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Barry Sclater, Head of Energy Support, Mabbett

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Energy compliance is a legal and operational priority for organisations managing commercial and public buildings. At Arthian, we provide specialist energy compliance consultancy to help you meet regulatory requirements, reduce energy consumption, and improve sustainability performance across your estate.

Expert Energy Compliance Support for Commercial and Public Buildings

Whether you manage a single site or a nationwide portfolio, our consultancy-led approach ensures your buildings are compliant, efficient, and future-ready. We support all major UK energy compliance requirements, including:

  • TM44 Air Conditioning Inspections
  • Energy Performance Certificates (EPCs)
  • Display Energy Certificates (DECs)
  • Minimum Energy Efficiency Standards (MEES)
  • Building Energy Compliance Assessments

TM44 Air Conditioning Inspections

Stay Compliant with Mandatory TM44 Reports


If your building has air conditioning systems with a combined output over 12kW, you are legally required to undertake a TM44 inspection every five years. These inspections assess the efficiency of your systems and identify opportunities to reduce energy use and carbon emissions.

Arthian provides:

  • Accredited TM44 inspections
  • Portfolio-wide scheduling and compliance tracking
  • Actionable reports with energy-saving recommendations
  • Our consultants ensure your systems are compliant and optimised for performance.

Energy Performance Certificates (EPCs)

Understand and Improve Your Building’s Energy Rating

An Energy Performance Certificate (EPC) is required when a building is constructed, sold, or let. It provides a theoretical energy efficiency rating from A (most efficient) to G (least efficient).

We offer:

  • EPC assessments for commercial and public buildings
  • Strategic advice on improving EPC ratings
  • EPC portfolio management for landlords and asset managers

EPCs are also essential for meeting MEES requirements and demonstrating energy performance to stakeholders.

Display Energy Certificates (DECs)

Operational Energy Ratings for Public Buildings

Display Energy Certificates (DECs) are required for public buildings over 250m² that are regularly accessed by the public. Unlike EPCs, DECs reflect actual energy usage over a 12-month period.

Arthian’s DEC services include:

  • Standard and Extended DEC assessments
  • Energy audits and improvement planning
  • Multi-site DEC coordination and compliance tracking

We help public sector clients meet their obligations while using DECs as a tool for continual improvement.

Minimum Energy Efficiency Standards (MEES)

Ensure Lettable Properties Meet Legal Energy Thresholds

Under the MEES regulations, landlords must ensure that commercial properties meet a minimum EPC rating of E before they can be let. Non-compliance can result in financial penalties and restrictions on tenancy agreements.

Our MEES consultancy includes:

  • EPC improvement planning and implementation
  • Risk assessments across property portfolios
  • Guidance on exemptions and enforcement

We help landlords protect asset value and maintain legal compliance.

Building Energy Compliance Assessments

Holistic Reviews for Strategic Energy Management

Beyond individual certificates, Arthian offers full building energy compliance assessments to help organisations understand their obligations and identify opportunities for improvement.

These assessments include:

  • Review of all applicable energy regulations
  • Portfolio-wide compliance mapping
  • Strategic recommendations for energy efficiency and cost savings

Ideal for facilities managers, estates teams, and sustainability leads, our assessments provide clarity and direction for long-term compliance.

Why Choose Arthian for Energy Compliance Consultancy?

  • Multi-service expertise across all major UK energy regulations
  • Portfolio-wide support for commercial and public buildings
  • Accredited assessors and experienced consultants
  • Strategic insight to turn compliance into opportunity
  • Flexible delivery tailored to your organisation’s needs

Get Started with Energy Compliance

Whether you’re responding to a regulatory deadline or planning long-term improvements, Arthian is here to help. Our energy compliance consultancy ensures your buildings are legally compliant, operationally efficient, and aligned with your sustainability goals.

Contact us today to arrange a consultation and take the first step towards full energy compliance.

To find out more about how Arthian can work with you, please get in touch.

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