Modern healthcare and public-service estate at dusk

Healthcare & Public Sector

Reduce Public Estate Energy Costs While Protecting Critical Services

Engineering, energy intelligence and compliance support for healthcare and public estates where resilience, safety, comfort and value for money must be maintained.

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Critical services · Estate-wide evidence · Practical action

£MillionsEnergy savings identified

75%+Recommendations implemented

100%ESOS Phase 3 compliance delivery

50+ yearsCombined consultancy experience

The operating reality

Critical estates cannot simply turn energy use down.

Hospitals, health facilities and public buildings combine long operating hours, critical environments, ageing assets and constrained capital programmes.

Ventilation, heating, cooling, hot water, lighting and specialist systems support services while estates teams manage reliability, backlog and compliance.

Zerith identifies operational improvements, validates investment priorities and helps target limited resources—reducing cost without weakening resilience or service delivery.

HEALTHCAREPatient care always comes first

Every improvement and investment needs to support operational resilience without compromising patient safety, infection control or clinical services.

PUBLIC ESTATEPublic money should deliver value

Compliance, operational performance and Net Zero can form part of one coordinated estate strategy, strengthening the knowledge of existing estates teams.

SHAREDOne evidence-led approach

Both estate types need practical priorities, safe operating conditions and investment decisions grounded in building and service context.

Healthcare and public-estate challenges

Why public-estate energy performance is difficult to control.

Explore a pressure to see how it can affect energy cost, resilience and value for money.

Estate costPer service
deliveredResilience & value

Select an estate pressureChoose one of the five pressures to see why energy, service continuity and investment decisions need to be considered together.

Where we look

Focus on the systems that materially affect cost and service.

Combining engineering review, operating data and discussion with clinical, operational and estates teams helps define safe, practical opportunities.

Building controls

BeMS strategies, schedules and overrides

Review building management system strategies, schedules, sensors and overrides against actual service hours and environmental requirements.

The question: are schedules and control strategies aligned with the building’s real operation?

Healthcare building interior representing public-estate operations

Engineering evidence · Service context

The aim is to prioritise low-risk operational improvements, planned upgrades and longer-term investment—based on evidence and service needs.

Healthcare and Public Sector solutions

Specialist expertise matched to the decisions you need to make.

Connect engineering insight, compliance evidence and estate context to a practical next step.

01 / ENGINEERING

Building performance

Improve controls, HVAC and plant performance while protecting safe conditions and continuity of service.

Explore performance services

02 / COMPLIANCE

Energy and compliance

Coordinate statutory and organisational requirements with clear evidence and actionable recommendations.

Explore energy compliance

03 / PORTFOLIO

Portfolio energy management

Improve visibility and governance across hospitals, community buildings and wider public estates.

Explore portfolio management

04 / INVESTMENT

Net Zero and investment

Shape phased, credible heat and carbon plans around backlog, funding, assets and service requirements.

Explore Net Zero planning

Discuss Your Estate

ZECO estate intelligence

Turn fragmented public-estate data into prioritised action.

ZECO provides a structured view to help teams move from reporting to priorities—supporting informed review, not replacing engineering judgement.

Benchmark sites and systems by function, operating hours and relevant estate context.
Identify baseload, schedule drift and unusual consumption patterns for investigation.
Bring transparent evidence to improvement, investment and funding discussions.
Reuse verified information across compliance, performance and decarbonisation planning.

Discuss ZECO for Your Estate

Surface patterns for teams to review and investigate in operational context.

Bring site, system and operating context into a structured portfolio view.

Review evidence and priorities to support planning and investment discussions.

Delivery models

A model built around your public-estate team.

Choose the balance of internal ownership and specialist support that suits your estate, capability and priorities.

01 / END-TO-END SUPPORT

Fully outsourced

Explore this model

Zerith manages the programme from assessment and analysis through prioritisation, implementation support and verification, working with your estates and service teams.

02 / YOUR TEAM LEADS

Client-led

Explore this model

Your internal team leads delivery, using ZECO and Zerith’s specialist support to strengthen analysis, consistency and quality assurance.

03 / SHARED RESPONSIBILITY

Hybrid

Explore this model

Internal teams manage routine activity while Zerith supports complex engineering, modelling, compliance and investment decisions.

Expertise and trust

Engineering evidence, translated into measurable outcomes.

Independent expertise. Practical outcomes.

Zerith combines more than 50 years of collective consultancy experience with practical support across building performance, energy compliance, estate management and Net Zero planning.

The team brings CIBSE Low Carbon Consultant capability, ESOS Lead Assessor expertise, CIBSE Heat Network Consultants, ISO 50001 assessor capability and IES VE Level 3, 4 and 5 modelling.

Recommendations are considered against critical environments, resilience, governance, budget constraints and the needs of healthcare and public services.

CIBSE Low Carbon Consultant capability

Low-carbon consultancy capability to support engineering review and energy improvement planning.

ESOS Lead Assessor expertise

ESOS assessment support aligned with the organisation’s qualifying status and operational needs.

CIBSE Heat Network Consultants

Specialist support where heat networks form part of an estate’s energy and engineering context.

ISO 50001 Accredited Assessor

Assessor capability to support energy management system review and evidence.

IES VE Level 3, 4 and 5 modelling

Advanced modelling capability to help examine scenarios and support planning decisions.

Public healthcare building exterior within a wider public estate

Estate insight · Engineering evidence

Technical evidence translated into service-aware priorities.

Frequently asked questions

Clear answers for complex estates.

Can improvements be made without compromising critical environments?

Assessment and recommendations are developed with the relevant safety, clinical, environmental and service requirements in view. Potential actions are reviewed against those constraints before they are prioritised.

Can you work across mixed public estates?

Yes. The approach can consider hospitals, health facilities, community buildings and other public estates, while recognising that building function and operating hours differ.

Do you support building management system optimisation?

Yes. Review can include strategies, schedules, sensors and overrides alongside plant, HVAC and ventilation performance.

Can findings support capital or funding decisions?

Evidence can help compare opportunities, phase priorities and support investment discussions. Funding eligibility and outcomes depend on the specific programme and project.

Can internal estates teams lead delivery?

Yes. Client-led and hybrid models allow internal teams to lead routine delivery while Zerith provides specialist analysis, engineering review and quality assurance.

Discuss your estate

Where is your public estate carrying avoidable energy cost?

Start with a focused discussion about critical requirements, estate pressures, available data and the systems most likely to merit attention.

Discuss Your Estate