Be positive. Don't give them the chance to say 'no' before you've got your point across.
Knock on the door.
Stand slightly sideways so you aren't staring straight at them when they open the door. As the door opens, wait till you can see them out of the corner of your eye then turn to face them.
"Hello, my name is ........... and I put one of these through your door a couple of days ago." (Show them the leaflet) "I'd like to take just a couple of minutes of your time to give you our fixed written quotation showing you what we do and why our service is such good value for money. The quote is free and there's absolutely no obligation Do you have a conservatory?"
(Answer - yes) "OK, could I see it so I can put it in the quote?"
(Answer - no) "Ok, could I have a quick look at the back so I can give you the quote?
By now they'll either say 'No thank you' in which case thank them and move on, but it's much more likely they'll feel vaguely as though they ought to let you look around - try to get them to walk around with you so you can talk about how good your service is.
Talk up the service, repeat that you clean everything - frames, sills, doors, etc etc and conservatory gutters, all as standard every time, and then say "And we do all that, every 4 weeks for just £XX"
Wait for the reaction.
If it's favourable (i.e. they don't say 'No, thank you!!') keep talking, tell them about your guarantee (quality of work, rain, whatever) How the system will keep everything looking like new. How there are no holes in the lawn/flowerbeds from ladder feet......
"Would you like me to book you in for our next visit in this road?"
If they're still not ready to say yes, tell them that if it would make it better for them you could do it on an 'every other month' basis. Not the best option, but if they go for it it's still another job.
PRACTICE THE PATTER BEFORE YOU START - DO IT IN FRONT OF A MIRROR TILL YOU CAN DELIVER IT FLUENTLY.
This time next year you'll be a millionaire
