cheers for the advise so far lads 
Will look into triggers and taps at some stage in the week.
The 2 canvassers are excellent and worth their weight in gold!!! They can talk the talk, have loads door to door experience, can really sell the wfp benefits etc and the most important thing I told them to say is about booking them in for a monthly clean regardless of weather we will be there, as we offer a professional service and will be on time everytime and at anytime they not happy we clean it free...
This seems to be working for now anyway see how it goes
oh benny benny benny

i dont wana be negetive but i dont want you to get stung not cos you are getting ripped off but you must understand that each and every person you clean is a mistery its such a numbers game. as long as you wasnt guaranteed anything and you understand its a total risk then thats fine by both parties.
you have to be carefull mate or you could fall into a trap like many do!
no one is going to make another person rich.
if they are selling the benifits too much and gaining customers in that manner it means the customer becomes so curious that they just have to see the pole in action,and many one offs happen this way once they see it its a pat on the back cheers for that mate,
or the other one is "talking the talk" what the customer is buying here is them not you or your services... they are charming them at the door this means the customer wants to do them a favour..once these said yes everything what is told to them goes in one ear and out the other.
when you actually turn up and start cleaning then take a score off em after what they see as "sparying some water on the windows", they go hmmmm ok.... you say see you next month they say yeaaa right , then they will not tell you that they wana cancel but they already did.
if i could have done one thing different when i started hiring canvassers i wish i just took a very small amount of work waited till 2nd clean then choose my options.
i know you wana boost yourself and progress and its frustrating but i would be very carefull and wait till 2nd cleans dont over spend or spend an amount you can afford to lose.
its till you at least get that 2nd clean out the way when you find out where you stand canvassing does work but dont get carried away !