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Water Hygiene

Comfort Services Group Ltd deliver a wide range of water hygiene services designed to ensure clean drinking water and the safety of your water systems.

We can create bespoke hygiene programs and provide maintenance to prevent Legionella and other water borne bacteria. All our works are carried out in accordance with the guidelines, which are laid out in the Approved Code of Practice L8 (ACoP L8). We are proud to be members of the Legionella Control Association (LCA). This professional organisation consists of experienced manufacturers, installers and consultancies which operate within a wide range of industries that can be impacted by the risk of Legionella. The risk from Legionella in water systems is greatly reduced if regular monitoring is carried out as part of the Legionella risk management programme. Our experienced team will ensure that the health risks are fully managed and that the level of any contaminants remain below the legally acceptable levels.

Comfort Services Group have partnered with ZetaSafe Compliance Software to ensure our client’s premises remain compliant with the latest Legionella Risk Assessment regulations. The innovative and powerful software platform affords both Comfort Services Group Ltd and our extensive client base a real-time view of compliance levels.

Legionella Risk Assessment

All of our domestic water testing & treatments are subject to industry HSC ACoP L8 (2013) & HSG274 Part 2 assessments. This is to raise awareness and prevent the threat of contamination and the spread of harmful Legionella bacteria. We achieve this through completion of a Legionella Risk Assessment, which contains a thorough test and analysis of your water system followed by detailed recommendations, based on the results.

We also help building landlords meet their legal obligations for domestic water provision, storage, plant and tank checks as well as potable and Legionella sampling.

Provision of documented water management procedures will identify preventative and scheduled works along with client / end user and landlord responsibilities, samples of these Legionella Risk Assessments and Log Books can be provided upon further request via our contact us page.

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Legionella Risk Assessment

Chlorination and Sterilisation

Chlorination and sterilisation are both essential catalysts for the successful running of a water system and an important prerequisite to initialising new water system installations and maintenance of existing water system services.

Our domestic water treatment processes are carried out inline with current HSC ACoP L8 (2013) & HSG274 Part 2 Technical Guidance which aim is to raise awareness, manage and control the risk of Legionella bacteria growth.

Mains Water Chlorination and swabbing of newly installed pipework can be performed in line with the requirement of your Local Water Authority such as Anglian Water and Thames Water.

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Chlorination and Sterilisation

Chlorine Dioxide Dosing

Comfort Services Group Limited are proud to announce that we are now covered by Legionella Control Association (LCA) for Plant & Equipment as part of our services provided in the water treatment industry.

Comfort Services Group Limited can provide you with the full package including equipment and installation, chemical supply, service breakdown along with a full monitoring regime with monthly serving and plant monitoring visits. The units are installed and maintained by our team of specially trained engineers, site service specialists and technical experts.

The installation and fittings are all WRAS approved: Since 2008, the Water Regulations Advisory Scheme (WRAS) has been committed to safeguarding public health through the prevention of public water supply contamination, as well as ensuring efficient water usage.  Any water fitting that comes into contact with public mains water supply must comply with the 'Water Supply (Water Fittings) Regulations' which can be illustrated through WRAS approval. For more information on WRAS and WRAS approvals follow https://www.wras.co.uk.

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Chlorine Dioxide Dosing

Comfort509 (Alternative to Chlorine Dioxide)

If you are having problems with recurring Legionella-positive tests, high TVC or Pseudomonas results, this could be the answer. Whether you want to operate with hot water temperatures below those required by ACOP L8 and HSG 274 to save energy costs; protect users from scalding without the expense of fitting Thermostatic Mixer Valves or ensure your water system is hygienic and free from bacteria – this product is the answer. It sets completely new standards in legionella control.

With the EU banning ionisation because of the copper content a new Legionella strategy had to be sourced out where temperature control fails. This has led the UK to look for an alternative that does not cause detrimental damage to water systems and at the same time is dispersive and delivered proportionally. 

