If I get a cancelation or get done before 6 I canvace and use brochures at the same time, what I do is knock doors near where I am introduce myself etc give then the brochure, and ask then if they would like a qoute.
I got about £30 worth tonight in about 40 minutes, I booked them in later when I had a gap, this get the best way of accuring customers, and 5.15 to 6pm is a good time to catch people in, go early they may still be in bed or not decent. Although there are normally have there tea, an appolgetic attidtute go along way there.
Flyer alone as people have said dont go very far, most people dont take the time to read them, but if you are there, and giving them a price they wont put it off or forget, just ask them straight "Would you be instrested in a qoute".
This is just my opinion by a few point on flyers.
Pictures say more than words.
Promise only what you can garentee to every customer, excellent service, friendly, trustworthy etc
Dont qoute prices, you qoute the cost of a small flat you'll get every semi and detatched looking for there's for the same price, and your qoutes wont get any where.
Try puting in customer, comments - just ask a few of your long standing customer to fill out a feedback Q and A while you do there windows, but make sure you say on the Q&A that some comments may be used in advertising material.
They allready have an idea of a window cleaner, so try to garentee they will be satasfied, try to think about customers pet hates about window cleaners, never on time, come by when they want, end up owing them a fortune, no seen them for months e.t.c. ensure them that they wont get that kind of service from you:-
e.g.
we will alway come by the day we say, if we cant we will call you(if thats something you do, I dont know)
we wipe done the sills
you can call us and rearrange if the day doesn't suit
also say what you do over and above your compeditors
e.g.
licence and isured
beter equipement
cleaning solutions used and why they are better
maybe why window cleaners are better that doing them on your own
buffing leaves static charges, dirting them quicker, and proffessional window cleaners prevent this by squegee'ing of the water, rather the buffing
but again, they probably wont read past the first page, so make sure every line reals them in - possitive, possitive and more possitive.
good luck pal
gerard