When you have lost your house keys, the only option which might come in your mind would be to install new locks before someone tries to break into your house. The locksmith industry has come up with a better house re-keying solution. Lewis Lock & Safe Locksmith Philadelphia PA can help you save plenty of money. We are providing re-keying service for affordable charges. What happens with the house re-keying service? The old keys become waste material which is of no use. It happens after we have altered the lock mechanism. The new keys are provided by us.