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

Ducted air conditioning in Lisburn

Ducted air conditioning for businesses in Lisburn — 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 Lisburn?

Our guide range in Lisburn is £3,150–£7,295 per ducted zone before VAT; a typical job (reception or boardroom with one ducted zone) is £3,650–£7,295 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.

Where we work around Lisburn

Lisburn is a large town in County Antrim, with a busy centre, retail parks and industrial estates on its edges. Belfast is about 11 km away.

Postcode districts we cover in Lisburn include BT27 and BT28. We also work in nearby Belfast, Castlereagh and Newtownabbey. For ducted air conditioning in Lisburn, the survey looks at where the outdoor unit can go, how pipework will reach the indoor units and whether the electrical supply has capacity.

What is included

  • 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 Lisburn

Guide prices for Lisburn, set for Northern Ireland. Your fixed price comes in writing.

Ducted AC guide prices, Lisburn
ItemGuide price (ex VAT)Inc VATBasis
Low-profile ducted unit (up to about 7 kW)£3,150–£5,450£3,780–£6,540per zone
Medium static ducted unit (7–14 kW)£4,550–£7,295£5,460–£8,754per zone
Linear slot diffuser£135–£365£162–£438per metre
Access panel and ceiling making good£135–£455£162–£546per unit

Ex VAT, supply and install including standard ductwork.

How we work in Lisburn

  1. Survey and route

    We check void depths and plan routes for supply and return ductwork. For sites in Lisburn 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.

Local points to consider

Void depth

Low-profile ducted units can fit voids of around 250 mm, but ductwork adds depth. We measure the route as well as the unit position.

Working hours

Most Lisburn businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.

Access

Filters and the unit need access for servicing — an access panel is non-negotiable.

Neighbours and noise

Outdoor units near flats — common above shops — need careful siting so noise at neighbours' windows stays low. We choose positions and quieter units with that in mind.

Who we work with in Lisburn

Compliance in Northern Ireland: refrigerant work falls under EU F-gas rules that apply in Northern Ireland, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).

Your questions answered

How much does ducted air conditioning cost in Lisburn?

Guide prices in Lisburn run from about £3,150 to £7,295 per ducted zone, plus VAT. A typical job (reception or boardroom with one ducted zone) costs £3,650–£7,295 plus VAT. We fix the price in writing after a free survey.

Do you also cover Belfast, Castlereagh and Newtownabbey?

Yes. Alongside Lisburn, we also cover Belfast, Castlereagh and Newtownabbey. Each has its own page with local guide prices.

Which postcodes do you cover in Lisburn?

All of them, including BT27 and BT28. 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 Lisburn

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

CallGet a quote