Improving Building Performance Through Better Air Conditioning Management

As temperatures and energy costs continue to rise, the efficiency and compliance of air conditioning systems in non-domestic buildings have never been more important. Yet many system owners remain unaware about their statutory obligations for air conditioning inspections (commonly referred to as TM44, Air Conditioning Inspection Reports, or ACIRs).

What do the regulations require?

Under the Energy Performance of Buildings (England & Wales) Regulations, any air conditioning system with an effective rated output over 12 kW must be inspected by an accredited energy assessor every five years. These inspections assess system efficiency, identify faults, evaluate controls, and recommend improvements.

Historically, the non-compliance fine was around £300, with an additional penalty (approx £200) for failing to supply a valid report when requested. However, recent proposals are pushing for stricter enforcement and a new fine of £800 for non-compliance. Elmhurst supports this move, emphasising that consistent enforcement, not just higher penalties, is key to improving compliance and energy performance across the sector.

The Opportunity: For Building Owners and for Assessors

For building owners, a valid ACIR isn’t just about compliance, it’s about efficiency and value. Regular inspections can identify opportunities to cut energy costs, lower carbon emissions, and avoid financial penalties. In light of potential future amendments to MEES regulations, poor air conditioning performance could have a direct effect on EPC ratings and subsequently the ability for a building to be let.

For assessors, this creates a timely opportunity to expand their expertise. Many Non-Domestic Energy Assessors (NDEAs) are now choosing to upskill and deliver air conditioning inspections alongside EPCs, helping clients stay compliant while diversifying their own income streams.

How Elmhurst are supporting the industry

Elmhurst’s approach is centred on improving the quality and consistency of air conditioning inspections across the UK and supporting the inspectors that work in this area. By providing both training and accreditation, we ensure assessors gain the confidence, knowledge, and tools to deliver inspections that genuinely improve building performance and energy efficiency. This support continues well beyond qualification through our accreditation scheme, access to intuitive software, expert technical guidance, and continuous professional development.

The Level 4 Air Conditioning Energy Assessment training, delivered online over six days, develops practical skills and understanding of how systems operate, why they underperform, and how improvements can be identified. Once accredited, assessors benefit from Elmhurst’s software, technical guidance, insurance, and CPD, all designed to support professional standards and ongoing competence.