- 0203 811 8331
- office@tm44.uk
- EC1V 2NX, 128 City Road London
Free TM44 KW Checker
Check If Your Building May Need a TM44 Inspection
Not sure whether your air conditioning system falls under TM44 regulations? Use our quick TM44 kW Checker to enter your building type, number of air conditioning units, estimated cooling capacity and last inspection status.
- A first-time TM44 inspection
- A renewal because your report has expired
- A cooling capacity check
- Further advice from a TM44 assessor
Full TM44 Requirement Checker
Check Your TM44 Position in Minutes
Enter your building, air conditioning and report details below. The checker gives a practical indication of whether your building may need a first TM44 inspection, renewal or assessor review.
Understanding Your TM44 Result
What Your TM44 Checker Result Means
The TM44 kW Checker gives a practical first indication based on the information you entered. It does not replace an accredited TM44 assessor, but it helps you understand whether your building may need a TM44 inspection, renewal or further capacity review.
High Risk: Action Required
A high-risk result usually means your building has strong indicators that TM44 applies—especially if your cooling capacity is over 12kW, your report has expired, or you have never had an inspection.
- Book a TM44 inspection or renewal
- Prepare your AC asset list or F-Gas register
- Confirm the number and type of AC systems
- Request a fixed quote from TM44.uk
Unclear: Review Recommended
An amber result means your compliance position needs checking. This often happens when the total kW capacity is unknown, the AC setup is mixed, or the previous report status is unclear.
- Check the kW rating on each unit
- Confirm if a previous TM44 report exists
- Send your details for expert review
- Do not assume exemption without evidence
Lower Risk: Keep Evidence
A lower-risk result suggests TM44 may be less likely based on your answers, but you should still keep clear records if your commercial building has air conditioning close to the 12kW threshold.
- Keep cooling capacity records
- Recheck if more AC units are installed
- Confirm report dates if you already have one
- Ask TM44.uk if you are unsure
Why the 12kW Threshold Matters
TM44 inspections apply to qualifying commercial buildings where the combined effective rated output of air conditioning systems is over 12kW. This can include several smaller split systems added together, not just one large central system.
If you are unsure how to calculate your cooling capacity, visit our What Is a TM44 Inspection? guide or request help through our TM44 quote form. We can review your building type, unit count, and system layout before arranging an inspection.
If your building already has a report, you can also check the public record using our TM44 Register page. If no valid report exists, or your previous report is older than 5 years, you will need to arrange a renewal.
Useful TM44 Pages
These pages help users move from checking requirements to booking, learning, and confirming compliance.
Need a Confirmed TM44 Answer?
Send your checker result to TM44.uk. We will review your building details, confirm your exact compliance position, and provide a fixed quote where an inspection is required.
TM44 Checker FAQ
TM44 kW Checker Questions
These FAQs explain how the TM44 kW Checker works, what the 12kW threshold means, and what to do if your result suggests that a TM44 inspection may be required.
What is the TM44 kW Checker?
The TM44 kW Checker is a quick online tool that helps commercial property owners, facilities managers and tenants understand whether their air conditioning system may fall under TM44 inspection requirements. It reviews details such as building type, number of AC units, cooling capacity and existing TM44 report status.
Does the checker confirm if I legally need a TM44 inspection?
No. The checker gives a practical first indication only. A qualified and accredited TM44 assessor should confirm the final requirement. If your result is high risk or unclear, you can send your details through the TM44 inspection quote form for review.
Why does the 12kW air conditioning threshold matter?
TM44 inspections generally apply when the combined effective rated output of air conditioning systems in a commercial building is over 12kW. This can include several smaller split units added together. If you are unsure about the total capacity, check our TM44 inspection guide or ask us to review your AC details.
What if my building has never had a TM44 inspection?
If your commercial building has qualifying air conditioning over the 12kW threshold and has never had a TM44 inspection, it may need a first-time TM44 assessment and report lodgement. The best next step is to gather your AC unit list, postcode and building details, then request a fixed quote from TM44.uk.
What if my TM44 report has expired?
TM44 inspections are generally required every 5 years for qualifying systems. If your previous report is older than 5 years, your building may need a renewal. You can also use our TM44 Register page to understand how TM44 reports are checked and recorded.
What information do I need to use the checker properly?
The most useful information is your building type, postcode, number of air conditioning units, system type, estimated total cooling capacity in kW and whether you already have a TM44 report. If you have an F-Gas register or AC asset list, that can help us quote more accurately.
Can multiple small air conditioning units trigger TM44?
Yes. TM44 is based on the combined effective rated output of the air conditioning systems, not only one individual unit. Several small split systems can add up to more than 12kW, which is why offices, clinics, restaurants, gyms and retail units often need checking.
What should I do after getting a high-risk checker result?
If the checker gives a high-risk result, send your details to TM44.uk so we can review the building and provide a fixed inspection quote. You can start from the Get Quote page or contact us through the TM44 contact page.
Still Unsure About Your TM44 Position?
Send us your building and air conditioning details. We can check whether a TM44 inspection is likely to be required and provide a fixed quote where needed.
Get a Fixed TM44 Quote