1. Ask who is coming
Get the technician or inspector’s full name before the appointment when possible.
2. Ask what credential they personally hold
A company may advertise credentials held by one person. Ask whether the individual performing the inspection, sweep, installation or repair holds the credential.
3. Verify with the issuer
Use the issuing organization’s official directory. VerifySweep links homeowners to CSIA and NFI public verification resources rather than asking you to trust a badge on a website.
4. Match the credential to the work
A chimney-and-venting credential, hearth installation specialty, inspection-focused education and manufacturer training demonstrate different areas of education. More logos do not automatically mean greater competence.
5. Keep experience in perspective
Credentials are one screening tool. Documentation quality, relevant field experience, insurance, manufacturer instructions, applicable codes and willingness to recommend a second opinion also matter.
Use official credential and policy sources whenever possible.
CSIA CredentialsVerify CSIANFIFind an NFI ProStart with the full verification guide
Verify a chimney sweep before you hire, then use this checklist to document what you confirmed.