Hello my name is ***** ***** I will help you with this.
What is it you want to achieve please?
You need to write and set out your losses and request a refund of costs and/or compensation within 14 days or say you will go to Court within 14 days. You should make sure you send this signed delivery and keep a copy.
If they do not refund you then you can issue proceedings in the County Court. You can either do this online at: www.moneyclaim.gov.uk or by completing form N1 http://s3-eu-west-1.amazonaws.com/hmctsformfinder/n1-eng.pdf and take it to your local County Court.
The Court will then issue a claim which a copy will be sent to the Defendant who will have a limited time to defend it, if not you can enter Judgment and enforce.
If the claim is for £10,000 or less it will be a small claim so you will not need legal representation. Over this value you would need representation for trial.
I imagine your costs are going to be significant so its important to get representation in terms of drafting pleadings and for trial at any early stage.
Can I clarify anything for you about this today please?
14 days of when you send the letter. This is not a blanket reply, but by a real person.
I would however suggest getting a survey done before hand showing the poor works. In the event it goes to Court you will need expert evidence showing the problems.
You would also need to get a number of quotes to quantify your loss. Given its £20,000 I would recommend you get a Solicitor to draft the Court issued pleadings for you.
Does that clarify?
Yes I would approach a solicitor and have a letter of claim sent, setting out your position.