National HVAC and Water Manager

OCS Group; Greater London; Remote; GBP 90,000 - 130,000; Full time

Job summary

OCS UK & Ireland is seeking a National HVAC & Water Manager to provide strategic leadership and governance for HVAC, water hygiene and building environmental systems across a national retail portfolio. You will define engineering strategy, assure supplier delivery and drive asset performance to support resilience and customer experience.

In this senior role, you will lead standards, lifecycle planning and capital planning while overseeing seasonal readiness programmes (Fit for Summer and Fit for

Qualifications

• Significant multi-site HVAC or building services experience.
• Knowledge of commercial HVAC systems and BMS; ACOP L8 and HSG274 compliance.
• Experience managing outsourced service providers and governance.

Responsibilities

• Develop and maintain the long‑term HVAC and water strategy across the national retail portfolio.
• Establish portfolio‑wide standards, engineering policies and maintenance philosophies.
• Provide strategic direction on asset reliability, compliance, operational resilience and energy performance.
• Lead continuous improvement programmes and act as the senior subject matter expert.
• Own delivery of seasonal readiness programmes (Fit for Summer and Fit for Winter).
• Coordinate suppliers, specialists and the National Mobile Team to deliver readiness plans.
• Lead pre‑season inspections, technical reviews and preventative maintenance programmes.
• Provide strategic direction for HVAC and water activities delivered through the National Mobile Team.

Skills

HVAC management

Water hygiene

Building services

Stakeholder management

Governance frameworks

Tools

BMS

ACOP L8

HSG274

Job description

About The Role

Working Hours: Monday to Friday 08:00 - 16:30

Location: Home based with national travel

Job Purpose

The National HVAC & Water Manager provides strategic leadership, technical governance and portfolio-wide performance oversight for HVAC, water hygiene and building environmental systems across a large national retail portfolio.

The role is accountable for defining engineering strategy, assuring supplier delivery, driving asset performance and leading national improvement programmes that support operational resilience, compliance, energy efficiency and customer experience. Acting as the senior authority, the position brings together service partners, specialist contractors, support functions and the National Mobile Team to ensure consistent standards, effective governance and optimum asset performance across stores, distribution centres, offices and ancillary properties. The role owns annual Fit for Summer and Fit for Winter programmes and serves as the principal advisor for HVAC engineering, water hygiene compliance, asset strategy, lifecycle planning, sustainability and business continuity.

Knowledge, Skills & Experience

• Significant experience managing HVAC, water hygiene or building services across large multi-site portfolios.
• Knowledge of commercial HVAC systems, BMS, ACOP L8 and HSG274 requirements.
• Experience managing outsourced service providers and governance frameworks.
• Excellent stakeholder management, influencing and reporting skills.

Responsibilities

Strategic Leadership & Portfolio Performance

• Develop and maintain the long‑term HVAC and water strategy across the national retail portfolio.
• Establish portfolio‑wide standards, engineering policies and maintenance philosophies.
• Provide strategic direction on asset reliability, compliance, operational resilience and energy performance.
• Lead continuous improvement programmes and act as the senior subject matter expert.

Seasonal Readiness & Business Resilience

• Own delivery of annual Fit for Summer and Fit for Winter programmes.
• Coordinate suppliers, specialist contractors and the National Mobile Team to deliver seasonal readiness plans.
• Lead pre‑season inspections, technical reviews and preventative maintenance programmes.

National Mobile Team & Specialist Support

• Provide strategic direction for HVAC and water‑related activities delivered through the National Mobile Team.
• Coordinate national engineering support during major incidents and critical asset failures.

Asset Strategy & Lifecycle Planning

• Own HVAC and water asset strategies across the portfolio.
• Develop lifecycle plans based on condition, age and operational risk.
• Support capital investment planning, replacement programmes and refurbishment projects.

Supplier Governance & Performance Management

• Lead strategic relationships with service providers.
• Monitor supplier performance against KPIs and contractual commitments.
• Challenge underperformance and drive corrective action plans.

Compliance & Assurance

• Oversee HVAC and water‑related statutory compliance activities.
• Lead technical assurance reviews and audit programmes.
• Assure maintenance partners are delivering against legal obligations and technical standards.

Water Compliance, Government & Risk Management

• Own the portfolio‑wide water management strategy and governance framework.
• Provide strategic oversight of water hygiene compliance activities delivered by specialist service providers.
• Ensure compliance with ACOP L8, HSG274, Water Regulations and legionella management requirements.
• Oversee legionella control programmes, temperature monitoring, sentinel outlet testing, water sampling, tank inspections, calorifier inspections, flushing programmes, TMV servicing and water treatment programmes.
• Maintain oversight of water quality performance, microbiological sampling results and corrective action plans.
• Lead water compliance assurance audits and coordinate remediation activities relating to legionella risks and failed samples.
• Drive continuous improvement initiatives to reduce water‑related risk and improve compliance performance.

Stakeholder Management

• Serve as the senior HVAC and Water representative within executive governance forums.
• Provide strategic recommendations on asset investment and portfolio risk.
• Present performance, risk and improvement plans to senior leadership teams.

Success Measures

• Successful delivery of Fit for Summer and Fit for Winter programmes.
• Portfolio asset uptime and operational availability.
• Legionella compliance performance.
• Compliance with flushing, temperature monitoring and sampling programmes.
• Reduction in water‑related risk exposure.
• Compliance and audit performance across the estate.
• Energy and carbon performance improvements.
• Cost avoidance, value creation and operational efficiencies.

Positioning Statement

The National HVAC & Water Manager is the strategic leader responsible for HVAC performance, water hygiene governance and asset strategy across a national retail portfolio. Through technical governance, seasonal readiness planning, supplier assurance, compliance oversight, asset optimisation and lifecycle management, the role ensures building environmental and water systems support operational resilience, customer experience and long‑term portfolio performance.

About The Company

OCS UK & Ireland is a leading facilities management company with 50,000+ colleagues and a turnover in excess of £2bn. We deliver innovative, award‑winning services within facilities management, hard services, cleaning, security and catering.

Our mission is to make people and places the best they can be for our colleagues, customers and the communities we serve. Our commitment to doing business the right way is rooted in our TRUE values - Trust, Respect, Unity, and Empowerment.

Why Work for OCS

Award‑Winning Employer: Ranked 36th on Glassdoor’s Best Companies to Work For 2025 — we value and motivate our people.

Digital Learning: The OCS Academy offers digital courses and resources to help you build skills and grow your career.

Retail Perks: With our Hapi app, you can gain access to exclusive discounts, rewards and wellbeing resources.

Professional Growth: 600+ live learners across UK I — Empowering colleagues with further development and qualifications!

Flexible Pay: Access a portion of earned wages before payday with our Wagestream App! (Contract Specific)

We are an equal opportunities employer and rely on a diverse workforce with a broad range of knowledge, skills, and backgrounds to deliver our goals. We offer an inclusive and welcoming environment and actively encourage applications from all individuals regardless of race, gender, nationality, religion, sexual orientation, disability, or age.