Dubai Marina towers use a mix of fan coil units (connected to central chillers) and individual split systems. Our services include fan coil servicing and motor replacement, duct cleaning, condensate drain maintenance, split unit installation, gas refills, and air quality testing. The most common issue in Marina towers is condensate drain blockages causing ceiling water damage -- we flush and treat all drain lines during routine maintenance. Fan coil servicing runs AED 300-500. Duct cleaning for a 1-bedroom apartment costs AED 600-900. Annual maintenance contracts start at AED 700, with priority scheduling for emergency calls.