Does anyone have any advice on cutting channels in brick walls for
conduit. Two friends of mine have recommended using a small angle grinder
to cut two slots in the brickwork and then chisel out the middle.
1. Is there a better way?
2. Is this dangerous?
3. As I do not have an angle grinder I shall be looking to buy one, are
cordless models available?
I'm not too worried about mess as the house is a bit of a building site
Thanks in advance,
Agreed but how else do you conceal wires between floors, especially if there
are no cupboards. I'd have thought its excepted these days to find wires
buried in walls. The instillation of any product requiring the drilling of
a hole in a wall usually recommends you check there are no wires or pipes
======================================When people say check for any Wiring buried in the Wall does not mean
exactly that, what they mean is under the plaster.
As for this point can you be a bit more elaborate.?
How do you conceal wires between floors, especially if there are no
I have several (50+) CAT5 cables to get from the ground floor to the first
floor. There are no cupboards on the ground floor so running them up a wall
in a cupboard is out of the question. So my only option is to run them up
the wall in the hall way. The plaster is only about 1/2" thick so unless I
run several pieces of slim conduit I need to run maybe two pikes of 40mm x
30mm conduit. I am planning on cutting 35mm into the wall which will
involve cutting the brick as well as the plaster. To I will end up with a
5mm skim of plaster over the conduit.
Did you really mean 50? (yes, I can quite see how you could be using
that many, just checking really - it's rather more than 'several')
Not necessarily a bad idea.
An angle grinder will work, but it will create a massive amount of very
fine dust. Having done this once I would try to avoid doing so in the
future, I certainly would only try to do it again in an unoccupied house
with a lot of other works going on.
It is safe enough (as angle grinding goes) my main problem was actually
seeing the wall, once I was halfway up though dust caked
I can't say I've seen a cordless anglegrinder, but I'm sure they are
around, but will lack some oomph I suspect. A basic mains one is cheap
You can get wall chasers which will do a better job, and make a a less
mess, you could hire one.
An alternative is a SDS drill with a couple of chisel bits. The ease of
this option depends on the hardness of the bricks. I wouldn't want to do
is every day but as a one of it'd be ok. If you don't have an SDs drill,
then I would think someone running 50 CAT5 cables around the house is
probably doing enough work to justify one.
For that many wire's I'd probably run them up in a corner of the room, and
box them off (then plaster over and decorate). There's bound to be a
location where it wouldn't look out of place - like in a corner next to a
Depends on what you mean by better.... ;-)
Several choices (in no particular order):
Hammer & chisel - not too much dust, but hard to impossible work
depending on your bricks.
Angle grinder - if you go this route then invest in a diamond blade for
it - they cut cleaner, faster, and with less mess (they make a thinner
cut - so less material in the air). One diamond blade will also outlast
many many (probably hundreds) of "ordinary" abrasive discs)
Channelling bit in a SDS drill (hammer mode) - less mess and less
airborne dust. The special bits also also let you extend channels behind
skirting etc. May not be up to much with hard brick though.
Bolster bit in SDS drill, not as neat as above - but the bits are
cheaper and it will hack harder brick if required. May also be better if
you want a channel of "non standard" width.
Wall chaser - some of the beasties are like a pair of angle grinder
diamond discs spinning side by side so they cut parallel lines. They
also have much better (i.e. some!) shrouding to allow for dust collection.
Either of the last 3 would be preferable to the straight angle grinder I
would have thought.
nope - not especially - try to avoid using any major limbs as a blade
For the sort of job you describe a mains powered one would be the only
It is hard to describe the amount of dust (thick heavy stuff that
settles *everywhere*) you will create with a grinder in a confined
space. Put it this way - by the time you have cut 2 meters of slot, you
will not be able to see the wall in front of your face - let alone where
you are cutting!
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