In this test, the child’s DNA profile is compared with the DNA profiles of the father’s parents. This is important—the grandparents must be the on the dad’s side of the family (paternal side). Since a child inherits half of his/her DNA from their mother (maternal side) and half from their father, the DNA passed down from the grandparents to the father would be passed to the child.

The child’s mother is encouraged to participate in the testing. Her DNA helps to expedite analysis; motherless grandparent DNA tests take longer to complete because of the extended analysis required.

  • There are occasions where only one grandparent is available. We call this ‘Single Grandparent’ testing, and we can help you if this is the only option! Ask about this option when calling.

Grandparent DNA testing is available for Legal establishment of relationships, where we provide a legal document that can be used in court.

Please call 1-888-571-2220 to discuss grandparent DNA testing, our experts are more than happy to help you understand this testing option.

Legally Binding Grandparentage Test

PRICES Starting at $495


If you need grandparentage dna test results that can be used as a legal document, then a Legally Binding Grandparentage DNA Test must be performed. Listed below are some common legal reasons that this test is used for:

  • Child Support
  • Birth Certificate
  • Court Order
  • Child Custody
  • Tax Forms
  • Adoption
  • Immigration
  • Will/Estate
  • Military Benefits
  • Other Legal Reasons

A legal grandparentage test requires that all tested parties have their DNA samples collected at one of our certified facilities. Here's how to get started:

STEP 1: Give us a call at 1-888-571-2220. Or, choose which location from LOCATIONS above and schedule online!

STEP 32 Once we have collected your samples they will be mailed overnight directly to our laboratory for testing. The turnaround time for your test results is about 5 business days.

STEP 3: We will contact you immediately by phone with your test results. The original, notarized documents will then be mailed to the address you indicated on your paperwork at the time of your appointment. We can also e-mail your results in addition to mailing them. 

At Home Grandparentage Testing

If you do not need a DNA test for a legal matter — but just need a grandparent test strictly for your own knowledge — you have the option of purchasing a Home DNA Test. The tested parties collect their own DNA samples and mail them to our laboratory (we send prepaid overnight return shipping). When you call to place an order or order online, we will send you a DNA kit within one business day and explain the step-by-step completion process. Before ordering a home test, please consider the legal test if you believe the results will ever be used beyond personal knowledge — this way, you won't have to purchase another test in the future.

What makes us different from other at-home tests on the market:

  • We use the exact same laboratory procedures on our home test as we do our legally binding test
  • We Priority Mail the kit to you
  • We include prepaid overnight UPS packaging to return your samples to our lab

NOTE: We can also use cut fingernails, q-tips, etc. for an additional charge. Call us at 888-571-2220 for more details.


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