DNA Test - Federal Way, WA

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Health Street provides DNA tests and legal paternity testing in Federal Way, Washington at 3 testing laboratories. Call (253) 235-0366 or schedule online. We offer legal paternity tests, sibling studies, grandparent DNA tests, avuncular (aunt or uncle) testing, and postmortem DNA testing to determine if people are biologically related.

Set up DNA testing appointments online. Test results can be used in court for child support or to change a birth a certificate; it can also be used for simple peace of mind. Appointments can be scheduled together or separately. Legal DNA tests are done by cheek swab at our testing centers. We can also extract DNA samples from hair follicles, fingernails, and other specimens.

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DNA Test - Federal Way, Washington

Federal Way WA DNA Testing Locations

Types of DNA Tests at our Federal Way, Washington clinics:

Paternity Testing can conclusively establish whether or not a man is the biological father of a child.

Relationship Testing for other close family relationships can be performed at our testing centers. Our DNA testing services can confirm or deny biological relationships between grandparents, grandchildren, siblings, half-siblings, aunts, uncles, nieces and nephews:

Grandparent DNA Test (if the father is not available for testing)
Sibling DNA Test (possible brothers, sisters, or half-siblings)
Avuncular DNA Test (aunt/uncle and niece/nephew)

Specimens we can test for DNA

The easiest and most reliable way to obtain a DNA sample for paternity testing is to swab the inner cheeks of the alleged father and child or children. These skin cells are known as buccal cells, and they rub off easily onto cotton swabs and remain in place for analysis by our laboratory.

Other specimen samples, such as hair follicles, fingernails, and garments that might contain someone's DNA, can also be tested. An Alternative Specimen DNA Test is done by ordering one of our testing kits online and shipping the specimens back to us.

Legal DNA Tests vs. "Peace of Mind" At-Home Tests

A Legal Paternity Test is a court admissible lab testing service performed at an AABB accredited laboratory. Accurate results for DNA paternity testing with 99.99% confidence or greater take about a week.

When deciding which type of DNA test is right for you, consider first what you might do with the results. A legal paternity DNA test will hold up in court for such matters as child support or to change the name on a birth certificate. This test must be performed using strict chain of custody procedures. Our Federal Way DNA testing technicians are trained to follow these guidelines so that the results will be legally admissible.

How to schedule a DNA Test in Federal Way WA

Scheduling a DNA test at one of our Federal Way clinics is simple and fast, and we often have appointments available in the same week. It's always helpful to schedule in advance to make sure you get the time you want. Please call our customer service team to help you book your appointment over the phone, or set up your appointment easily online.

We have state of the art testing labs and friendly clinics that perform the DNA sample collection in Federal Way, plus many more locations throughout Washington and across the United States. During registration, we'll show you the nearest locations for DNA testing so you can choose the site that's most convenient. You'll also pick the times and days that you prefer.

Why Health Street

More than a Decade of Experience

Since 2010, Health Street has offered DNA tests in Federal Way, the state of Federal Way, Washington, and throughout the nation.  Since our founding, we have focused on helping people obtain the DNA and paternity tests that they need, from Federal Way to neighborhoods everywhere.

Commitment to Excellence

Our mission is to understand the DNA testing needs of our clients. We strive to provide the most accurate, fast, and conclusive paternity tests in Federal Way. 

Federal Way, Washington DNA Testing

Washington's Presumed Paternity Law

According to the King County Paternity Unit, a man is presumed to be a child's biological father if he and the child's mother were married at the time of birth or the couple was divorced within 300 days of the child's birth. Even if the couple knows the man is not the child's biological father, he is still presumed to be the legal father until a court order is issued either stating that the man is not the father or confirming that another man is the child's father. Until this happens, the man may also have an obligation to pay child support.

How to Establish Paternity in Federal Way

In Federal Way, and the rest of Washington state, when a child is born to parents who are not married, it's necessary to take steps to establish legal paternity. According to the Clement Law Center, a paternity law firm serving Federal Way and the surrounding area, this can be done by both parents signing and filing an Affidavit/Acknowledgment of Paternity. When this is done, the mother can immediately demand child support and the father can immediately petition the courts for visitation or custody.

If both parents do not acknowledge a child's paternity, a child's parentage can be established by petitioning the courts for an Establishment of Parentage. As part of the process, the court will typically order a DNA paternity test to confirm whether the man is the child's biological father.

Benefits of Establishing Paternity

While it requires a bit of effort, there are many reasons to go through the process of establishing a child's paternity. Washington Family Law Group, which serves Federal Way and the surrounding area, lists the following benefits:

Knowing both parents can give children a greater sense of belonging
When a child knows his or her father, they can access their full family medical history
The child may be eligible for benefits if the father is a military member or veteran
The child may be able to access the father's medical insurance benefits
Both parents will have legal responsibility for providing the child with financial support

Last updated 12/26/2022

Some Federal Way Neighborhoods That We Serve

Campus Highlands
Enchanted Village
Kitts Corner
Marine Hills
Twin Lakes

Additional Services

Health Street offers a variety of other services, including:


"Paternity Unit." King County, https://kingcounty.gov/depts/prosecutor/child-support/paternity-unit.aspx
"Effectively Handling Paternity And Parentage Claims." Clement Law Center, https://www.clementlawcenter.com/child-custody-and-visitation/paternity-and-parentage/
"Paternity Cases in Seattle." Washington Family Law Group, PLLC, https://www.washingtonfamilylaw.com/paternity-cases-in-seattle.html
"Federal Way, Washington Neighborhood Map - Income, House Prices, Occupations, Boundaries." City-Data.com, https://www.city-data.com/nbmaps/neigh-Federal-Way-Washington.html