Hello, nice to find you in,
My name is ........ from GQC Window Cleaning, and we are looking for new customers in this area, and I was wonderimg if you'd like to have your windows cleaned on a regular basis.
If they say yes, ask them if it's okay to have a look at the property, then knock again and give them the price.
Something a long those lines.
AND SMILE, that's the most important thing, even if they say no, or are rude.
And always wear your ID badge with photo, just make one on the PC.
Well shaven, properly dressed, white t-shirt and good jeans will do, don't have to wear a tie.
Hair sorted, no chewing gum, and no hands in your pocket.
Carry a leather folder, with new customer form ready to fill in, on the other side, your cards and leaflets, I've had many people say how professional I look, and really something else. They were very impressed.
That's the way to do it, do all those points, not just one, and it will all come together. Be polite, respect peoples property. No spitting on the ground lol.