Get in touch

If you have any queries about our service, please get in touch using any of the methods below and one of our trained experts will get back to you as soon as possible.

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Opening Times

Monday - Friday
9:00am – 5:00pm

Contact Details

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Get in touch by post
Please address any questions for the attention of thatDNAcompany® at:
Complement Genomics Ltd
The Durham Genome Centre
Park House, Station Road,
Lanchester, Co. Durham,
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We endeavour to give the best possible service at all times. If you have any comment on how we can improve or indeed, if you have a complaint, then please contact us. Similarly we are always pleased to hear positive feedback and look forward to hearing if we have helped you move forward in life.

DNA Testing Services Online

Our personal information, at-home DNA test kits are dispatched within the UK by Royal Mail 1st class as standard or you can pay a little extra for Special Delivery.

From the time we receive your properly consented DNA samples (day zero), our standard tests only take 2 working days or you can pay a little bit extra for next working day results!

Order your home DNA test kit online today!

That DNA Company: Extended Services


Do you require a DNA test for legal purposes? (An accredited test)

This is for changing the name on a birth certificate at the Registrars office, Home Office or Passport Office applications, family court proceedings, inheritance disputes or liaison with the Child Support Agency (CSA). As this is a different level of service, please visit our sister service, dadcheck® for this type of test.


Are you from the legal profession?

If you are from the legal profession (e.g. solicitor) or a Local Authority and require our DNA testing services, please call 0191 543 6334 or visit