Which trade does coredrilling for ducting?

[chris1982]

I am planning to refurbish our kitchen and want to put in an extracting cooker hood, so need to put in ducting. Probably it's a stupid question, but who do I call in for making the hole into the outside wall? It's a 1970's house with cavity walls that are filled with some insulation (don't know what material). Ideally I'd like to put in rigid ducting, possibly square, but I guess round ducting is easier to run through the wall.
In our last house, the electrian who upgraded the kitchen wiring had a core drill and did it, but who would you call in?

 

[jeds]

There are companies that specialise in core drilling. They have top equipment, are very clean and quick, but are also quite costly. They typically have a minimum call charge of a couple hundred but will do two or three cores for that. Not bad value if you've got a boiler and a couple of fans to do but a bit of stinger for one cooker hood. Otherwise a general builder.

 

[Cgas]

As above, are u refurbing the kitchen or a joiner? They will probably have the gear to do it, if not you can hire core drills/cores at a hire shop for a couple of hours rather then getting a company in, the companies tend to be for solid stone 2ft walls and the like that's why they're so expensive.

 

[^woody^]

Electricians drill holes for fans. Plumbers drill holes for flues. Builders drill holes for anything.

Anyone with a drill and core bit. You don't need to go to a specialist core drilling company.

 

[^woody^]

Poxy forum lag

 

[noseall]

You don't even need a core bit.

 

[chris1982]

Thanks all. I am fitting the kitchen myself, but will need to get in an electrian anyway to do the wiring. So will ask him.

 

[chris1982]

You don't even need a core bit.

How would I do it without a core drill? Chiselling?
I am also wondering whether the wall insulation might come out.

 

[noseall]

How would I do it without a core drill? Chiselling?

Stitch drilling and chiselling.