Legionella Risk Assessments

Pricing is based on the number of taps in the property, not whether it’s classed as domestic or commercial, so a small shop and an equivalent-sized home are quoted the same. Our quote form has four tiers: up to 3 taps, 4-6 taps, 7-9 taps, and 9+ taps; get in touch for an exact quote for your property. Read more: DIY vs Professional Legionella Risk Assessments.

You’ll receive a written report setting out what was assessed, any risks identified (such as dead legs, incorrect temperatures, or stored water issues), and clear, practical recommendations to bring the system into compliance. It’s designed to be kept on file as evidence of compliance with HSE ACOP L8 guidance.

We assess domestic and light commercial water systems, such as houses, flats, and small shops or offices with straightforward hot and cold water supplies. We don’t cover cooling towers, evaporative condensers, or complex commercial systems typically found in hotels, care homes, hospitals, or large multi-let buildings; if your property falls into one of these categories, get in touch and we can point you toward a specialist.

Cold water should be stored and distributed below 20°C, and hot water should be stored at 60°C or higher at the cylinder and reach at least 50°C at the tap within one minute. Keeping water outside the 20–45°C range legionella bacteria thrive in is one of the main ways a system stays compliant. Read more: Water Temperature and Dead Legs.

Dead legs are sections of pipework or outlets that are rarely or never used, such as an old shower head or an unused tap. Water sitting stagnant in these sections warms to room temperature and provides ideal conditions for legionella bacteria to grow, so they’re a key focus of any risk assessment. Removing or regularly flushing dead legs is one of the most effective ways to control legionella risk. Read more: Water Temperature and Dead Legs.

Yes. Landlords have a legal duty under the Health and Safety at Work Act 1974 and the COSHH Regulations 2002 to assess and manage legionella risk in their properties, in line with HSE ACOP L8 guidance. Non-compliance can lead to enforcement action, fines, or prosecution.

The assessment examines your water system for legionella hazards, including water temperatures, storage tanks, and dead legs (infrequently used pipework), and identifies any high-risk areas. You’ll receive a written report explaining what was found and the control measures needed to keep the system compliant.