Neil Munro

Hi, Neil here, I’m one of the Directors at Acorn.

I just wanted to say thank you. You’ve made a really smart decision coming here to us at Acorn. You’ve now taken the first step to removing that health & Safety headache.

So, what’s going to happen next…

  1. If we’ve got all the information we need from you, then someone from the office is going to reach out to you with a quote within the next 24 hours so make sure you look out for that in your inbox. It’s going to come with Quotation in the subject line.
  2. Alternatively, if we haven’t got all the information we need to quote someone in the team is going to reach out to you for some additional information. This is literally just so we can get everything we need to give you the best quote possible.
  3. Once you receive your quote and want to proceed, all you need to do is let us know and we can get the project started for you.

Look I get it, I guess you’ve probably got some sort of health and safety concern. I suspect this is causing you some worry and you just want to get this whole issue sorted fast. Look the good news is if you are feeling like this, then we’re here to help and we’re going to remove that worry for you.

Thank you for choosing Acorn Safety Services, we look forward to partnering with you.

Legionella Frequently Asked Questions

Below we’ve outlined some commonly asked questions.

What is Legionella Bacteria?

Legionella bacteria is a naturally occurring microscopic single-celled organism. Legionella bacteria are widespread and found in natural water systems such as streams, rivers, reservoirs, lakes and ponds however they are usually in low numbers.  Since legionella bacteria can be found within the natural environment it may contaminate and multiple in purpose-built water systems. These bacteria thrive in warm temperatures and low oxygen levels. It is this legionella bacteria found in the water which is the cause of Legionnaires disease.

Where is there a risk from Legionella?

There is a potential risk of legionella within any water system that has the right conditions which could be a source of legionella growth. There is a potential legionella risk in a water system when:

  • Water is stored or re-circulated
  • Water temperature is between 20–45 °C
  • Rust, sludge, scale and organic matters are present
  • Conditions are right to encourage bacteria to multiply
  • Water droplets can be produced and dispersed (e.g showers, areosols etc)
  • Employees, residents, visitors etc are more susceptible to infection due to age, illness, a weakened immune system who could be exposed to any contaminated water droplets.
How much does a legionella risk assessment cost?

This depends on a number of factors. When determining how much a legionella risk assessment costs, some factors such as the type of building, the use of the building and the size of the building (square metre/square foot) need to be considered.

To get your fast, no-obligation quote click here.

Who is responsible for a legionella risk assessment?

The Health and Safety Executive’s approved code of practice (ACOP) Legionnaires’ disease
The control of legionella bacteria in water systems states that the “dutyholder” is responsible for ensuring a legionella risk assessment is carried out. You are the dutyholder if you are either of the following:

(A)  You are the Employer, where the risk from their undertaking is to their employees or others; or
(b)  You are a self-employed person, where there is a risk from their undertaking to themselves or others; or
(c)  You are the person who is in control of the premises or systems in connection with work, where there is a risk from systems in the building, eg where a building is let to tenants, but the landlord keeps responsibility for its maintenance. 

All employers, landlords or premises managers have a duty to understand and manage Legionella risk within their workplace. They need to ensure that they conduct a regular water system risk assessment.

What types of systems are included in a legionella risk assessment? 

A legionella risk assessment should inspect locations where water is used or stored; and where there is a means of creating and transmitting water droplets (aerosols) which may be inhaled, causing a reasonably foreseeable risk of exposure to legionella bacteria.

The following locations should be included where present:

  • Cooling systems with cooling towers
  • Evaporative condensers
  • Dry/wet cooling systems
  • Hot and cold water systems
  • Spa pools
  • Other plant and systems containing water that can create and increase the risk from legionella during operation or when being maintained
Who can do a legionella risk assessment? 

To undertake a legionella risk assessment, you must have the competence (knowledge and skills) to fulfil your health and safety duties, eg take responsibility for managing the control scheme, then you should make reasonable enquiries to satisfy yourself of their competence in the area of work before entering into any contracts for the treatment, monitoring, and cleaning of the system, and any other aspects of water treatment and control. An illustration of levels of service to expect from water treatment companies can be found here Legionella Control Association.

Legionella Risk Asessment

Legionella risk assessment

Identify Your Risks – Preventing Exposure

Legionella Testing


Get Fast Results For Your Suspected Legionella Samples

Legionella Treatment Remediation


Ensuring Safety Of Your Water Plant & Services

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