Ducted air conditioning in Chiswick
Ducted systems suit Chiswick loft conversions and new extensions where ceilings are being boarded anyway. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
In an older house in Chiswick, the loft and any existing bulkheads decide whether a ducted layout will work. We cover Chiswick as part of London, roughly 6 miles from central London. Homes in W4 are all within our coverage.
Prices in Chiswick
For Chiswick, expect roughly £7,195 to £19,745 per system, VAT included, adjusted for typical London rates. That is above the UK middle, mainly because labour and access cost more in London. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. For reference, the Zoned option in Chiswick (motorised dampers or two units for separate floors or room groups) usually comes to about £9,845–£14,445.
Single zone
One ducted unit serving two or three rooms from a loft or void.
Zoned
Motorised dampers or two units for separate floors or room groups.
Whole home
Multiple ducted units with linear slot diffusers and smart control.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Planning and permissions
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
The survey
On a survey in Chiswick the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote.
What is included
Every job in Chiswick includes:
- Access hatch and condensate route planned in
- Free survey with ceiling-void and loft inspection
- Insulated ductwork, plenums and grilles
- Commissioning with airflow balancing per grille
- Wall controller or app control
Nearby
Close to Chiswick, our coverage also includes Acton (1 mile), Barnes (1 mile) and Shepherds Bush (2 miles). See all services in Chiswick or ducted air conditioning across London.