Understanding Installer Membership and Competence

No. Membership may show professional commitment, but membership alone does not establish competence for every task. Any approved or verified status applies only to its stated scope, and clients must still check the people, technology, environment and responsibilities for the project.

Clients should distinguish between company membership, individual registration, vocational qualifications, manufacturer training, safety credentials and project-specific experience.

Questions to ask

• What does the membership or registration actually cover?

• Which individual will carry out the work?

• Are their qualifications relevant to this task?

• Is manufacturer approval required?

• Is additional safety or network access certification needed?

• Has similar work been completed successfully?

Evidence to request

• Current membership status.

• Individual registration scope.

• Relevant qualifications.

• Manufacturer approval where applicable.

• Safety and access credentials.

• Project-specific experience.

• Quality and testing procedures.

Warning signs

• A company logo presented as proof of every employee's competence.

• Expired or unrelated qualifications.

• Product attendance certificates presented as full vocational qualifications.

• Registration categories that do not match the work.

• Refusal to name responsible personnel.

Recommended next step

Create a role-by-role competence matrix for the project and verify the evidence for the people assigned to each activity.

Knowledge Hub · Find an installer · Verify a record

Reviewed by Paul Forster, COFNII Chairman

Related guidance

Selecting a competent installer · Handover documentation · Membership and competence

Last reviewed: 10 September 2026