Landed Bathroom Renovation in Singapore: Buying Guide

Distinguish a refresh from rebuilding the wet area

List the current problems: leaks, drainage, ageing fixtures, difficult access, cleaning or appearance. Replacing a vanity and accessories will not necessarily solve a concealed leak or an unsuitable floor arrangement. Have the relevant specialist investigate existing symptoms before defining the repair.

Compare what will remain and what will be exposed. If old finishes or waterproofing are retained, ask the contractor to explain the compatibility and limitations of the proposed work. If the room is rebuilt, identify demolition, substrate repair, plumbing, waterproofing, tiling and reinstatement separately.

For a new or relocated bathroom, obtain appropriate feasibility and clearance advice before treating the layout as confirmed. BCA’s private-owner guidance places those questions with the relevant QP; the word bathroom does not determine the approval route.

Sources: Building and Construction Authority: Building works not requiring approval

Plan the room around use and assistance

Draw the entrance door, toilet, vanity, shower opening and storage together. Include door and drawer movements, a place for clothes and towels, and the route between wet and dry activities. A large room can still be awkward if those movements conflict.

If the household anticipates care or mobility needs, describe the intended tasks and seek individual assessment where appropriate. AIC points owners towards occupational therapists or healthcare professionals for home-hazard assessment. Avoid selecting a generic accessible package without understanding the user.

Consider the route to the bathroom and its floor level within the house. An improved room may still be inconvenient if the person cannot comfortably reach it. Coordinate potential future support fittings and construction before finishes are complete.

Sources: Agency for Integrated Care: Making Your Home Safe

• Prepare a future-care bathroom brief

Confirm actual fittings before ordering

For a toilet, have the installer match the exact model drawing to the existing or proposed waste connection and finished surfaces. The installed projection and door movement matter as well as the connection. Kohler’s example drawing illustrates why a generic “standard size” description is insufficient.

For a concealed cistern, select the compatible assembly and confirm normal service access. Geberit explains access to compatible mechanisms through the flush-plate opening; ask separately how faults outside that opening would be investigated and repaired.

For covered water fittings, verify applicable PUB WELS information. Then confirm physical fit and service compatibility with the installer. A label does not establish that the product works in the proposed room.

Sources: Kohler: Toilet installation instructions 1408104-X2-A1 · Geberit Singapore: Geberit concealed cisterns · PUB: Water Efficiency Labelling Scheme (WELS)

• Confirm toilet rough-in before purchase
• Plan concealed-cistern servicing

Agree concealed-work evidence in advance

Ask the specialist to identify the waterproofing system, scope drawing and treatment of critical interfaces. Decide the inspection and test hold points before work starts, with the evidence required before the next layer covers the work.

Product requirements are specific. Sika’s wet-area membrane information distinguishes preparation, application, drying, testing readiness and protection. The contractor should tie the programme to the selected system rather than copy a universal number of coats or test timing from a generic article.

BCA’s CONQUAS framework includes method verification and wet-area watertightness. That supports separating installation evidence from functional checks; it does not mean an individual domestic renovation is automatically CONQUAS-assessed.

Sources: Sika Singapore: Sikalastic 668 Dampflex · Building and Construction Authority: CONQUAS: Construction Quality Assessment System

• Use the waterproofing hold-point schedule

Coordinate the screen, floor and fixing positions

Choose the screen arrangement by testing entry, cleaning and possible assistance. Hinged, sliding and fixed-panel arrangements solve different space problems. Show the usable opening and movement against the vanity and toilet.

Use the selected screen’s installation requirements for support, opening and fixing conditions. Kohler’s door manual is an example of how specific those conditions can be. The screen support detail must be coordinated with floor drainage and waterproofing.

For floor finishes, request the exact product’s intended application and relevant slip-performance evidence. A test label cannot promise that a slip will not occur. Have the designer assess the actual wet use, drainage, cleaning and users.

Sources: Kohler: Sliding shower door installation instructions 1443363-2-B · Daltile: DCOF: slip resistance testing and reading test results

• Compare shower-screen movement
• Evaluate an anti-slip tile claim

Compare complete bathroom scope

Ask bidders to price the same layout, fittings and concealed-work scope. Identify fixture supply versus installation, specialist work, protection, disposal and making good. Clarify whether accessories, screen, ventilation, lighting and storage are included or supplied separately.

Assign the junctions: plumber to waterproofing specialist, waterproofing to tiler, tiler to screen installer, and cabinetry to service access. A gap in responsibility can remain even when each trade has a separate price.

For uncertain conditions after demolition, agree the evidence and approval process for additional work. Require an explanation of the proposed response and programme effect. Do not assume that every concealed issue is included in a fixed package or that every discovery justifies the same repair.

Plan bathroom access during the works

If the house has several bathrooms, decide which remains usable and how trades move through the occupied areas. Confirm interruptions to shared water or electrical services with the relevant installer. A bathroom outside the work zone may still share a service being altered.

If only one usable bathroom exists, agree a practical temporary arrangement before demolition. Programme decisions should respect the chosen materials’ requirements and specialist inspections, rather than compress concealed stages to match an assumed reopening date.

Keep late accessory and screen changes coordinated. New fixing positions after waterproofing should be reviewed before installation.

Review the room and its records together

Have installers demonstrate normal fitting and screen operation, intended isolation, accessible components and drainage under the agreed normal-use check. Compare movements and storage access with the approved layout.

Retain final drawings, product references, concealed-work photographs, test records, manuals and care instructions. Label records by bathroom location so a future contractor can distinguish similar rooms.

Record defects and the agreed response. A warranty should state covered work and the treatment of access and reinstatement; a headline duration does not explain every repair scenario. Good records make later investigation clearer without promising a fault-free lifetime.