A bit of advice on this quote please for a partial rewire?

[HappyHippyDad]

Hello everyone..

This will be my third rewire if I get it so I'm still a bit unsure on the quoting side of things.

This is a smaller rewire than the other 2 which were around the £4K and 6K.

The house will be lived in but most of the cables will be in the ceiling void of the ground floor and the first floor is just a shell, floorboards mostly up and literally nothing in it. There is no ceiling in the first floor and no loft.

I would be interested in what you guys think of the quote I am proposing, too high, too low, about right?

I am also a little unsure how to go about changing the cable for the ground floor switches and sockets. The client will not agree to any walls being damaged in the ground floor and the cables are not in conduit. My only thought was to use MF junction boxes wherever a cable disappears into the wall from the ceiling void? He is not concerned about the condition of these cables only the condition of all the cable in the ceiling void as many have been chewed by mice.

Easy access to gas/water/earth rod.

Cheers guys.

Pantry
1. Supply and install 10 way Amendment 3 High integrity Consumer Unit with up front S-type RCD.
2. Install new 25mm tails from meter to consumer unit.

Spare bedroom
1. Supply and install 6 x downlights (fire rated and with LED lamps)
2. Supply and install 1 x plate switch
3. Supply and install 4 x double sockets

First floor washroom
1. Supply and install 3 x downlights (firerated and IP rated with LED lamp)
2. Supply and install plate switch located outside of washroom

Main bedroom
1. Supply and install 6 x downlights (dimmable, fire rated with LED lamps)
2. Supply and install 2 way switching including an LED dimmer switch.
3. Supply and install 4 x double sockets.
4. Install cable for lighting to wardrobe and install lights (client supplying)

Landing
1. Supply and install 7 downlights (dimmable, fire rated with LED lamps)
2. Supply and install 3 way switching including an LED dimmer switch.

Other
1. Supply new cable from consumer unit (CU) to outside junction box supplying power to garage. Check for water ingress on present junction box as not weatherproof and replace if necessary.

2. Supply and install 6mm cable from the CU either leaving enough cable to reach exit from house to outside wall or terminate in weatherproof junction box if exit point has been arranged.

3. Supply cable to 4 x outside lights (client supplying) and replace cable to 2 way switching. May have to use junction box in ceiling void if no access to switch in entrance.

4. Install new 10mm Main bonding cable to gas supply in Pantry.

5. Install new 10mm Main bonding cable to water in Pantry.

6. Install new cable to Earth rod located outside of Pantry and test for adequate resistance.

7. Replace all other cables in ceiling void that supply power to ground floor lights/switches/sockets. May have to use maintenance free junction boxes for cables to ground floor switches if no access.

Total cost = £2980

 

[Wilko]

Hi HHD, Depending on the cost of all your bits and the size of the property and time to work around Customer-In-Residence it doesn't sound overpriced.
A few other thoughts :
Hopefully you've agreed the lights and have fairly accurate pricing (Oh, you've bought those lights ...). If you have opportunity perhaps try to pull out and replace cables rather than join. I assume I will use MF jb now, one less thing and all that. As you are replacing CU, maybe no RCD at pres (?) so there may be surprises, likewise with the earth rod. Perhaps some preview testing? Or I have used "rectification of faults discovered during installation is not included in this quote" and let Customer know this may mean some more cabling and earth rods.
Good luck with your quote

 

[HappyHippyDad]

Thanks Wilko.
Yes, I'll be using MF JB's. The CU has an upfront RCD which hasn't been tripping so I'm not expecting a problem with the new board.
I have also said that another rod may be needed at extra cost depending on my test results.
I will try and pull the old cables as I don't want to use the JB's but I doubt they'll pull in plaster.
Cheers

 

[hightower]

We've used MF boxes before for short runs like switch drops when the wall cannot be damaged. Quick test on the old cable to make sure it won't give us any hiccups, job's a good 'un (or as good as can be given the scenario). One tip though, leave 6 foot of slack on the new cable in the void, that way when they redecorate they have the option to chase the walls and pull this slack down to get rid of the MF box when it suits them.

Also, I'd be telling him to sort out any rodent issues before you start the work. Had that before, "oh, it'll be fine" was the reply. 3 months later they were on the phone because rats had gone through the new cables.

 

[telectrix]

good thinking on the 6ft. of slack, HT. have a cigar.

 

[bigspark17]

Are there any extraneous conductive parts in the garage?

 

[Des 56]

Are there any extraneous conductive parts in the garage?

If the question was concerning protective bonding note, he is installing or using a rod so presume TT

 

[Des 56]

[QUOTE="hightower,

Also, I'd be telling him to sort out any rodent issues before you start the work. Had that before, "oh, it'll be fine" was the reply. 3 months later they were on the phone because rats had gone through the new cables.[/QUOTE]

Very sensible advice,he would do well to warn of the problem possibly re occurring by just replacing cables without better protection or even better the client eradicating the problem

 

[bigspark17]

If the question was concerning protective bonding note, he is installing or using a rod so presume TT

The way i read it the garage is not attached to the building, & just because its TT doesnt mean you dont need to bond extraneous conductive parts to the MET

 

[telectrix]

price looks about right to me. certainly not over priced.

 

[HappyHippyDad]

The first thing I said to the chap was that I can rewire the property with lovely new cables but if the mice return they will do the same again. He seemed happy that he was doing everything he could to stop them.

Ok, 2 respected members say the quote is about right so I'm a little happier.

Cheers guys

 

[Des 56]

The way i read it the garage is not attached to the building, & just because its TT doesnt mean you dont need to bond extraneous conductive parts to the MET

I agree it doesn't mean not to bond ext con parts,however, it may not be necessary to bond back to the house consumer unit as it appears was the possible suggestion of the post

The bonding of garage ext con parts can be done with its own rod and Met at the garage end( if the supply cable is too small or there is no separate bond run in with the supply cable)