I was having major problems inserting the key into our home's front deadbolt lock and based on the reviews, called Altamonte Locksmith. When I explained that had pressure washed my home and might have accidentally gotten the lock wet, I was told to use Tri Flow to lubricate the lock in order to save me the $80 dollars for them to come and visit. I tried it and it worked! The honesty and helpfulness displayed by these guys is unbelievable. Those $80 they saved me will in turn earn them all my future locksmith jobs along with my word of mouth.