been to a job today, nothing fancy. fit 2 pendants and double dimmer,and a double socket (spurred from CU which is about 6 ft. away), in a conservatory that has had the roof plasterboarded. opened CU to find a rat's nest "installed" 2019. every terminal apart from the factory fitted ones was loose. guy charged ÂŁ450 for a dual RCD CU, both socket circuits on the same RCD. this crap really grinds my gears.