Gas & Refrigerant Top-Up Services in London

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  • Free System Inspection Book a no-obligation site visit to assess refrigerant levels and identify cooling performance issues.
  • Upfront Quote at No Cost Transparent pricing for refrigerant recharge or gas refill with no hidden fees.
  • Workmanship Guarantee All AC refrigerant services come with a full warranty on parts and labour.
  • Worry-Free Cooling We help restore cooling fast so you can get back to what matters.
  • Same-Day Bookings Available If your AC is blowing warm air or not cooling properly, we’ll be there fast to get it running cold again.

What Is a Refrigerant Check and Why It Matters for Homes and Businesses in London

A refrigerant level check and gas top-up is designed to restore your air conditioner’s cooling performance without needing a long-term maintenance agreement. This visit includes checking refrigerant pressure, identifying any gas loss, and refilling the system with the correct type of refrigerant like R-410A or R-32. It’s ideal for property owners or managers who want a fast and reliable solution to weak airflow or poor cooling, especially during warm months in London.

Whether your AC is blowing warm air, cycling too often, or making unusual noises, refrigerant top-up services are a smart preventative measure. They help extend system life, avoid unnecessary repair bills, and keep your environment comfortable. For commercial sites, it also supports F-Gas compliance and prepares your system for TM44 inspections. Every visit includes a digital pressure report so landlords, facility managers, and homeowners can track refrigerant levels and stay audit-ready.

What’s Included in Our Gas and Refrigerant Level Check Service in London

Our refrigerant service is a specialised visit designed to restore your air conditioner’s cooling power through accurate gas level checks and professional refrigerant top-ups. Whether you’re managing a split system at home or maintaining ducted air conditioning in a commercial property, we make sure your unit is running at its best with the correct refrigerant pressure and no gas loss.

This service is ideal for homes, shops, offices, clinics, and hospitality venues across London that want expert refrigerant maintenance without the need for ongoing contracts.

Refrigerant Level and Pressure Check

We begin by inspecting the refrigerant pressure using digital manifold gauges, ensuring your system is charged correctly and running within the recommended superheat and subcooling range. Incorrect refrigerant levels reduce cooling efficiency and increase running costs. Our pressure testing allows us to detect undercharging or overcharging before it causes damage.

Low refrigerant levels often indicate gradual leaks or poor previous servicing. We’ll identify the issue quickly and advise on the best next step.

Leak Detection and System Integrity Inspection

Every gas check includes a full refrigerant leak inspection. Using calibrated leak detectors and UV dye if needed, we check all service ports, flare joints, valve caps, and connection points for signs of gas escape. Catching even a minor refrigerant leak early prevents costly component damage and supports F-Gas compliance.

This inspection supports commercial TM44 compliance and keeps your property aligned with UK environmental regulations.

Gas Top-Up Using Correct Refrigerant Type

If the pressure is too low and no significant leaks are present, we top up the system with the appropriate refrigerant such as R-410A, R-32, or R-134a, depending on the unit type. We follow all F-Gas regulations and ensure accurate gas weights using refrigerant scales.

The result is restored cooling performance, better energy efficiency, and fewer strain cycles on your compressor.

Cooling Performance and System Response Test

We verify that your system is cooling at the expected rate after top-up. Using digital thermometers and pressure-temperature charts, we assess supply air temperatures, airflow velocity, and compressor activity. This helps us confirm the system is operating correctly post-recharge and delivering comfort at the expected performance level.

If further performance issues are detected, such as poor airflow or temperature imbalance, we’ll advise on next steps specific to refrigerant-related causes.

Digital Refrigerant Report and Compliance Summary

After the visit, you receive a digital service record showing refrigerant pressure readings, top-up amounts, leak test results, and any faults noted during the check. This documentation is valuable for homeowners, landlords, and facilities teams needing proof of service, compliance support, or warranty recordkeeping.

We also provide written recommendations if additional work is required and will always give you clear pricing and no unexpected fees.

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Refrigerant level check and gas top-ups can restore cooling performance

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Why Businesses Choose RightAir for Refrigerant Checks and Top-Ups

Here’s why commercial properties across London rely on RightAir Solutions when cooling issues strike:

  • Over 30 years of experience delivering refrigerant-related servicing for all types of air conditioning

  • F-Gas certified engineers with REFCOM registration to guarantee full compliance and safety

  • Rapid response available across Greater London including flexible out-of-hours visits

  • Trusted on Google and Checkatrade with consistent five-star reviews from commercial clients

  • Digital refrigerant reports issued after each visit to support TM44 inspections, F-Gas logs, and asset records

Client Testimonials:

⭐⭐⭐⭐⭐ “RightAir helped us resolve a refrigerant leak and pass our TM44 inspection first time. The AC is back to full power”

⭐⭐⭐⭐⭐ “Fast, professional and precise. They caught a low gas issue we never spotted. Our shop is cool again.”

