This tender invites contractors in Karachi for repair and maintenance work of Quarter No. W-4 at 9th Mile Karsaz Staff Colony under the Karachi Water and Sewerage Corporation (KW&SC). The scope includes masonry, carpentry, aluminum framing, plumbing, electrical wiring, and installation of sanitary fixtures. The site is located in a busy urban area requiring careful coordination and quality workmanship to maintain the colony's infrastructure. The work involves providing and laying cement concrete blocks, fixing doors, windows, aluminum channels, and sanitary fittings including lavatory basins and fiber glass tanks. Electrical wiring for light and fan points using PVC insulated wires is also part of the contract. The engineering challenges include ensuring durability and compliance with local construction standards while working within a residential environment. Contractors must be registered with Sindh Revenue Board (SRB) and Federal Board of Revenue (FBR) with active taxpayer status (ATL). PEC registration is required where applicable. The bid security and earnest money must be submitted as per the NIT, and all documents must be genuine to avoid disqualification. The financial year 2025-26 guidelines apply, and contractors should ensure compliance with all tax and registration requirements. The submission deadline is set for 26th March 2026 at 2:00 PM via the EPADS online portal. Bid opening will occur the same day at 2:30 PM in the office of the Accounts Officer (Sewerage) / Secretary Maintenance Works KW&SC, Room No. 12-A, 9th Mile Karsaz, Karachi. Physical submission of bid security is mandatory. Pro-Tip: Carefully review the NIT for the exact bid security amount and ensure the pay order is made in favor of Karachi Water & Sewerage Corporation. Missing this step is a common reason for bid rejection. Also, verify the stamp duty and integrity pact requirements to avoid disqualification.