cheers mate sorry if i seemed like i didnt know what i was on about i was just asking for advice thats all. yea thats all like with circuits i usually charge £25 a circuit depending or do the price in terms of property size. i think on average for a pir its about £150 plus vat i have heard? i do domestic i just havent actually done a shower circuit yet ha i have done everything else i mainly do consumer unit changes, upgrading bonding, pat testing, like for like fittings etc. im pretty new in the game so wanted a bit of help.. with insulation resistance test its difficult to always do isnt it due to appliances being plugged in?