Choosing the right air conditioning system for your home isn’t just about cooling — it’s about comfort, aesthetics, efficiency, and long-term value. The two most common types of home installations in the UK are wall-mounted split systems and ducted air conditioning systems. But which one is right for you?

In this guide, we compare both options side by side so you can make an informed decision for your property, your budget, and your lifestyle.

An Overview: What’s the Difference?

Wall-Mounted Split Systems

A wall-mounted air conditioning system includes:

• An indoor unit fixed to a wall (typically high up)
  
• An outdoor condenser unit placed outside the property
  
• Refrigerant pipework connecting the two
  

Each indoor unit cools (or heats) one room or zone. For multiple rooms, you can opt for a multi-split system with several indoor units connected to one outdoor unit.

Ducted Air Conditioning Systems

Ducted systems are more complex and include:

• A central indoor unit (usually in a loft, ceiling void, or utility space)
  
• A network of ducts carrying cool air to vents in multiple rooms
  
• Grilles flush with the ceiling or wall for discreet airflow
  
• One or more outdoor condenser units
  

These systems cool the entire home with zoned temperature control.

1. Aesthetics

Wall-Mounted Units:

• Visible on the wall (usually white or silver)
  
• Modern units are slim and quiet, but they are still visible
  
• Great for home offices, bedrooms, or individual rooms
  

Ducted Systems:

• Virtually invisible indoors — just small grilles or vents show
  
• Perfect for modern interiors, minimalist homes, or high-end renovations
  
• Ideal for those who want temperature control without compromising décor
  

Winner: Ducted systems (for those who value aesthetics and seamless design)

2. Installation Requirements

Wall-Mounted:

• Quick and non-invasive install (usually one day)
  
• Requires minimal disruption to the property
  
• Outdoor unit must be mounted nearby
  

Ducted:

• Requires ceiling voids or loft space to run ductwork
  
• Installation is more complex and may take several days
  
• Ideal for new builds, extensions, or major renovations
  

Winner: Wall-mounted systems (for ease and speed of installation)

3. Cost

Wall-Mounted:

• More affordable to purchase and install
  
• Starting from £1,200–£2,500 per room (installed)
  
• Suitable for gradual upgrades room by room
  

Ducted:

• Higher upfront cost due to complexity and materials
  
• Whole-home systems often start at £5,000–£10,000+
  
• May increase resale value for premium homes
  

Winner: Wall-mounted systems (for affordability)

4. Energy Efficiency

Both systems use inverter technology, which is highly energy efficient and adjusts power based on cooling demand.

However:

• Wall-mounted units only cool the room they’re in — efficient for light users
  
• Ducted systems can be zoned to avoid cooling empty rooms but may use more energy for whole-home coverage
  

Winner: Tie — Efficiency depends on usage and property size

5. Temperature Control

Wall-Mounted:

• Each unit has its own remote or smart control
  
• Good for individual room control
  
• Lacks full-house synchronisation
  

Ducted:

• Central control panel with optional smart zoning
  
• Seamless temperature control across the home
  
• Multiple zones for different temperatures in different rooms
  

Winner: Ducted systems (for ultimate control)

6. Noise

Wall-Mounted:

• Very quiet, but since the indoor unit contains a fan, there is some low-level noise
  
• Outdoor condenser can be heard if placed close to windows or outdoor living spaces
  

Ducted:

• Central unit is typically installed in the attic or ceiling space — virtually silent indoors
  
• Only vents are present in living areas, creating a peaceful environment
  

Winner: Ducted systems (for silent comfort)

7. Best Use Cases

Maintenance Considerations

Wall-Mounted:

• Easy to access and clean filters
  
• Servicing typically includes indoor and outdoor units
  
• Cost-effective for occasional maintenance
  

Ducted:

• Requires periodic duct cleaning to prevent dust/mould
  
• Professional filter replacement and inspection recommended
  
• May need servicing at central unit and multiple zones
  

Nevergreen Pools (TRS Cooling’s sister team) offers annual servicing plans for both types to keep them in top condition.

Smart Features and Integration

Modern systems support:

• Wi-Fi app control
  
• Voice assistants like Alexa or Google Home
  
• Smart zoning with motion detection
  
• Integration with solar PV to run units on self-generated electricity
  

Whether you choose wall-mounted or ducted, TRS Cooling ensures you have access to the latest technology.

Real Customer Comparison

“We installed a wall-mounted unit in our master bedroom last summer. It made such a difference we added two more units this year. TRS Cooling made the process seamless.”
— Jack R., Kidlington

“When we renovated our home, we went with ducted air conditioning. You can’t see it, you can’t hear it, but the comfort is incredible. Worth every penny.”
— Amina L., Oxford

So, Which Should You Choose?

Go for a Wall-Mounted System if:

• You’re cooling one or two rooms
  
• You want quick, affordable installation
  
• You live in a flat, semi, or terraced house
  
• You don’t want to commit to a whole-home upgrade yet
  

Go for a Ducted System if:

• You’re building or renovating a full property
  
• You want invisible, silent airflow
  
• You need zoned temperature control
  
• You want long-term property value and luxury comfort
  

Speak to TRS Cooling for Honest Advice

At TRS Cooling, we don’t push one system over the other. Our experienced engineers assess your property, lifestyle, and budget to recommend the best option for you.

• Transparent quotes
  
• Manufacturer warranties
  
• Fast turnaround times
  
• Local reputation across Bicester, Kidlington, Oxford, and beyond
  

Get in touch today to book your FREE home survey or call for expert advice.