My Harmonn door was about 600 quid or so from the shop, and the opener another 200. Me and my dad fitted it in a day. By a happy coincidence, 800 quid is the figure Homeserve quoted to replace the original crappy door*, so that’s what the insurance company paid me 🙂
However that was only in one specific colour, finish and pattern. All the other lovely finish options pushed the price of the whole lot up to a grand or so, which I thought was weird. The finish we got was the fake wood grain (looks like painted wood). I wanted smooth and narrower slats but that was more for some reason, as was thicker insulation.
It’s an integral garage btw and the garage itself is way way warmer now.
* that the builders told me cost them 150 quid wholesale.