Thanks for the replies.
The house is in Leicester so £139 seems very OTT. I will get the clips put in. Is this a job that has to be done by a gas safe engineer or can I get a local odd job man to do it?
The gas safety certificate was carried out on my rental on Monday. The engineer wont issue the certificate because when they checked in the loft there were no flue clips supporting the flue between the airing cupboard and where it passes out through the roof. They have quoted £139 to put in 2...