Contact Key4: phone & hotline


We are there for you

Do you have questions about our mortgages or about key4?

Call us – we will be happy to help you.

Telephone advice

Our team is there for you between 8 a.m. and 6 p.m. from Monday to Friday.

0800 440058

No time?

No problem. We’ll be happy to call you back whenever it suits you.

Arrange a callback

Or write to us – and we’ll get back to you as soon as possible.


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