What indiepanda said, always double lock your door. Also consider changing the 'yale' lock to a bigger type 'yale' lock like an 'Era' lock that are not as easy to kick in. Burglers got in once (another house) by taking the glass out from the outside so had shutters fitted and they tried to get in again not realising the shutters were there. Windows and doors that are beaded from the outside are not that secure and i asked the company why they do this having the guarantee from previous owners, their answer was so that fire brigade can get in if they must. What a load of bollox i thought, another company said it's a cheaper way of making the product. I wonder if somebody from a window/door company reading this can give an answer to this.