Commercial Air Conditioning Maintenance

Planned, SFG20-scheduled air conditioning maintenance for commercial and industrial sites across London, Hampshire, Surrey and Sussex. Installing a system isn’t enough - regular servicing is what keeps it efficient, compliant and running when you need it.

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01420 566822

Commercial air conditioning maintenance is the planned, SFG20-scheduled servicing of AC systems - filters, coils, refrigerant charge and controls - that keeps them energy-efficient, F-Gas compliant and reliable. Rossair has serviced commercial air conditioning across London, Hampshire, Surrey and Sussex since 1973.

1973
In trade since (52+ years)
Twice-yearly
SFG20 service standard
15-30%
Extra energy used by neglected AC
4-hour
Emergency response under contract

Whether you manage an office, retail store, or industrial facility, maintaining a stable and comfortable indoor climate is crucial for employee productivity, customer satisfaction, and equipment efficiency. However, simply installing an air conditioning system isn’t enough. Regular air conditioning system maintenance is the key to ensuring optimal performance, longevity, and energy efficiency.

Over time, air conditioning units accumulate dust, dirt, and general wear and tear. Without proper maintenance, these issues can lead to decreased efficiency, higher energy bills, and even costly breakdowns. Here’s why keeping your system in top condition is vital:

Why Regular Air Conditioning System Maintenance is Essential

  1. Energy Efficiency & Cost Savings - A well-maintained air conditioning system runs more efficiently, using less energy to cool your space. Blocked filters, clogged coils, and refrigerant leaks all force the system to work harder, increasing operational costs. Regular servicing helps prevent these inefficiencies, saving money on energy bills in the long run.
  2. Prolonged System Lifespan - Investing in a commercial air conditioning system is a significant financial commitment. Without routine maintenance, wear and tear can shorten its lifespan, leading to premature replacements. By scheduling professional maintenance, you can extend the life of your system, protecting your investment.
  3. Minimising Downtime & Emergency Repairs - The last thing any business wants is a sudden air conditioning failure, especially during peak summer months. Emergency repairs can be costly, not to mention the disruption they cause to your operations. Routine maintenance helps identify potential issues before they become major problems, ensuring continuous operation and minimal downtime.
  4. Improved Air Quality - Poor air conditioning maintenance can lead to a buildup of dust, allergens, and bacteria within the system, affecting indoor air quality. This can cause health issues such as allergies, respiratory problems, and general discomfort for employees and customers. Regular servicing ensures clean filters and proper airflow, promoting a healthier indoor environment.
  5. Compliance with Regulations & Sustainability Goals - Many businesses now prioritise energy efficiency and environmental sustainability. Regular maintenance not only ensures compliance with regulations but also supports sustainability initiatives by reducing unnecessary energy consumption and carbon emissions. At Rossair, we follow industry best practices, including SFG20 guidelines, to ensure your system operates efficiently and aligns with your business’s sustainability objectives.

What Does Professional Air Conditioning Maintenance Include?

At Rossair, we offer comprehensive air conditioning system maintenance services tailored to your specific requirements. Our expert engineers carry out detailed inspections, preventive measures, and necessary adjustments, including:

  • Filter Cleaning & Replacement - Ensuring optimal airflow and indoor air quality.
  • Refrigerant Level Checks - Preventing inefficiencies and potential system failures.
  • Coil & Duct Cleaning - Enhancing cooling efficiency and reducing strain on components.
  • Electrical & Mechanical Inspections - Identifying early signs of wear and tear.
  • System Performance Testing - Ensuring all components function correctly and efficiently.
  • 24/7 Emergency Callouts - Immediate support in case of unexpected breakdowns.

Air conditioning maintenance in Hampshire, London and Surrey

Rossair runs commercial air conditioning maintenance from two bases: our Hampshire HQ in Alton and our London office in Aldgate. Hampshire is our densest coverage area — see our air conditioning maintenance Hampshire page — and our F-Gas certified engineers cover London, Surrey and Sussex under the same SFG20 schedule. Multi-site clients are supported UK-wide. For wider building services, see commercial HVAC maintenance; for breakdowns, see commercial air conditioning repair (24/7).

Why Choose Rossair for Air Conditioning System Maintenance?

