Had our block paving put down in 2002. No problem at all with that.
Over the years, slowly, weeds started popping up. I'd put down weedkiller and pull the rest up.
Last year, had a knock on the door, and a jobbing tradesperson who was pressure cleaning a drive a few doors down offered to clean ours and get all the weeds out and re-sand the cracks.
Normally I'd have said no thanks, but given I could see them working, and the finished results, I gave it a punt.
All seemed OK. Sure enough, weeds were blasted out, and they re-sanded and it all looked lovely.
That was last year. Currently I think I must be growing enough weeds to win an award of some sort. Seriously - they are *everywhere* popping up through the cracks ...
1) Is this something to do with the cleaning ?| 2) If so does it mean something was missed ? 3) How to best stop it for future ?