Legionella Risk Assessment & Provision of Building Hygiene Log Books
Thorough Legionella risk assessment and recommendations, including the provision of Building Hygiene Log Books.
Legionella Risk Assessment
Legionella risk assessment is an essential part of managing water hygiene and ensuring your premises comply with UK health and safety law. At Comfort Services Group, we provide detailed assessments to identify, manage, and control legionella bacteria within all types of water systems.
From cold water tanks to domestic hot and cold water systems, our goal is to help you meet your legal obligations, prevent exposure to potentially fatal forms of Legionnaires’ disease, and maintain a safe environment for everyone who uses your property. Our team offers practical, evidence-based guidance to help you achieve full compliance with confidence.
Comprehensive Risk Assessment
of Your Water Systems
Our Legionella risk assessment service provides a full evaluation of your water systems to identify hazards, assess risk levels, and implement suitable precautions. Using technical expertise and the latest management systems, we examine how water is stored, distributed, and maintained across your premises.
Each system is carefully reviewed for redundant pipework, low usage, and other factors that can encourage waterborne pathogens. Whether your property is commercial, residential, or industrial, our approach ensures compliance with all relevant health and safety regulations, reducing the likelihood of legionella growth and ensuring your management practices align with approved codes of practice.
Our assessment includes:
Our experienced engineers are highly skilled and proficient in delivering second-to-none services, including the following:
Site survey and system mapping
Review of water storage, distribution, and temperature control
Evaluation of maintenance routines and current control measures
Detailed, practical recommendations for risk reduction
A thorough water risk assessment not only ensures compliance but helps protect the health of building occupants. By identifying and controlling potential risks early, you can prevent exposure and meet your legal duties as a duty holder or landlord. Comfort Services Group provides complete guidance, helping you feel competent and supported when managing your water hygiene obligations under UK safety law.
Provision of Building Hygiene
Log Books
Our building hygiene log books are an essential management tool designed to help you maintain ongoing compliance and control of your water systems. They provide a structured way to record and review key activities such as water temperature monitoring, flushing of outlets, and maintenance routines.
This documentation supports your duty holder responsibilities and provides evidence that your premises comply with UK health regulations. Keeping these records up to date ensures that potential risks from legionella bacteria are managed effectively and that simple control measures remain consistent, traceable, and legally compliant throughout the life of your building.
Our log books include:
Temperature monitoring logs
Flushing records for little-used outlets
Cleaning and disinfection records
Maintenance activity sheets
Corrective action tracking
Water system diagrams and asset lists
Maintaining an accurate building hygiene log book is not just a legal requirement but a practical way to ensure your water systems stay safe and reliable. It offers transparency and traceability for all control measures, helping key personnel demonstrate compliance during audits or inspections. Comfort Services Group makes it easy for you to manage, update, and review your records as part of a proactive legionella management strategy.
Why Building Owners and Facility Managers Choose Us?
Our clients choose us for our balance of technical expertise and practical understanding of health and safety law. We help businesses of all sizes manage their legal obligations effectively, using compliant yet simple control measures that work in the real world.
From risk assessment to implementation, our team ensures that every water system is properly managed and that your legionella compliance remains consistent. We also support landlords, employers, and property managers with ongoing training and periodic reviews to ensure continued adherence to safety legislation and the highest standards of water hygiene management.
Professionally trained and accredited assessors
Straightforward, practical compliance advice
Tailored recommendations specific to your building
Assistance with implementation and ongoing monitoring
Optional scheduled compliance review and refresher services
Suitable For:
Commercial buildings & offices
Hotels & hospitality venues
Education campuses & childcare facilities
Residential blocks & rental properties
Care homes & healthcare premises
Manufacturing & industrial sites
Systems that Require a Legionella Risk Assessment
If your building uses or stores water in any way — hot, cold, or somewhere in between — you probably need a legionella risk assessment. It’s that simple. Water sitting still, moving slowly, or cooling down too much can create the perfect space for bacteria to grow. Cold water tanks, showers, evaporative cooling towers — even rarely used taps — all count.
The real danger comes from tiny water droplets you can’t see, the ones that carry Legionnaires’ disease, a serious type of pneumonia. At Comfort Services Group, we don’t just tick boxes. We look closely at every pipe, lid, and outlet so you know your system’s safe, compliant, and under control.
