Why do i get the feeling we're talking about different things, i mean the lightwave sockets and switches that replace standard sockets and switches so need wiring in! i assume now that you are talking about the plug in gear?
I'm talking about their basic gear. You are right, they do make retrofit sockets and switches. The basic gear is either wireless receiver lamps, blutac on the wall switches or plug in dimmer sockets for lamps. Like I said, I don't particularly like the stuff but it does serve a purpose and I would recommend it as a DIY solution to a customer, but that's it. If I was asked about the retrofit stuff I'd still recommend the plug in stuff as I can't see a point to the retrofit sockets unless you want to turn your TV on or boil the kettle whilst on holiday?? Still, if someone asked for me to install the sockets regardless of my recommendations then yeah, I guess I would, I just can't see it happening unless I actively sell it to them.
I don't wanna sound like I'm belittleing your business because I'm not, just offering my opinion on the gear that's all. I apologise if I've offended you.
There are people out there that sell Lightwave as a genuine and full on home automation product (not that I'm accusing you of being one of those people). This is something that does annoy me because it simply isn't, it's a basic product that delivers a basic solution.