Yeasts and mould testing
Yeast and mould testing for water hygiene and system maintenance
Laboratories of Eurofins Water Hygiene Testing provide yeast and mould testing to support water treatment, hygiene management, and environmental monitoring programmes.
Yeast and moulds in water matrices?
Yeasts and moulds are fungi that thrive in water systems where organic contamination, poor maintenance, or high humidity create ideal conditions for growth. While not usually associated with acute health risks in potable water, they can contribute to biofilm formation, odours, discolouration, and reduced water quality. In sensitive environments such as healthcare, pharmaceuticals, and food production, their presence may also impact product integrity and environmental hygiene.
Supporting hygiene standards and system maintenance
Yeast and mould testing helps assess system cleanliness, verify treatment performance, and monitor microbial loads in areas prone to dampness or organic contamination. Typical applications include domestic water tanks, cooling towers, spa systems, and industrial water circuits. Elevated results may point to biofilm formation, stagnation, poor housekeeping, or ineffective chemical dosing, signalling the need for cleaning, disinfection, or system maintenance.
Accredited laboratory testing
Our UKAS-accredited laboratories (No. 9658, 9508 and 1369) perform yeast and mould analysis using validated culture-based methods. Although these specific tests are not accredited, they are performed under the same high-quality systems that govern our accredited portfolio. Testing is suitable for potable water, process water, closed systems, and environmental samples, with consistent turnaround times to support both routine and reactive projects.
Trusted by hygiene-focused sectors
Eurofins water hygiene testing provides yeast and mould testing services to water treatment contractors, estates teams, facilities managers, and environmental consultants across the UK. Whether supporting a one-off investigation, validating remedial work, or conducting scheduled monitoring, our laboratories deliver accurate and reliable results to support compliance and best practice.
Why choose Eurofins Water Hygiene Testing
- Performed in ISO 17025 UKAS-accredited laboratories
- Suitable for potable water, spa systems, closed circuits, cooling towers, and environmental sampling
- Supports cleanliness assessments, biofilm investigations, and hygiene monitoring
- Consistent turnaround times with flexible scheduling for routine and reactive testing
- Backed by a national refrigerated logistics network ensuring fast and secure sample transport
UK-wide drop-off facilities
Eurofins UK clients benefit from our extensive and free to use logistics and sample drop-off network with over 60 drop-off locations.
Sample bottles
To ensure that we are able to test your water chemistry samples please submit them in appropriate sample bottles.
Get in touch
Would you like to find out more about our water hygiene testing and compliance services? Contact Eurofins Water Hygiene Testing UK today by submitting an enquiry form or calling +44 (0) 845 604 6740.