I choose Alpha Ventilatie to install a new ventilation system and cleaning maintenance. During the visit, the technician explained how the system works and he was knowledgeable. The appointment was rescheduled 4 times before the technician was available, this was inconvenient, but when they came it worked out.
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Specialist professionals
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I suggest better organizing the appointments, I had the impression that they accepted a high work demand without having the means/resources to support it, given that my appointment was canceled multiple times (sometimes with short notice)