gugs4eva

Cheers guys for your advice.

I'm a new landlord, the tennats have move out last week, but during their 6 months rent they have lost the keys at least 3 times. everytime i have kindly given them my key for them to make a copy. but during the last few week they have been a nightmare, and i am bit concrened for the security of my house. can i change the lock and charge them from their deposit?