Air Conditioning, Ventilation and Refrigeration
TM44 Inspection
If your commercial building has an air conditioning system with a total cooling output of 12kW or more, a TM44 inspection is a legal requirement.
Inspections must be carried out every five years by an accredited energy assessor under the Energy Performance of Buildings (England and Wales) Regulations 2012. Buildings without a valid report face a fixed penalty of £300.
Robinsons Facilities Services arranges TM44 air conditioning inspections for commercial buildings across Yorkshire and the Humber, using accredited energy assessors who will inspect your system, identify any issues, and issue a full compliance report.
Pricing from £350+VAT
Prefer to speak to someone? Call 01423 226578 →
A TM44 inspection is a statutory assessment of a commercial air conditioning system’s performance and energy efficiency. Required every five years under the Energy Performance of Buildings (England and Wales) Regulations 2012, it applies to any system with a combined cooling output of 12kW or more. Buildings without a valid inspection report face a fixed penalty of £300.
What is a TM44 inspection?
A TM44 inspection is a statutory assessment of a commercial air conditioning system’s performance and energy efficiency. The inspection is named after CIBSE’s TM44 guidance document, which sets out the methodology assessors must follow. Its primary focus is energy use: whether the system is sized correctly for the space it serves, how efficiently it operates, and what improvements could reduce energy consumption.
The requirement to carry out TM44 inspections was introduced through the Energy Performance of Buildings (England and Wales) Regulations 2012, implementing the EU Energy Performance of Buildings Directive. Responsibility sits with the owner or operator of the building.
Who needs a TM44 inspection?
A TM44 inspection is required if your commercial building has an air conditioning system with a combined cooling output of 12kW or more. This includes:
- Multi-unit systems where the total output across all units reaches 12kW
- Systems installed in offices, retail premises, warehouses, healthcare buildings, schools, and other commercial properties
- Any system that has not been inspected within the last five years
Landlords, employers, and building owners all carry responsibility for compliance. If you are unsure whether your system meets the threshold, speak to our team and we can advise.
What does a TM44 inspection cover?
The inspection assesses the overall performance and condition of your air conditioning system. A qualified, accredited energy assessor will examine:
- Refrigeration and air-moving equipment — condition, operation, and maintenance levels
- System sizing — whether the installed capacity is appropriate for the space it serves
- Ductwork and units — internal condition where accessible
- Controls and settings — how the system is being managed and whether adjustments could improve efficiency
- Assessor records — name, accreditation, and inspection details retained for compliance purposes
The assessor will also review any recent maintenance records and consider the overall operational context of the system.
The TM44 inspection report
At the end of the inspection, you receive a formal TM44 air conditioning inspection report. This document is your compliance record and remains valid for five years. It includes:
- Assessor name and accreditation details
- The system’s current efficiency rating
- Any faults identified, with recommended actions
- Equipment maintenance assessment
- Controls and settings review
- A comparison of installed system size against the actual cooling load
The recommendations in the report are not legally binding, but implementing them will typically reduce energy costs and extend the working life of the system. We can discuss carrying out any recommended works through our Quoted Works service.
How a TM44 inspection works
Step 1: Confirm your system details
We’ll confirm the system type, total cooling output, and any access requirements. Then, we’ll agree a time that minimises disruption to your operations. The assessor will need access to plant, indoor units, and any maintenance records, so it helps to have someone available on site who can assist with access.
Step 2: On-site inspection
An accredited energy assessor attends your premises and carries out a thorough inspection of the system in line with the TM44 methodology. The inspection is typically completed in a single visit.
Step 3: Report and recommendations
You receive your full TM44 air conditioning inspection report, including the assessor’s findings, efficiency rating, and any recommended actions. This serves as your compliance record for the next five years.
Pricing from £350+VAT
The cost of a TM44 inspection depends on the size, type, and complexity of your air conditioning system. For smaller systems, inspections typically start from around £350+VAT. Larger or more complex systems, or sites with multiple units, will be priced accordingly. Contact us for a free, no-obligation quote.
Prefer to speak to someone? Call 01423 226578 →
Why use Robinsons Facilities Services for your TM44 inspection?
Robinsons Facilities Services arranges TM44 inspections for commercial buildings across Yorkshire and the North of England.
All inspections are carried out by qualified, accredited energy assessors with experience across a wide range of commercial and industrial system types.
- Inspections scheduled to minimise disruption to your operations
- Full TM44 compliance report issued at the end of the inspection
- Follow-on works quoted separately if improvements are identified
If you have a Planned Preventative Maintenance (PPM) and Compliance contract in place, TM44 inspections can be incorporated into your schedule alongside other compliance services.
If you need a one-off inspection, our Quoted Works service provides a straightforward route to get the report you need.
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TM44 Inspection FAQs
A TM44 inspection assesses the energy efficiency and overall condition of your air conditioning system. The assessor examines the refrigeration and air-moving equipment, checks whether the system is appropriately sized for the space it serves, reviews ductwork and unit condition, and evaluates the controls and settings. A full report is issued at the end, identifying any faults and recommending improvements.
Any commercial building with an air conditioning system that has a combined total cooling output of 12kW or more requires a TM44 inspection. This applies to offices, retail premises, warehouses, schools, healthcare buildings, and other commercial properties. Responsibility for arranging the inspection sits with the building owner, landlord, or operator.
TM44 inspections must be carried out every five years. This applies to any system with a cooling output above 12kW. The report issued at the end of the inspection is your compliance record and remains valid for five years from the date of the inspection.
Only an accredited energy assessor can carry out a TM44 inspection and issue a valid report. Robinsons Facilities Services arranges inspections through qualified, accredited energy assessors with experience across a wide range of commercial system types.
A TM44 inspection report is valid for five years from the date of the inspection. Your next inspection must take place within that five-year period to remain compliant.
TM44 inspection costs typically range from around £350 to over £1,000 depending on the size, type, and complexity of the system. Sites with multiple air conditioning units or more complex systems will be priced accordingly. Contact our team for a free, no-obligation quote based on your specific system.
Commercial premises without a valid TM44 inspection report are subject to a fixed penalty of £300. If you fail to produce a valid report within seven days of a request from an enforcement authority, a further £200 fine applies. Keeping your report up to date is the straightforward way to avoid both penalties.
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Uncover the necessity of TM44 inspections for AC systems. An essential requirement for businesses prioritising energy efficiency and compliance.
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