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Grandparent DNA Test

Grandparent DNA Test


100% Accurate – Results In 2 Days

What Is A DNA Grandparent Test?

Grandparent DNA testing is often used to prove paternity when the suspected father cannot, or will not, take a paternity test. In these situations at least one of the suspected father’s biological parents use their DNA to compare to a suspected grandchild. This testing can be used either for legal purposes, or more commonly, by using a home DNA grandparent test kit, to determine if their son is the biological father of a child, or children.

Biological parents equally contribute 50% of their DNA to each of their children. This mean the child’s genetic DNA profile will show one-half of their DNA coming from each biological parent. When that child becomes a parent, they in turn contribute half of their DNA to their child. What this shows is that we can know that 25% of the grandchild’s DNA comes from each grandparent, through their biological child.

Many times both grandparents, and even the child’s mother, will want to be included in a paternity test using grandparents. However, we also realize that there are many times, or reasons, that the other grandparent, or the mother, is not available for the grandparent testing. Using one grandparent for testing means that there is less genetic material to compare with the child. We have taken that into consideration when determining the best way to obtain the answer needed from this DNA test. We insist on using a minimum of 24 genetic markers for the testing, rather than a standard 16 marker test, to deliver the strongest result.

We mentioned prior that there are two categories of grandparent testing: legally admissible and private (at home) tests. The results you receive from our private home DNA testing will show the same results as our court admissible test, but does not include the legally necessary chain of custody proving the identity of each person testing. Adding the mother’s DNA sample is recommended on this type of genetic testing, if possible. This will allow us to eliminate her DNA contributed to the possible grandchild. If the mother’s sample is not available, or you do not wish to include it for privacy reasons, we can still do the testing, and will adjust our process for only a grandparent(s) and grandchild.

best grandparent dna test

How Much Does A Grandparent DNA Test Cost?

A DNA test may well be the most important test you will ever take. We are committed to providing the highest quality, and most accurate DNA testing, at the most affordable prices.

We know that some companies are advertising they offer cheap grandparent DNA test prices. We want to encourage you to be careful when considering these companies. Cheap DNA tests may have a lot of hidden or surprise costs (for example: charging an additional cost when you order for added markers if you might need them, or a very high cost for more than one DNA kit, etc.). A cheap DNA grandparent test will most likely cost you more when everything is done, and they often don’t have the resources and trustworthiness of established DNA testing companies like ours.

We don’t offer cheap DNA services. However, we do offer a very affordable grandparent DNA test. If fact we have not raised the price for our DNA testing in over five years, even though our costs have risen along with everything else. Our affordable prices have allowed us to process thousands of DNA samples every year for lawyers, physicians, adoption agencies, and private individuals.

Non-legal grandparent test prices are often offered at a cost of $200 to $500 for non-legal testing. We do not know of any reason for such a high cost for this testing to the consumer. It just doesn’t cost that much for the lab processing to do the testing to charge that much. All of our testing is done in our partner AABB accredited lab. We test the highest number of genetic markers, and we guaranteed the results are accurate. This is all done for a fraction of the cost of other labs. Every company needs to make a profit to keep the lights on, pay their staff, and cover expenses. Our company is no different. However we choose to make a small amount of profit on a lot of tests, and help more people learn the truth at a lower cost, rather than make a huge profit on just a few tests. This philosophy is part of our mission statement as a company.

Your choices are outlined in the fee schedule below:

Number of People Testing
One Grandparent, One Child – $139.00
One Grandparent, Mother, One Child – $139.00
Each Additional Grandparent – $100.00
Each Additional Child – $75.00
Non-standard Sample (per sample) – $100

home grandparent dna kit

How Accurate Is A Grandparent DNA Test?

A paternity test is called an “exclusionary” DNA test. What this means is that the result provides a yes or no answer to the question if a man is a biological father of a child. A Grandparent DNA test, since it does not test the father and child directly, has the results shown as a probability that the relationship exists. This probability is expressed on the DNA results report as a percentage. This percentage ranges from 0% to 99.99%+.

