Choosing the tile is the easy part. This is the other half — what a tiling contractor has to get right underneath and behind the tile, how the trade is priced in the Klang Valley, and how to check the finished job before you release the final payment.
A tiling contractor is responsible for a build-up, not a surface. On a typical Klang Valley job that build-up runs: check and prepare the structural slab or wall, correct the levels with screed or render, form the falls in wet areas, allow the waterproofing to be applied and tested, set out the tiling, fix the tiles in a suitable adhesive, grout, seal, and finish the edges and junctions. Some of those steps may be carried out by other trades on a larger renovation — which is exactly why the contract has to say who owns each one.
The commonest dispute on a small tiling job is not price, it is scope at the boundary. Who hacks off the old tiles and disposes of them? Who levels a slab that turns out to be 15 mm out over three metres? Who supplies the trims, the skirting and the aluminium angle at the door? Who lays the waterproofing, and who tests it? If you are tiling as part of a wider job, read our guide to reading a renovation quote and settle those five questions before work starts, because every one of them becomes a variation order once the tiler is on site.
Tile is rigid and thin. It does whatever the surface under it does, so the substrate is the real specification. A floor that is out of level gets corrected with screed or a levelling compound before tiling, not with extra adhesive under the low corner — a thick, uneven adhesive bed shrinks unevenly and is one of the reliable ways to produce hollow tiles. Walls get the same treatment: a wall that was never rendered flat will telegraph every hollow through a large-format tile. Our cement render and skim coat guide covers that preparation as its own priced trade.
Flatness matters more the bigger the tile. A 300 × 300 mm tile forgives a ripple that a 600 × 1200 mm tile turns into visible lippage — one edge standing proud of its neighbour — which is both a trip hazard and the first thing a guest notices. In wet areas there is a second requirement pulling the opposite way: the floor must not be flat at all, it must fall consistently towards the floor trap so water leaves rather than ponds. Falls are set in the screed, before tiling. A bathroom that ponds after a shower was almost always mis-screeded, and it cannot be fixed by regrouting.
What the substrate has to achieve changes area by area, and so does the question you have to settle before anyone starts. A bathroom or shower floor needs a continuous fall to the floor trap with no flat spots and no back-falls, so agree who forms the screed and whether a water test follows the waterproofing. A wet kitchen or yard needs the same fall to its outlet over a sound screed, so agree whether the existing screed is retained or taken up and who disposes of it. A living-room or bedroom floor in large format needs flatness above everything, so agree whether a levelling compound is included or becomes an extra the day the slab is found out of level. Internal walls need to be rendered plumb and flat, sound, dust-free and not freshly painted, so agree whether render or skim sits in the tiler’s scope or belongs to another trade.
Two situations deserve their own sentence. External areas — balconies, car porches, roof terraces — need a fall away from the building, a sound substrate and somewhere for movement to go, so establish whether waterproofing below the tile is included and who details the perimeter upstand. And tiling over an existing tiled floor is sometimes sensible and sometimes a trap: it only works if the existing tiles are sound, solidly bonded and clean, and it has to be agreed in writing along with what happens to floor levels at every door threshold. If the old floor is already drumming in places, you are bonding a new layer to a failing one.
In a wet area the waterproofing membrane goes on the prepared screed and up the walls, and the tile goes on top of it. The tile and grout are a wearing surface, not a waterproof layer — grout is cementitious and water moves through it. This is the single most misunderstood point in Malaysian bathroom renovation, and it is worth saying plainly: grouting is not waterproofing.
Sequence is therefore a hard constraint on the programme, and it is where a rushed job goes wrong. The membrane needs its stated curing time before it is covered, a water (ponding) test is the only honest way to prove it before the tile hides it forever, and the floor trap, pipe penetrations and the wall-to-floor junction need detailing rather than a brush-over. If your tiler tells you the waterproofing can go on the same morning the tiles do, that is a red flag rather than efficiency. See bathroom waterproofing requirements, bathroom waterproofing and wet kitchen floor waterproofing for what the membrane work itself involves — and note that in a condominium a leak into the unit below becomes an inter-floor leakage matter, not just your own repair bill.
