Split systems

Split air conditioning, simply done well

A split system pairs a quiet indoor unit with a compact outdoor unit. It is the most popular, efficient and cost-effective way to cool – and heat – an individual room.

  • Free survey & fixed quote
  • Certified engineers
  • Warranty-backed

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How a split air conditioning system worksDiagram of a split air conditioning system: an indoor wall unit inside the room connected by refrigerant pipework through the wall to an outdoor condenser unit.INSIDEOUTSIDE Indoor unit Cool or warm air into the room Refrigerantpipework Outdoor unitCompressor & condenser One indoor + one outdoor unitHeats and cools a single room
Highly efficient

Inverter technology adjusts output to demand.

Whisper-quiet

The noisy compressor sits outside.

Heats and cools

Year-round comfort from one system.

Fast install

Most split systems are fitted in a day.

What is a split air conditioning system?

A split system separates the air conditioner into two parts: an indoor unit that delivers cool or warm air to the room, and an outdoor unit containing the compressor and condenser. The two are connected by small refrigerant pipes and a cable through a single neat hole in the wall.

Because the compressor is outside, split systems are much quieter and far more efficient than portable or window units – read our comparison of portable vs fixed air conditioning.

Types of split systems we install

  • Wall-mounted splits – ideal for bedrooms, living rooms and offices.
  • Cassette splits – recessed into the ceiling for open-plan and commercial spaces.
  • Floor-standing and low-level units – perfect for conservatories and rooms with limited wall space.
  • Concealed ducted splits – hidden in a ceiling void with only grilles visible.

Need several rooms? A multi-split system connects multiple indoor units to one outdoor unit.

Split air conditioning outdoor unit being installed
Split air conditioning outdoor unit being installed.

Installing split AC without disruption

We plan pipe routes carefully to keep visible trunking to a minimum, use dust sheets and extraction while drilling, and leave your home or office clean. Preparation is simple: clear access to the wall where the indoor unit will go and the area outside for the condenser.

Costs, sizing and aftercare

The cost of a split system depends mainly on its cooling capacity, the brand and features you choose, and the length and complexity of the pipe run. We calculate the correct size during your free survey – see our guide on choosing the right size air conditioner.

Every installation comes with a warranty and a detailed service report. Annual servicing keeps your split system efficient and your warranty valid.

Where should the indoor and outdoor units go?

Indoor unit placement

High on a wall with clear airflow across the room, away from direct sun and heat sources, and ideally on or near an outside wall to keep pipe runs short and neat.

Outdoor unit placement and noise

On a wall bracket or ground stand with space for airflow and servicing, positioned considerately for neighbours. We provide noise data where needed.

Split system or multi-split: which do you need?

For one or two rooms, single split systems are simple, resilient and cost-effective. Once you want three or more rooms, or external space is limited, a multi-split usually makes more sense.

Local coverage

Split systems near you in Northampton

Our engineers provide split air conditioning across Northampton and Northamptonshire. Choose your area for local information.

FAQs

Split systems questions, answered

Still have a question? Get in touch
How long does a split system installation take?

Most single split systems are installed in one day, including commissioning and handover.

How far can the outdoor unit be from the indoor unit?

It depends on the model, but most systems allow generous pipe runs. We plan positions during the survey to balance performance and appearance.

Are split systems energy-efficient?

Yes. Modern inverter split systems are among the most efficient ways to cool and heat a room, using far less energy than portable units.

Can a split system be used for heating?

Yes. Split systems are reversible heat pumps and provide efficient heating as well as cooling.

Free, no-obligation quote

Get a split system quote

Tell us about the room you'd like to cool and we'll size the right split system for it.

  • Free site survey – usually within 24–48 hours
  • Clear, fixed pricing – no hidden extras
  • Certified engineers with 20+ years' experience
  • Comprehensive warranties on parts and labour
Call us today0191 477 1152

Request your free quote

Tell us a little about your project and we'll get back to you within 24 hours.

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Free quotes across Northampton

Cool one room, beautifully

A split system is the simplest way to beat the heat. Get your free quote today.

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