You could ask for people on here to count how many are in there copy of the yellow pages and post the number of window cleaners and the area
At least that figure will be accurate.
i dont think that would be accurate ewan id say only 40-50% advertise even less maybe
Of course it would be accurate, just wouldn’t be giving you the whole picture. At least it takes some of the guesswork out.
Ewan if its not giving you the whole picture how can it be accurate?
Matt