
If you run a care home, school or portfolio of buildings in Sheffield and South Yorkshire, sampling gives you evidence that your water systems are under control.
Water Hygiene Services is an independent Legionella control company based in Leeds, about 35 miles from Sheffield. We take water samples for estates, facilities and property managers in Sheffield and South Yorkshire, analysed by a UKAS-accredited laboratory.
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What is Legionella testing, and when is it needed?
Legionella testing means taking water samples from chosen points in a building and sending them to a UKAS-accredited laboratory. It gives you documented evidence of whether your controls are working, and can show problems that temperature checks miss. We sample to BS 7592 and the guidance in HSG274, supporting ACoP L8.
There is no single frequency for sampling. Your risk assessment says whether it is needed and how often. For the full detail, see our UKAS Water Sampling page.
- The site is higher risk, such as a hospital, care home or leisure facility
- Temperature or flushing checks have failed
- Cleaning, disinfection or remedial works have just been done
- A previous result was positive
- The building has been empty and is being brought back into use
- Your risk assessment recommends it
Water sampling in Sheffield
Yorkshire Water supplies the area. Student accommodation and university buildings are partly empty out of term, and converted industrial buildings often have unused branches. Sampling shows whether standing water has become a problem.
We take samples at:
- The two universities and their student accommodation
- Hospitals, clinics and care homes
- City centre offices, hotels and venues
- Former steelworks and industrial buildings now used as offices, studios and business units
- Large retail and leisure centres
How sampling works
- We agree the sampling points with you, based on your risk assessment.
- Our engineer takes the samples using a set method and records the temperature, location and time at each point.
- Samples go to a UKAS-accredited laboratory in suitable conditions.
- You receive a written report with the findings, explained in plain English.
- If anything is found, we recommend the next step and arrange re-sampling to confirm the system is clear.
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Questions we are asked in Sheffield
Do converted industrial buildings need sampling?
It depends on your risk assessment. Where outlets are rarely used or pipework has been altered, sampling shows whether the water is a problem.
What do the results mean?
No Legionella detected: your controls are probably working. Carry on with routine monitoring, flushing and maintenance. Low levels detected: this should trigger a review of temperatures, water movement and use. Cleaning, flushing or small adjustments often bring the system back under control. High levels detected: this needs prompt action, which may include restricting outlets, disinfecting part of the system and investigating the cause.