Tiles are fixed either in a cement-and-sand bed or, increasingly, in a notched-trowel bed of proprietary tile adhesive. Either way the objective is the same: solid, continuous contact between tile and substrate, with the voids squeezed out. The commonest shortcut in the trade is the dab — five blobs of adhesive on the back of the tile, pressed on. It is fast, it looks identical on day one, and it leaves most of the tile sitting over air.
You can hear the result. Tap a finished floor with a coin or a knuckle and a solidly bedded tile gives a dull knock while a void gives a hollow ring. Hollow tiles are not merely a noise: the unsupported area cracks under a dropped pot or a heavy trolley wheel, the edges chip, and in a wet area the void fills with water. Ask the contractor, in writing, what fixing method and what adhesive class is being used, whether the tiles are back-buttered on large formats, and agree that hollow tiles found at handover are made good at their cost. Popped and drumming tiles in an older Malaysian home are a repair job of their own, usually caused by exactly this and by missing movement joints.
Setting out is the half-hour of thinking that decides how the room reads for the next fifteen years. A good tiler establishes the datum line first, works out where the cut tiles will fall, and shifts the grid so that full tiles land on the sight lines and the slivers land where nobody looks. A bad tiler starts in one corner and lets the offcut land wherever it lands — which is how you end up with a 20 mm strip down the most visible wall of the bathroom.
Ask to see the setting-out before fixing starts. In practice that means a dry lay, or at least chalk lines on the floor and a conversation about four things: where the full tiles start, which edges take the cuts, how the floor grid relates to the wall grid, and how the tiling meets the door threshold, the skirting and any change of material. Pattern, direction and grout-joint width are all part of it. Cuts themselves are a skill test: clean, straight cuts around a floor trap, a tap spindle or a socket, finished with a trim or a neat mitre rather than smeared with grout, are the fastest way to tell a tradesman from a labourer.
Grout fills the joint; it does not hold the tile on and it does not keep water out. Joint width is a decision, not an accident — narrow joints suit rectified large-format porcelain and wide joints suit tiles with more dimensional variation, and trying to lay a tile with a joint narrower than it was made for produces the lippage you were trying to avoid. Cementitious grout in a wet area is sealed after it cures, and it is resealed periodically. Epoxy grout resists staining and water far better and is the usual upgrade for wet kitchens and shower floors; our tile comparison guide publishes it as an add of RM1–RM3 per sq ft on top of the supply-and-lay rate.
Movement joints are the part nobody quotes and everybody needs. Tile, screed and the building itself all expand and contract, and if the tiled field has nowhere to move, the stress is released as a crack — usually a straight line across the floor or a row of tiles debonding along a wall. A competent contractor leaves a flexible joint at the perimeter of a tiled field, at internal corners, at changes of substrate and over structural joints, filled with a suitable sealant rather than hard grout. Large external areas and long runs need them most. On balconies and car porches the same detail matters for water: see why car porch tiles seep water upward.
Tiling is normally quoted per square foot, supply and lay, with the tile grade named. The figures below are the ones ClickBina already publishes in our tile comparison guide, and they include mid-range tile, adhesive, grout, basic labour and a normal wastage allowance. They are planning ranges for the Klang Valley, not a quotation for your room.
| Tile type | Supply + lay (RM / sq ft) | What moves you within the range |
|---|---|---|
| Ceramic (walls, dry floors) | RM10–RM18 | Tile grade, room size, how many cuts and how awkward the room is |
| Homogeneous (full-body) | RM15–RM30 | Format, finish and traffic grade |
| Porcelain | RM18–RM35 | Rectified or not, format, slip class, wet or external area |
| Mosaic | RM20–RM45 | Sheet or loose, niche and border work, labour intensity |
| Marble / granite (natural stone) | RM30–RM80 | Stone grade, slab handling, sealing and polishing |
| Large-format labour add | +RM2–RM5 | Applies to the largest formats: handling, cutting and substrate flatness |
| Hack and dispose existing tiles | +RM3–RM6 | Bonded strength of the old bed, debris disposal and access |
| Epoxy grout instead of cementitious | +RM1–RM3 | Joint width and total joint length |
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💬 Get Your Instant QuoteFor scale, the same guide puts a typical Malaysian bathroom of roughly 50–60 sq ft at about RM1,500–RM3,500 depending on the tile chosen and whether the old tiles are hacked out first. Two things are deliberately NOT in these rates and have to be priced separately: screed or levelling to correct a slab, and the waterproofing membrane itself. If a quotation is silent on both, it is cheaper than its rivals only because it has quietly left them to you. Room-level budgets sit in our bathroom renovation cost guide and renovation cost guide.
