Afraid thats the going rate really, about

£50.

Sometimes you might see places doing it for 1/2 price though.

You can also buy cans of it from Halfrauds i've heard, but i wouldnt go that route unless you really know what you're doing.

As said, if it hasn't been used for a while then expect either the compressor to be seized or the seals to be perished

(which are kept lubricated by the gas) in which case if you just re-fill it, it'll empty out again.

You can ask them to do a leak test where they put some dye in to find leaks.
