I don't see how anyone can quote £500 +vat without asking the customer what they want.
£600 with a £50 CU from B&Q (although they're not bad) is a bit different than £600 with a really good CU including ten RCBOs.
£600 with a £50 CU from B&Q (although they're not bad) is a bit different than £600 with a really good CU including ten RCBOs.