Testing for this type of biological relationship is based on the statistical probability that two or more people are related by bloodlines as grandparent and grandchild. The industry standard for testing is 16 alleles (aka genetic markers) in an attempt to arrive at a conclusion of whether a grandparent/grandchild relationship can be verified. The challenges and limitations with this standard is that when using so few genetic markers, it is very difficult to arrive at a conclusive result. This is because a grandparent only shares up to 25% of the same DNA with their suspected grandchild. All humanity shares 99.9% of the same DNA, which means that only .10% can be used to confirm or deny the relationship.

When only 16 markers are being considered, there is a very good possibility that an inconclusive result will be reported. Even worse, a false negative or false positive is also a potential outcome. We strongly believe that there are just not enough genetic DNA markers tested in a standard test to feel confident about the results.

This is why our DNA testing uses up to 50% more alleles than other companies. The DNA sample of the mother can be included at no additional charge. The results we provide to you, which shows the probability of that the grandparent and grandchild are biologically related, as stated on the report, is 100% accurate. The testing process that is used for our DNA samples is the exact sample process, and the same results, whether for a legal grandparent DNA test, or our at home grandparent DNA test.

Often, we are asked if the home test results can be used in court, since the results we show are the same. DNA test reports are unable to be submitted into evidence in court if they are not

  1. Tested and reported from an AABB accredited lab;
  2. Collected from an independent DNA collector completing a chain of custody to verify the identity of those being tested.

Our testing results fit both of these requirements, for all DNA test we perform.

In our grandparent DNA testing process, we begin with a base of 24 genetic markers. If we are not able to obtain a strong enough finding at that level we will automatically upgrade the number of markers being examined on your DNA samples, up to 46 markers if necessary, until the lab is satisfied that the strongest result has been obtained. Grandparent DNA test results are always reviewed by a Ph.D., who verifies the conclusion and signs the report.

Often Asked Questions About Grandparent DNA Testing

Grandparent DNA Test FAQs

Many grandparents order this test because they are concerned that they might not be the actual biological grandparents of a child or children. They are rightfully concerned, and only want to know the truth. Being a grandparent requires both emotional and financial support for many years, and if there is a question about the paternity of a grandchild, the grandparents have a right to know with certainty that they are related. Aside from peace of mind, there may also be legal reasons for wanting to confirm a biological relationship if the suspected father of the children is not available.

We believe that open and honest communication is always best.

If you are seeking answers for personal information only, using our at home Grandparent DNA kit, then the test can be done discreetly and privately between grandparent(s) and grandchild without any other person knowing.

If you are needing a legal DNA test then the custodial parent or legal guardian will need to give written consent.

Yes! Only the person who orders the test has access to the information. We never discuss results with anyone else to ensure your privacy.

Yes. If you are needing a DNA test for death benefits, immigrations, probate, or to prove the relationship to the IRS or other government agencies, then your will need to a legal Grandparent 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. It is best to add the biological mother to the testing in these situations, if possible.

If the child at question is a male, and the grandfather is available, we suggest you test male to male. 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.

If the grandfather is not available, the lab makes the necessary adjustments to test a grandmother and possible grandson.
If the child at question is a female, a DNA test can be done with the grandmother or a DNA test with the grandfather as either will be sufficient in almost all cases.

Unfortunately not. The genetic tests that are performed for grandparent DNA tests are only screened for the sole purpose to find genetic matches in the other individual testing against.

Yes! Alternate samples are very common to use when you want to have the testing run in a very discreet way. To learn more about this option click on Alternative DNA Samples.

It is very common for those who are taking a DNA test to live at a distance that makes it not practical to get together and do the DNA collection together. We provide an an option on our order form to have additional DNA collection kits sent to additional addresses.

On the order form just select how many additional kits are needed, and provide the addresses in the area that asks where we are sending them.

Our DNA kits are linked using the same case number. When all samples are in the lab, they are matched using your unique case number. We will notify you once all samples have arrived and testing has begun.

Our commitment to you is to provide the most accurate testing as the lowest possible cost. We do not believe that learning the truth should cost you a small fortune. To learn more about our commitment to low prices please click on Our Prices,

If you have additional questions, please call us a 1-855-362-5224 or email us at