TM44 Air Conditioning Inspections
At ENCOM Energy Compliance Consultancy Limited, we provide fully compliant, high-quality TM44 Air Conditioning Inspections for commercial and public sector buildings. Whether you’re a portfolio investor, landlord, managing agent, NHS Trust, public transport organisation, or local authority, we ensure your air conditioning systems meet current legal obligations, perform efficiently, and minimise environmental impact.
What is a TM44 Inspection?
TM44 Air Conditioning Inspections (ACIs), also known as an Air Conditioning Energy Assessment, is a legal requirement under the Energy Performance of Buildings (Certificates and Inspections) Regulations (England & Wales).
If your air conditioning system has an effective rated cooling output of more than 12 kW, or several smaller units whose combined capacity exceeds that threshold, TM44 legislation applies. These inspections must be carried out every five years by an accredited assessor.


Purpose & Benefits
Assess whether the air conditioning system is appropriately sized and operating efficiently for the space it serves.
Inspect how well the system is maintained, its controls, and usage patterns, including reviewing maintenance records and ensuring compliance with F-Gas and refrigerant handling regulations.
Identify faults, inefficiencies, or opportunities for upgrade or optimisation. Recommendations may include adjustments to control settings, system reconfiguration, or replacement where necessary.
Reduce energy consumption, operational costs, and carbon emissions, while maintaining comfort and compliance.
Legal Requirements & Responsibilities
Inspections must be undertaken by a qualified, accredited energy assessor from a recognised scheme.
Reports must be lodged on the Government’s Energy Performance of Buildings Register (TM44 register).
Non-compliance can result in enforcement action and financial penalties.
The person in control of the system (owner, building manager, or designated operator) is legally responsible for arranging the inspection, retaining the report, and handing it over if control changes. In practice, these duties often apply to both landlords and tenants. For example, in a multi-tenanted office building which is air conditioned by the centralized HVAC system, the landlord will typically be responsible for commissioning the TM44 inspection of the main HVAC plant, whilst tenants are required to arrange separate TM44 inspections for any additional air conditioning equipment they have installed and operate within their demised areas, as these will not be covered by the landlord’s TM44 assessment.
What Our TM44 Service Offers?
Our TM44 service includes surveys conducted by fully qualified Level 4 air conditioning inspectors, with comprehensive site inspections that cover all types of HVAC equipment, controls, and supporting systems.
During the survey, we will review maintenance records, assess F-Gas compliance, and evaluate equipment sizing in relation to the areas served. Following the inspection, we provide a detailed report lodged on the government register, setting out findings, recommendations, and clear cost-benefit guidance for improvements.
We would also offer practical advice on remedial works, upgrades, and optimisation strategies to help reduce running costs and emissions, while supporting clients in planning ahead for future regulatory changes and ensuring long-term compliance.
Why Choose ENCOM?
We are trusted experts in energy compliance, having been involved since the legislation was first introduced in 2009, with TM44 Air Conditioning Inspections forming a core part of our services. Our experience spans a wide range of sectors, from retail, industrial, and office buildings to NHS Trusts, transport organisations, and extensive property portfolios. By working proactively with our clients, we not only help them meet their legal obligations but also deliver tangible savings through reduced energy bills, extended system lifespans, and strengthened sustainability credentials.
Complying with TM44 isn’t just about avoiding fines—it’s about making your buildings smarter, cleaner, and more cost-efficient. ENCOM is here to simplify compliance and deliver lasting value.
Contact Us
ENCOM Energy Compliance
Consultancy Limited
1 Priestley Drive, Tattenhoe Park
Milton Keynes, MK4 4NW