  • Refrigerant servicing designed around you
  • Improved energy efficiency through accurate gas pressure balancing
  • Certified local engineers with refrigerant handling expertise
  • On-call support when your system is not cooling properly
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Get Compliant with TM44 and F-Gas Regulations

Avoid fines and stay audit-ready with professional maintenance aligned to UK standards.

Ensure Compliance

Who Do We Work With Across London?

RightAir Solutions delivers professional gas and refrigerant level checks and air conditioning top-up services to properties across Greater London. This service is ideal for homes, offices, retail spaces, clinics, and industrial sites that need quick, compliant, and expert help with cooling issues. Whether it’s a split system, VRF unit, or multi-zone commercial setup, we restore performance by correcting refrigerant charge, improving energy efficiency, and preventing costly faults.

Office Buildings

Low refrigerant in office AC systems leads to poor airflow, employee discomfort, and energy waste. Our engineers carry out full refrigerant pressure tests and top-ups for wall-mounted, cassette, and ducted units. We work discreetly and provide detailed F-Gas compliant digital reports for facilities managers, ideal for TM44 inspections and internal maintenance logs.

Retail and Hospitality

Shops, restaurants, salons, and cafés depend on reliable cooling to keep customers happy. Refrigerant loss often shows up as warm air output, short cycling, or poor response times. We test the refrigerant circuit, check for pressure loss, and top up using the correct gas type such as R-410A or R-32. Early morning or evening slots are available so your doors stay open.

Healthcare and Clinics

Clean air and accurate climate control are essential in medical environments. Our F-Gas certified technicians check refrigerant charge and identify leaks that could impact both comfort and compliance. We support clinics, dental practices, and treatment rooms with pressure-tested gas top-ups and documented results suitable for audits and patient care standards.

Industrial Units

Factories and warehouses often run large cooling systems under high thermal load. If refrigerant pressure drops, this can reduce compressor efficiency and risk shutdown. We check gas levels in commercial-grade systems and restore optimal pressure using refrigerant recovery machines and calibrated gauges. Our visit will help maintain safe working conditions and cooling for sensitive equipment.

Schools and Universities

Educational facilities rely on consistent indoor climate control across classrooms, libraries, and offices. If refrigerant levels drop, airflow weakens and rooms become uncomfortable. Our engineers test for refrigerant loss, inspect flare joints and valves, and recharge systems during holiday periods or off-peak hours. All servicing is logged for easy access by site managers.

Why Pick RightAir Solutions for Refrigerant Services

We specialise in  refrigerant level checks and gas top-ups for air conditioning systems, delivering expert diagnostics, fast service, and trusted results. Our clients choose us for precision, transparency, and a responsive experience from the first call to the final refrigerant pressure reading.

Qualified Engineers with F-Gas Expertise

Every engineer is REFCOM registered and fully trained in handling modern refrigerants, including R-32, R-410A, and other low-GWP gases. We follow current F-Gas regulations, using calibrated tools to test refrigerant circuits, detect leaks, and restore correct pressure. Even in a single visit, we help meet legal and warranty standards.

Fast Appointments and Flexible Times

We offer same-day and next-day bookings across London. For commercial clients, we provide early morning or evening slots to avoid operational disruption. Whether your split system is underperforming or your multi-head unit is blowing warm air, we act quickly to recharge your refrigerant and bring cooling back.

Detailed Digital Reports After Every Visit

Each refrigerant service includes a digital system report, noting pressure readings, refrigerant type, any loss points identified, and the exact top-up amount used. These records are ideal for landlords, facilities managers, and TM44 assessors needing service logs and audit-ready data.

Trusted for Accuracy and Clarity

Our clients value straightforward advice, accurate diagnostics, and honest pricing. Whether it’s one AC unit or a full property, we focus on performance, safety, and customer satisfaction. With over three decades of HVAC experience, we deliver every refrigerant top-up with care and confidence.

How Our Refrigerant Service Works

Step 1: Easy Booking and System Details

You contact our team by phone or online form. We ask a few quick questions about your air conditioning system, such as unit type, refrigerant used, and location. There’s no contract involved. Just one focused visit to check your refrigerant levels and restore cooling performance.

