Bathroom Renovation in Kangkar

If the renovation strips the shower area back to the substrate, waterproofing must be redone — a failed membrane is the most expensive bathroom defect there is, because the fix means demolishing finished tiling. Several countries regulate wet-area waterproofing explicitly. Never let a contractor tile directly over an old or damaged membrane.

Around 10-20% is normal, sometimes more where custom vanities or imported fittings must be ordered up front — in that case pay the supplier invoice share, not a round 50%. Hold 5-10% back until the room has been used for a week or two and the snag list (grout gaps, silicone, door alignment) is closed.

Only in limited ways. Swapping a vanity, toilet, or taps in place works as standalone jobs, but anything touching the shower area, waterproofing, or tiling should be done in one hit — redoing tiles twice or breaking a waterproof membrane to add something later costs more than doing it together.

Not the one being renovated — water is disconnected and the floor is out of service for most of the project. If it is your only bathroom, ask the contractor to sequence works so the toilet is usable overnight where possible, and plan for gym showers or neighbours for the tiling and waterproofing week.

In rough order: whether you move plumbing (relocating the toilet or shower is the single biggest multiplier), the quality tier of tiles and fittings, bathroom size, waterproofing scope, and access (upper floors and apartment buildings cost more). Labour typically makes up 40-60% of the total, so a bigger bathroom does not scale cost linearly — fixture count matters more than floor area.

Keep the existing layout, choose mid-range fittings from stocked lines rather than special orders, use large-format tiles only on feature areas, and paint rather than tile ceilings and upper walls. Do not economize on waterproofing, drainage falls, or the tiler's labour — those are the items whose failure costs multiples later.

A single HDB bathroom typically runs S$4,000-S$12,000 depending on whether floors are hacked and waterproofing redone; renovating both bathrooms together commonly lands around S$8,000-S$18,000. Condo master bathrooms run higher, S$8,000-S$25,000.

HDB prohibits hacking floor and wall finishes in new BTO bathrooms for 3 years to preserve the original waterproofing warranty. You can still change fixtures, vanities, and accessories in that window — full retiling has to wait or use approved overlay methods.