It depends on the length of your tenancy agreement. Each case is dealt with on an individual basis, so there is no standard answer, but typically:
For a student: 12 months.
For a working professional: 6 months or 12 months on request.
For periods longer than 12 months, you will need to renew your application by logging back in and clicking “renew” at the appropriate time. Renewals benefit from a 10% discount if requested before the end of the tenancy.
Please visit https://www.housinghand.co.uk/renew-uk-rent-guarantor-service/ for more information.