Regular cleaning and disinfection of water systems is essential to control the risk of legionella bacteria and maintain compliance with HSE ACoP L8, HSG274 and relevant British Standards
At KWS Ltd, we provide professional water system cleaning and disinfection services across the UK, covering everything from cold water storage tank cleaning to full system chlorination and mains disinfection, with all works carried out in line with industry best practice.
Cold Water Storage Tank Cleaning & Disinfection
Over time, cold water storage tanks can accumulate debris, scale and biofilm, creating an environment where bacteria can grow. Our tank cleaning and disinfection service ensures systems are returned to a clean, hygienic and compliant condition.
All works are carried out in accordance with:
- HSG274 Part 2
- BS 8558 (design, installation, testing and maintenance of services supplying water)
Following cleaning, tanks are disinfected using appropriate methods and returned safely to service with full documentation/certification.
Chlorination & Water System Disinfection
We carry out chlorination and disinfection of water systems to eliminate bacterial contamination including legionella bacteria, and restore safe operating conditions.
This includes:
- Full hot and cold water system disinfection
- Calorifier chlorination and disinfection
- Remedial disinfection following failed sampling results
All chlorination works are completed in line with:
- BS EN 806
- BS 8558
- HSG274 guidance
We select the most appropriate disinfection method based on the system, contamination risk and site requirements. This may include traditional chlorine-based disinfection or alternative methods such as hydrogen peroxide disinfection, ensuring an effective and controlled approach to bacterial treatment.
Mains Water Disinfection & New Installations
We provide mains water disinfection services for new and modified pipework systems, ensuring they are safe for use before being brought into operation.
This includes:
- Disinfection of new MDPE pipework installations
- Pre-commissioning cleaning and chlorination
- Issuing of chlorination certificates for new mains systems
All works are carried out in accordance with:
- BS 8558
- Water Regulations Advisory Scheme (WRAS) guidance
KWS Ltd holds an EUSR (Energy & Utility Skills Register) card, demonstrating competency in carrying out mains disinfection works safely and in line with industry requirements.
Post-Disinfection Sampling & Verification
Following any cleaning and disinfection works, we can carry out water sampling and analysis to verify the effectiveness of the treatment.
All samples are:
- Taken in accordance with BS 7592 and ISO 19458
- Analysed by a UKAS accredited laboratory
- Delivered to the lab on the same day to ensure accurate results
This provides confirmation that systems are safe, compliant and ready for use.
Why Choose KWS Ltd?
KWS Ltd delivers a practical, reliable and fully compliant approach to water system cleaning and disinfection, with a focus on doing the job properly and efficiently.
- Independent service with no unnecessary upselling
- Over 20 years’ experience in water hygiene and legionella control
- Fully compliant with British Standards and HSE guidance
- Use of appropriate disinfection methods for each system
- Clear certification and reporting following all works
Book Cleaning & Disinfection Services
If you require tank cleaning, chlorination or water system disinfection in Birmingham, the Midlands or across the UK, KWS Ltd can provide a professional and compliant service.
Contact us today for a fast quote or expert advice.