I currently have my ring main dropping down from the first floor void through the cavity space in the walls then exiting at the bottom and into the power socket. house is 1950's - is this ok/permitted?
If you saying the cavity is between the brick courses then it's not allowed.
If your saying the cavity is between the internal brick skin and the dry lining / plasterboard that is OK providing it's in the sfae zone and suitably supported with fixings.
Because if you have cavity wall insulation your cables may overheat. Also cavity walls are a nice place for vermin to hide and they like the taste of PVC. Oh and certain types of cavity wall insulation can eat away at PVC insulation too.
I'm not a plumber but I can't see why insulating hot pipes is going to be a bad thing so your probably ok there.
You are not obligated to fix anything that isn't immediately dangerous. The current regulations do not carry over to old installations. Do you have cavity wall insulation already? Any shower/cooker cables in the voids?
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local