Comfort509 is a new tried and tested product. As an odourless, tasteless chemical which is fully approved for dosing into potable water, it is specifically developed for use in water hygiene and pipework treatment applications, where it quickly eradicates legionella, pseudomonas and other microbes. This alternative to Chlorine Dioxide is a stable active halogen solution, which rapidly kills all bacteria, viruses, fungi and spores, and is highly effective in breaking down the biofilms which harbour these pathogens.

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Comfort509 (Alternative to Chlorine Dioxide)

Sanosil an effective, safe and environmentally friendly biocide

Comfort Services Group are constantly on the look out for new, better products when it comes to water treatment. New scientific evidence is constantly being gained and new products and methods are being developed to help us to fight the small yet most dangerous enemies. An intensive research in this highly competitive market has been in progress for a considerable amount of time. Every day, at work and in our homes, we are exposed to countless microorganisms that can affect our own health. The biggest challenge is to find a disinfectant that is effective, but in the same time safe and ecological. Sanosil combines all of these.

Sanosil is an eco-friendly, multi-component oxidizing biocide scientifically formulated using a stable combination of hydrogen peroxide (H2O2) and silver (Ag) ions to create a highly effective sanitising solution. The combination between the hydrogen peroxide and silver is so effective that it creates a biocide twenty times more powerful than that of hydrogen peroxide alone. This simple, yet very effective water disinfectant can be used for biological control virtually in any application, whether for drinking water or within air-conditioning plants, cooling towers, swimming pools, in the hospitals and pharmaceutical industry, food and drinks industry and on livestock farms. 

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Sanosil  an effective, safe and environmentally friendly biocide

Ultraviolet Water Disinfection

UV water disinfection is a an increasingly popular and commonly used water treatment technology that leaves no taint, chemicals or residues in the water. Disinfection using UV light is a method used in a range of environments such as water, air and on surfaces. It is quick and clean and no bacteria, viruses or moulds are immune to the power of UV.

UV disinfection systems, also called ‘UV sterilisers’ or ‘UV water filters’, comprise of a stainless steel reactor chamber housing, UV lamp or lamps and the protective quartz sleeves that the lamps sit in. The quartz sleeve normally separates the lamp from the water to prevent the lamp from cooling. The micro-organisms in the water are exposed to UV light generated by a UV lamp enclosed in a stainless steel or (less commonly) plastic chamber.The UV breaks and modifies the DNA contained in the cells of the organisms, stopping the bacteria from reproducing and effectively killing it.

Comfort Services Group can provide the servicing and maintenance of the UV units and replacement of the UV lamps as per the customer’s requirements. We offer a free, no obligation initial quotation and would love the opportunity to chat with you about your needs and how we may be able to help. 


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Ultraviolet Water Disinfection

Cold Water Tank Cleaning and Disinfection

Among a wide range of water treatment and water hygiene services Comfort Services Group provide to help you eliminate the risk of legionella and a variety of other bacteria growth in their property’s water systems is cold water tank cleaning and disinfection. As legionella bacteria is prone to growing in stagnant water, it makes your cold water storage tanks one of the more likely places where harmful bacteria may appear. Water also can quickly become contaminated by a range of bacteria if cold water storage tanks are maintained poorly or irregularly. According to Legionnaires' Disease Technical Guidance HSG274 provided by Health & Safety Executive (HSE), cold water storage tanks require annual inspections, which would reveal if cleaning, disinfection, repair or even replacement is necessary. 

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Cold Water Tank Cleaning and Disinfection

Comfort Compliance

Save time and money with a L8 legionella management system.

Gain L8 legionella management control with Comfort Compliance, our cloud-based management system that puts everything you need in one place. It will give you peace of mind, keeps records organised, while saving you time and money -  and giving you control over legionella bacteria.

When you choose Comfort Services Group for your Legionella Assessments and water sampling and quality testing, you gain a dashboard view of every asset, maintenance task, test and result. You gain clear visibility of your risk, at-a-glance, ensuring nothing gets missed.


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Comfort Compliance