Laboratory Sampling Services

If your risk assessment or routine monitoring shows that your water needs to be tested for legionella, we can guide you through the process and give advice on collecting samples.

If your risk assessment or routine monitoring shows that your water needs to be tested for legionella, we can guide you through the process and give advice on collecting samples.

Then, we’ll get them tested for you at one of our accredited laboratories.Why you may need to test for legionella

Routine sampling and testing of domestic hot and cold water systems is not normally necessary. However, there are some situations where you may need to do it – and when that’s the case we’re here to help you.

Here are some reasons why you may need to test your water:

  • If your legionella risk assessment shows that it’s necessary.
  • If you’re not sure that existing control measures are working.
  • If your system has been treated with biocide.
  • If you’re not achieving consistent temperature control.
  • If you’re not achieving consistent disinfectant concentrations.
  • If your premises are home to people who are susceptible to infection.
  • If you’ve had an outbreak of legionellosis.

If you know there’s been low usage, stagnation, excess storage capacity, dead-legs, excessive heat loss or crossflow in your water system.

Think you may need to be tested? Call us on 0800 6890631 or email us.

Highly trained & experienced


CompEX (hazardous area) installation and maintenance using approved certified staff


Hold CSCS (Construction Skills Certificate for Safety) card accreditation


Are trained on utility site-specific passports


Hold 18th edition electrical certification to BS7671


We are confined space entry trained


Are IOSH and NEBOSH qualified


Are Approved Registered Persons (NPORS) to BS7121 for crane lifting exercises


Hold EUSR national water hygiene cards

Years Established

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CompEx Certified

The CompEx Scheme is the recognised global scheme for the protection of workers anywhere that explosive atmospheres exist. The CompEx Scheme provides competency validation of individuals across a range of disciplines and different hazards to help create a safer workplace.

EUSR national water hygiene card holders

The National Water Hygiene (‘Blue Card’) scheme plays a vital part in ensuring the protection of public health and promoting safe drinking water practices. Originally developed in 2006, this scheme replaced the many different water company specific hygiene training programmes and courses, removing the need for individuals to undergo separate testing, health screening and the carrying of multiple cards.

Construction Skills Certification Scheme

CSCS cards provide proof that individuals working on construction sites have the appropriate training and qualifications for the job they do on site. By ensuring the workforce are appropriately qualified the card plays its part in improving standards and safety on UK construction sites.

The Ultimate Service

Our integrated approach and all-encompassing service make us who we are. We are extremely proud of our edge in bringing technical expertise, engineering excellence, project management experience and wealth of knowledge to every project.

Founded on the ethos of Lifecycle Engineering, SES provides complete support and engineering expertise throughout the lifecycle of the project.

From concept to feasibility right through to design, build, installation, operation, maintenance and support, SES oversees every stage of the project.

Call For a Quote:

0800 689 0631

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Contact details

SES Ltd, Southern Water, Millbrook STC, Western Docks, Western Avenue, Southampton, SO15 0HH