Warmer weather ahead: Are your air conditioning systems compliant and optimised for the summer?

With temperatures beginning to rise and summer just around the corner, organisations across the UK are preparing their buildings and facilities for increased cooling demand.

However, while many organisations focus on maintaining comfort for staff and visitors, an important compliance and energy efficiency requirement is often overlooked – TM44 air conditioning inspections.

As energy costs remain a significant concern for organisations, ensuring cooling systems are running efficiently has never been more important. Poorly maintained or inefficient air conditioning systems can lead to significantly increased operating costs, unnecessary energy consumption, and avoidable carbon emissions, particularly during the warmer summer months when systems are under greater strain.

What is a TM44 inspection?

TM44 inspections are a legal requirement for buildings with air conditioning systems that have a combined cooling output greater than 12kW. These inspections must be carried out every five years by an accredited assessor and are designed to ensure systems are operating efficiently and not wasting energy.

Many organisations are unaware that multiple smaller units within a building can collectively exceed the 12kW threshold, meaning TM44 compliance are often overlooked. Offices, retail spaces, healthcare settings, educational facilities, hotels, and warehouses are among the many premises that may require inspection.

With rising energy costs and increasing pressure to meet sustainability targets, understanding how your air conditioning systems are operating is more important than ever. A TM44 inspection not only helps organisations remain compliant but can also identify practical improvements that support both cost savings and carbon reduction goals.

The benefits of TM44 compliance

Beyond meeting legal obligations, TM44 inspections can deliver a range of operational benefits, including:

• Identifying opportunities to reduce energy consumption
• Improving system efficiency and performance
• Lowering running costs during peak summer usage
• Supporting sustainability and net zero objectives
• Extending the lifespan of HVAC equipment
• Reducing the risk of non-compliance penalties

Proven results through TM44 inspections

With summer demand approaching, now is an ideal time for organisations to review whether their TM44 inspection is up to date and ensure their air conditioning systems are prepared for warmer months ahead.

Zenergi has already helped organisations across multiple sectors identify significant energy savings, improve system performance, and reduce operational costs through TM44 air conditioning inspections.

Our recent case studies highlight the measurable impact businesses and schools can achieve through proactive energy management:

• Achieved annual savings of more than £61,000 with immediate return on investment following a TM44 air conditioning inspection
• Identified energy savings exceeding 25% for Chem Fields Primary Academy through improved system efficiency
• Helped Westbrook Lane Primary School reduce air conditioning operating costs by 50%

These examples demonstrate how TM44 inspections can go beyond compliance, delivering tangible financial and sustainability benefits for organisations of all sizes.