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Single Grandparent DNA Test - No lab fee upfront

Single Grandparent DNA Test - No lab fee upfront

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The DNA test kit contains the correct number of mouth swabs required. The cost of the test analysis is based on the combination of people tested.

Refunds will not be issued for inconclusive results. Please click here to view our disclaimer.

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What is a Single Grandparent DNA Test?

The Single Grandparent test can be used as an indirect way of establishing paternity. For example, in the father's absence, we can use a DNA sample from his biological parent to establish paternity.

You should only use the Single Grandparent DNA test if it is not possible to get a DNA sample from the potential father. If the potential father is available, then you should consider a Paternity DNA test. Paternity DNA tests are available from DNA Clinics and

If both grandparents are available for testing, you should consider the Duo Grandparent DNA test, as this test is less likely to produce an inconclusive result.


We recommend including a DNA sample from the child’s biological mother, as this will reduce the chance of an inconclusive result. There will be no additional charge to include the mothers DNA sample, but fees will apply for any additional test participants. Please contact us if you require additional mouth swabs to include further test participants or would like to discuss which option best suits your circumstances.

  • Very happy with the service, very quick and efficient. Advisors very helpful and results very quick.


  • The staff were absolutely amazing as when I was booking appointment I was unsure about filling form online and they were so helpful and reassuring and nothing was too much trouble, would highly recommend this company.

    Mandy T

  • I am very satisfied with the service I was provided 10 out of 10.

    Dean M

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Do you need a legal DNA test?

Unfortunately, DNA self-collection kits cannot be used for any legal purpose. You must book an appointment for a legal DNA test at one of our DNA Clinics.

You can search for a DNA clinic near you by clicking below.