Tiling on hardwall - is this a big no no?

[Huddersfield Tiling]

Never listen to a builder when it comes to tiling.
Tiling work is subject to much more strict regulations than builders follow.
Builders don't care once they have done their bit at a tolerance of +/- 20mm.
The tilers tolerance is +/- 4mm on a suitable substrate over 2m.

 

[Pothole]

Never listen to a builder when it comes to tiling.
Tiling work is subject to much more strict regulations than builders follow.
Builders don't care once they have done their bit at a tolerance of +/- 20mm.
The tilers tolerance is +/- 4mm on a suitable substrate over 2m.

Thanks very much - good point - builder is a bit rough and ready it seems.
The builder is going to quote for fixing the backer boards but anything outside of the original quote is always in the thousands unfortunately...
Can I ask, it sounds like a time consuming job getting the screws into the hard bricks. Would a tiler often be tasked with the job of fixing the backer boards on? I've mentioned it to our tiler and he said to ask the builder first. I didn't know if he wasn't that keen because he's not often having to do it

 

[Trigger]

Each to there own really. I like to do my own prep work as I know it will be done properly. Its not overly difficult to drill through a board into brick, plug it and screw it. A half decent sds drill will fly through it.

 

[Huddersfield Tiling]

So, a quick and cost-effective way of solving the issue is to create a suitable background to receive tiling. Without viewing the walls, I would suggest over-boarding the walls using 12.5mm plasterboard using dry wall adhesive (if suitable to do so). Then use a tanking kit to prepare and make the plasterboard waterproof to accept and fix tiles onto.