) inspects your property and then exaggerates or fabricates a problem — serious roof damage, dangerous electrics, structural subsidence — to pressure you into expensive unnecessary work.
Red flags
- ✗Problem was identified without you noticing any symptoms
- ✗They want to start immediately
- ✗Won't let you get a second opinion
- ✗Quotes far above typical market rates
What to do
Always get a second or third opinion from an independent tradesperson before agreeing to any large unplanned repair.
Bait and Switch
A very cheap quote wins the job, then once work has started, the contractor claims unexpected complications have arisen and the price needs to double or triple. You feel trapped because the job is already half done.
Red flags
- ✗Quote was significantly below all other quotes
- ✗Changes to price are verbal not written
- ✗Work started without a written contract
What to do
Get written quotes from multiple tradespeople. A quote that is 50% cheaper than all others is not a bargain — it is a red flag.
Fake Reviews and Impersonation
Some rogue traders impersonate legitimate, well-reviewed businesses by using similar names, logos, or even identical website designs. They also use fake five-star reviews on Google or social media.
Red flags
- ✗Reviews are all recent and generic
- ✗Business name is very similar to a known company
- ✗No verifiable physical address
- ✗Different phone number from the company you found online
What to do
Verify the trader's identity through official channels. Call the number you found on the official website — not the number on a leaflet.
Cowboy Roofer Scam
After a storm, unsolicited roofers appear claiming to have spotted storm damage. They may do some cheap visible work while creating new damage, then charge for repairs that were never needed.
Red flags
- ✗Knocked on your door unsolicited after bad weather
- ✗Wants immediate payment in cash
- ✗Will not provide a written quote
- ✗Says they noticed damage 'for free' while doing a neighbour's job
What to do
After a storm, contact your home insurer first. Find a roofer through a vetted platform — do not use anyone who appeared at your door unsolicited.
Fake Energy Efficiency Schemes
Fraudsters pose as representatives of government-backed energy efficiency schemes (like the Great British Insulation Scheme), claiming you qualify for free or heavily subsidised insulation or heating upgrades. They then either take payment and disappear or do substandard work.
Red flags
- ✗They approached you unsolicited about a 'government scheme'
- ✗They want your bank details to 'process your application'
- ✗Genuinely government-backed schemes use TrustMark-registered installers — verify this
What to do
Legitimate government schemes do not cold-call. Check gov.uk directly for genuine schemes and approved installers.
How to Pay Safely
Payment method is your strongest financial protection against scams and disputes. The hierarchy from safest to least safe:
- Credit card: Section 75 protection for transactions over £100 — your card issuer is jointly liable for non-delivery or misrepresentation.
- Debit card: Chargeback scheme applies — you can reverse transactions within 120 days if goods or services were not provided.
- Bank transfer: Some protection via bank fraud teams but harder to recover. Never pay a large deposit by bank transfer to an unverified trader.
- Cash: Zero protection if things go wrong. A cash-only requirement from a tradesperson is a serious red flag. Legitimate traders always accept card payment.
For guidance on reporting fraud and recovering money, see: how to report a rogue trader in the UK. For understanding your rights when work is poor, read what to do if a tradesperson does a bad job. And to avoid problems from the start, review how to check if a tradesperson is qualified.
For a full checklist of warning signs before hiring anyone, also read: red flags when hiring a tradesperson in the UK.
Frequently Asked Questions
How can I verify a tradesperson is legitimate before hiring them?+
Check their registration on the relevant body's official website (Gas Safe, NICEIC, TrustMark). Look for reviews on vetted platforms like GetQuickHelp, Checkatrade, or Google. Ask for public liability insurance documentation. Get a written quote. Speak to a previous customer if possible.
What is the safest way to pay a tradesperson?+
Always pay by credit or debit card where possible — never in cash only. Credit card payments over £100 are protected by Section 75 of the Consumer Credit Act. Debit card payments are protected by the chargeback scheme. Both allow you to recover money if the work is not done. A legitimate trader will always accept card payment.
I was scammed — what should I do immediately?+
First, document everything you have: receipts, bank statements, photos, messages. If you paid by card, contact your bank immediately about a Section 75 claim (credit) or chargeback (debit). Report to Action Fraud (actionfraud.police.uk) and Trading Standards via Citizens Advice (0808 223 1133). Leave a factual review to warn others.
Are older homeowners more at risk of home improvement scams?+
Yes — doorstep scammers deliberately target elderly homeowners who may be more trusting, less likely to verify credentials, and more likely to have savings. If you have elderly relatives, discuss these scam types with them and encourage them to call a family member before agreeing to any unplanned work. Trading Standards run a 'no cold calling' scheme in many areas.
Is it safe to hire a tradesperson from Facebook Marketplace or local groups?+
It can be, but the risk is higher than using a vetted platform. Facebook has no trader verification, no insurance checks, and no review integrity. Apply the same due diligence: check insurance, get a written quote, never pay large sums upfront, and verify any claimed registrations. For significant work, use a platform with verified reviews.
Only use vetted tradespeople
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