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Bathroom Renovation in Singapore: Costs, Waterproofing, and Design Tips

Bathrooms are the second most expensive room to renovate after kitchens, and the stakes are equally high. Poor waterproofing leads to water damage, mould, and costly repairs affecting your neighbours below. Here is how to get it right.

5 min read 0 views 31 March 2026
Bathroom Renovation in Singapore: Costs, Waterproofing, and Design Tips

Bathroom Renovation Cost Breakdown (Per Bathroom) Budget (overlay existing tiles, new fixtures): S$3,000 to S$5,000 Mid-Range (full hack, new waterproofing, quality tiles and fixtures): S$6,000 to S$10,000 Premium (designer tiles, rainfall shower, frameless glass screen, heated towel rail): S$10,000 to S$18,000 Why Waterproofing Cannot Be Compromised HDB mandates waterproofing for all wet areas, and for good reason. A waterproofing failure does not just affect you. It causes water damage to the unit below, resulting in neighbour disputes, insurance claims, and expensive remediation. Proper waterproofing involves a minimum of 2 coats of waterproofing membrane, membrane extending at least 150mm up the wall (or 1800mm in shower areas), a 48-hour ponding test before tiling, and using flexible waterproofing compounds that accommodate building movement. Never Skip the Ponding Test: This is where the bathroom floor is flooded and left for 48 hours to check for leaks. If your contractor skips this step, you have a serious problem. Tile Selection Tips For bathroom floors, choose tiles with a slip resistance rating of R10 or higher. Matt or textured finishes provide better grip than polished tiles. Standard sizes (300x300mm or 300x600mm) are the most cost-effective because they minimise cutting waste. Large-format tiles (600x600mm or larger) create a sleek modern look but cost more in labour due to the precision required for installation. Get Bathroom Renovation Quotes → Tell Reno Research how many bathrooms you need renovated and your preferred style. Get matched with specialists who excel at wet-area work.

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