Traders Knocking door To door

Good afternoon all . Just to let you know we have had a report of tradesmen knocking on doors for business. Please in your best attempts to use a workman that are recommended to you or a tradesmen you have used before. Please let family and friends know about this. We have had in the past where tradesmen have knocked on doors of elderly persons and haven't conducted the best work on property and charging a great deal for work of a low standard.