In Dubai, air conditioning is not a comfort, it is a vital organ. It is also where handover defects cost the most — because they cannot be seen, and because they show up in the first summer.
Why buyers miss this item
On handover day, the villa is cool. The system has been running for hours, often since the day before, with the blinds closed. Everything seems normal.
An air-conditioning defect cannot be spotted in an instant: it shows up at steady state, under load, and by comparing rooms with one another. That is exactly what a forty-minute visit does not allow.
The five defects we find most often
1. Balancing
The most frequent and the most underestimated. The system works, but the air is not distributed as it should be: one bedroom stays three degrees warmer than the others, a corridor is freezing, a corner room never reaches its set point.
It is measured by recording supply and room temperatures room by room, after the system has stabilised, and comparing them with the set point. An imbalance recorded before signing is fixed by rebalancing the network. Discovered in July, it is dealt with in a rush, with false ceilings taken down.
2. Condensate
An indoor unit produces water. That water has to go somewhere. Insufficient drain falls, poorly made traps and badly fitted trays are a classic cause of ceiling water damage — six months after handover, long after everyone considered the handover closed.
The check is simple: verify the falls, run a water test, inspect the trays and connections.
3. Access for maintenance
Not strictly a defect, yet it costs money for ten years. An indoor unit with no access hatch, a filter that cannot be reached without scaffolding, an outdoor unit placed against a wall with no clearance: every maintenance visit becomes a building job.
It has to be recorded at handover, because afterwards it can no longer be corrected at reasonable cost.
4. Insulation and wall penetrations
Poorly insulated pipework condenses. Wall penetrations that are not properly sealed let in hot air — and humidity with it. The result: lower performance, a rising bill and sometimes stains on the ceiling.
5. Controls
Thermostats swapped between two rooms, zones wrongly assigned, no programming, remote access not handed over: minor defects to fix on handover day, and tedious to get corrected afterwards.
The absentee owner
A villa left empty several months a year raises a particular problem. Switching the air conditioning off completely in such a humid climate exposes the villa to mould, warping of wood floors and joinery, and damage to leather and fabrics.
The sensible practice is to keep a high set point — around twenty-six to twenty-eight degrees — rather than shutting everything down, and to have someone visit regularly. This is precisely where a concierge service adds measurable value: the difference between a closed villa and a monitored one shows in the condition of the finishes after two years.
What to ask for before signing
- The network diagram and the zone assignments.
- The contractor’s balancing report, if there is one.
- The manufacturer warranties for the equipment, their duration and maintenance conditions.
- The access codes for the controls, including administrator access.
These four documents cost nothing to ask for on handover day. They become hard to obtain three months later.
