This tender invites experienced contractors in Islamabad to provide and fix PVC fills for the cooling towers of the HVAC system at the Central Library, Sector H-10 Campus, International Islamic University Islamabad. The department requires specialized HVAC work ensuring efficient cooling tower performance and system longevity. The scope involves supplying quality PVC fills designed to optimize water flow and heat exchange in the cooling towers. The site at H-10 Campus demands careful handling of materials and adherence to technical specifications to maintain system integrity and operational efficiency. Contractors must be familiar with HVAC standards and installation challenges in institutional environments. Bidders must hold a valid PEC registration under Category C-6 with specialization ME-01 HVAC. Compliance with FBR and ATL requirements for the financial year 2025-26 is mandatory. Tenderers should ensure their documentation includes a valid income tax certificate, original Call Deposit Receipt for tender fee and earnest money, and a declaration of no blacklisting or litigation with any government or semi-government entity. The submission deadline is set for 22 January 2026 at 10:30 A.M., with bid opening at 11:00 A.M. in Room No. 121, Admin Block, IIUI Sector H-10 Campus, Islamabad. Bids must be submitted through the PPRA EPADS online portal only, supported by hard copies of required documents. Pro-Tip: Carefully review the tender documents on EPADS for any specific stamp duty or earnest money submission details, as these are common pitfalls that can lead to bid rejection. Ensure all PEC and tax documentation is current and properly certified to avoid disqualification.