How to layout electrics and wiring for your house extension yourself - step by step

I don’t think you need an electrician except for the very early part, taking through U.K. design of the circuits, and the testing part of your wiring at the end. In this video I’ll show you exactly how you can go about it by showing how I did the electrics for this house extension.
1. creating…or designing the electrical layout
2. The sizing of the cables for kitchen appliances, sockets, lighting, and how to switch it … this is the skilful bit
3. Laying the cables is easy…. but… requires a lot of labour,….. all three of these tasks… I think…. you can do yourself, without any fancy engineering or mathematics or practical skills, without any risk of shock or death, and with the minimum of tools…. so….. keep watching, and save yourself several thousand pounds. Just get your certifier involved at the outset, agree a fee, and take what you can from the info I give you in this video.
In summery, you’ll need to involve a certifier from the outset, and agree your routes and cable sizes, which I go through how to do in the video, and then you can do the lions share of the work yourself, getting the certifier back to connect and test the system to the mains at the end.
Once you’ve agreed the design and the layout, see my other video on first fix here….
Safely run electric cables for your house extension, all you need to know.
• Safely run electric ca...
00:00 intro
00:38 designing the circuits
01:18 start by looking at furniture and radiators
02:09 bedroom electrical layouts
02:19 electrical symbols for drawing layouts
02:36 kitchen layout, and alliances, wattage of each appliance
03:25 socket positioning and dimensions, walls and worktops
04:13 floor area and length of cabling constraints for kitchen extension
04:32 light switches height and dimensions, symbols and positioning
05:00 consumer unit position and route of circuits, ring main max loadings
06:13 cooker and induction hob wiring and radials
06:57 appliance switches and spur sockets, isolating and controlling
08:17 lighting design and layout, using switches and junction boxes
10:32 Two way switching with 3-core intermediate cable

[@MrFlyby34]

Thanks for sharing and I agree that much of the work, if properly executed, can be done!

[@davesmith729]

Such an intelligent bloke and you still take your time out to help us, well done kudos to you mate.

[@build-better-things]

thanks a lot, it’s good to get these comments.

[@gwynmorris5852]

excellent content. Thank you for taking the time to share your knowledge.

[@build-better-things]

Thank you for saying so.

[@annakasyna8576]

How do you find an electrician that will be happy to sing off our work?

[@build-better-things]

Great question. My experience is that the good electricians, all of whom are so busy at the moment, like getting projects where it’s just testing and certifying, it’s the cleanest bit of the job, running cables and planning routes, although straightforward, is time consuming, and can be hard to price . It’s win win for them because, if you don’t do it that way they tell you, you’ll have to put it right before they certify it. And as I say in the video, these bits are easy once you know the general picture and you’ve someone to ask. I’m sure there’s some that won’t entertain you, but I’ve never had a problem finding good and helpful electricians . You just have you be clear with what you want and that as part of the fee you’ll be able to ask them questions. Thanks for the comment.

[@strains3551]

@@build-better-things No electrician is going to sign off other peoples bodge ups ! Been in this game for 25 years . I can’t think of a single reason why I would want to put my name to what could potentially be a death trap . There’s a reason you use competent people to carry out specialist jobs here in the uk .

[@build-better-things]

Hi. I do appreciate you taking the time to comment, especially given your experience. I too have been at it for a while. I don’t think anyone’s asking you to sign off anyone’s work if you don’t want to, and especially not if it’s bodged and a death trap, to use your words. I think it’s an important discussion however, and I’ve made a separate video specifically about the point you make here
czcams.com/video/IF8Dg2HGLw8/video.html
Thanks again

[@annakasyna8576]

@@strains3551 thank you for your comment. Unfortunately the reason we want to do the work ourselves is because the work done previously by qualified electricians is one big bodge job. I don't understand your point of view. Pulling cables, chasing walls and screwing sockets to wall is not rocket science. It's the boring and time consuming part of your job. Not sure why you are so precious about it.

[@strains3551]

@@annakasyna8576 I assume you are just trolling or using the wrong contractors if that’s what you think 😂🤦‍♂️