Appliance Engineer Needed

[BlueOrchid]

Hello

The buttons operating the clock on our range master oven have stopped working (unfortunately as the oven is linked to the clock through a timer it means the oven also isn't working). The gas works and the stove and the grill, so I think if I could just get the clock fixed it would all be fine. I saw on Amazon you can buy new buttons and even a new clock - but I would need an appliance engineer to fit it.

Does anyone please have a recommendation? My normal electrician can't do it.

Thanks