Engineer-led water hygiene and Legionella services across Hertfordshire.
From risk assessment to remedial works, AP Environmental delivers complete water safety services in-house — never subcontracted. One accountable team for property owners and facilities managers who need it done properly.
What we do
A complete water hygiene service, delivered in-house
We combine assessments and hands-on mechanical works under one team — so findings get fixed, not just reported.
Legionella Risk Assessments
ACoP L8 and HSG274-compliant risk assessments for hot and cold water systems, with prioritised written recommendations.
Learn moreWater Sampling & Laboratory Testing
Legionella sampling and microbiological analysis, with chain-of-custody handling and engineer-led result interpretation.
Learn moreCold Water Storage Tank Cleaning & Disinfection
Tank inspection, sediment removal, chlorination and disinfection certification, verified with post-clean sampling.
Learn moreTemperature Monitoring & Compliance Programmes
Routine temperature monitoring, written schemes of control and logbook management to demonstrate continuous compliance.
Learn moreSystem Flushing & Chemical Treatment
Pre-commission cleaning, inhibitor dosing and ongoing closed-system water treatment to protect heating and chilled plant.
Learn moreMechanical & Plumbing Remedial Works
In-house remedials: dead-leg removal, TMV servicing, shower descaling and pipework modifications by qualified engineers.
Learn moreWhy AP Environmental
One accountable team for water safety
Most water hygiene providers split assessments and remedial works between subcontractors, leaving the building owner to coordinate. We do both — directly, with qualified engineers — so you get a single point of accountability from inspection through to fix.
More about our approachEngineer-led
Directly qualified engineers on every job — assessments and remedials, never subcontracted.
Single accountability
Findings, fix, and verification handled by the same team.
Local team
Hertfordshire-based engineers who know the area and respond quickly.
Transparent reporting
Clear written reports, prioritised actions and no hidden costs.
Fast turnaround
Pragmatic scheduling for facilities teams managing live buildings.
Built for partnership
We work to ongoing contracts, not one-off transactions.
Sectors
Trusted across regulated environments
Care Homes
Vulnerable residents, TMV-controlled outlets and complex hot water systems make care homes a high-risk environment under HSG274 Part 2.
Education
Schools and universities face seasonal low-use periods and large distribution networks — both significant Legionella risk factors.
Healthcare
Clinics, dental practices and care settings must meet stringent water safety expectations alongside ACoP L8 duty-holder responsibilities.
Hospitality
Hotels and serviced apartments combine variable occupancy, large hot water demand and outlets used infrequently between guests.
Commercial Offices
Multi-tenant offices, calorifiers and cooling systems require structured monitoring and clear duty-holder accountability.
Residential Property Management
Managing agents and freeholders carry duty-holder responsibility for communal hot and cold water systems in residential blocks.
What clients say
Built on long-term partnerships
"AP Environmental took over our Legionella programme last year and the difference is night and day. Risk assessments are clear, remedials are handled by the same team, and we always know where we stand."
Sarah M.
Facilities Manager · Care Home Group
"What sets Andy and the team apart is that findings actually get fixed. No chasing subcontractors, no finger-pointing — one team from assessment through to sign-off."
David R.
Estates Lead · Independent School
"Reliable, responsive and genuinely knowledgeable. Our monitoring is consistent, paperwork is in order, and residents have had zero issues since we brought AP Environmental on board."
Lisa T.
Property Manager · Residential Blocks
Need a Legionella risk assessment or remedial works?
Speak to our engineers about a compliance plan tailored to your portfolio.