Business Bay office, months after the fit-out little things are showing up (doors, AC balance, snags), whose job is the aftercare?

What you are seeing is completely normal for the first few months of a new office fit-out, the space settles into daily use and into the building, and a snag list appears, the question is just which items are the contractor's to close and which are now ongoing upkeep. The ones to chase as snagging are the defects: partition doors that have dropped and rub (adjustment or re-hang), finishes that are loose, lifting or shrinking back, and any electrical or joinery item that was not right at handover, these should be fixed under the defects period your fit-out contract almost always includes, at no extra cost, so log them and raise them formally before that window closes. The uneven cooling is usually a commissioning and balancing item rather than a fault: as the office fills with people and equipment the system needs balancing across the rooms, which is a normal post-occupancy adjustment. Beyond the defects period, doors, seals, finishes and AC balance become routine maintenance to keep the fit-out looking and working as handed over. So the move is to write the list now, split it into defects (contractor closes) versus maintenance (ongoing), and get the AC balanced. A team that handles fit-out and aftercare across Business Bay towers will know what these buildings typically throw up and what the contractor should still be covering. Logging it early, while you are inside the defects window, is what saves you paying for things that should be closed for free.