ELLIS´s Comfortprovider way of key holding is the ultimate way to trust a key to somebody. ELLIS Comfortprovider stores your key in a safe with a code. The only people that have access to your key are the ELLIS Comfortprovider staff or the people who you allow the use of your key. Each time we leave your key with somebody this will be registered in our database and each user of the key has to sign for this. If you don´t want anybody to use your keys apart from the ELLIS Comfortprovider staff, we will go and open the door when needed. In these cases you will have to keep in mind that this of course will affect the price.