Repair and Maintenance Works on PRCC and M.S Trunk Mains and Sewerage System by Karachi Water & Sewerage Corporation

Karachi Water & Sewerage Corporation (KW&SC) invites bids for various repair and maintenance works for the financial year 2026-2027 in Karachi. These works include repair and maintenance of PRCC pipes of different diameters, M.S trunk mains, and sewerage systems across multiple divisions and towns within Karachi. The procurement is conducted under an Open Competitive Bidding / Single Stage One Envelope System. Items being procured: - Repair & maintenance work on 54" & 48" diameter PRCC pipe new Pipri main work - Repair & maintenance work on 54" & 33" diameter PRCC pipe Haleji main work - Repair & maintenance work on different diameter PRCC pipe Korangi main work - Repair & maintenance work on 33" diameter PRCC pipe Malir main work - Repair & maintenance work on different diameter trunk main for water supply improvement under Landhi Old Pipri main work - Repair, maintenance of PRCC and M.S trunk mains including fixing and replacement of M.S sleeves, stepped collars, inspection tees, pipes, tail pieces, butterfly valves, gear boxes, air valves, neck flanges, blank flanges, excavation and dewatering with excavator, internal and external Vattas, block masonry and RCC chambers (HTM Division I & II) - Repair and maintenance work of PRCC M.S and P.E pipes including over-hauling and fixing new butterfly/sluice valves for Federal Trunk Mian Division - Repairing leakages on different diameter pipes and over-hauling gear boxes including cleaning and removal of blockage in Dumlottee conduit - Repairing leakages on different diameter trunk Mian over-hauling of gear boxes, valves and chambers for CTM Division - Replacement and improvement of sewerage system including laying RCC sewer lines, repairing broken manholes, fixing RCC ring slabs, and cleaning de-silting in Lyari Town (SEW) - Rehabilitation of old contaminated water lines and replacement of damaged sluice valves with construction of C.C block masonry chamber in Shah Faisal Town - Improvement of old encroached and contaminated water lines by replacement and installation of PE water pipes in Shah Faisal Town The technical scope covers extensive civil and mechanical repair works on water supply and sewerage infrastructure across Karachi. Bidders must be registered with PEC in relevant categories (C-5, C-6) and on the Active Taxpayers List (ATL) of FBR. Earnest money and bid security amounts vary per lot, with detailed corrigendum issued for revised bid securities. The tender was published on 1st September 2026, with bid submission deadline on 18th September 2026 at 2:00 PM. Bids will be opened at 2:30 PM on the same day at the KW&SC office, Room #12-A, 1st Floor Block-C, Karsaz Shahrah-e-Faisal, Karachi. A practical tip for bidders: Carefully review the corrigendum issued on 1st September 2026 which revises bid security amounts for certain lots. Ensure your bid security matches the updated requirements to avoid disqualification. Also, use the EPADS portal for bid submission as per instructions. This procurement offers a significant opportunity for contractors specializing in water and sewerage infrastructure maintenance in Karachi, with multiple lots available to suit different capacities and expertise.