Commercial HVAC in Islamabad: Cost, ROI, and What to Specify

Whether you're fitting out a 2,000 sq ft retail outlet in Blue Area or a 40,000 sq ft corporate office in Bahria Town, your HVAC system will be the single largest line item on your MEP budget and the single biggest driver of your monthly running costs for the next 15 years.

Step 1 Get a proper heat-load calculation

Walk away from any contractor who quotes tonnage based on square footage alone. A real calculation considers occupancy, lighting load, IT equipment, glazing area and orientation, insulation, ventilation rates, and altitude.

Step 2 Pick the right system topology

Under 5 tons total: light-commercial split or cassette units. 5–25 tons: VRF or ducted splits. 25+ tons: VRF or chilled-water with AHUs.

Indicative pricing in 2025

Light-commercial split installation: Rs 90,000–140,000 per ton turnkey. VRF system installation: Rs 180,000–280,000 per ton turnkey including refnet, controls, and commissioning.