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Warranty · Detail

How to check a dormer warranty certificate

The warranty certificate is the document that turns a verbal promise into a claim. Know what it should contain and how to check it is real.
5 min leestijd·Onafhankelijke informatie

Short answer

A valid warranty certificate names the installer, the property, the warranty provider, the cover, the duration and the claim procedure. Verify the provider independently before you accept the certificate.

What the certificate must contain

Do not accept a vague letter or a line in the contract. The certificate should be a standalone document with specific details.

  • Installer details — company name, address and registration number.
  • Property — the address where the dormer was installed.
  • Warranty provider — insurer or trade scheme name and contact.
  • Cover — what is covered and for how long.
  • Exclusions — maintenance requirements and things not covered.
  • Claim procedure — how to claim and any time limits.

How to verify

Use the warranty provider's official contact details, not just the phone number on the certificate. Ask them to confirm the policy number and cover.

Red flags

  • No named warranty provider.
  • Policy number missing or invalid.
  • Certificate address does not match your property.
  • Exclusions are vague or missing entirely.
  • Company refuses to provide a certificate in writing.

The full checklist

Checklist

Certificate checks

  1. 01The certificate is a standalone document.
  2. 02Installer and property details are correct.
  3. 03A warranty provider is named.
  4. 04The policy number exists and is verified.
  5. 05Cover and duration are clearly stated.
  6. 06Exclusions and maintenance duties are listed.
  7. 07The claim procedure and time limits are described.
  8. 08I verified the provider through official channels.

FAQ

FAQ

Veelgestelde vragen

01What should a dormer warranty certificate contain?
It should name the installer, the homeowner, the property, the warranty provider, what is covered, the duration, exclusions, and the claim procedure.
02How do I check if a warranty certificate is real?
Contact the warranty provider using the details on their official website. Do not use the phone number on the certificate alone, as it could be faked.
03Can a warranty certificate be invalid?
Yes. It may be out of date, issued by a company that is not authorised, or for a different property. Always verify.
04What if the company refuses to give a written certificate?
That is a red flag. A warranty that is not documented is not a warranty. Do not sign a contract without written confirmation.
Conclusie
A warranty certificate is only useful if it can be verified. Treat it like a banknote: check the watermarks before you trust it.