Electrical Installation Inspection Checklist

Electrical installations are safety-critical and heavily regulated. Testing, certification, and sign-off must be carried out by a competent, qualified electrician to the relevant wiring regulations — that's not optional and not something a general site inspection replaces. What a site inspection checklist can do is give site managers and clerks of works a framework to monitor progress, coordinate trades, and confirm that the right certified checks and records are in place at each stage.

This checklist is a project-management aid, not a substitute for electrical testing and certification by a qualified person.

First fix (before walls are closed)

This is a key coordination stage, because once plastered the cabling is concealed:

Cable routes installed per drawings and coordinated with other services.
Cables protected where they pass through structure; correct depth/safe zones.
Back boxes positioned at the correct heights and locations.
Cabling supported and not damaged.
Any concealed work photographed before being covered.
Fire-stopping at penetrations planned/installed.

Consumer unit and distribution

Consumer unit/distribution board located and fixed per design.
Circuits labelled and as per the schedule.
Correct protective devices installed per the design.
Enclosure secure and appropriate for the location.

Second fix and accessories

Sockets, switches, and accessories installed level and at correct heights.
Correct accessories per specification.
Faceplates undamaged and consistent.
Light fittings installed per design.

Earthing and bonding

Main earthing and protective bonding installed (verified by the electrician).
Bonding to services where required.

Testing and certification (by a qualified electrician)

The actual testing must be done by the competent person, but the site team should confirm the records exist:

Inspection and testing carried out and recorded.
Electrical Installation Certificate (or equivalent for your region) issued.
Test results within required limits.
Any remedial work completed and re-tested.
Certification handed over for the project records and building control where required.

Coordination and progress checks

Electrical work aligned with the programme.
Coordinated with other trades (no clashes, correct sequence).
Penetrations fire-stopped.
Builder's work (chases, openings) complete and made good.

Documentation

Certificates and test results filed.
As-installed information and circuit schedules provided.
Manufacturer documentation for equipment retained for the O&M manual.

Why the first-fix photos matter

As with other concealed work, the cabling disappears behind plaster. Photographs of the first-fix routes before they're covered are valuable evidence of what's in the walls — useful for future maintenance and for resolving any later question. Capture them deliberately.

Capturing it digitally

A site inspection app helps the site team run the coordination and progress checklist, photograph first-fix routes before closing up, and confirm that certificates and test records are in place against the project — keeping the management record complete alongside the electrician's formal certification.

Key takeaways

Electrical testing and certification must be done by a qualified electrician to the wiring regulations — a site checklist supports coordination and record-keeping, not testing. Focus the site inspection on first-fix coordination, concealed-route photos before closing up, correct installation of accessories, fire-stopping, and — critically — confirming that the electrician's inspection, testing, and certification are complete and on file.