Step 2: On-Site System Check and Setup

On the scheduled day, one of our F-Gas certified engineers arrives with full refrigerant diagnostic equipment. We visually inspect your system, locate the service ports, and set up tools like digital pressure gauges and leak detection sensors to assess the system’s refrigerant condition.

Step 3: Full Refrigerant Circuit Testing and Top-Up

We run a complete test of your refrigerant circuit, including static pressure readings, superheat and subcooling checks, and leak detection. If the gas level is low, we top it up with the correct refrigerant, such as R-410A or R-32, using precise refrigerant scales. If any issues are found, like a micro-leak or loose valve cap, we address it on-site if possible.

Step 4: Final Readings and Digital Report

Once the top-up is complete, we confirm the pressure is balanced and the system is cooling properly. You receive a digital refrigerant report that includes system readings, refrigerant weight added, and any findings from the inspection. If repairs are recommended, we’ll send a no-obligation quote so you can decide how to proceed.

How Refrigerant Servicing from RightAir Improves Efficiency

When refrigerant levels are correct, your air conditioning system works with less strain, delivers faster cooling, and uses far less energy to maintain indoor comfort. A single visit from our F-Gas certified engineers can correct low pressure, restore refrigerant charge, and bring your system back to optimal performance.

Low refrigerant can lead to longer compressor run times, reduced airflow, and unstable temperature control. By testing the refrigerant circuit, identifying any gas loss, and adding the correct amount of R-32 or R-410A, we help your system cool efficiently again. Many clients report lower energy bills almost immediately after a top-up.

Improving refrigerant efficiency also supports broader energy targets. Our refrigerant services contribute to better EPC performance, help with Net Zero planning, and reduce unnecessary load on older systems. With one visit, you make your AC cleaner, colder, and more cost-effective.

The Benefits of Refrigerant Checks and Gas Top-Ups

1. Restored Cooling Performance and Immediate Comfort

A refrigerant check and gas top-up helps your air conditioner deliver fast, even cooling again. Low refrigerant levels cause warm air output, weak airflow, and compressor overwork. Our engineers test system pressure, identify leaks, and recharge the unit using the correct refrigerant like R-32 or R-410A. Once balanced, you’ll notice more stable room temperatures and fewer interruptions, even on the hottest days.

2. Regulatory Confidence and System Safety

Every visit is performed by F-Gas certified engineers using REFCOM-compliant practices. We follow refrigerant handling laws, record all system pressures, and provide digital service reports to support your legal obligations. Whether you’re preparing for a TM44 inspection, managing leased properties, or maintaining cooling in sensitive commercial environments, our refrigerant-focused servicing keeps your unit safe and compliant.

3. Reduced Energy Waste and Better Efficiency

When refrigerant levels drop, your air conditioner runs longer and works harder, leading to energy waste and higher bills. A professional top-up corrects this by restoring correct pressure and subcooling balance, improving EER and overall system performance. Many clients see a drop in electricity usage and better cooling response almost immediately. Our service also supports Energy Performance Certificate benchmarks and helps properties move toward long-term energy goals.

What Can Happen Without a Refrigerant Check or Gas Top-Up?

Letting refrigerant issues go unchecked? Not a good move. It might seem like a small thing, but low gas levels can quietly ruin your AC system’s performance, efficiency, and lifespan. A simple refrigerant level check and gas top-up can save you a mountain of stress later.

1. Loss of Cooling and Unplanned Disruption

When refrigerant levels drop, your air conditioner loses its ability to cool properly. Systems start cycling longer, compressors overheat, and eventually, things just shut down. Offices get stuffy, retail environments lose their edge, and medical settings risk thermal instability. The fix? A fast, one-time refrigerant recharge that prevents all of this before it gets messy and expensive.

2. Poor Indoor Comfort and Complaints

Undercharged systems can’t deliver stable airflow. One minute it’s warm, the next it’s just loud but doing nothing. If you’re running a customer-facing space, this gets noticed fast. Complaints go up, especially during warmer months. Correcting gas pressure imbalances helps restore airflow and return the system to its proper cooling cycle.

3. Safety Risks and Regulatory Trouble

Skipping refrigerant servicing can lead to refrigerant leaks, pressure loss, and non-compliance with F-Gas regulations. That means possible fines, warranty voids, or worse, system failure that could’ve been avoided. If you’re prepping for a TM44 inspection, documentation of refrigerant condition is expected. We record all data during our visit, so you stay covered and compliant.

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Answers to Common Gas and Refrigerant Level Check AC Questions

If you have a question of your own, then please ask.

