If your building has an air conditioning system over 12kW, a TM44 inspection isn’t just a legal formality it’s your ticket to better energy performance and long-term savings. But the question most businesses ask first is, how much will it cost?

Let’s break it down.

What Is a TM44 Inspection?

A TM44 inspection is a statutory energy assessment for air conditioning systems. It’s required every five years for buildings in the UK where the total installed system exceeds 12kW.

These inspections are all about improving efficiency and identifying waste helping businesses cut bills, reduce emissions, and stay compliant with government regulations.

So, What Does a TM44 Inspection Cost in the UK?

Costs vary depending on:

• The number of units and system size
  
  
• The type of building (office, retail, industrial)
  
  
• The level of inspection (Level 3 or Level 4)
  
  
• Location and ease of access
  
  

 Quick Guide:

Site Type

Typical TM44 Cost (excl. VAT)

Small premises (1–2 units)

£250 – £450

Medium-sized site (3–5 units)

£500 – £800

Large/complex buildings

£900 – £1,500+

Level 4 inspections (which involve complex systems like chillers or air handling units) are more detailed and priced accordingly.

Why It’s Worth the Investment?

A TM44 inspection isn’t just about ticking boxes. Done properly, it can:

• Highlight energy-saving opportunities of up to 30–40%
  
  
• Prevent costly equipment breakdowns
  
  
• Keep your business compliant and avoid fines (up to £300 per offence)
  
  
• Boost your Energy Performance Certificate (EPC) ratings
  
  

In short: you might pay a few hundred now, but you could save thousands over time.

 What’s Included in the Price?

With trusted providers like Gradwell Group Ltd, your TM44 inspection includes:

• A site visit from an accredited energy assessor
  
  
• Full inspection of your cooling system (indoor and outdoor units)
  
  
• Energy efficiency recommendations
  
  
• Issuance of a compliant TM44 certificate
  
  
• Help with record keeping in case of audits
  
  

Bonus: You’ll also get guidance on reducing operational costs and extending equipment life.

Why Choose Gradwell Group?

Here’s why hundreds of businesses across the UK trust us with TM44 inspections:

• Fast turnaround: Quotes within 24 hours, reports in 3–5 days
  
  
• UK-wide coverage: From London to Leeds, Birmingham to Bristol
  
  
• Specialist support: Our assessors are ABBE qualified and highly experienced
  
  
• One-stop shop: We also handle air tightness testing, SAPs, BREEAM surveys, and more
  
  

Explore our full building compliance services:

FAQ’s

How often do I need a TM44 inspection?

Every 5 years and it’s your responsibility as a building owner or manager.

Who can carry it out?

Only accredited energy assessors can issue valid TM44 certificates.

What happens if I skip it?

You could face fines of up to £300 per offence. Local authorities are increasingly cracking down on non-compliance.

Ready to Get Started?

 You manage a small retail unit or a corporate HQ, Gradwell Group can help you stay compliant and save energy. Get a quick quote today and let’s make your building smarter, greener, and regulation-ready.

Call us or visit our TM44 Inspection Page to get started.

Trusted Sources

For more about the legal side of TM44, visit:

• UK Government: TM44 inspection rules
  
  
• CIBSE Guidance on TM44
  
  

Final Thoughts

A TM44 inspection doesn’t just help you avoid fines it helps you take control. It tells you how your cooling systems are performing, where you can save energy, and what to fix before it costs you big.

The cost? Starting from just £250. The value? Immeasurable.

Book your TM44 inspection with Gradwell Group today and make your building work smarter.

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