Subcontractors 1. Duct AC service 2. Duct AC repairing and replacing for part fixing 3. Duct AC installation indoor and outdoor 4. Pi duct sheet installation 5. Split AC installation indoor and outdoor 6. Villa fitting copper piping 7. Split AC and window AC repairing and servicing 8. Copper pipe brazing and fixing 9. Compressor replacement 10. Motor changing and coil repairing