Hi, I need some advice on bathroom renovation.

I've been given a quotation:
"To dismantle and fix new tiles for 5 1/2 x 9' bathroom - RM4,100"
"To dismantle and fix new tiles for 112" x 51" bathroom - RM4,300"

I know, it's very vague right? I don't even know if this includes the price of the tiles, or am I too naive to think that it does? I'm totally clueless when it comes to this, so please bear with me. If I want to redo my wall and floor tiles, is it normal for the contractor to quote me ONLY the labour charges (hacking, cement, laying new tiles..), and is this RM4,100 and RM4,300 the labour charges, or do you think this includes the new tiles?

I got this quotation from the contractor through an ID (who emailed it to me), and I've not gotten a reply from her about my above queries yet. Just wanted to some advice from people who are well-versed in this.

I would also like to obtain some recommendations on good bathroom contractors from you guys who've been through this (and survived haha!).. I need another quotation to make a comparison with this one that I got. Or... how many quotations does one need actually huh? Please drop me a note. Thanks. - Kel.

as absurd as it sounds, it could be true.
try digging when did waterproofing came about or was invented. many many moons ago, there was no such product to begin with. it realied heavily on the concrete. that is why we have water retaining structures.
when waterproofing came along, somehow it gave more options for openings and holes in the wall, floor, blah blah blah. or was it vice versa.
but knowing today's standards and workmanship, quite likely waterproofing is a necessity.
the house that i'm about to renovate, the leakage was so bad that the soffit of the slab has stained so bad that concrete is literally falling off and exposing the rebars.

as absurd as it sounds, it could be true.
try digging when did waterproofing came about or was invented. many many moons ago, there was no such product to begin with. it realied heavily on the concrete. that is why we have water retaining structures.
when waterproofing came along, somehow it gave more options for openings and holes in the wall, floor, blah blah blah. or was it vice versa.
but knowing today's standards and workmanship, quite likely waterproofing is a necessity.
the house that i'm about to renovate, the leakage was so bad that the soffit of the slab has stained so bad that concrete is literally falling off and exposing the rebars.