Legal Grandparent DNA Testing $245

Need Legal Grandparent Testing? Buy A Grandparent Test At!



Our DNA testing lab performs 3 of 4 grandparent tests in the US. Seen on TV shows like Maury®, Steve Wilkos® & Paternity Court®, Get Accurate Answers!

The Most Trusted DNA Testing Lab In USA




Grandparent testing lab is AABB accredited. Our grandparent test analyzes more markers, uses the most advanced processes, and produces 100% accurate accredited results.

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AABB Accreditations




We offer FREE USPS rush delivery of grandparent kits. And, paternity results are ready in 2-days. Other labs want you to prepare your own kit, but Don't Risk Compromised DNA.

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We provide the most accurate grandparent testing in the USA. Don’t risk buying your DNA test from an entity that sends them to the lowest bidder for testing. Our lab performs all our own tests.

The Only Thing Cheap About Our DNA Testing Is The Price

High Quality Very Accurate Legal Grandparent DNA Testing

Legal grandparent DNA testing performs a DNA comparison between an alleged grandmother or grandfather, and grandchild which is admissible in a court of law in all 50 states. Legal grandparent DNA testing will determine a statistical probability of the test participants sharing a biological relationship as that of grandparent/grandchild. Legal grandparent DNA testing may be done with only a grandparent and child; however, it is always highly recommended to add the mother, or known parent of the child, if at all possible.  Doing so will increase the conclusiveness of the test.

How To Increase The Accuracy Of Your Grandparent DNA Test

Each person inherits half of their DNA from their mother and the other half from their father. When the known parent, such as the child’s mother, participates in the grandparent DNA test, they are compared to their child and the DNA which was inherited from that parent can be eliminated from the testing equation. This isolates the DNA from the parent in question, commonly the father, which is then compared to his parent, the grandparent, giving a more conclusive result. If you are not able to add the mother to the test, we recommend choosing the option for testing additional markers as needed. With this option, extra markers will be tested as needed until a conclusive result is reached, or until all possible markers have been tested.

AABB Chain Of Custody Requirements

The AABB guidelines stipulate that for a legally binding or court admissible test must have valid chain of custody.  Simply put, chain of custody refers to the DNA collection in the presence of a medical professional and the legal identification of the test participants.  With every legal grandparent  DNA testing, the sample collection must be performed by a neutral medical professional who has nothing to gain or lose from the result of the test. You may not choose the collector for your legal DNA test unless you use a doctor's office. Don't be swayed by other labs saying your neighbor, non related friend, or even lawyer may act as a witness. Our lab offers over 5,000 network locations where your DNA samples can be collected.

Why We Stand Above The Others

Smaller companies who advertise cheap DNA testing allow participants to choose their own collector. Surprisingly, they even mail the collection kit right to the client. Please beware - this practice does not follow AABB chain of custody requirements. Their cheap grandparent DNA testing can end up being very costly to your family down the road.

It's a direct violation of AABB requirements for anyone associated with the legal grandparent test to be in the possession of the collection kit. This includes any test participant, family members or friends. When collection swabs have been in the possession of someone with an interest in the test result, there could easily be suspicion of tampering. For this reason, we never ship legal DNA collection kit to anyone other than a medical clinic.

Secondly, a legally binding grandparent test must be collected by a medical or clinic professional. With, you can use your doctor for the DNA collection, or opt for professional collection service at one of our over 3,500 clinic locations. Again, having someone known to the test participant act as a collector, or "witness" the DNA collection, does not meet AABB standards. A collection by a neighbor, friend or family member can easily be discredited; causing you to have to pay for another test.

A legal test conducted outside of the chain of custody is easily contested and disputed in court; and more importantly will not stand up as evidence.

In contrast, we don't bend guidelines and risk injuring your case. Our lab follows every AABB requirement to help ensure your result stands up in any legal matter facing your family. We understand the need for a legal DNA test is usually accompanied by a difficult situation. With that in mind, we handle every case with care and confidentiality.

The Legal Grandparent DNA Testing Process

The legal grandparent DNA testing process is quite simple. When you place your order, you may choose to use our professional collection service (at one of our clinic locations) or have a test collection kit shipped free to your doctor's office.

If you opt to use your own doctor for the DNA collection, simply provide their address information when placing your order. We ship a legal DNA collection kit to them. We also provide a prepaid return mailer in the collection kit for their convenience. Please check with your doctor before you order to make sure they agree to provide this service.

Or if you prefer, choose our professional collection option. An agent will call to schedule your appointment at your convenience. We have over 5,000 clinic locations across the country to serve your collection needs.

After the collection, the samples and chain of custody documentation go directly to the lab. When received, we email you a confirmation email to let you know testing is underway. If you order email test results, we email a PDF document of your notarized test result as soon as testing is complete. A hard copy is mailed to the billing address on your order. Nothing is shipped to your home other than your test results.

DNA Collection

The collection process is very simple. DNA is collected through a cheek swab, also known as a buccal swab, which is painlessly rubbed against the inside of the cheek. Our lab conducts all of our grandparent DNA tests twice. For this reason we collect 4 swabs per person. As a general rule, be sure the mouth is clean before swabbing by rinsing with water. Test participants should refrain from drinking coffee or tea or smoking for 3-4 hours before the DNA collection.

In certain situations where a family member may be deceased, depending upon the details surrounding the case, tissue or blood samples from the medical examiner or coroner’s office may be available. Their office should be able to advise you of what type of sample is available. Once you have established this information, call us to speak with an experienced Case Manager to discuss your situation and forensic processing.

Informational Grandparent DNA Testing And Other Test Services

Many times, families need these results to prove grand parentage in court, child custody or support situations, for insurance purposes, estates, wills, to change a name or social security benefits. While our legal grandparent test provides a court admissible certificate to prove your relationship, you may find you only need to verify the relationship for your own peace of mind or curiosity. If that is the case, our informational grandparent test may be best. Whether you chose a legally binding or informational grandparent test, rest assured that you are in good hands with PaternityUSA.  Since our lab is AABB accredited, both legal and informational DNA test samples are processed in the same manner once the samples are in the lab. The difference lies in the collection method - chain of custody.

We offer other relationship tests may also help establish paternity or maternity, such as a Siblingship test, an Avuncular Aunt/Uncle test , a Y-STR analysis with 2 or more tested males, and mtDNA testing for indirectly confirming maternity.

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Choose the type of relationship that you need DNA answers for, and who is available to do the testing.


Decide if you need answers for just personal knowledge or if you need answers for court or other legal matter.


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