Many commercial property owners assume their regular HVAC servicing covers everything required for compliance and energy efficiency. Unfortunately, this misunderstanding can lead to fines, inefficiencies, and missed opportunities. In this article, we’ll explain the crucial differences between TM44 inspections and HVAC servicing—and why your building needs both.
The Basics: TM44 vs. HVAC Servicing
| Feature | TM44 Inspection | HVAC Servicing |
|---|---|---|
| Legal Requirement? | Yes (every 5 years) | No (recommended annually) |
| Focus Area | Energy efficiency & compliance | Operational reliability |
| Conducted By | Accredited TM44 Assessor | HVAC Technician |
| Includes Maintenance? | No | Yes |
| Produces Official Report? | Yes | No |
| Can Result in Fines if Missed? | Yes | No |
Why the Confusion Exists
Because both involve checking AC systems, many building managers assume one covers the other. However, the goals and methods are very different.
What TM44 Delivers That HVAC Servicing Doesn’t
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Evaluation of controls and system sizing
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Legal documentation for EPB compliance
What HVAC Servicing Delivers That TM44 Doesn’t
- Cleaning coils and filters
- Replacing worn components
- Fixing operational faults
How They Complement Each Other
- A TM44 report might recommend maintenance tasks—these are then completed during HVAC servicing
- HVAC servicing keeps your system efficient; TM44 ensures it remains legally compliant
Best Practice: The Dual Approach
To maximise performance and compliance:
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Service your AC systems at least once a year
-
Inspect under TM44 regulations every five years (or after major system upgrades)
Cost Considerations
TM44 inspections typically cost between £300–£800 depending on system size. Servicing varies by contractor but averages £150–£500 annually. Consider it an investment that often pays for itself through improved efficiency and extended system life.
Think of HVAC servicing and TM44 inspections like going to the doctor: servicing is your regular check-up, and TM44 is your in-depth diagnostic. You need both to keep your system—and your business—healthy.
Not sure if you’re covered? Contact us for a compliance check or to arrange a TM44 inspection. We offer bundled TM44 inspections and servicing plans to simplify the process and save you time.