This tender invites qualified contractors in Lahore under Pakistan Water and Power Development Authority (WAPDA), Lahore Division for HVAC and ducting works. The scope includes dismantling, supply, installation, testing, and commissioning of two new Air Handling Units (AHUs) located on the ground floor 'F' and first floor 'H'. Each AHU has a cooling capacity of 16 RT and an air flow rate of 6400 CFM, powered by a 5 kW induction motor. Additionally, the contract covers the turnkey installation of treated and untreated fresh air duct lines with insulation covering 3400 square feet. The project demands precise engineering and quality materials to ensure efficient air handling and insulation performance in WAPDA House Lahore. Contractors must be prepared to manage the complexities of working within an operational building, ensuring minimal disruption and adherence to safety standards. The turnkey nature requires comprehensive handling from dismantling old units to commissioning new systems. Bidders should hold a valid PEC category relevant to HVAC or mechanical works and must be registered with FBR, appearing on the Active Taxpayer List (ATL) for the fiscal year 2025-26. Compliance with PPRA rules and submission of a 5% Call Deposit Receipt (CDR) as earnest money is mandatory. This ensures financial and technical credibility. The submission deadline is set for 03 February 2026 at 12:00 PM, with electronic bids to be submitted via EPADS portal. Bid opening will occur the same day at 12:30 PM in Room No. 311, WAPDA House Lahore. Original bid security must reach the office before closing time. Pro-Tip: Carefully review the bid security requirements and ensure the CDR is submitted in original form on time, as late or incomplete submissions are commonly rejected. Also, verify the technical specifications on EPADS to avoid disqualification due to non-compliance.