Electric cooker fitting cost and requirements.

You need to assess if the cable has been taken from the switch and down below the counter top to allow for a cooker to be connected. Carefully open up the switch, you should have the supply cable, see if the other cable is there? Have you pulled out the existing gas cooker? Is there a breaker in the board for the electric cooker? (often on the top row, possibly 32A)

If no cable has been taken from the switch the wall will need to be chased if it is a solid wall, if it is plaster board it might be easier to run the cable.

The cost will depend on how much of the work is complete and how straight forward the job is. Could be anything from €100 for a basic connection of a cooker, to €300 if additional works needed.

Sounds like there is power going to the switch anyway. When you pull out the gas cooker are there any electrical cables behind it or an electrical box on the wall?

If a cable does need to be chased into the wall most electricians would do a rough fill and say to get a plaster if you want a perfect finished. If you are any way hand you would probably be able to fill the wall and sand/paint it. The wall might not need to be chased, you would need to assess if it is a solid wall or not.

A gas cooker would typically have higher temperatures on the hob than an electric cooker. No the wall does not need to be tiled, but you are probably best to put something behind that is easily cleaned. An easy thing to do is get some coloured glass (600mm wide) and TEK7 it to the wall behind the cooker so it can be easily cleaned.

Personally I would not recommend going for an "all in one" electric cooker, if you could accommodate a separate oven and hob, as when one breaks you don't need to replace both. The downside is that you would probably need to replace the counter top with a cut out for the new hob. If you can consider raising the oven up higher too, much safer and easier.

I've had the same debate myself regarding replacing appliances for my mother. I also found the all in one appliances to be quite expensive.

I've raised up ovens for two people and both love them, would never go back. This also leaves scope to replaced the old low down oven with 3 drawers, utensils + 2 pot drawers, perfect for when cooking.