Grandparent DNA Testing: Legal & Home Kit Solutions

Grandparent DNA tests or Grandparent Relationship testing, allows the parent or parents of the alleged father to participate in DNA testing in order to prove paternity. In rare cases, grandparent testing may  be used to determine if the grandparent is the maternal grandparent to the child.  A Grandparent DNA test result will provide a statistical likelihood that the grandparent/grandchild relationship exists.

Grandparent testing can include one or both of the grandparents, but including both grandparents offers a stronger result. Also including the biological mother is always suggested in relationship testing. Adding the biological mother helps prevent inconclusive results. If the biological mother is not available, the test can still be performed.

Grandparent DNA Test provided by Test Me DNA.

How Grandparent DNA Testing Works

Order Grandparent Test

After deciding on a test, we will either send out a Home Grandparent DNA Test Kit or schedule an appointment for Grandparent DNA Testing at any of our 1000+ Testing Centers for DNA collection.

Collect Samples

DNA collection is painless and easy to perform. DNA collections are performed with non-invasive buccal swabs. The swabs are brushed lightly on the inside of each individual’s cheeks for around 10 seconds.

Get DNA Results

Results typically complete within 3-10 days after the laboratory receives all testing kits. Grandparent DNA test results are then provided over the phone and email. Mailed copies can be sent upon request.

Legal Grandparent DNA Test vs Grandparent DNA Home Test Kit

Test Me DNA can provide you with Court Admissible or Peace of Mind results for grandparent DNA testing. Whether your specific situation requires you to choose the Legal Documentation or you are just doing this test for personal knowledge, rest assured that our AABB accredited lab will process all grandparent tests exactly the same. There is absolutely no change in the accuracy or precision of the final results. The only difference comes in the Notarized results, along with a Chain of Custody that is provided with the legal grandparent test.

Grandparent DNA Home Testing Kit

  • Discreet shipping, free shipping both ways

  • Easy to use kit with detailed instructions

  • Fast results: 3-10 business days after returning the kit

  • Results are private and confidential

  • One low price includes kit & results

Order Now

Order the Grandparent Home DNA Testing Kit today.

The easy to use form will get the Grandparent testing process started.

Orders submitted by 2PM CST Monday-Friday will be shipped same day.

Legal Grandparent DNA Testing

  • Same Day Appointments in most areas

  • Painless DNA collection

  • Fast results: 3-10 business days

  • Results are private and confidential

  • One low price includes testing & legal DNA results


Call to order a Legal DNA Grandparent DNA Test. In a simple phone call, our DNA specialists will walk you through how the DNA testing works and get you scheduled.

Appointments are Monday-Friday, and can usually be scheduled for the same day.

Grand-Paternity DNA Testing FAQ

A grandparent paternity test is a DNA test with grandparents to determine if their son is the father to the target child.

If a father or alleged father is not willing or not available to test, the grandparent DNA test is the next best thing. The Grandparent DNA test is used frequently for social security survivor benefits.

A father receives all of his DNA from his parents. So any DNA he passed along to his child would have come from either the possible grandmother or the possible grandfather. Therefore, between the two possible grandparents testing with the grandchild’s DNA, they would match in all the same places that a father and child would match.

Yes. If you are needing a DNA test for death benefits, then it will need to be the legal DNA test. If the grandparents are still living and willing to do the DNA test, they would be great candidates if the father is deceased.

Yes! Grandparent home tests are a very popular choice. Home DNA testing kits are available for all of our relationship DNA tests, including DNA tests with a grandparent.

For most grandparent tests, the samples are collected using sterile buccal swabs. These sterile cotton tip swabs are rubbed on the inside of the cheek collecting the epithelial cells. Buccal swab collections are completely painless and can be used on adults, children as well as babies. Due to the fact that the DNA found in our cheek cells is the same DNA found in all of our cells in our body, the results from this test would be exactly the same as if performing the test using a blood sample or other “special” samples.

Legal grandparent tests must be collected at one of our many collection sites. This allows the collection to be taken by a professional neutral third party. They will also take a thumbprint and a photo at the time of collection, providing proof of who was collected.

Both grandparents are suggested in most instances. However, there are certain situations that would not require both grandparents testing. To go over the best options for your situation, you may want to call us to discuss.

If the child at question is a male, it is best to do a DNA test with the Grandfather. When testing 2 males for a relationship DNA test, they have the extra advantage of including Y chromosome testing, if it is necessary. Y chromosomes are an exact match down the male lineage.

The price of a grandparent test is dependent on a few factors. How many people are testing? Do you need the test for legal purposes or just personal knowledge?

The cost of a legal grandparent DNA test including 1 possible grandparent and 1 child is $349. Any additional person is $125.

The cost of a home grandparent DNA test including 1 possible grandparent and 1 child is $179. Any additional person is $69.

Grandparent DNA results provided by our AABB and ISO 17025 accredited laboratory are deemed, useable for life. These accreditations confirm that the highest possible standards and competence is being upheld by the laboratory. US government agencies, or state institutions require that your grandparent DNA testing be preformed by a laboratory with an AABB accreditation. Courts throughout the United States regard our Legal DNA results as absolute proof of the relationship in question.
The AABB standards maintains that a legal grandparent test must have a strict chain of custody to be valid in any legal matter and admissible in court. An unbiased medical professional must perform the sample collection, and willing participants must provide legal identification as well as sign acknowledgement of their consent. As part of the procedure, those signatures of consent, fingerprint and photo of the participants, and any other identifying information will be provided on the chain of custody.
Our DNA testing laboratory trains all technicians to follow these procedures to ensure that results may be used for any legal matter. Our testing laboratory is composed by experienced PhD geneticists who administer the testing process in accordance to the AABB and ISO accreditation standards. This ensures that the most up to date testing methods and technology are being used to complete your test.

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