Ducted Air Conditioning Systems
Ducted air conditioning is the most discreet system of all: the indoor unit is concealed in a ceiling void or loft, with conditioned air delivered through ductwork to neat grilles in each room. The result is whole-home comfort with almost nothing on view — the premium choice for renovations and high-end Surrey homes.
In short
A ducted air conditioning system hides the indoor unit in a loft or ceiling void and distributes air through concealed ductwork to discreet grilles in each room. It offers near-invisible whole-home cooling and heating, costing roughly £6,000–£20,000 depending on property size and zoning.
Comfort you can feel but barely see
With a ducted system, the working indoor unit lives out of sight in a loft, ceiling void or service cupboard. Insulated ducts carry conditioned air to slim supply grilles in each room and draw it back through a return grille. All you see are tidy vents in the ceiling — no wall units, no visible boxes — which is why ducted systems are specified for listed and high-specification homes where appearance is paramount.
It is the most architecturally sympathetic way to cool and heat a property, and a natural fit during a renovation, loft conversion or new build when there is access to run ductwork before ceilings are finished.
Planning, zoning and when ducted makes sense
Ducted systems can be zoned, so bedrooms and living areas are controlled independently rather than as one block, balancing comfort and running cost. They suit larger homes and whole-floor projects where running multiple wall or cassette units would be intrusive.
The trade-off is that ducted installation is more involved and costlier than splits, and it needs adequate ceiling or loft depth for the ductwork. It is most cost-effective when planned into building works rather than retrofitted into a finished, occupied home. We assess feasibility, duct routes and zoning during a detailed Surrey survey.
- Indoor unit and ducts fully concealed in ceiling or loft
- Only discreet grilles visible — ideal for period and high-end homes
- Whole-home or whole-floor comfort from one system
- Can be zoned for room-by-room control
- Best planned into renovations, extensions and new builds
- Heats and cools year-round as a reverse-cycle system
Ducted air conditioning indicative costs by project
| Project type | Typical scope | Indicative cost |
|---|---|---|
| Single-floor ducted | 2–4 rooms, one zone | £6,000–£10,000 |
| Whole-home ducted | Multiple rooms, zoned | £10,000–£20,000 |
| Large/complex home | Multi-zone, long duct runs | £20,000+ |
Frequently asked questions
What is the advantage of a ducted system over wall units?
How much does ducted air conditioning cost?
Can a ducted system be retrofitted to an existing house?
Does ducted air conditioning also heat the home?
More on system types
Next steps
Ready for a cooler home or office?
Book a free, no-obligation survey and fixed quote with Guildford’s air conditioning specialists.