I recently went on PGL training's "Response to redundancy" scheme, did a Plumbing course. Takes 6 weeks and you get a City and Guilds level 2 cert at the end of it which is good for getting on the first rung of any plumbing company out there so you can further your training with them. Although I did Plumbing, they also do Carpentry, Plastering and Electrical as their other RtR options.
It would definitely be worth checking around your local trades training companies to see if they do the same kind of thing, I should imagine they do it up and down the country as it's a government funded scheme.
Obviously, here's hoping you don't get the boot, but if you do, then good luck with re-training! I can honestly say that, even though I'm not in a job where I use it a lot, it has definitely given me an edge and something great to go on my CV, just opens up a lot of options. :D