How often do the phrases "it's a new build" and "I have a problem with..." appear in the same post?
I know...it's a bugbear of mine...but for a reason. The particular builder mentioned here has been a cause of many complaints, but to be fair, they just farm out the installation to local firms and you can be lucky too.
However, just look at the cost of a new house and ask why, with the huge amount of money involved, the electrical installation is poor...and the answer is always the same: profit...every penny a prisoner. I hate cheapskate cost-cutting in every walk of life, but to save a few hundred quid on a build at a few hundred thousand quid just annoys me. Installing the CU above the WC in the ground-floor cloakroom next to the front door really pi$$es me off...