Gentleman,
I really am amazed by the number of my fellow cleaners that have this 'fear/ aversion' to door knocking. If you actually analized the amount of effort, time and costs you employ leaflet dropping and correlate that to your hit ratios you really are selling yourselves short.
Think of it this way:
Your all denying yourself the most valuable chance to initiate new business. By that i mean the chance to make a good 1st impression.
Consider: How many leaflets do I(you) throw away every week. Out of the local newsapapers. mags, casual restuarant menus.
Then ask yourself why any potential customer would consider a name on a piece of paper over a friendly introduction of yourself and your business.
This is a service industry and the first rule of good service is the ability to communicate with your new and old clients.
So next time you get worried about a 'NO'. Reply with:
Well i do hope we may be of service to you in the future and in the meantime if you would like a no obligation quotation please feel free to contact me on this number - Handing Her/Him your (PRINTED) business card!!
Hey presto its a no now but when they want someone who they gonna call?
Friendly, professional, smart and organised YOU?
Or Jim from wash & go who stuffed a paper flyer through their door!
Answer on a postcard

Hope you give it a go chaps - Its not as daunting as you first think!!
Gary Hennell
Pinnacle Professional Cleaning Ltd