I recently moved into a different home. Several of the kitchen cabinet doors had broken Blum hinges. I searched the net and found that US Cabinet Hardware had the hinges I needed. I contacted them through eMail and they informed me that Blum had a lifetime warranty on their hinges and they gave me the website address.
I contacted Blum through email and all they wanted was for me to send them one broken hinge and how many I needed.
They sent me 18 new hinges and the cost was O.
Needless to say---If I ever need cabinet hardware it will be Blum Products bought from US Cabinet Hardware.