"Gaffar" wrote
| Thanks for all the replies guys, I have spoken to the builder
| now and he has confirmed that his plumber is not Corgi registered
| but (as suggested on here) he does most of the pipe and fitting
| work and he has a contact who is Corgi registered who does the
| gas commisioning and decommisioning, then checks the rest of
| the installation and provides the certificate.
| Is there anything wrong with this approach?

Depends. If the 'contact' is CORGI registered on his own account and is
properly invoicing the plumber who is invoicing the builder who is invoicing
you, then the CORGI registration is valid and the plumber (and thus
eventually you) should be covered by his insurances. Remember too that his
CORGI registration must be valid for the classes of work he is doing;
someone certified for fish fryers isn't necessarily allowed to touch
domestic boilers or water heaters. Ed Sirett's FAQs are floating around
cyberspace somewhere.

If however the 'contact' is CORGI registered to his employer and is doing
work on the black, his CORGI registration (and his employer's insurances)
will NOT cover him (and thus you). A particular problem I've encountered
seems to be local authority housing gasfitters doing work on the black.

Owain