Has anyone had experience of chasing in brickwork?

[hutch6447]

Good info, also as I am just used to surface laying this whole chase cutting is a bit of a new experience, now the chases has capping in it and has to be deep enough to accommodate it, the metal back boxes are 35mm deep so sometimes do you have to chase into the brickwork itself as sometimes you must o deeper than render? Take it this is the reason for vertically 1/3 wall thickness horizontally 1/6 no deeper than.

 

[Richard]

I'm amazed no one has mentioned using a Wall chaser! Disc the wall where needed, SDS max - end of story!

 

[derek preece]

We use a Hilti chaser (basically a grinder with 2 disks, with wheels for running up the wall and adjustable depth). Then use a lightweight breaker after that.

 

[Deleted member 9648]

Chasing machine with a vacum attatchment....consists of two parallel 4" diamond blades about 25mm apart,cuts a chase deep enough for 20mm conduit...nice and neat. Connected to a standard commercial vac there is virtually no dust,I've used it to cut chases in decorated and furnished rooms. not cheap but if you do a lot it will pay for itself in no time at all.
Cutting boxes in brick nothing touches a line of 6mm holes round the outline and a club hammer and chisel.

Edit...Derek uses the same set-up evidently!

 

[GLENNSPARK]

not proper bricks, but some of the crap they use nowadays has the strength and consistency of weetabix.

thermalite and cavity block........gone straight through it loads of times.....

 

[johnboy6083]

buy the scutch chiselfor an SDS drill with roto stop. Its the dogs

 

[SPARTYKUS]

Heard a story once how he knocked a brick too many out in a terraced house and found himself intriducing himself to an elderly couple next door watching TV in t' lounge.

 

[Knobhead]

Can't beat one of these

View attachment 10481

 

[Lucas]

For boxes I draw my box out and put an 18mm drill bit in each corner and inbetween eachcorner. Then I use a single box size chisel on my sds drill and cut it out. If I can't get a good fixing I bond the boxes in. Genuinlly don't see why people bother going by hand in this day and age

 

[ample current]

I use my makita drill on hammer only with a small chiesel bit in it, might invest in a scutch comb bit though after reading this thread

 

[Engineer54]

I had to laugh at the title of this thread ...lol!! I wonder how he thinks back boxes are set into walls?? Also had to have a laugh at the suggestion of dot and dab, ...thought this was an electrical forum!! lol!! You can just imagine telling the customer, ...right i've got all my cables in, so if you can call in the builders now to dot and dab all the wall's, so that i can fit my boxes in!! lol!!!

A good wall chaser with a vacuum attached, will sort out the drops. An SDS with drill to make an outline round the the marked up box position, ...then with the rotary off, and a scutch chisel attachment will normally make short work of the rest.... It only becomes difficult when your up against the old engineering bricks, some those things are like chasing iron!! lol!!

 

[GLENNSPARK]

I had to laugh at the title of this thread ...lol!! I wonder how he thinks back boxes are set into walls?? Also had to have a laugh at the suggestion of dot and dab, ...thought this was an electrical forum!! lol!! You can just imagine telling the customer, ...right i've got all my cables in, so if you can call in the builders now to dot and dab all the wall's, so that i can fit my boxes in!! lol!!!

A good wall chaser with a vacuum attached, will sort out the drops. An SDS with drill to make an outline round the the marked up box position, ...then with the rotary off, and a scutch chisel attachment will normally make short work of the rest.... It only becomes difficult when your up against the old engineering bricks, some those things are like chasing iron!! lol!!

yep....you know when you hit those.....as the chisel point just bounces off em...lol....

 

[westy2412]

Chasing brickwork is one of the worst jobs ever, I hate doing it

 

[ste mac]

Scutch chisel in Bosch SDS for me, I have a disc wall chaser too but you need a GOOD vac to keep up! Pet hate is the hollow blocks, just as you get to box depth you break through into the hollow:mad2:

 

[SPARTYKUS]

Best way to chase out?


Answer: get someone else to do it.