What happens if you have external wall insulation and want to go on fibre....?

[chrisjp]

I also wonder how Openreach technicians verify there are no electricity cables, domestic water pipes and central heating pipes in the region of the inner or outer brick and blockwork they intend to drill a hole through.
At least with a window frame you can easily see that nothing is in the way to get damaged

[iniltous]

Hidden service detectors are part of the ‘kit’ installers are given , so they relatively safely can drill from inside to outside without damaging anything hidden behind the wall , and is why when some complain about ‘blowing out a brick’ on the outside wall is pretty unavoidable, it’s not a good idea ( although a neater finish )  drilling outside in , scanning the plaster board side of a wall should detect services behind , scanning the brick side won’t , or not as effectively.

[WSH]

@36ULW 

Again just curiosity, but beside the drill getting hot and melting the PVC, is there any reason why PVC would be unsuitable?

[36ULW]

Because it’ll look like siht.

[36ULW]

The Hidden Services Indicator Openreach use, which are Bosch can’t detect that deep into External Wall Insulation.

When drilling out on External Wall Insulation it is purely down to Guess Work and hoping the Customer knows what services are present and where on the outside wall.

[WSH]

Fair enough. LoL