Buildings B

Appendix 24Cost Reference for General Maintenance WorksDescription Unit Unit Rate in HK$Spoiling Repair• External Wall• Internal beam and column• Internal wall and ceiling• Internal crack repair by injection groutm 2m 2m 2m1,000-2,800900-2,300900-2,000600-1,200Doors and Windows• Replacement of single-leaf half-hour fire resistant hard wooddoor including painting and ironmongeries• Replacement of single glazed clear anodized aluminium windowNo. 4,500 - 6,500' m 21,200- 1,800Plumbing and Drainage• Replacement of uPVC drain pipe main stack not exceeding150mm diameter• Replacement of cast iron drain pipe main stack not exceeding1 50mm diameter• Replacement of copper water supply main riser not exceeding80mm diametermmm480-550650 - 750680 - 780Electrical Works• Re-wiring (average 70m 2 flat) not exceeding 20 Nos. of powerpointsflat 7,000 - 1 2,000Test• CCTV survey to underground drains (approx. 50m)• Hammer tapping to external wall including double framedscaffoldingJobm 230,000 - 40,000250-350• Thermal scanning to external wall excluding scaffolding (approx.1000m 2 )Job25,000 - 30,000Appendix 24