A single line reading “supply and lay tiles — RM…” is not a quotation, it is an invitation to a variation order. Ask for this structure, and compare quotations line by line rather than on the bottom figure:
| Line item | What it must state | Red flag if missing |
|---|---|---|
| Measured area | Floor and wall areas separately, with wastage allowance stated | A lump sum with no area — nothing to check the final bill against |
| Tile | Brand or grade, size, finish, slip class for wet areas, and who supplies it | “Tile of similar quality” |
| Removal of existing finishes | Hacking, debris removal and disposal, priced per sq ft | Assumed to be free, then charged as an extra |
| Substrate preparation | Screed, levelling compound and falls — included, excluded, or provisional | Silence; this is the classic scope gap |
| Waterproofing | Product, number of coats, upstand height, curing time and whether a water test is done | Bundled into “tiling” with no product named |
| Fixing method | Adhesive type and class, notched-trowel or cement bed, back-buttering on large format | Not stated — leaves the dab method available |
| Grout and sealant | Grout type, colour, joint width, sealing, and sealant at movement joints | No mention of movement joints at all |
| Trims and finishes | Edge trims, skirting, thresholds, corner beads and who supplies them | Left out, then charged at handover |
| Making good | Hollow, lipped or chipped tiles rectified at the contractor’s cost | No defects clause |
| Programme and payment | Start date, duration, curing allowances, and a retention held to handover | Large deposit, no schedule — see our deposit scam guide |
Never pay the full amount on the day the last tile goes down. Grout, sealant and waterproofing all need curing time, and several defects only appear once the room is used. A retention released after a short defects window is normal and reasonable — our renovation payment schedule guide and deposit scam guide explain the usual shape.
You do not need instruments to run a competent handover check. You need a coin, a spirit level, a bucket of water and twenty minutes in good light.
| What you see or hear | What it usually means | What to require |
|---|---|---|
| Hollow ring when tapped | Voids under the tile — dabbed or poorly bedded | Tiles lifted and re-laid solidly, at the contractor’s cost |
| One tile edge standing proud of the next | Lippage from an uneven substrate or rushed levelling | Re-lay the affected area; on large format, correct the substrate first |
| Water standing on the floor after a shower | Falls wrong or absent — a screed fault, not a grout fault | Screed and re-lay the fall; regrouting will not fix it |
| Slivers of cut tile on the most visible wall | Setting out was never done | Agree setting out in advance; it cannot be fixed afterwards without re-tiling |
| Grout cracking in a straight line | Missing movement joint, or movement in the substrate | Form a proper flexible joint rather than refilling with grout |
| Grout washed out, pinholes, uneven colour | Grout worked too wet, or cleaned off too early | Rake out and re-grout the affected joints |
| Smeared silicone at the wall-to-floor junction | Finishing rushed; the joint most likely to leak | Cut out and re-apply a neat, tooled sealant bead |
Ask to see finished work rather than a catalogue: a bathroom two years old tells you more than a showroom. On site, look at the cuts around the floor trap and the tap spindles, tap the floor, sight along the wall for lippage, and look at the junction between floor and wall. Ask what the contractor does when a slab turns out to be out of level — the honest answer involves screed and a variation, not thicker adhesive.
Then check the commercial side. Get the quotation in the itemised form above. Confirm who is actually on site and whether the work is sublet. For larger or commercial projects check CIDB registration, and read our guide on choosing a renovation contractor and on contractor overcharging. If you are tiling in a strata building, the management’s renovation rules govern working hours, debris removal and the deposit — hacking old tiles is noisy work and it is the most common source of a neighbour complaint. Where impact noise into the unit below is a concern, the resilient layer under a tiled floor is decided at this stage and never afterwards; see our acoustic and soundproofing guide.
ClickBina takes on tiling in the Klang Valley as new work and as part of a full renovation — measured areas, named tile and adhesive, the waterproofing sequenced and tested before tiling, and an itemised quotation you can compare against anyone else’s. Choosing the tile itself? Start with our tile comparison and flooring types guides.
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