AC Planned Preventative Maintenance: Benefits and Costs

Air conditioning systems regulate temperature and support the air quality in commercial and industrial buildings. However, like any complex piece of equipment, they need regular attention to stay reliable. That is why commercial businesses invest in AC-planned preventative maintenance.

We will explain what planned preventative maintenance (PPM) for air conditioning involves and the benefits businesses get from having a service maintenance contract.

At Chillaire, we have been providing commercial air conditioning maintenance across the Midlands for over 30 years. We offer AC planned maintenance agreements and our City & Guilds qualified engineers install commercial and industrial air conditioning systems.

What is AC Planned Preventative Maintenance?

AC planned preventative maintenance is a scheduled programme of inspections, cleaning and servicing carried out on air conditioning systems. Rather than waiting for a breakdown to call an engineer, PPM identifies wear, performance loss and minor faults early so they can be fixed.

An air conditioning service visit will include:

• Cleaning and inspecting air filters, evaporator coils and airflow
• Checking and recording refrigerant levels for F-gas compliance
• Visual inspection of heat exchangers and pipe connections
• Wiring and electrical safety checks
• Inspection of insulation and pipework condition
• Testing system controls and performance
• Issuing a comprehensive service report

Most commercial systems should be serviced at least once per year as a minimum. Under current F-gas regulations set by the UK government, systems containing larger quantities of refrigerant must be checked more frequently:

• Systems with 3 kg or more of refrigerant: checked annually
• Systems over 30 kg: checked every six months
• Systems over 300 kg: checked quarterly

At Chillaire, we recommend a six-monthly maintenance visit for most commercial systems as standard, regardless of refrigerant charge. This is because twice-yearly servicing gives a far better window to catch seasonal wear and maintain energy efficiency all year round.

What Are the Benefits of Commercial AC Preventative Maintenance?

The benefits of planned preventative maintenance for air conditioning systems are straightforward, especially for commercial and industrial businesses. Systems that are regularly serviced last longer, break down less often and cost less to run. Here is a closer look at what businesses gain.

Fewer Costly Breakdowns

Unplanned air conditioning breakdowns are often more expensive than scheduled maintenance. An engineer call-out, emergency parts and the operational disruption caused by a failed system or part can exceed the annual cost of a maintenance contract. PPM reduces the likelihood of your AC system unexpectedly breaking down by catching small issues before they escalate.

At Chillaire, with our service maintenance agreement, you also gain access to our 24-hour emergency breakdown service.

Extended System Lifespan

A well-maintained commercial air conditioning system will last significantly longer than one that is forgotten about. When a system faces dirty coils, blocked filters or low refrigerant, it has to work twice as hard. This extra strain quickly wears out the compressor and other vital parts. Regular air conditioning maintenance and servicing keeps everything running as the manufacturer intended and helps protect your investment.

Lower Energy Bills

A dirty or poorly maintained AC system has to work harder to reach the same output. Keeping your system clean and correctly charged with refrigerant keeps its energy efficiency as high as possible, which directly reduces your running costs. For more on this, read our article on the energy-saving benefits of modern AC systems.

Maintained Manufacturer Warranty

Most leading AC brands, including Daikin, Mitsubishi Electric and Fujitsu, require evidence of regular servicing to honour their warranties. Skipping maintenance visits can invalidate your warranty and leave you without cover if a major component fails.

F-Gas Regulatory Compliance

Under current UK legislation, businesses are legally responsible for monitoring refrigerant levels in their air conditioning systems and maintaining accurate service records. These records can be inspected by REFCOM, the UK’s F-gas register. Non-compliance can result in penalties.

At Chillaire, our F-gas certified engineers update your service records on your behalf during every planned visit, so your compliance is always up-to-date.

Better Air Quality and Comfort

Planned preventative maintenance keeps filters and coils in an AC system clean and well-functioning, which creates better air circulation and healthier indoor air quality. For offices, warehouses and retail environments, this affects the comfort and wellbeing of the people inside. Read more about how AC systems support indoor air quality in our dedicated guide.

What Does an AC Planned Preventative Maintenance Contract Include?

A planned preventative AC maintenance contract or a service maintenance agreement is an annual arrangement that sets out a schedule of visits, what is included in each service and how emergency cover is handled.

At Chillaire, our planned maintenance agreements cover a broad range of systems, including:

• Air conditioning systems (split, multi-split and VRF)
• Air-source heat pump systems
• Boiler and chiller plant
• Ventilation and air handling units
• Gas-fired heating systems
• Close control and precision cooling systems
• Heat recovery systems
• BMS (Building Management Systems)

We tailor agreements to suit your business. Options can include call-out cover and consumables as part of the contract, giving you full cost predictability. Once a contract is set up, our team contacts you ahead of each service visit and manages the scheduling for you, so it is one less thing to think about.