What Our Customers Say
“The team at Comfort Services Group were awesome when they carried out the Legionella Control works at our offices, they were very accommodating, Tom and the guys on site were a pleasure to work with. I would recommend the services of Comfort Services Group without reservation. Excellent First impressions with the Office Team, which was mirrored by the guys who did the work. Thanks guys.”
Michael Green
“I have had Comfort commissioning working on different projects for the companies i have worked for over the past 15 years. They have assisted in many difficult projects throughout the country. Andy and Lawrence have been very professional and helpful. i found their attitude, and pro-active approach to be of very high standard. i will always push to use them on future projects”
Chris Richards
“Comfort commissioning are a great company, they deliver great services and the team there are very helpful and efficient. They really do care about their customers and take a keen interest in ensuring a high level of customer service is maintained at all times.”
Gary Clatworthy
“Fantastic service from Comfort from start to finish. Very responsive, friendly, reliable and professional.”
Sarah
“Contacted Comfort Commissioning Services Ltd for advice about unusual deposits in the header tank of an open vented domestic heating system. Not core business for them, but one of their directors responded to me really quickly via email with some excellent free advice which was greatly appreciated. Very impressed.”
Pete Davies
Our Legionella Risk Assessment Process
We like to keep things practical. Every legionella risk assessment we carry out follows the Approved Code of Practice and UK health guidelines — but we go beyond just following the book. First, we look at how your system actually behaves day to day: the flow, the temperature, the points that don’t get used as often as they should.
We trace where water moves, where it sits, and where risk might quietly build up. Then, we measure your control measures against real-world standards, not just paperwork. The aim is simple — make sure your systems are safe, your team feels confident, and your compliance never slips.
01
Initial Consultation & Site Information Review
We always start simple — by talking. The first step in every legionella risk assessment is understanding your building, its layout, and the people who look after it. We gather details about your water systems, how they’re used, and where issues might hide. For domestic properties or larger sites alike, this stage helps us spot early signs of trouble — areas that could harbour substances hazardous to health, like legionella bacteria.
We also review maintenance habits, existing records, and how often legionella testing is carried out. Even if your system is classed as low risk, we make sure every control measure fits the space, the people, and the law.
02
On-Site Survey & System Inspection
During the on-site inspection, our assessors carry out a detailed survey of your cold and hot water systems. They evaluate water temperatures, system cleanliness, and overall condition to identify potential risks. Stagnant areas, low-use outlets, and uninsulated pipework are flagged as possible hazards.
We also assess how effectively your current control measures are implemented. All data collected during this phase helps determine the level of risk and ensures your management system aligns with the latest health and safety regulations, keeping both employees and building occupants safe from waterborne pathogens like legionella bacteria.
Water temperatures and circulation
System cleanliness and condition
Areas of stagnation or low usage
Adequacy of control measures
03
Asset Identification & System Mapping
This part’s where everything starts to take shape. During your legionella risk assessment, we record and map every part of your water network — the cold water tanks, pipework, calorifiers, outlets, and any other systems that might carry risk. Nothing’s left to guesswork. Each piece is documented and added to a visual map that shows how everything connects.
From there, we identify spots that need attention or should be regularly cleaned to keep control measures working. This stage isn’t just about compliance — though it’s legally required — it’s about knowing your system inside out so maintenance stays simple, safe, and transparent.
04
Risk Analysis & Control Measure Evaluation
Once we’ve gathered all system data, we evaluate your current control measures against the risk level of each component. We assess whether your procedures are sufficient to prevent the spread of legionella bacteria and if any adjustments are needed to maintain full compliance.
The analysis also considers how your management system integrates with wider safety legislation and health regulations. Our findings are then used to recommend straightforward, evidence-based improvements that strengthen your water hygiene strategy while keeping your building’s operations smooth, safe, and fully compliant with the Work Act and UK health standards.
05
Detailed Risk Assessment Report
You will receive a comprehensive report that includes:
Observations and identified risks
Photographs and system diagrams (where required)
Legal compliance status
Clear, practical recommendations
Our reports are written in plain, actionable language – no technical confusion.
06
Provision of Building Hygiene Log Book
Following completion of your assessment, we provide a fully populated hygiene log book tailored to your property. It contains temperature records, cleaning schedules, flushing activities, and maintenance logs, all formatted to meet UK safety law requirements.
The log book acts as both a compliance record and an operational guide, helping your team manage water hygiene daily. We also ensure that your key personnel understand how to record new activities, keep data accurate, and maintain consistency, allowing your business to demonstrate clear, ongoing commitment to legionella control and full legal compliance.
