4" hole in external brick wall

[bupieker]

Good afternoon all, 

 

I have a quick question for you. I aim to make a hole in my bathroom wall to fit an extract fan. The distance from the wall and the window is about 60cm (see attached picture). From the outside it seems that there is a hole already but I think it is either covered by the wall or very close to it so I don't think I can reuse it. 

 

I am therefore wondering where the new hole can be drilled considering that there is already a 100mm hole in the external wall. Would you mind to answer the following questions so that I can be sure the builder does not make a mistake: 

• Do we need to keep a minimum distance between the two holes?
• Do we need to keep a minimum distance between the window and new hole?
• Do we need to keep minimum distance between wall and new hole? 
• I am unsure how wide the lintel is. Can we drill below it?

 

 

The plumber will come to do some work in the bathroom and I asked him if he could do it. He told me he could... Are plumbers normally competent to do such things? I'd like to question him before he starts the work but by knowing the answers hence my above questions ...  

 

Thank you in advance

 

[steveoelliott]

Do you have a picture from the outside?

[markc]

As above, if existing hole has been filled properly then no problem going close to it.

do not cut a big hole close to top of a window or door as this could compromise lintel support.

plumber should be more than capable of cutting a suitable hole.

 

Edited July 28, 2022 by markc

[TonyT]

Get an electrician they may have more experience in this….

decide what type of fan you want, simple on off, controlled by light the same as light switch, independent switch, humidity?

 

best you decide or you will get what’s lying at the counter in the sale pile at the merchants