Thanks guys. Much appreciated. Will go to an A/C place I think.
Has it still got pressure
If you take it to an AC specialist rather than a garage they'll remove the gas, and re fill it to the correct level , if there's a leak the machine won't pressurise so they'll inject a dye into the system and look for a leak with a UV light
You don't need an AC specialist for this, any garage that has a decent AC machine can do exactly the same. The machine Mark has removes the gas, dries the system, checks for leaks and regases to the correct level for the car. It can also inject dye into the system to check for leaks etc.,..