Emil,
I've been doing this for 15 years now, not as long as some but I have a few thousand customers on my database and 50% of them are high end customers in the Hertfordshire area and few in London, I done the Alltec fast track program about 12 years ago (some of you may knock it but most of you have copied parts of it, 100% guarantees etc). We advertised to the higher end people, saying if you want cheap carpet cleaning, brush the dirt of the surface we respectfully ask you to phone somebody else but if you want the most thorough cleaning please call. Why do people buy a Mercedes etc when a Ford will get you to the same place and is probably more comfortable. there are a lot of people out there willing to spend good money. why is John Lewis always so busy with middle class people (thousands of them). If you have a good website that looks professional you'll get good customers. Just ask the right questions when they phone, you can get an idea of what type of person they are. Just done 2 jobs today that came to over £600. That's my rant for the day.