Not very often at all, to be honest. Air conditioning systems run on a closed refrigerant loop. If there’s no leak and the unit’s been installed properly, the gas should last the full life of the system. Most UK residential and commercial units don’t need a refrigerant top-up unless there’s a fault.

The usual signs include warm air blowing from the vents, longer cooling cycles, or higher energy bills without any change in usage. You might even notice ice forming on the pipework. These are all symptoms of low refrigerant pressure and a possible leak in the circuit.

 

It’s not a DIY job. Gas pressure testing requires proper diagnostic tools, like calibrated manifold gauges or digital sensors. And in the UK, only F-Gas certified engineers are legally allowed to handle refrigerant. Best thing to do is book a one-off visit and let us handle it safely.

That depends on your system, the refrigerant type, and how much is needed. For homes using R-32 or R-410A, a one-off gas top-up usually falls between £90 and £200. Larger systems or commercial setups may cost more. We always give a fixed price before any work is done.

 

Yes, they’re the same thing. Regassing is just another way of saying we’re topping up the refrigerant. It’s only done if your system is low and passes a leak check. We use the exact gas type your system needs and weigh it in precisely using refrigerant scales.

 

The system starts working harder and cooling less. That means higher energy costs and more wear on the compressor. If there’s a leak and it’s left untreated, it can lead to full system failure. It also puts you at risk of breaching F-Gas rules, especially if you manage a commercial property.

If the issue is low refrigerant, then yes, topping it up can restore full cooling. But if the system has a deeper fault, like a failed expansion valve or a clogged filter drier, that needs more than just gas. During our one-off service, we check the full refrigerant circuit before recharging.

If the issue is low refrigerant, then yes, topping it up can restore full cooling. But if the system has a deeper fault, like a failed expansion valve or a clogged filter drier, that needs more than just gas. During our one-off service, we check the full refrigerant circuit before recharging.

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Air Conditioning Units We Maintain In London

Daikin

A global leader in energy-efficient cooling. Daikin systems include split, multi-split, VRV/VRF, and air purification technologies — ideal for residential and large-scale commercial use.

Mitsubishi Electric

UK-produced units known for quiet operation, advanced controls, and reliable performance. Available in split systems and heat pump configurations for efficient year-round comfort.

Panasonic

Durable, smart-enabled systems with a focus on clean air and energy savings. Panasonic units include nanoe™ X air purification and app-based control.

Fujitsu

Compact, quiet, and reliable. Fujitsu offers flexible options for homes and small businesses, with inverter technology and low maintenance needs.

Trane

Robust commercial HVAC solutions built for larger properties. Known for system longevity, high performance, and energy efficiency in demanding environments.

Airedale (UK)

British-made precision cooling systems, ideal for data centres, healthcare, and critical infrastructure. Offers advanced diagnostics and climate control.

Stiebel Eltron

German-built systems combining ventilation and cooling with a strong emphasis on sustainability. Suitable for residential and commercial installations.

Plus many more

We can install and repair nearly every make and model of air conditioning units in addition to those mentioned such as J & E Hall, Andrews Sykes, Grayson Thermal Systems.

One-Off Servicing

A single visit to inspect and service your systems when needed. Ideal for businesses without a contract or with immediate issues. This flexible option covers inspection, fault finding, and minor repairs without ongoing commitment.

HVAC Servicing

Seasonal Maintenance

Targeted support during peak-use times like summer or winter. We tune systems to handle high loads, improving comfort and preventing seasonal malfunctions. Perfect for retail, hospitality, and offices with heavy seasonal demand.

Seasonal HVAC checks

Filter Cleaning & Replacement

Regular cleaning or changing of filters improves air quality and system efficiency. Dirty filters can restrict airflow and increase energy use. Our engineers ensure all filter components are clean and compliant with indoor air quality standards.

Filter Changes

Our Other Air Conditioning Services

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Planned Preventative Maintenance

People are saying good things about RightAir Solutions

Great people. Came down swiftly to repair our leaking air con. We will survive this summer because of them.
George Tan
London

Areas We Serve Across London

Central London

Mayfair

Marylebone

Fitzrovia

Soho

Holborn

Covent Garden

Bloomsbury

Westminster

Paddington

Edgware Road

West London

Kensington

Chelsea

Notting Hill

Ladbroke Grove

Holland Park

Hammersmith

Shepherd’s Bush

Acton 

Park Royal

Ealing

North West London

St John’s Wood

Swiss Cottage

Finchley Road

West Hampstead

Golders Green

Hendon

Kilburn

Queens Park

Cricklewood

North London

Highgate

Camden

Islington

South West London

Clapham

Wandsworth

Battersea

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