What the Assure 3 warranty scheme covers: Defect: Ceiling leaks in the toilet and kitchen

Warranty period: Five years

Improvements by HDB: Cast-in UPVC pipes are used for toilets and kitchens. The cast-in pipes are well bonded to the floor slab, preventing water from seeping through.

Defect: Water seepage from external walls

Warranty period: Five years

Improvements by HDB: Precasting window frames with facade panels eliminates the need for joints between window and wall, where water can seep through.

Defect: Spalling concrete

Warranty period: 10 years

Improvements by HDB: Use of higher- grade, denser concrete which gives better protection against the material cracking up.