I knock any door regardless of whatever sign they have. I'm not selling anything just making people aware of the service I provide.
I asked a customer who happens to be a Kleeneeze manager this only yesterday. He said he knocks every door too!!
Its every individuals choice of whether they" knock" or not!
Around here Kleeneeze post the magazine and have a date for it to be left outside for collection......
Cold calling free zones are set up to protect the old and vulnerable and whilst we know we are not "rogues" they don't.
My Mother (80) was nearly caught out by unscrupulous "cold callers", distraction callers I think they call it, but she cottoned on pretty quick and told them where to go in no uncertain terms, the walking stick brandishing helped alot I believe......

On the serious side it was not the actual act of what these 2 had or were about to do it was the was the way it affected my mum afterwards.....afraid to go to bed, afraid to open the door, afraid to have doors and windows open during the day and so on.....
In her words, they were really smart looking and polite, then she noticed a further person trying to go down the side of her bungalow..... They were supposedly selling gardening services.
So IMO you should leave these areas alone, there is a valid reason for those signs being put up
