Cheers Lads, I'll try bleeding them tonight! Also just read that shutting down all the working rads and leaving the problem rad (in the front room) on to try and PUSH the system clear could work!

Is it a messy job wipping rads off? Going to leave work early as I think the blockage is in the front room rad by the valve!

Dont want to spend any of my dosh sorting it asd A) it aint my house B) its just been put on the market!