An unqualified contractor on site is a liability you didn't know you had.
Fake electrical licences, forged gas certificates, and fabricated compliance documents are a serious and underreported problem in the construction and trades industries. When an unqualified contractor causes an incident, the liability flows back to the principal contractor or property owner who engaged them. Verification before work begins is the only protection that holds.
1 in 10
trade licence fraud cases discovered only after an incident
Unlimited
liability exposure from engaging an unverified contractor
Seconds
to verify any contractor document submitted digitally or by scan
The problem
What fraud looks like in trades & construction
Forged electrical and gas safety certificates
Fake compliance certificates are produced with convincing issuing authority branding, registration numbers, and expiry dates. Embossed seal analysis, hologram checks, and registration number format validation expose forgeries.
Altered trade licence cards and letters
Licence numbers, expiry dates, and trade categories are edited on otherwise genuine documents. Font inconsistencies, field alignment anomalies, and metadata checks reveal the tampering.
Fabricated insurance certificates
Contractors present fake public liability insurance certificates to satisfy onboarding requirements. Insurer branding, policy number format, coverage dates, and table integrity are all analysed.
How TamperCheck helps
A forensic verdict in seconds
Add TamperCheck to your contractor onboarding flow. Every licence, certificate, and compliance document a contractor submits — whether uploaded as a PDF or photographed on a phone — is forensically verified before they step on site. Physical stamps and handwritten signatures on hard-copy certifications are verified too.
What we check
- Trade licence and certificate embossed seal authenticity
- Hologram and security print plausibility
- Licence number and registration format consistency
- Expiry and issue date field tampering
- Physical stamp ink bleed vs digital overlay detection
- Insurance certificate table and coverage figure integrity
Documents we verify
Common document types in trades & construction
See it working on your documents
Start with $5 in free credits — no contract, no card required. Upload your first document and get a verdict in seconds.