How-Often-Should-You-Service-Your-Air-Conditioning-System1

How Often Should You Service Your Air Conditioning System?

If you’ve invested in air conditioning, you’ll want to make sure it runs efficiently, quietly, and reliably for years to come. One of the most overlooked – yet critical – aspects of maintaining your air conditioning system is regular servicing.

So, how often should you service your air conditioning system in the UK? Let’s break it down.

Why Regular Servicing Matters

Air conditioning systems, whether residential or commercial, work hard to keep your indoor space comfortable. Over time, they accumulate dust, debris, and wear, which can:

  • Reduce efficiency
  • Lead to higher energy bills
  • Shorten lifespan
  • Cause unpleasant smells or noises
  • Void manufacturer warranties

Routine servicing helps prevent these problems and ensures your system is working at peak performance.

Recommended Service Frequency (UK Guidelines)

In the UK, it’s generally recommended to service your air conditioning system once per year – ideally before the summer to ensure everything runs smoothly during peak usage.

Exceptions:

  • Commercial systems or those in constant use may need servicing every 6 months.
  • If your unit is also used for heating in winter, a biannual check is advisable.

What Does an Air Conditioning Service Include?

A comprehensive service from a certified engineer typically involves:

  • Filter cleaning or replacement
  • Checking refrigerant levels
  • Cleaning coils and condensers
  • Inspecting ductwork for leaks or obstructions
  • Testing thermostat accuracy
  • Checking electrical components and connections
  • Flushing and disinfecting the drainage system
  • Inspecting insulation on refrigerant lines
  • Cleaning indoor and outdoor units

These steps not only enhance performance but also catch early signs of potential failures – saving you from costly repairs later.

Signs Your AC Needs Immediate Servicing

Even if it hasn’t been a full year, keep an eye out for the following red flags:

  • Unusual noises: Buzzing, rattling or banging sounds
  • Reduced airflow or warm air when cooling
  • Leaks or water pooling around the unit
  • Foul or musty smells when running
  • Unexpectedly high energy bills

If any of these symptoms appear, contact your service provider promptly.

How Long Does an AC Service Take?

A standard residential air conditioning service usually takes between 1–2 hours, depending on the system size and access. Larger commercial units or ducted systems may take longer.

Cost of Servicing an Air Conditioner (UK Estimate)

  • Residential split system: £70–£150
  • Portable unit check: £50–£80
  • Commercial systems: £150–£300+, depending on size

Prices vary depending on the unit type, location, and provider – but regular maintenance is far more cost-effective than reactive repairs or early replacement.

How Servicing Extends the Life of Your AC System

A well-maintained air conditioner can last 10–15 years or longer. Without regular servicing, that lifespan could be cut in half. Servicing helps:

  • Prevent major faults
  • Maintain energy efficiency
  • Reduce strain on system components
  • Uphold your manufacturer warranty

Does Your Warranty Require Regular Servicing?

Many manufacturers in the UK require annual servicing by a certified technician to maintain your unit’s warranty. Failure to do so could invalidate coverage, leaving you liable for repair or replacement costs.

The Importance of F-Gas Certification

If your air conditioning system contains fluorinated gases (F-gases), it must be installed and serviced by an F-Gas certified engineer, as per UK law. TRS Cooling’s team holds all required certifications, ensuring legal compliance and best-practice service.

TRS Cooling: Reliable Servicing Across Oxfordshire

At TRS Cooling, we don’t just install air conditioning – we provide ongoing care and maintenance to ensure your system remains efficient and reliable. Whether you have a wall-mounted split system, ducted unit, or commercial setup, we offer:

  • Annual and biannual servicing packages
  • Emergency callouts
  • Replacement filters and parts
  • Expert advice on performance upgrades

Our engineers are F-Gas registered, fully trained, and local to Oxfordshire.

Final Thoughts

Annual air conditioning servicing isn’t just a recommendation — it’s a smart investment. For homeowners and businesses alike, regular maintenance ensures energy efficiency, extends lifespan, and protects your warranty.

Don’t wait for something to go wrong. Book your AC service with TRS Cooling today and enjoy peace of mind all year round.

Explore More Air Conditioning Servicing Guides