Was your claim against a company or an individual? If it's an individual you can apply to have a charge registered against a property they own, with a company it can just fold and there goes your debt.
You need to look at the costs involved in both option, bailiffs I imagine are the more expensive. Bailiffs can seize assets but I think they're not allowed to take people's means of earning a living, which is basically what building companies own - tools and van etc. If the claim is against the individual then a bailiff could seize goods like TV etc if (a big if!) they can get into a property.
If you can get an attachment to their bank account so the money is debited in instalments, that might be the best way. Are your court costs included as well?
You need to have a clear vision about how much you're spending to pursue the debt and whether you're going to get anything back at the end of the day. Find out more about the bank account option - do you have details of their bank account?
If it cost you £1000, you spent £100 or £200 or whatever on court fees, you don't want to spend another £100 or whatever it is to still not get your money back.
At the very least a CCJ will impact the builder's credit rating, so you've got your own back to some extent, even if you never see the money.