Air-con system inspection (TM44)
- Legal requirement
- Fixed price
- Recurring
The short answer
Mandatory inspection of larger systems
- Price from
- £250.00
- Time on site
- 2 to 4 hours
What you get
You receive a TM44 report that identifies ways to improve the efficiency of your air conditioning system and highlights any compliance issues.
When do you need an Air-con system inspection (TM44)?
You must book this if your total cooling capacity reaches 12kW or more.
- Renew your report every five years
- Check new buildings within three months
- Include all units in the building
- Cover offices, shops and large warehouses
- Follow the law to avoid fines
What happens on the day
An accredited assessor will visit to see how your cooling system performs.
- Survey all cooling equipment onsite
- Review your service records and logs
- Check controls match building needs
- Inspect system size and age
- Note the maintenance quality
- Produce a full energy report
How to prepare
- Find your recent maintenance logs
- Locate all indoor and outdoor units
- Gather technical data sheets for equipment
- Check your previous TM44 report date
- Ensure safe access to the roof
- Notify staff about the site walk
- Have your F-Gas records ready
- Clear space around the main controllers
How to improve your result
- Clean filters every three months
- Set thermostats to 24 degrees
- Keep outdoor units free of leaves
- Fix any refrigerant leaks immediately
- Upgrade old units for better efficiency
Why it is useful day to day
Regular inspections keep your monthly energy bills much lower.
- Spot inefficient units early
- Lower your carbon footprint
- Extend the system's working life
- Avoid fixed penalty fines
- Improve staff comfort and airflow
Why we ask these questions
This check helps you understand if your system is the right size.
- Why is it law?
- Does it save money?
- What are the fines?
- How often is it required?
- Who can perform the survey?
Frequently asked questions
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