Bathroom Renovation in Bukit Merah Estate

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.

Make every quote in Bukit Merah Estate state: strip-out and disposal, first-fix plumbing and electrical, waterproofing (product named), tiling with a per-square-metre rate and tile allowance, fittings supply (brands listed or marked as owner-supplied), and second-fix. The cheapest quote is usually the one missing a line — often waterproofing or disposal.

It can work on sound, well-bonded wall tiles and saves strip-out cost, but it fails on floors with movement, adds thickness that fouls doors and fittings, and hides the condition of the substrate and membrane. Most renovators strip back in wet areas — if a contractor proposes tile-over-tile in the shower zone specifically, treat it as a cost-cutting red flag.

Run every fixture: check drainage speed, look under the vanity for weeps, confirm the shower floor falls to the drain (pour a bucket and watch), check grout lines are even and silicone is continuous, and test the extractor fan. Photograph everything and get the waterproofing product and warranty terms in writing before releasing final payment.

Buying your own toilet, vanity, and taps gives price control; buying through the contractor makes them responsible for defects, wrong sizes, and delivery timing. A common middle path: contractor supplies everything built-in or warranty-critical (shower valves, waste, membrane), you supply visible items like mirrors and accessories. Whoever supplies an item owns replacing it if it arrives damaged.

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.

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.