So at beginning of November I had Sub Cool out to install a ducted system in the loft for my upstairs bedrooms, along with a wall mounted unit in my lounge on one system and then a separate wall mounted unit on my wife's outdoor office at the bottom of the garden. All Mitsubishi Electric, with a "dumb" unit in the outside office and "Smart" connected for the upstairs and lounge.
Three guys came out and were really good throughout, piling through the outdoor unit in one morning by one of them as my wife was in the office that day, whilst 2 others worked in the house mainly getting the loft unit and ducting in place on day one. Second day was then spent putting the outdoor pipework together and mounting the wall unit in the lounge. The system was pressure tested overnight on the second night and then they came back Wednesday morning to finalise the install and sign everything off.
Overall the disruption to myself and my wife was minimal despite us both being at home. All installs were really neat with no internal cable runs for electrics instead going outside which you can just about see in the photo below. There was one area I wasn't happy with and that was the pipework that went over my Porch (see below), but they came back out on Tuesday in the horrific weather and tidied it all up to a much more satisfactory standard, I'll put a picture up shortly. Only other minor issue was they didn't put much effort into putting the loft lagging back in place so had to go and tidy that up, which with a shallow pitch roof and split ducting system in the way meant it was a good old crawl around!
I'll put up some pictures tomorrow. Overall Subcool are highly recommended, and they were about £2k less than the next cheapest quote too.