FenTiger

Peter_in_Hungary

If the shutters are of the type that are contained within a box over the window that is accessible via board on the inside - get rid of them as soon as possible. You can't imagine a worse cold bridge and heat loss if you tried. My advice would be to remove the shutter, seal up the slot that the shutter slides down, fill the cavity with insulation (either glass or mineral wool) and replace the board sealing it with mastic as you do so.

FenTiger

So you mean have no window shutters? These are needed because three sides face east, south and west.

Peter_in_Hungary

No I don't mean have no shutters, just that if the ones you have are the ones I described they are a thermal disaster and you really can't afford to keep them (If you are going to change the windows and the shutters are in bad repair then sort both together).
If you are using shutters to mitigate the effects of the summer sun then shutters on the east and west are not so important and internal roller blinds will probably suffice. For the south shutters can be more effective than internal blinds. You can get electrically operated roller shutters either with switch control or remote control that go on the outside of the window and they avoid the cold bridge, air leaks and heat loss of the shutters I describe.

FenTiger

Ah, okay, understand what you mean.
What sort of price difference am I looking at for motorised shutters?

Peter_in_Hungary

Last time I saw they were about 60,000 huf plus fitting but much depends upon size and type