I’m assuming the point of a Ltd is any debts from the company will not impact my personal estate ie: I can’t lose my house or end up in bankruptcy.
Not quite that simple. Ordinarily, yes, limited liability is what it says, but if you’re naughty (e.g. continuing to trade when you know the business is insolvent, taking on liabilities you know you won’t be able to settle, including to HMRC) directors can be personally liable, as well as subject to prosecution. “Wrongful trading” if you want to google / wiki for more detail around this.
EDIT: Not restricted to limited liability companies, but as a director, there’s other potential risks you should be aware of, such as H&S duty of care, which would extend, for example, to sub-contractors. E.g. if you arrange a sub-contract and send your subbie to do a job 100 miles away, he crashes his car on the way there, and in the ensuing investigation it turns out he had no driving licence, or his car wasn’t roadworthy, as director of the company you could be looking at corporate manslaughter if you hadn’t taken reasonable steps etc. Not a common occurence, but these things happen so you should be aware of it.
If you are considering becoming a director of a company for the first time, you’d be well advised to read up on all the duties and responsibilities that this entails.