Headgasket testing

[Rinzler79]

Hi all, long time lurker, first time poster (sorry for the long one).

Recently my Chimaera has been in for it's first service under my ownership, and a number of issues were spotted; one being a headgasket leak. Their recommendation was an engine out rebuild due to some other oil leaks which could be sorted at the same time. As the car needed other work, I didn't have the cash and opted to leave the engine as is.

However, my gut feeling was that the HG was actually fine, but I thought I'd check with the hive mind as well.

My reasoning:
I've never noticed any smoke or odd smells from the exhaust, and that includes a few convoys with friends driving behind, nor any milky oil.
Also, whilst the garage doing the service was a very reputable TVR specialist, there were a number of inconsistencies surrounding the work that put me off going back in general (things I was told needed doing, but actually didn't need).

I purchased one of those blue liquid test kits and tried it today, placed in the expansion tank at the front and it came back all good, staying blue. Is this the correct location to test?

Also, are there any other ways I can test for a HG failure as it does seem like a random issue to bring up unless the garage had a reason and not the sort of problem I want to leave to chance

Many thanks in advance

[Belle427]

Very strange, they must have had good reason to check for head gasket failure and I would want to know how they tested it.
Compression tests, cooling system pressure tests can help determine head gasket problems, as well as the gas test you performed.
Are they saying the oil leaks are the head gasket as there isn`t enough information?
Also stating a full engine rebuild is just plain odd, would love to know what specialist you took it to.