What paperwork is needed for electrical and gas work?
Discussion
Have built a two storey extension to the back of my house and am at the stage of electrics and plumbing (gas). Although I feel perfectly confident and capable of doing these jobs I realise that I can't as I need to produce the paperwork to get the work and ultimately the whole building work signed off, plus I don't want any future potential problems with insurance.
With that in mind what paperwork should I expect to get from the electrical and gas trades that I employ? Is it certain forms that need to be stamped/signed off (ie forms with particular form names/reference numbers) Does the electrical work need to show a plan of how things are laid out (will be getting a consumer unit fitted)
On the subject of employing an electrician, how much prep work do you think I could do without putting the guys nose out of joint. Was thinking of chasing the walls out and fitting the back boxes.
How about doing the cable runs but not connecting anything up (I could do with doing this as I want to run the cables for the lights prior to plasterboarding the ceilings) I guess this might be a step too far though.
Cheers in advance
John
With that in mind what paperwork should I expect to get from the electrical and gas trades that I employ? Is it certain forms that need to be stamped/signed off (ie forms with particular form names/reference numbers) Does the electrical work need to show a plan of how things are laid out (will be getting a consumer unit fitted)
On the subject of employing an electrician, how much prep work do you think I could do without putting the guys nose out of joint. Was thinking of chasing the walls out and fitting the back boxes.
How about doing the cable runs but not connecting anything up (I could do with doing this as I want to run the cables for the lights prior to plasterboarding the ceilings) I guess this might be a step too far though.
Cheers in advance
John
I'm doing a similar thing at the moment.
Part 2 storey rear and side extension - somewhere in the region of 65-70sqm total floor area.
I would suggest you just let the spark crack on with it. In my case I'm quite sure that if I'd done the chasing out (very little of that to do in a new extension BTW) and cable runs that the reduction in price charged would be very little and he would probably have to put your work right anyway
Not worth your while really.
For reference I've had:-
- Initial works to enable moving the incoming supply (a day of running lots of temp cables and terminalting them all)
- New consumer unit
- Supplies to new kitchen (Oven, dishwasher, hob, wash machine, plinth heater, 4 double sockets)
- lighting
- 8 new outlets
- Cat5 cables (2 runs linking bedroom and new family room with existing front room)
- Speaker cable in new kitchen
- Sky cables to new faily room and bedroom
- 2 outside security light
- New supply to garage (SWA run underground).
- Testing stuff etc.
- Stuff I've forgotten
I'm paying £2200 approx for that lot.
You should get a bit of paper from both spark and gas engineer stating you've ticked all the boxes and nobodies going to explode. Same with your windows too.
I'm finding out that if you want it done in good time, and also have to work yourself, just let someone who does it for a living crack on and just get it sorted. There is a chap in my street still finishing his extension after starting 10yrs ago!
Saying all that I've done a fair bit myself (shortened the garage, groundworks/drainage - a LOT of work there, fitted bathroom, ensuite to fit and I'll be 2nd fixing all the new rads).
It also help if you can go round (at weekends ih my case) and just keep on top of the tidying up. Builders are messy bstds!!
Edited to add:- If you have the time and a good relationship with said sparky...ignore all of the above
Part 2 storey rear and side extension - somewhere in the region of 65-70sqm total floor area.
I would suggest you just let the spark crack on with it. In my case I'm quite sure that if I'd done the chasing out (very little of that to do in a new extension BTW) and cable runs that the reduction in price charged would be very little and he would probably have to put your work right anyway
Not worth your while really.For reference I've had:-
- Initial works to enable moving the incoming supply (a day of running lots of temp cables and terminalting them all)
- New consumer unit
- Supplies to new kitchen (Oven, dishwasher, hob, wash machine, plinth heater, 4 double sockets)
- lighting
- 8 new outlets
- Cat5 cables (2 runs linking bedroom and new family room with existing front room)
- Speaker cable in new kitchen
- Sky cables to new faily room and bedroom
- 2 outside security light
- New supply to garage (SWA run underground).
- Testing stuff etc.
- Stuff I've forgotten
I'm paying £2200 approx for that lot.
You should get a bit of paper from both spark and gas engineer stating you've ticked all the boxes and nobodies going to explode. Same with your windows too.
I'm finding out that if you want it done in good time, and also have to work yourself, just let someone who does it for a living crack on and just get it sorted. There is a chap in my street still finishing his extension after starting 10yrs ago!
Saying all that I've done a fair bit myself (shortened the garage, groundworks/drainage - a LOT of work there, fitted bathroom, ensuite to fit and I'll be 2nd fixing all the new rads).
It also help if you can go round (at weekends ih my case) and just keep on top of the tidying up. Builders are messy bstds!!
Edited to add:- If you have the time and a good relationship with said sparky...ignore all of the above
Edited by dave_s13 on Monday 17th January 08:41
For the electrical work you should get an electrical installation certificate that covers your whole house. (This would not be the case if you were not replacing the consumer unit). This may flag up faults within your existing installation that will need rectifying before a certificate could be issued to you.
(If the extension had circuits that were continuations of the existing lighting and power circuits you would receive minor works certificates).
Your electrician should be Part P registered to work in domestic premises and carry out notifiable works such as changing a consumer unit or installing new circuits.
He would on completion of the works submit a form to his approved body, such as the NICEIC / NAPIT who would inform building control of the works, and issue you another certificate seperate from the one you would get from your contractor.
Your electrician has to sign to say the wiring is installed correctly and is routed within prescribed zones, leave it to him to do his job if you want it doing right and certifying without complications.
(If the extension had circuits that were continuations of the existing lighting and power circuits you would receive minor works certificates).
Your electrician should be Part P registered to work in domestic premises and carry out notifiable works such as changing a consumer unit or installing new circuits.
He would on completion of the works submit a form to his approved body, such as the NICEIC / NAPIT who would inform building control of the works, and issue you another certificate seperate from the one you would get from your contractor.
Your electrician has to sign to say the wiring is installed correctly and is routed within prescribed zones, leave it to him to do his job if you want it doing right and certifying without complications.
dave_s13 said:
There is a chap in my street still finishing his extension after starting 10yrs ago!
LOL, sounds like me, not far off anyway!Right, so I should expect the electrician to submit the necessary forms to building control and have something from him myself to show work done, is that correct?
What about gas, is there anything the gas safe installer should be submitting to building control or does he just give me some sort of certificate?
Cheers, John
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