ACI Reports has an accredited team of air conditioning energy assessors, delivering efficient and accurate TM44 inspections and reports for a wide client base. Our comprehensive service includes professional, robust, and impartial advice, legislation interpretation, and project management to ensure compliance and provide peace of mind.
TM44 Requirements: Legal Obligations
TM44 is the accepted UK guidance for assessing the efficiency and environmental impact of air conditioning units and systems. The law requires TM44 air conditioning inspections to support compliance with the Energy Performance of Buildings Directive (EPBD).
The TM44 regulations state that a registered independent energy assessor must undertake a TM44 survey. This is key to avoiding a conflict of interest, whereby a maintenance contractor would inspect their own product. Alongside inspecting the system, the air conditioning inspector should investigate how owners and managers operate, service, and maintain the system.

Our TM44 Air Conditioning Inspection Services
ACI Reports is one of the UK’s leading providers of TM44 inspections. Alongside air conditioning sustainability surveys, our specialists work closely with every client to provide the necessary supplementary support. We also provide detailed reports and independent advice to help you drive tangible energy and operating cost savings.
Our accredited air conditioning inspectors are L4 qualified, the highest level in the industry. They are strategically positioned across the UK to ensure maximum availability, wherever you are based. We will also assign you a dedicated Booking Coordinator to manage the process from end to end - ensuring reliable communication and minimal disruption to the running of your business.
Dedicated to upholding our first-class TM44 inspection standards, we manage our team through a workflow process that deals with programming, RAMS, KPIs, site issues, work permits, security, and the flow of our survey booking system.

What Does the Air Conditioning Inspection Report Include?
We log our Air Conditioning Inspection reports (ACI reports) on a government database, also known as the TM44 register, which is open for any user to access. The Department for Levelling Up, Housing and Communities (DLUHC) operates this. Thus, we ensure that all client TM44 survey reports are professional and accessible.
The TM44 inspection and ACI report will include:
- Assessment of the efficiency of the equipment
- Investigation of the effectiveness of current maintenance & operation regimes
- Evaluation of the size & appropriateness of the current system
- Any faults identified during the inspection & guidance on remedial strategies
- F-Gas testing review & advice on whether the certification is suitable for the current law
All areas of our TM44 air conditioning inspections offer recommendations for further improvement and how they can be achieved. Our specialists can also support clients with managing legislation, fines, and ISO audits.
Common Issues Found During a TM44 Inspection
With over 15 years of experience in carrying out TM44 inspection services, we have identified the most common problems with air conditioning systems:
- Incorrect settings / faulty controls
- Poor maintenance of filters & coils
- Insufficient insulation for ducts & pipework
- Refrigerant leakages
- Obsolete systems unsuitable for modern efficiency standards
ACI Reports for TM44 Inspection Services
As an independent TM44 inspector, ACI Reports is not influenced by M&E Companies who manage maintenance. You are not legally required to act on our recommendations, but implementing our suggested changes will present a genuine opportunity to improve air conditioning sustainability and save on costs in the long term.
We also know that interpreting an Air Conditioning Inspection report (ACI report) can be both tedious and daunting. This is especially the case when managing hundreds or thousands of properties, with each report ranging anywhere between 45 and 1000 pages per building.
That is why we offer supplementary added-value reporting for our larger clients, condensing a lengthy report into a single, straightforward Condition Summary Report. This includes only the facts and figures that our clients need to know, understand, and action for effective air conditioning maintenance.

TM44 Inspection Training Programme
Should anyone wish to enter the TM44 air conditioning inspections profession, ACI Reports offers an invaluable training programme for skilled M&E engineers and qualified EPC assessors through our tried and tested APEL route.
If you are considering entering the field, please note that we only train those who are willing to work for ACI Reports. We currently have availability for more TM44 survey specialists, and the pay can be an encouraging factor. Our team would be pleased to hear from you.

ACI Reports has a team of experienced energy assessors ready to carry out TM44 inspections for your air conditioning systems. Get in touch for a quotation!