TM44 Air Conditioning Inspection

We provide a nationwide Air Conditioning Inspection service following the TM44
inspection guidelines.

What is the TM44 Air Conditioning Inspection?

The TM44 Air Conditioning Inspection includes a visual assessment and an examination of the equipment and controls. Ultimately, inspecting assesses whether the system is safe and in good working order. It also pinpoints areas for improvement. If improvements are possible, then we will provide recommendations. Most importantly, applying the changes after the inspection helps you save money in the long term by improving the system’s efficiency and cost-effectiveness.

TM44 Air Conditioning Inspection

Legal Requirements and Penalties

Local authorities enforce the requirements relating to Air Conditioning Inspection reports. Failure to commission, keep, or provide an Air Conditioning Inspection report when you are required by the regulations means you may be issued a penalty charge notice.

Getting your Air Conditioning System inspected is a legal requirement. Unfortunately, there are consequences if you don’t follow suit. Air Conditioning inspections are required every five years. Failure to comply will result in a £300 fine. 

For further information, see the attached PDF of the CLG Regulations or visit

Systems Requiring a TM44 Air Conditioning Inspection

All air conditioning systems with an effective rated output of more than 12kW must be assessed by an Accredited Air Conditioning Inspector. Additionally, certificates require production via the CLG software report production tool. That’s because lodgement on the Government Landmark Database is mandatory.

Do you need an Air Conditioning Inspection?

All air conditioning systems with an effective rated output of more than 12kw must be regularly inspected by a Non-Domestic Energy Assessor (NDEA). The regulations require the first inspection for:

  • All air conditioning systems first put into service on or after 1 January 2008
  • For other air conditioning systems, where the effective rated output is more than 250kW the first inspection must happen by 4 January 2009

What equipment is covered by our inspection?

Our Air Conditioning Inspections cover the refrigeration and air movement equipment that is part of air-conditioning systems and their controls. All of this is as per the TM44 Air Conditioning Inspection guidelines.

Our Accreditations 

DCEC Ltd holds many industry accreditations from governing bodies. We ensure you will receive a trustworthy service from skilled and experienced professionals.

Elmhurst Energy Approved
Engineering Council
IENG Incorporated
CIBSE Certified

DCEC Ltd is proud to be: Elmhurst Energy Approved, Engineering Council Registered, Incorporated Engineer (IEng) Registered, and a member of the Chartered Institution of Building Services Engineers.

For air conditioning inspections, contact us with confidence on 01954 201 692 or 07905 845 586 or email us at


Use the form or contact us now with confidence on 01954 201 692 or 07905 845 586 or email us at for more information and a No Obligation Nationwide Quote.

By submitting this form you are consenting to your details being processed in accordance with our privacy policy

David Clayton Ltd