07
Review & Staff Guidance
After the assessment, we review our findings with your team, providing clear explanations and guidance on next steps. Our experts ensure that everyone involved — from maintenance staff to duty holders — feels competent in applying simple control measures.
We offer advice on training, routine reviews, and re-assessments to maintain continuous compliance. Comfort Services Group can also assist with setting up management systems that make tracking, reviewing, and reporting easier, ensuring your water hygiene practices remain up to date and in full alignment with current health and safety regulations.
We are Members of the Legionella Control Association
As proud members of the Legionella Control Association (LCA), we operate under a strict code of conduct and meet all legal and professional standards set by UK health authorities. Membership demonstrates our commitment to excellence in legionella management and compliance.
Our assessors are trained, accredited, and regularly audited to ensure their practices align with the highest industry standards. By choosing Comfort Services Group, you partner with an organisation recognised for integrity, reliability, and the consistent delivery of safe, professional legionella risk assessment services across all types of premises.
A Word About Legionella Control Association
The Legionella Control Association plays a vital role in maintaining high industry standards across the UK. It ensures that service providers follow approved codes of practice and implement robust management systems to protect public health.
Membership is a mark of credibility, confirming that a company has the technical expertise and legal understanding to carry out water hygiene work responsibly. Comfort Services Group’s LCA membership assures clients that every assessment is performed ethically, thoroughly, and in accordance with relevant health and safety legislation — safeguarding both people and property from legionella risks.
Start Strengthening Your Compliance Plan
Every duty holder, landlord, and employer has a legal obligation to control the risks associated with legionella bacteria in their water systems. Comfort Services Group provides all the support you need to comply with safety law, from initial assessment through to long-term management and review.
Our team ensures that simple control measures are implemented effectively and documented properly within your building hygiene log book. Start strengthening your compliance plan today by scheduling a professional Legionella risk assessment that helps protect your premises, staff, and visitors from harmful waterborne pathogens.
Contact Us
Get a FREE consultation
We will process your data in accordance with our Privacy Policy.
You can opt out of these communications at any time by updating your preferences.
Frequently Asked Questions
How often should a Legionella Risk Assessment be reviewed?
It depends. Most buildings stick to the two-year rule, but sometimes life happens — systems change, water use shifts, or something just feels off. That’s your cue to review it sooner. Legionella doesn’t wait for a calendar reminder. The goal isn’t to chase dates; it’s to stay alert and keep your people safe.
Do I need training to maintain the hygiene log book correctly?
A bit, yes. Not the kind that takes days — just enough so it all makes sense. Once you know what to record and why, it becomes second nature. We show you how to keep track of temperatures, checks, and little signs that say something’s not quite right. It’s not about perfection, just awareness and care.
How important is Legionella Risk Assessment?
More than important — it’s essential. We’re talking about a bacteria that can cause a potentially fatal form of pneumonia. This isn’t paperwork for paperwork’s sake. It’s health. It’s safety. It’s proof that you’re protecting everyone in that building. Once you’ve done it properly, you sleep better. And that says everything.
What is the law around Legionella Risk Assessment?
The law isn’t vague on this one. If you own or manage a building, you have a duty — plain and simple. The Health and Safety at Work Act, COSHH, all of it points to one thing: assess and control the risk. It’s not meant to trip you up; it’s meant to protect lives. We just help you do it right.
I’m unsure if my water systems require Legionella Risk Assessment. What should I do?
If water runs through it, probably yes. That’s the simplest way to look at it. Even a small system can turn risky if the water sits still too long or doesn’t get hot enough. Don’t overthink it — ask. We’ll take a look, explain what matters, and tell you straight what needs doing.
What happens if risks are identified during the assessment?
Then we deal with them. Calmly, clearly, step by step. You’ll get a report that actually makes sense — no jargon. We’ll tell you what’s wrong, why it matters, and how to fix it. Whether it’s cleaning a tank, removing dead-end pipework, or changing temperatures, we stay with you until the risk is gone.
Can you assist with ongoing monitoring after the assessment?
Of course. That’s where most people need help — keeping it all up once the report’s done. We can take care of the checks, the testing, the reviews, the bits no one has time for. You don’t have to know every technical term. You just need to know it’s handled, and handled properly.
Is the assessment disruptive to building operations?
Not really. We work quietly, in the background. Most people don’t even notice us. No shutdowns, no drama. Just calm, careful work while life goes on around it. The only thing that changes when we leave is your peace of mind — it gets bigger.
