A properly functioning air conditioning system relies on an adequate charge of refrigerant to absorb heat from your indoor environment and dissipate it outside. When a refrigerant leak occurs, the efficiency and performance of your AC unit can be severely compromised, leading to higher energy consumption, reduced cooling capacity, and potential damage to the compressor.
Our REFCOM certified engineers specialise in identifying and rectifying AC refrigerant leaks across all types of commercial and industrial air conditioning systems throughout London and the M25. Prompt detection and repair are crucial to prevent further issues and restore your system's optimal operation.
Understanding Refrigerant Leaks
Refrigerants are contained within a closed-loop system, meaning they should not be consumed or 'used up' over time. A reduction in refrigerant levels almost always indicates a leak somewhere within the system. Leaks can range from tiny pinholes to larger breaches, often developing gradually due to vibration, corrosion, or wear and tear on components like coils, lines, and joints.
Common indicators of a refrigerant leak include a noticeable drop in cooling performance, the system running for longer periods to achieve the desired temperature, or even ice build-up on the evaporator coil. Ignoring these signs can lead to increased energy bills and, critically, irreversible damage to your system's compressor, which is often the most expensive component to replace.
Causes of AC Refrigerant Leaks
Refrigerant leaks can arise from various sources within an air conditioning system. Understanding these common causes helps in effective diagnosis and prevention strategies:
Corrosion is a frequent culprit, especially in older systems or those exposed to harsh environmental conditions, leading to pinhole leaks in copper tubing or coil fins. Vibrations from normal operation or external factors can also cause wear at joints and connections, eventually leading to cracks or loosening.
Mechanical damage, such as accidental punctures during maintenance or installation, or stress fractures in components like the evaporator or condenser coils, are also possible. Furthermore, faulty or worn-out O-rings, seals, and valves are common points of failure that can permit refrigerant to escape over time.
Our Refrigerant Leak Detection Process
Our REFCOM certified engineers employ a systematic and thorough approach to accurately locate refrigerant leaks. This process is critical, as simply recharging a leaking system without repairing the source of the leak is not only inefficient but also an F-Gas regulation violation.
Our process typically involves pressure testing the system with nitrogen, using electronic leak detectors that are highly sensitive to refrigerant gases, applying UV dye which fluoresces under ultraviolet light to pinpoint tiny leaks, and using bubble tests on accessible joints. For complex or elusive leaks, we may isolate sections of the system for more targeted testing.
The Importance of Professional Leak Repair
Attempting to top up a system without repairing a leak is a short-term, expensive, and environmentally irresponsible solution. Only a qualified, REFCOM certified engineer has the expertise and equipment to safely handle refrigerants and perform effective, lasting repairs.
Our engineers are trained to perform precise repairs, which may involve brazing or soldering damaged pipes, replacing faulty components such as coils or valves, and ensuring all connections are secure. Following the repair, the system is evacuated to remove moisture and contaminants, and then precisely recharged with the correct type and amount of refrigerant according to manufacturer specifications.
Servicing for Various System Types
We are equipped to diagnose and repair refrigerant leaks in a wide array of air conditioning and commercial refrigeration systems. Our expertise covers everything from small split systems to large VRF/VRV installations and process cooling units.
Our engineers work on equipment from all leading manufacturers. Whether you operate a single AC unit or a complex multi-zone climate control system, our professional approach ensures your equipment receives the attention it needs to operate efficiently and reliably, minimising downtime and operational disruption.
We offer comprehensive support including supply, installation, servicing, maintenance, and repair, alongside a 24/7 emergency callout service for critical issues.
Our Commitment to Compliance and Safety
As a REFCOM certified company, we adhere strictly to all F-Gas regulations governing the handling of fluorinated greenhouse gases. This commitment ensures that all refrigerant-related work, from leak detection to repair and recharging, is conducted in an environmentally responsible and legally compliant manner.
Our engineers are not only highly skilled in technical repair but also fully understand the implications of improper refrigerant handling. We prioritise the safety of your premises, your staff, and our engineers, employing best practices and appropriate personal protective equipment at all times.
Frequently asked questions
How do I know if my AC system has a refrigerant leak?
Common signs include reduced cooling capacity, the system running for extended periods, unusually high energy bills, and sometimes ice formation on the outdoor unit's lines or the indoor coil. A hissing or gurgling sound may also indicate a leak.
Is a refrigerant leak dangerous?
While most modern refrigerants are low toxicity, direct exposure to high concentrations can displace oxygen and pose a risk, especially in confined spaces. More commonly, the danger lies in the damage a low refrigerant charge can cause to your AC system's compressor, leading to costly repairs.
Can I just add more refrigerant to fix a leak?
No, simply adding more refrigerant without repairing the leak is both ineffective and a violation of F-Gas regulations. Refrigerant is not 'consumed'; if levels are low, it indicates a leak that must be found and repaired before recharging the system to the correct level.
How long does it take to repair a refrigerant leak?
The time required depends on the complexity of the leak. Simple leaks at accessible points might be fixed quickly, while elusive leaks requiring extensive diagnostics or component replacement can take longer. Our engineers aim for efficient and thorough repairs to minimise system downtime.
What refrigerants do you work with?
Our REFCOM certified engineers are trained and equipped to work with all commonly used refrigerants in commercial and industrial air conditioning and refrigeration systems, ensuring compliance with current F-Gas regulations during detection, recovery, and recharging procedures.
