I had a fairly similiar one recently, I was out knocking, and asked this guy if he had a regular window-cleaner etc, he didn't bt seemed quite keen to have one. I gave him a price, he said he'd speak to the missus and they'd get back to me. Anyway, a week later I was passing the place so stopped and popped in to see if they'd had a chance to chat about it.
She came to the door and I explained who I was. She also seemed rather keen. So, we got into talk about frequency of visiting, payment regime etc. Then she said she didn't want them cleaned as regularly as every 5 or 6 weeks, so I asked her how ften she wanted them done. She every 4 months, once in August, once in December and once in April.
Oh really !!
methinks.
Sometimes you just get the feeling theyre not kosher.
The sort where you phone 'em up the day before to ensure access and they say 'Oh, not today, ta'
Matt