Can the guarantee be extended?

This depends on the type of guarantee linked to the tenancy.

Ongoing guarantees remain valid for as long as the tenancy continues and normally do not need to be extended.

Fixed-term guarantees are only valid for the period stated in the guarantee certificate. If the tenancy continues after the expiry date, the guarantee must be extended or replaced with a new guarantee.

If you are unsure which type of guarantee applies to your tenancy, you can find this information in the guarantee certificate or contact support.