Ducted air conditioning across Hertfordshire
Ducted systems suit Watford loft conversions and new extensions where ceilings are being boarded anyway. For a renovation in Watford, the best time to plan ducted cooling is before the plasterers arrive. Long sunny spells in the East of England put conservatories and top-floor rooms under real pressure.
Prices in Hertfordshire
Budget around £6,095–£16,745 per system including VAT for ducted air conditioning in and around Hertfordshire. That is above the UK middle, mainly because labour and access cost more in the East of England. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. As an example, the Zoned option (motorised dampers or two units for separate floors or room groups) would typically be £8,345–£12,245 here.
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
For most houses in Hertfordshire, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
On a survey in Hertfordshire 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
Included with ducted air conditioning across Hertfordshire:
- Wall controller or app control
- Concealed fan unit and outdoor unit sized to the zone
- Free survey with ceiling-void and loft inspection
- Access hatch and condensate route planned in
- Commissioning with airflow balancing per grille
- Insulated ductwork, plenums and grilles
Towns in Hertfordshire
Pick your town for local details, or see every service in Hertfordshire.