Reliable Water Sampling and Testing in Dumfries and Galloway

We work with UKAS Accredited Laboratories for water analysis you can trust

We take water hygiene seriously. All our water samples are sent to UKAS accredited laboratories for specialist microbiological analysis. Our expert team conduct in-field sampling for commercial and domestic water supplies and will test your water for harmful bacteria such as Legionella and E.coli.

Dumfries and Galloway’s water is supplied by various reservoirs, such as Penwhirn, Glenkiln, Black Esk and Kettleton. The reservoirs are managed by Scottish Water who ensure that customers in the Dumfries and Galloway catchment receive clean, fresh drinking water to their homes.

There are over 25,000 lochs in Scotland and they play an important role in supplying Scotland’s population with fresh drinking water. If a rural property in Dumfries and Galloway uses a private water supply it means that their water comes from a spring, borehole, well, river or loch rather than Scottish Water.

Roughly 3,000 properties are using one of 1,400 private water supplies in Dumfries and Galloway. These properties could be domestic or commercial, such as Airbnbs or holiday homes.

New Scottish legislation states that landlords in Dumfries and Galloway who rent out entire properties or single rooms within a house that uses a private water supply, have a legal duty to ensure the health and safety of their tenants by testing their water supply.

Our Water Testing Services in Dumfries and Galloway

Protect lives and your peace of mind by knowing that your water is fit for purpose.

Routine drinking water testing is a money-saving, accurate route to year-round healthy, germ-free water.

What we test for:

We offer many types of water sampling in one comprehensive package:

Expert microbiological analysis of water for Legionella, Pseudomonas, Coliforms, E.coli, Total Viable Counts (TVCs) and other parameters.

Laboratory testing for pH levels, Chlorine, Sulfates, Nitrogen, Fluoride, Iron, and other chemical parameters.

We test for physical parameters in water such as Turbidity, Temperature, Colour, Solids, Odour and Taste.

We offer in-field water sampling for Commercial, Domestic and Residential water supplies.

All water samples are sent to a UKAS accredited laboratory where they’re professionally analysed. Results are typically within 10-12 days. When your results are ready, we’ll issue you with a full report and explain any further steps if necessary.

Image of Legionella Bacteria

The difference between
Water Testing and Sampling

Water sampling is the action of sample collection and transportation. It’s different from water testing—the process of microbiological water analysis—and the British Standards Institution sets out different standards for potable water testing and water sampling methods.

The way a water sample is obtained has a significant impact on the final result. Poor sampling techniques can lead to false positives or cross contamination. There are also different types of water sampling and testing. It’s important to cover them all to get an accurate picture of your water system.

If testing water for Legionella we recommend using aseptic techniques and conducting your sample in accordance with British Standard BS 7592.

Water testing must be UKAS accredited otherwise the results are not deemed accurate. Some water analysis companies offer on-site Legionella testing but please be wary; an indication of risk is not confirmation of Legionella. A water sample that hasn’t been tested to UKAS standards holds zero value.

FREE Resources For Water Sampling and Testing

Download the World Health Organisation’s free guides for advice on water sampling and testing:

Why water testing is important:

Next to air, water is our most important resource, but it’s easy to take clean water for granted. Here are reasons why you should take drinking water testing seriously:

Contaminated water poses a threat to human life. Landlords are bound by law to regularly risk assess their water system for Legionella.

Regular water testing helps you track any changes to your water, particularly if you use a private water supply. Rusty equipment or nearby contaminants can pollute your portable water over time.

Microbes, pipe condition and water chemistry are just some of the factors that affect the quality of potable water. Regular testing can identify factors that might be affecting the taste and odour of your water

Water sampling and testing can determine the effectiveness of your current water system and maintenance plan

The UK’s Health & Safety Executive (HSE) states in the Approved Code of Practise ACOP L8 that “reliably detecting the presence of legionella bacteria is technically difficult and require specialist laboratory facilities.

For more information on water sampling methods download HSE’s free guide below.

Water Testing is about more than clean water.

It’s peace of mind that you’re legally compliant and not risking lives.

Testing Water for Legionella

Legionella is commonly transmitted by inhaling contaminated water droplets. Air conditioning cooling towers, hot and cold-water systems, humidifiers, showers, and whirlpool spas are common culprits for harbouring legionella.

When you inhale contaminated droplets, you’re at risk of catching Legionnaire’s disease, a type of pneumonia that’s fatal in around 10% of cases.

Potable water testing should be carried out in the following circumstances.

  • Following a suspected or real legionella outbreak
  • When the residents of the buildings are considered vulnerable
  • If a legionella risk assessment suggests sampling
  • When contaminants and hazards have been identified
  • In situations where potential hazards and contaminants have been identified

Water Testing and Sampling with PHX

Thorough potable water testing that ensures your drinking water is safe.

Complete our contact form or call 01738 472149 to receive a quotation


One of our friendly team will confirm a date and estimated time of arrival for your appointment.

Your Appointment

An engineer will be with you on your scheduled date, with a curtesy call to confirm they’re on route.

Risk Assessment

An engineer will risk assess your water system as outlined above.

Report & Support

You’ll be provided an easy to understand report and digital logbook to manage your ongoing water treatment needs.

Dumfries and Galloway Water Testing FAQs

Water sampling is the action of sample collection and transportation. It’s different from water testing—the process of microbiological—and the British Standards Institution sets out different standards for water testing and water sampling.

Water sampling should be conducted regularly to ensure safety, improve the quality of potable water, identify changes to your water supply over time and monitor the effectiveness of your existing water treatment system.

You can either purchase a water test kit or contact a water analysis company. Be aware that how you take a water sample can affect the result and that water sampling is not the same as water testing. You will need to send your sample to a UKAS accredited laboratory to receive an accurate result.

PHX Water offer Water Testing and Sampling services to private homes and commercial businesses in Dumfries and Galloway. Get in touch with a member of our team to book in a free, no obligation consultation.

There are three main types of water sampling – physical, chemical and microbiological. A thorough water sample will test for all three to determine the presence of metals, solids, iron, fluoride, Legionella, E.coli and other contaminants.

The two water sampling methods are discrete sampling and composite sampling. A discrete sample is collected from an individual container while a composite sample is a series of smaller samples collected at a predetermined time and mixed in the same container.

Yes, PHX are experts in water sampling and testing and services water supplies all over Scotland including Perth, Dundee, Aberdeen and Glasgow.

Areas We Cover

Private Water Supply

Water Tank Cleaning

Contact Us

Get In Touch With Us

Our opening hours are 8am-4.30pm Monday to Friday. 

Please call us on +44 (0) 1738 231670 or complete the form below. Should your enquiry be urgent, please call our emergency number +44 (0) 7503 343328.

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