
Refrigerant Leak Detection in London & the M25
If you need refrigerant leak detection, our team provides commercial support across London and the M25, with engineers who work on refrigerant systems in busy, occupied premises.
Officially RegisteredLeaks can be water or refrigerant. Both need to be traced to the source, whether that is a blocked drain, failed pump, damaged coil or leaking joint. Sharing the make, model and a photo of the rating plate in advance helps the engineer arrive prepared.
This page explains what refrigerant leak detection involves, the faults and checks we commonly deal with, how we work on commercial sites, and what you need to know about compliance before booking.
About Refrigerant Systems
Refrigerant services include leak detection and repair, recovery, evacuation, recharging, F-Gas leak checks and support moving equipment to lower-GWP refrigerants.
A system short of refrigerant has a leak; topping up without finding it wastes money and harms the environment, so leak location and repair always come first.
What Refrigerant Leak Detection Includes
Every visit is scoped to the equipment and the problem in front of us. For refrigerant leak detection, the work typically includes the following, with any extra work explained and agreed before it goes ahead.
- Leak tracing
- Drain and pump checks
- Refrigerant leak detection
- Repair and verification
Common Refrigerant System Problems We Deal With
Most call-outs for refrigerant systems come down to a handful of recurring issues. Recognising them early helps you report the fault accurately and reduces downtime.
- Gradual loss of cooling
- Iced pipework
- Low pressure trips
- Leaking joints or coils
- Low refrigerant charge
- Oil marks on pipework
Checks Our Engineers Carry Out
A proper visit goes beyond fixing the obvious symptom. Depending on the equipment and the agreed scope, the engineer will check:
- Recovery and evacuation
- Correct charge by weight
- F-Gas records
- Electronic leak detection
- Pressure testing
- Joint and coil inspection
Businesses We Support
We work with supermarkets, cold rooms, pub cellars, plant rooms and many other commercial premises across London and the M25. We understand that equipment often has to be worked on while you are trading, so we plan visits to minimise disruption and keep areas clean and safe.
Multi-site operators and facilities managers can group equipment into one maintenance schedule, with consistent records across sites.
Compliance, F-Gas and Record Keeping
Work on refrigerant circuits must be carried out by engineers holding the appropriate F-Gas certification, and systems containing fluorinated gases above the relevant threshold need periodic leak checks with records kept by the operator. For food businesses, reliable chilled and frozen storage also supports your food safety management system: chilled food in England must generally be kept at 8°C or below, with many operators targeting 5°C or below, and frozen food is normally held at −18°C or colder.
After the visit you receive a record of the work carried out, readings taken where relevant and any recommendations, which you can keep with your maintenance and compliance documents.
How to Book Refrigerant Leak Detection
Booking is straightforward and we keep you informed at each stage.
- Report: Describe where and when it leaks.
- Trace: The source is located and tested.
- Repair: The cause is fixed and checked.
Why Businesses Choose Us for Leak Repair
Our approach is simple: turn up prepared, diagnose properly, explain the options clearly and record the work. That keeps repeat visits down and gives managers the information they need to budget for maintenance and replacements.
We also provide commercial gas safety certificates, catering equipment servicing and air conditioning work, so sites with several types of plant can deal with one contractor for planned visits and compliance paperwork across London and the M25.
Planning Ahead: Repair, Maintain or Replace?
Not every fault justifies a repair. Where refrigerant systems are old, use a refrigerant that is being phased down, or keep failing, the engineer will tell you honestly whether a repair is good value or whether planning a replacement makes more sense. Age, energy use, parts availability and the cost of downtime all feed into that decision.
For equipment worth keeping, a planned maintenance schedule matched to how hard it works is usually the most cost-effective way to avoid emergency call-outs and keep running costs down.
Engineer Tip
Keep F-Gas logbooks up to date; they help show compliance and spot recurring leaks.
Keeping a simple log of temperatures, alarms and faults also makes diagnosis faster and helps spot patterns before equipment fails.
Related Services
Frequently Asked Questions
Do you cover refrigerant leak detection across London and the M25?+
Yes. We support commercial premises throughout London and the surrounding M25 area. Tell us the site postcode and the equipment details and we will confirm availability.
How quickly can an engineer attend?+
Response depends on engineer availability and location. Urgent faults that put stock or operations at risk are prioritised, and we will give you a realistic attendance time when you call.
Will I get a quote before work starts?+
Yes. The engineer explains the findings and any recommended work. Additional repairs or parts are agreed with you before they go ahead.
Are your engineers F-Gas certified?+
Refrigerant work is carried out by engineers holding the appropriate F-Gas certification, and refrigerant quantities and leak checks are recorded as required.
Do you work on all makes of refrigerant systems?+
We work on most commercial makes and models. Share the make and model when you book so we can confirm and prepare for the visit.
Book Refrigerant leak detection
Send the make, model and the problem so we can send the right engineer.