Domestic Legionella Risk Assessments - £50.00 inc vat

What Is Legionella?

Legionnaires’ disease is caused by Legionella bacteria infecting your lungs. It's usually caught by breathing in small droplets of contaminated water. The infection isn't contagious and can't be spread directly from person to person.

Providing Cardiff & South Wales with landlords & homeowners legionella risk assessments set at fixed prices, which are set out below to leave you with peace of mind and no hidden charges when the invoice comes in.


We can even organise the access of carrying out the legionella risk assessment with the tenant's taking away the stress of organising access from the landlord.



Landlords Responsibility


Landlords of residential accommodation have responsibilities for combating legionnaires' disease. Health and safety legislation requires that landlords carry out risk assessments for the Legionella bacteria which cause legionnaires' disease and thereafter maintain control measures to minimise the risk.



What Is Legionnaires' Disease?


Legionnaires' Disease is a pneumonia like illness caused by the legionella bacteria and can be fatal. The infection is caused by breathing in small droplets of water contaminated by the bacteria. The disease cannot be passed from one person to another.

Legionella bacteria are found in the natural environment and may contaminate and grow in water systems, including domestic hot and cold water systems. They survive low temperatures and thrive at temperatures between 20 - 45°C if the conditions are right. They are killed by high temperatures at 60°C or above.



How Is It Tested?


The risk assessment process includes a site survey of the water system, during this time the engineer will identify whether the water is stored or on demand depending on the type of system installed within the property. Particular areas of risk include water tanks, dead legs and shower heads. Particular attention is also given to the hot and cold water temperatures to insure the required temperatures are achieved.



What Is The Cost Of A Landlord's Legionella Risk Assessment?


For a domestic legionella risk assessment we charge a fixed price of

  • £50.00 inc vat - Cardiff, Barry, Penarth, Newport, Radyr & Caerphilly

This includes an onsite assessment of the property, check of the hot and cold water system in place, temperature control and a digital written report of the assessment.



What If There Is A Problem Found During The Assessment?


If there is a issue found upon carrying out the legionella risk assessment, we will incorporate it onto the digital report and log our findings, we will then advise of a cost to correct any faults.



Brief Description Of What Happens On A Legionella Risk Assessment


A legionella risk assessor will attend site and carry out a survey this will include the following...


  • Trace all pipework configurations and water sources
  • Identification and inspection of all site assets
  • Water Temperatures taken across the whole site
  • System materials checked to ensure compliance with WRAS (The latest water fitting regs)
  • Control scheme recommendation against identified risks
  • Photography of all identified risks
  • Detailed description of all risks and recommendations and how to overcome them



Upon completion of your legionella risk assessment the document is typed up and issued electronically and a copy posted out to the site address, this will include:


  • Certification of Risk Assessment 
  • Recommendation summary outlining risk areas/appliances
  • Summary of findings and recommendations for review
  • Overall Risk rating with our unique scoring system
  • ​Asset reports for future monitoring of the entire system


Area's We Carry Out Legionella Risk Assessments


  • S.Wales
  • Cardiff 
  • Newport
  • Barry
  • Penarth
  • Caerphilly
  • Radyr


How Do I Make A Booking For A Legionella Risk Assessment?


The easiest way to make a booking is to compelete the online form below, so we can insure all the information we need for you is correct, if you want us to arrange access with the tenant (if rented), just provide us with their phone number and we will do so, and just keep you informed of the booking along the way. You can also email us or phone us to make a booking.


Phone: 02922 218411




Thompson Services

Landlords Legionella Reports


Fixed price

£50.00 inc vat


Booking Availability


Engineers work 8am-5pm

Evenings & Saturdays possible depending on availability.



Monday - Friday

(Exact time of inspection will be confirmed after booking)


Engineer availability


(Depending on engineer availability.)



Domestic landlords/homeowners legionella assessments

  • Boiler and tanks (if applicable)
  • Shower heads and all outlets inspected
  • Temperature recording of all outlets




Fixed Price - £50.00 inc vat


Legionella risk assessment & Gas safety certificate


(price based on both being carried out at the same time)




Fixed Price - £80.00 inc vat


Digitally Accessible Legionella Report PDF Version sent via email.


We keep back-ups of all reports for 12 months and can re-send at any time free of charge.


Annual reminders sent each year.

(Annual legionella report reminders are sent 2-3 weeks before the renewal date, via email, text and a letter.)



Included within the price










Legionella Risk Assessment, Gas Safety Certificate & Boiler Service.



(when carried out at the same time)


£96.00 inc vat

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Thompson Services Heating, Plumbing and Bathroom's 21 Miskin Street, Cathays, Cardiff, CF24 4AQ