On every planned visit, our engineers carry out a full inspection and functional test of all systems. Any issues found are reported back to you in writing, with clear pricing for any remedial work before anything is carried out.

Contracts automatically renew annually. In almost all cases our customers renew every year.

How Much Does Commercial AC Preventative Maintenance Cost?

The cost of AC preventative maintenance varies depending on the number and type of systems, the frequency of visits required and the level of contract cover selected.

The factors that affect pricing include:

• The number of indoor and outdoor units on site
• The type of system (split, multi-split, VRF, chiller or heat pump)
• The refrigerant charge size, which determines inspection frequency under F-Gas rules
• The level of cover required (parts, call-outs and consumables)
• Site location and access requirements

The most useful way to look at the cost is to compare it against the alternative. A single emergency breakdown call-out and repair can cost several times the annual price of a maintenance contract. When you factor in potential business disruption and the shortened lifespan of an unmaintained system, PPM almost always represents better value.

For a precise quote tailored to your site and systems, contact Chillaire for a free survey and consultation.

How Often Should Commercial Air Conditioning be Serviced?

The minimum requirement for most commercial air conditioning systems is one service per year. However, Chillaire recommends two visits per year for the majority of commercial and industrial installations. This is because:

• Systems used for cooling in summer and heating in winter experience seasonal load changes that increase wear.
• Twice-yearly visits give a much earlier window to identify developing faults.
• Six-monthly servicing is required under F-gas rules for systems over 30 kg refrigerant charge.
• Manufacturer warranties on leading brands often require documented regular maintenance.

In environments where systems run continuously or where the operating environment is demanding (such as manufacturing, food production or server rooms), more frequent visits may be needed. Chillaire will advise the right schedule based on your specific plant and usage.

For a detailed breakdown of servicing intervals and what drives them, read our article on how often you should service air conditioning units.

What are the Best Practices for AC Planned Preventative Maintenance?

Getting the most out of your planned preventative maintenance comes down to a few consistent habits and smart decisions.

Choose a Qualified, Certified Contractor

Only engineers who are F-gas certified can legally handle refrigerants. Look for contractors with City & Guilds qualifications, CITB certification and membership of bodies such as REFCOM and CHAS. Chillaire’s engineers hold all of these credentials, giving you full assurance that every service visit is compliant and properly documented.

Set a Visit Times That Suits Your Systems

A single annual service is sufficient for smaller AC systems. Systems with higher refrigerant charges, those running year-round or those in demanding environments should be serviced twice yearly or more. Your engineer should advise you on the right frequency at the outset.

Act on Reported Issues Promptly

If the engineer’s post-visit report flags a developing fault or a component in need of replacement, addressing it quickly prevents a small issue from becoming a major breakdown. Chillaire provides clear cost recommendations with every report so you can make an informed decision fast.

Does Planned Preventative Maintenance Cover Heat Pumps and Heating Systems Too?

Yes. Air source heat pump maintenance follows the same principles as AC maintenance because heat pumps are effectively air conditioning systems operating in reverse. They use the same refrigerant cycle and the same F-gas regulations apply.

Chillaire’s planned maintenance agreements cover heat pump systems alongside air conditioning and also extend to gas-fired heating systems. All gas heating must be serviced annually by a Gas Safe-registered engineer and certified after every visit. Chillaire is registered with Gas Safe and our engineers are fully qualified to maintain both air conditioning and commercial heating systems under a single agreement.

What Are the Signs Your AC System Needs Urgent Attention Between Scheduled Visits?

Even with a maintenance contract in place, it is useful to know what warning signs to look out for between scheduled visits. If you notice any of the following in your AC system, contact your engineer promptly:

• Reduced cooling or heating output despite the system running
• Unusual noises such as rattling, hissing or banging
• Ice forming on the indoor or outdoor unit
• Water leaking from the unit
• A sudden rise in energy bills without an obvious explanation
• Unusual smells coming from the unit
• The system cycling on and off more frequently than normal

You can also read our commercial AC repair checklist for issues that need immediate attention.

How Do You Set Up an AC Planned Maintenance Contract With Chillaire?

Setting up a service maintenance agreement with Chillaire is an easy process:

• Contact our team for a free site survey and consultation.
• We assess your systems, usage patterns and F-gas requirements.
• We recommend the appropriate service frequency and contract level.
• Your first maintenance visit is scheduled and carried out.
• The contract is set up and runs for 12 months, renewing automatically.
• We contact you ahead of every visit and manage the schedule on your behalf.

We cover the full Midlands region, including Coventry, Leicestershire, Worcestershire and beyond. We work with commercial, industrial and retail clients across a wide range of sectors, including manufacturing, distribution, offices, retail, hospitality and education.

We are a Daikin D1 Business Partner and an accredited installer with Mitsubishi Electric, giving our contract customers priority access to parts and technical support from two of the industry’s leading brands.

Contact our expert team today to discuss setting up an AC planned preventative maintenance contract.