I had shutters installed in my last (Edwardian) house (picture attached), and I am now about to install them in my new 1930's house, both in a West London suburb. These were full length shutters with top and bottom separately controlled. This time I'm getting tier on tier shutters, so I can open the top windows without having to open the full shutter door (rookie mistake from last time).
I love shutters as I hate curtains (I associate them with a much older generation), and blinds (I dislike the faff and untidy look of the controls hanging down the sides).
Shutters give me the privacy I like, with the darkness I like, though I don't think they are fully blackout. I'm also not a trendy person, so not fussed whether they are in fashion or not.
I had them installed by a company called Clement Browne in Autumn 2020, and paid about £4k for 4 windows (2 big bays upstairs and downstairs, plus 1 side window upstairs all at the front of the house, and 1 picture window overlooking the side return. When I called the same company recently to come and measure up at my new house, they said they had no fitters in my area, and didn't know when they would, so it sounds like something odd is going on there.
I've recently had quotes for proper wooden shutters from Thomas Sanderson and a local company ranging from £5.5k to £3.4k for 3 windows, this time for 2 large bays and 1 box room at the front. Prices have definitely gone up since last time.
It's also worth bearing in mind the lead times. All the companies I've spoken to said that as the shutters are bespoke and shipped from China on a slow boat, which takes 12-16 weeks, not including any unforeseen delays. Worth thinking about if you need window coverings quickly. I don't mind as I'm prepared to wait for the clean look I love at the end.