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Engineer fitting a concealed ducted air conditioning unit above an open ceiling with slot diffusers

Ducted air conditioning in Isleworth

Ducted air conditioning for businesses in Isleworth — surveyed, designed and priced in writing before any work starts.

  • Free site survey and fixed written quote
  • Unit sizes, refrigerant and price set out in writing
  • Work planned around your opening hours

How much does ducted air conditioning cost in Isleworth?

In Isleworth, guide prices run from about £4,395 to £10,195 per ducted zone, plus VAT. A typical job (reception or boardroom with one ducted zone) usually comes to £5,050–£10,195 plus VAT. The fixed price follows a free survey.

Ducted air conditioning uses an indoor unit hidden in the ceiling void or a plant space, connected by ductwork to grilles or slot diffusers in the room.

Our coverage in Isleworth

Premises in Isleworth are often in mixed-use buildings with shared roofs and tight access, so outdoor unit positions are agreed early.

That includes premises in TW7 and the surrounding districts. Nearby, we also cover Hounslow (about 1 km), Heston (about 2 km) and Richmond (about 3 km). Buildings across London range from converted period offices to modern units with deep ceiling voids, so we measure each site rather than relying on a standard package.

Included as standard

  • Survey of void depth and duct routes
  • Ducted unit selection by capacity and external static pressure
  • Supply and return ductwork, plenums and grilles
  • Access panel for servicing
  • Air-flow balancing and commissioning

Ducted AC prices in Isleworth

Guide prices for Isleworth, set for London. Your fixed price comes in writing.

Ducted AC guide prices, Isleworth
ItemGuide price (ex VAT)Inc VATBasis
Low-profile ducted unit (up to about 7 kW)£4,395–£7,595£5,274–£9,114per zone
Medium static ducted unit (7–14 kW)£6,350–£10,195£7,620–£12,234per zone
Linear slot diffuser£185–£505£222–£606per metre
Access panel and ceiling making good£185–£635£222–£762per unit

Ex VAT, supply and install including standard ductwork.

From enquiry to handover in Isleworth

  1. Survey and route

    We check void depths and plan routes for supply and return ductwork. For sites in Isleworth we confirm access and parking beforehand.

  2. Design the air side

    Grille sizes and positions are chosen for even air flow and low noise.

  3. Install unit and ducts

    The unit is hung with access for servicing; ductwork and grilles are fitted.

  4. Balance and commission

    Air flows are measured and balanced, then the system is commissioned.

Before you book in Isleworth

Return air

Every ducted unit needs a return air path; we design it rather than rely on gaps under doors.

Conservation areas

Historic streets and listed buildings in and around Isleworth are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.

Noise

Duct sizes and grille velocities are chosen to keep noise down in quiet rooms.

Shared buildings

In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.

Types of premises we cover in Isleworth

In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.

FAQs for Isleworth

How much does ducted air conditioning cost in Isleworth?

Guide prices in Isleworth run from about £4,395 to £10,195 per ducted zone, plus VAT. A typical job (reception or boardroom with one ducted zone) costs £5,050–£10,195 plus VAT. We fix the price in writing after a free survey.

Do you also cover Hounslow, Heston and Richmond?

Yes. Alongside Isleworth, we also cover Hounslow, Heston and Richmond. Each has its own page with local guide prices.

Which postcodes do you cover in Isleworth?

All of them, including TW7. Give us your postcode when you enquire and we will confirm the visit details.

Is ducted air conditioning more expensive?

Usually a little more than a cassette of the same capacity, because of the ductwork, grilles and access panel. In return you get a much cleaner ceiling.

How much ceiling void is needed?

Low-profile units can work in around 250–300 mm, but the duct route often needs more. We measure at survey.

Get a guide price for Isleworth

Free survey and fixed written quote. We reply with a guide price or to book the survey.

CallGet a quote