Legionella Remedial Works

Legionella remedial works involve practical actions and system modifications aimed at the control of legionella bacteria and mitigating risks your legionella risk assessment will identify. While inspections diagnose hazards, these vital remedial measures are designed to minimise the risk of legionella, moving water safety from identification to resolution.

These examples of remedial actions can vary, from optimising hot and cold water pipework (considering system design to prevent stagnation) and servicing TMVs, to fitting a new tank, tank cleaning to remove rust or limescale, disinfection, dead leg (redundant pipework) removal, or new water treatments. All such remedial actions that may be required aim to make water systems safer, reduce the risk of Legionella growth, and ensure UK compliance, notably with ACOP L8 (the approved code of practice). You can contact our team to discuss your requirements in a no-obligation consultation.

Identified Legionella risks demand urgent remedial action. Delays allow harmful Legionella proliferation, heightening health threats and risking complex, costlier future problems; inaction is unsafe and non-compliant. Legally, UK Duty Holders (under HASAWA & COSHH) must manage these risks. HSE’s ACOP L8 (an approved code of practice) and the guidance document HSG274 mandate that effective remedial measures put in place stem from risk assessments, as inaction risks severe penalties, including prosecution.

Crucially, immediate action reduces the risk of Legionnaires’ disease, a potentially fatal pneumonia from contaminated aerosols, especially dangerous for vulnerable individuals. Other related illnesses can also affect occupants. As a Duty Holder, you must protect everyone on your premises. Prompt remedial works fulfil this duty, safeguarding health and safety, ensuring legal compliance, and maintaining a safe water system.

In the UK, ‘Duty Holders’—including employers, business owners, landlords (residential/commercial), and managing agents controlling premises with man-made water systems—are legally responsible for carrying out Legionella remedial works. If your risk assessment identifies corrective actions, Duty Holders must implement them. This duty spans diverse sectors: private rentals, all business sizes, schools, universities, hospitals, dental clinics, care homes, offices, factories, hotels, and leisure centres, all of which require legionella risk assessments.

Any premises with legionella bacteria in water systems posing a risk means the Duty Holder may need remedial works identified by the assessor. Understanding your obligations and acting on risk assessment findings via effective remedial measures put in place is critical for water safety and legal compliance according to current regulations.

AJK Services offers comprehensive and cost-effective Legionella remedial works for deficiencies and risks from your risk assessment, restoring safe, compliant water systems. Some of our key services include:

• Pipework Modifications & Dead Leg Removal: Removing redundant pipework (dead legs) or reconfiguring systems to improve circulation, helping to remove or reduce Legionella-prone stagnation points and key risks identified in the audit.
• Water Tank Cleaning, Disinfection & Refurbishment: Thorough cleaning, disinfection, and refurbishment of cold water storage tanks to ensure compliance, inhibit bacterial growth, and maintain water safety. This can address issues like rust and limescale buildup.
• Thermostatic Mixing Valve (TMV) Servicing & Installation: Expert TMV fitting, servicing, and replacement to control water temperature, prevent scalding, and aid effective Legionella control.
• Full System Disinfection & Chlorination: Effective disinfection of entire water systems (e.g., chlorination) post-contamination or major system alterations to eradicate Legionella bacteria.
• Showerhead & Outlet Cleaning, Descaling & Disinfection: Meticulous cleaning, descaling, and disinfection of high-risk showerheads and outlets, reducing Legionella exposure from common aerosol sources.
• Updating Water Management Logbooks & Schematics: Accurate updates to system schematics and logbooks post-remedial works, maintaining crucial documentation for compliance and safety records.

As your dedicated service provider, AJK Services’ Legionella remediation process is clear start to finish, thorough, and effective, ensuring compliant water systems with minimal fuss. We start with a consultation and meticulous review of your risk assessment to precisely understand risks, site requirements, and work scope. Next, we develop a tailored remediation plan with proposed actions and a clear, itemised quote for full transparency.

Our experienced, qualified engineers then perform agreed remedial works, adhering to ACOP L8 and top health and safety standards, minimising operational disruption. Upon completion, we conduct post-remediation verification checks for effectiveness. You receive comprehensive documentation and relevant certification for the works undertaken, which are formally signed off to complete, providing a clear compliance record and peace of mind.

Partner with proven experts by choosing AJK Services for Legionella remedial works. As proud members registered with the Legionella Control Association (LCA), with years of experience, we meet top industry standards or guidelines and the LCA Code of Conduct, ensuring high service standards, competence, quality, and best practice in water safety.   You can view a selection of our previous projects here.

Our qualified engineers leverage extensive expertise, ensuring remedial actions adhere to current UK regulations (like ACOP L8 and the guidance document HSG274 from HSE). We prioritise safety, maintain transparent communication, and deliver effective, long-term solutions for lasting protection and peace of mind with professionally managed, compliant, safe water systems. All work is carried out in such a way to cause minimal disruption to your business operations.

Completing remedial works is vital for safer water systems, but long-term protection demands ongoing vigilance. Water systems are dynamic; Legionella growth conditions can re-emerge if measures put in place remain unmonitored; consistent post-remediation management is key to ensure they remain effective, prevent recurrence, and maintain safety.

An effective ongoing strategy uses a robust water hygiene program: your system must be regularly monitored (e.g., via routine inspection of hot and cold water temperatures, biocides if used), with periodic system and risk assessment reviews (potentially an annual audit of procedures), and meticulous ACOP L8 record-keeping. This diligence ensures the remedial measures put in place remain effective and your control scheme is compliant.

Further guidance on monitoring can be found in the HSE document HSG274 parts 1, 2, and 3. AJK Services offers post-remedial support: expert advice, tailored water hygiene maintenance plans, or periodic system and control reviews, ensuring lasting water safety, compliance, and peace of mind.

How quickly do Legionella remedial works need to be carried out?
The timeframe and urgency depend on your risk assessment’s findings regarding the risk of legionella bacteria. High-risk issues need prompt attention, ideally as soon as reasonably practicable; others can be scheduled based on the legionella risk assessment results. AJK Services advises on priorities for safety and compliance.

What should I expect during on-site remedial works?
We plan meticulously to minimise operational disruption. Some tasks may need temporary, planned water service shutdowns, clearly communicated and scheduled with you.

Why must I use a competent contractor for these works?
A competent, certified contractor (e.g., an LCA member like AJK Services) ensures works are correct, safe, ACOP L8 compliant, and effectively minimise the risk of legionella.

Are Legionella remedial works a one-off solution?
Remedial works address current system issues. They’re part of your overall water safety plan, which needs ongoing management, and the system must be regularly monitored to ensure long-term Legionella control.

If your risk assessment identified necessary remedial works, or you have water system safety and compliance concerns, don’t delay decisive action. Safe water is a critical responsibility; AJK Services offers expert support and solutions.

Contact our team to discuss your requirements in a no-obligation consultation or to request a detailed quote for Legionella remedial works, including a legionella risk assessment. We’ll help you achieve full compliance, safeguard health, and gain peace of mind.