Commercial property managers and business owners across Mitcham, Morden, and Wimbledon could be experiencing a wave of changes as far as environmental regulations are concerned. More specifically, rules around fluorinated greenhouse gases (F-gases), which are used in air conditioning and refrigeration systems, are due a revamp this year.

These substances, while highly effective as refrigerants and common in various business applications, have a substantial environmental impact when released into the atmosphere. If your business operates in the commercial air conditioning industry, or you have deployed a large commercial or industrial heating and cooling system (perhaps as part of a new fit-out or renovation), these regulatory updates are worth noting. Understanding and complying with the latest F-gas regulations protects your business from hefty fines while contributing to broader environmental goals. 

The short version is that the updated F-Gas framework is designed to accelerate the phasing out of high global warming potential (GWP) refrigerants in these systems. However, some may be unfamiliar with F-gases and the rules governing their presence, much less what has changed.

What are F-gases and why do they matter?

F-gases are synthetic chemicals used primarily in refrigeration, air conditioning, heat pumps, and fire suppression systems. Common examples include hydrofluorocarbons (HFCs) like R410A and R134A. These exhibit excellent thermodynamic performance, but from an environmental perspective, they are substantially more potent than carbon dioxide, which ironically gets most of the attention in environmental discussions.

The UK’s updated F-Gas Regulations (the set of rules designed to reduce fluorinated greenhouse gas emissions) exemplify the country-wide effort in aligning these products with environmental goals. For business owners, the simple takeaway is that certain refrigerants will become more scarce and restricted in the coming months and years. 

Key F-gas regulation changes 

Last year, in 2025, new updates stipulated that:

• New split systems under 3kg charge can’t use refrigerants with GWP over 750.
• Servicing existing systems with GFCs over 2,500 GWP is no longer allowed, unless the system uses reclaimed or recycled gas.
• Accurate service records for all systems above 5 tonnes CO2 equivalent must be kept.
• New commercial installations must use low-GWP refrigerants where applicable.

The phase-down schedule has intensified. By 2030, the UK is expected to cut F-gas emissions by two-thirds, with these changes representing a pivotal step towards those goals.

Commercial property owners and managers in these areas should be particularly aware of these changes as far as servicing, maintenance, and record-keeping are concerned. As F-gas certified technicians at Climachill rightly state, “The foundation of any efficient air conditioning system is regular professional servicing.” That said, when it comes to maintaining cooling commercial systems in 2026, more stringent attention and scrutiny will be necessary.

Your F-gas compliance checklist

• Conduct an audit of all HVAC and refrigeration equipment on-site.
• Document the type and quantity of each refrigerant in every system, including GWP values.
• Confirm that your current maintenance provider holds relevant F-gas accreditation
• Review and improve record-keeping processes and systems that track all activities related to refrigerant usage (e.g., installation and service dates, top-up levels, leak checks, decommissioning, etc.)
• Schedule regular leak detection checks in accordance with your specific system requirements. Commissioning prompt, professional inspections and repairs will prevent unnecessary refrigerant wastage and help avoid compliance violations.
• Consider system upgrades or replacements before supply constraints make high-GWP refrigerants expensive or widely unavailable. Contemporary systems using low-GWP typically deliver better energy performance, which is enticing for environmentally-conscious businesses.
• Explore available schemes, grants and tax incentives which can potentially offset upfront costs of upgrading to environmentally-friendly equipment. The Department for Energy Security & Net Zero provides information on current funding options for business owners.

Current and future considerations

Waiting until your incumbent system fails is likely going to be the most distressing outcome for business owners, particularly if they rely on refrigerant cooling or air conditioning day to day. Being issued with a regulatory fine is not exactly much better. This is why a proactive approach provides clarity and peace of mind; assess the lifespan and workability of your existing equipment, budget for necessary upgrades, and schedule installations before seasonal peaks to minimise disruption.

Consider the wider implications of your upgrades. Not only will you be complying with the new standards and regulations, but you’ll also end up with better energy savings, a more stable and reliable system, and set yourself apart from competing businesses who fail to act accordingly. Initial investments in upgrades invariably pay for themselves through reduced operational costs, extended equipment lifespan, and minimal repairs.

The most salient point is that consulting qualified specialists in this area – who understand the technical and regulatory requirements – will be the best course of action. Tailored guidance will help you make informed choices on products, equipment and installations, ensuring you meet current and new standards, while protecting your business from potential enforcement action. 

Delaying action on F-gas compliance carries real risks. Certain products won’t be available forever, and as such, some equipment or machinery won’t be available to service properly as supplies dwindle. Businesses can still be subject to fines for non-compliance even if they’re in the process of transitioning, so be mindful.

In the long run, however, commercial properties that demonstrate environmental responsibility with F-gas usage will stand to benefit substantially, attracting quality tenants, customers and partners who take sustainability seriously. Those that act now in an act of forward thinking will be making strides in strengthening brand and business reputation while safeguarding against future regulatory uncertainty.

Are you planning on helping businesses in Merton and the surrounding area achieve environmental goals or get more out of their refrigerant products, but aren’t sure how to communicate your advice, ideas and recommendations? I (Chloe Miller) help businesses communicate effectively on topics like sustainability, the environment, construction, and more. I would be more than happy to discuss how I can elevate your content and strike an emotional chord with your readers.

[Image Source: Deposit Photos]