With over 50 years of experience in the HVAC industry, Rossair has built a reputation for excellence, reliability, and cost-effective service. We provide expert air conditioning system maintenance across London, Hampshire, Surrey, and Sussex, ensuring businesses stay cool and operational all year round.

  • Expert Engineers - Our highly trained professionals have the knowledge to service a wide range of air conditioning systems.
  • Customised Maintenance Plans - Tailored services to suit your business needs and budget.
  • Fast Response Times - We understand downtime is costly, so we act swiftly to keep your systems running smoothly.
  • Sustainability-Focused - Helping businesses achieve energy efficiency and net-zero goals.

Schedule Your Maintenance Service Today

Don’t wait for a breakdown to think about air conditioning maintenance. A proactive approach saves money, improves efficiency, and ensures uninterrupted operation. Get in touch with Rossair today to discuss a tailored maintenance plan for your business.

Quick facts

Air conditioning maintenance - the facts

The standards, frequencies and statutory obligations behind a Rossair PPM contract.

Service
Commercial air conditioning system maintenance
Frequency
Twice-annual standard; quarterly for high-use sites
Schedule basis
SFG20 task grades C/D/E
F-Gas leak checks
Annual / 6-monthly / quarterly per CO2e charge
Emergency cover
24/7 callout under PPM contract
Coverage
London, Hampshire, Surrey, Sussex, UK-wide
Engineers
F-Gas certified, Gas Safe and NICEIC registered
In trade since
1973 (52+ years)
Offices
Alton (HQ), London (Aldgate)
Telephone
01420 566822
After every visit
24-hour job report
Frequently asked

AC system maintenance - common questions

How often should commercial air conditioning be serviced?
Commercial air conditioning should be serviced twice annually as standard - once before peak summer cooling demand (spring) and once before peak heating demand for heat pump systems (autumn). High-use environments like restaurants, server rooms and retail need quarterly. SFG20 sets the specific tasks for each visit.
What does an air conditioning service include under SFG20?
An SFG20 air conditioning service includes: filter clean/replace, evaporator coil check and clean, condenser coil clean, refrigerant level check under F-Gas, electrical safety check and tightness test, condensate drain clear, control validation, performance test against design spec, and a service report. Frequency and depth scale with the SFG20 task schedule - typically C/D/E grade tasks across the year.
When is F-Gas leak testing required?
F-Gas leak testing requirements scale with refrigerant charge: systems containing 5 tonnes CO2 equivalent or more require annual leak checks; 50+ tonnes require checks every 6 months; 500+ tonnes require quarterly checks. Most commercial split and VRF systems fall into the annual category. Leak detection records have to be kept for 5 years and presented on request to the Environment Agency.
How long does an air conditioning service take?
A standard SFG20 service on a single split system takes 1-2 hours per indoor unit including filter clean, coil check and refrigerant inspection. A VRF system with 20 indoor units takes a full day. Rossair schedules services to avoid disruption - early morning, evening or weekend visits where the site can’t afford downtime. The 24-hour job report follows every visit.
What does poor air conditioning maintenance cost a business?
Three real costs: (1) energy waste - dirty coils and clogged filters increase electricity consumption by 15-30%; (2) statutory exposure - missing F-Gas records carry fines and prosecution risk under F-Gas legislation; (3) catastrophic breakdown - emergency callouts during a heatwave cost 3-5x routine work plus business interruption. Rossair’s PPM packages bundle prevention into a predictable annual cost.
Do you provide commercial air conditioning maintenance in Hampshire?
Yes. Rossair’s head office is in Alton, Hampshire, so Hampshire is our densest coverage area for commercial air conditioning maintenance. F-Gas certified engineers service split, VRF and chiller-based air conditioning across Hampshire on the same SFG20-scheduled contracts we run in London, Surrey and Sussex, with a 24-hour job report after every visit.
Which areas do you cover for air conditioning maintenance?
Rossair covers London, Hampshire, Surrey and Sussex for commercial air conditioning maintenance, and supports multi-site clients UK-wide. The Alton (Hampshire) HQ and London (Aldgate) office dispatch F-Gas certified, Gas Safe and NICEIC-registered engineers under twice-yearly SFG20 servicing.

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