Why one price never fits: the anatomy of the AED 200–1500 spread
At the top of the range are jobs that quietly become two trades in one. A motorised curtain track needs a power point behind the pelmet, which means an electrician before the curtain fitter. A wired doorbell on a villa gate fifty metres from the router needs cabling or a wifi bridge before the camera goes up. A smart thermostat on a ducted AC system means opening the existing thermostat, identifying the wiring standard, and sometimes discovering the system is not compatible at all. Each of these adds labour hours, materials and occasionally a second visit.
The single most useful mental model: you are not paying for the device to be attached to the wall. You are paying for power, connectivity and permission to be sorted out around it. When a quote looks surprisingly high, one of those three is usually the reason. When it looks suspiciously low, one of them has usually been ignored and will surface later as an extra charge.