the trick with flyering estates is that you have to keep at it like drop 8+ times in the year - people will go for anyone until the realise their window cleaner has gone AWOL.
As they keep seeing your flyer then get the idea you are regular. People also get flyer blindness, and just bin flyers without even looking at them.
A lot of people just forget to call, so get reminded to call when you flyer again - i do have one customer who kept forgetting even thou i dropped 6 flyers!! It was only when i saw them washing their car one Saturday afternoon we got chatting!
So if you can - go door knocking! If your too busy then get someone to do it for you.
If your like me, and dont like to door knock and prefer to flyer, then stick with that. But it will be a lot slower intake - although more expensive on flyers.
However, I have found in my experience that the most reliable customers i have are all by flyering, because they have made the effort to actually phone and arrange it - the ones i door knocked have been un reliable and just "go with it" perhaps cos i do next door or something.
Oh and BTW i have never said go in low and put prices up. Someone has obviously mis-read my original post :