Genetics Department
The Genetics Laboratory is a UKAS accredited medical laboratory No 8688. Our laboratory, has an international reputation for applying innovative technologies to advance patient care.
Opening hours: Monday to Friday, 9:00am - 5:00pm
With our laboratory forming part of the regional Genetics Centre, we are deeply rooted in a collaborative, expert network of regional, national and international genetics services. We also offer specialist tests to the UK through the UK Genetics Testing Network (UKGTN), and to many clinical services overseas.
South East Genomic Laboratory Hub (SEGLH)
The Synnovis Genetics Laboratory is the hub of the South East Genomics Laboratory network.
NHS England have reconfigured genetic laboratory services and commissioned 7 national Genomic Laboratory Hubs (GLH). The South East GLH, a network of leading foundation trusts and pathology providers has been commissioned to deliver all genomic testing services across South London, Kent, Surrey and Sussex. More information about the NHSE South East Genomic Medicine Service Alliance (GMSA) and GLH can be at the link below.
Home - South East Genomics : South East Genomics
Information on all tests carried out by our laboratories which fall under the scope of the SEGLH, plus the relevant referral forms can be found at: Order or find a test - South East Genomics : South East Genomics
NHS England Indicated Target Reporting Times
NHS England (NHSE) have indicated the target test reporting times, and these together with current Average Turnaround Times can be found at: Service Turnaround Times - South East Genomics : South East Genomics
The Genetics Centre:
- Delivers an integrated service consisting of Guy's and St Thomas' Clinical Genetics department (where clinical advice can be obtained, telephone 020 7188 1364 or refer to the Guy's and St. Thomas' Hospital website) and Synnovis Genetics Laboratory (Molecular Genetics, Cytogenetics, Biochemical Genetics, Oncology Cytogenetics, Molecular Oncology Unit and Pre-implantation Genetics Diagnosis.
- Serves an estimated population of 3.8 million in the South East Thames area.
- Works with the South East England Genetics Network (SEEGen), a consortium of laboratories and genetic clinics serving a population of 14.2 million.
- Is affiliated to the Division of Medical and Molecular Genetics at King's College London.
Our comprehensive range of genetic assays includes tests for inherited and congenital disorders; acquired and inherited cancers; chromosome instability syndromes; and pre-implantation genetic diagnosis.
Only WES, performed in the Molecular Genetics Lab, and PGD for haplotype approach using STR microsatellite markers is covered by the flexible scope. Accredited results cannot be issued until the validation and authorisation of new tests has been completed.
As affiliates of the Division of Medical and Molecular Genetics at King's College London, we are committed not only to genetic research and academic excellence, but to teaching the medical students, nurses and midwives of Guy's, King's and St Thomas', and to the ongoing education of other medical professionals.
Guy's Hospital
- Biochemical Genetics Laboratory at Guy's
- Cytogenomics Laboratory at Guy's (Developmental Disorders; Prenatal and Reproductive Genomics)
- Monogenics Laboratory at Guy's
- Pre-implantation Genetic Testing at Guy's
- The National Diagnostic Epidermolysis Bullosa (EB) Laboratory at Guy's hospital
- Cancer Genetics at Guy's





Oncology Cytogenetics Laboratory at Guy's Hospital
Tower Wing - 5th Floor
Guy's Hospital
Great Maze Pond
London SE1 9RT
Cytogenetics Laboratory at Guy's Hospital
Tower Wing - 5th Floor
Guy's Hospital
Great Maze Pond
London SE1 9RT
T: 020 7188 1709
F: 020 7188 1697
E: cytodutyscientist@viapath.co.uk; gst-tr.viapathgeneticsadmin@nhs.net
Biochemical Genetics Laboratory at Guy's Hospital
Tower Wing - 5th Floor
Guy's Hospital
Great Maze Pond
London SE1 9RT
T: 020 7188 2591/2592
F: 020 7188 7275
E: ViapathBiochemicalGenetics@gstt.nhs.uk
Monogenics Laboratory at Guy's Hospital
Tower Wing - 5th Floor
Guy's Hospital
Great Maze Pond
London SE1 9RT
T: 020 7188 2582/1696
F: 020 7188 7273
E: gst-tr.ViapathGeneticsAdmin@nhs.net
Please use 'DNADS_1' in the subject line
Cancer Genetics at Guy's Hospital
Guy's Hospital
Great Maze Pond
London SE1 9RT
Pre-Implantation Genetic Testing at Guy's Hospital
Borough Wing - 7th Floor
Guy's Hospital
Great Maze Pond
London SE1 9RT
E: gst-tr.pgdenquiries@nhs.net
For Monogenic Disorders
T: 020 7188 1667
F: 020 7188 7273
E: PGT-M_DutyScientist@synnovis.co.uk
PGT for Chromosome rearrangements:
Dr Angela Davies or Ms Susan Bint
T: 020 7188 1701
E: susan.bint@synnovis.co.uk; angela.davies@synnovis.co.uk
Last updated: 13/08/2025