In the office, Wemmick is all business. However, we find out that Wemmick's home, a place called Walworth, is quite literally his castle. We also discover, for he tells this to Pip, that he keeps his office self and his home self completely separate:

My Walworth sentiments must be taken at Walworth; none but my official sentiments can be taken in this office.

Walworth is a tiny castle with a tiny moat and drawbridge, and over it flies the Union Jack, the flag of Great Britain. Within this castle, Pip finds the warm, lovable, whimsical, and family oriented Wemmick, who takes good care of his Aged Parent and has a woman friend named Miss Skiffen. Wemmick's home is a place of good cheer, and here Pip is able to conduct the business that will allow him to finance Herbert without Herbert knowing where the money comes from.

Dickens shows, albeit in an exaggerated way through Wemmick, the Victorian sense of difference between home and workplace.

Pip discovers that Wemmick has a human side which he takes care to hide when he is at work in Mr. Jaggers' office in London. Wemmick has an aged parent to whom he devotes a great deal of attention and affection. He also has an eccentric side, as shown in his strange little castle with a moat that anyone could step across. Wemmick also has a lady friend whom he will eventually marry. So Wemmick is essentially a kindly and generous man who will always give Pip good advice and will ultimtely be of great service to him. Dickens loved to create eccentric characters such as Wemmick and his father. Dickens also showed special sympathy for "little people." He dramatized Wemmick's kindly nature in order to justify the special pains he would take to help Pip in crisis.