batmansspider:Anyone been told by hydro electric that their boiler contains asbestos?
Something like this was mentioned in a thread about 6 months ago. Read my post.
http://www.moneysupermarket.com/community/forums/t/shield-gas-central-heating-protection-15850.aspx
In particular a CORGI technical bulletin is mentioned. GasSafe should have something similar.
The small print of (any) service agreement has lots of escape clauses for the maintainer. You need to go through yours with a fine tooth comb to ensure you have been treated in accordance with the agreement.
As an aside, after 13 years plus, you're in a window where replacement with a new condensing boiler should be considered.