Notice from the Met Police:
Dear resident,
We have been advised of persons going door to door offering various home services.
We would like to advise all residents to be aware of who is at the door before they open it. Use a door chain and your spy-hole before doing so.
It is usually preferable to employ a company you have found yourself and to check their credentials before parting with any money whatsoever. If you are concerned about anyone offering services please call trading standards on 0208 937 5555 or www.tradingstandards.gov.uk/brent&harrow.
If you see any suspicious activity please call 101. If you want to give anonymous information to police please call Crimestoppers on 0800 555 111.