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Old rusty condenser on a pallet beside a new outdoor unit being connected on a flat roof

Air conditioning replacement and upgrades in Belfast

Air conditioning replacement in Belfast, sized to the real heat load of your premises rather than guessed from the floor area.

  • 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 it cost to replace air conditioning in Belfast?

Budget roughly £1,500–£4,095 per indoor unit ex VAT in Belfast. For a typical job — replacing a 3–4 unit system, re-using sound pipework — expect £5,450–£13,350 plus VAT. You get a fixed written quote after the free survey.

Air conditioning replacement is removing an old system — often one using R22 or R410A refrigerant — and installing new, more efficient equipment, re-using pipework where it is safe and compatible.

Working in Belfast

Belfast has the full mix of premises that need cooling and heating: offices, shops, restaurants, gyms, clinics and technical rooms.

Postcode districts we cover in Belfast include BT1, BT2, BT3, BT4, BT5 and BT6. Nearby, we also cover Castlereagh (about 4 km), Newtownabbey (about 7 km) and Lisburn (about 11 km). In Belfast, outdoor unit positions are often the deciding factor: a rear flat roof or yard is usually straightforward, while a front elevation may need landlord or planning consent first.

What the job covers

  • Condition survey of the existing system
  • Pipework re-use assessment, flushing where suitable
  • Refrigerant recovery with waste transfer documentation
  • Removal and disposal of old equipment
  • Installation of new efficient units

Prices in Belfast

These guide prices are adjusted for Northern Ireland, where labour and access costs run about 8% below the UK guide.

Replacement and upgrades guide prices, Belfast
ItemGuide price (ex VAT)Inc VATBasis
Like-for-like split replacement£1,500–£3,150£1,800–£3,780per system
Cassette replacement£1,995–£4,095£2,394–£4,914per unit
Refrigerant recovery and disposal£180–£545£216–£654per system
Pipework flush and test (re-use)£180–£545£216–£654per circuit

Ex VAT, supply and install.

How it works in Belfast

  1. Survey

    We record what is installed, its condition and refrigerant, and what can be re-used.

  2. Plan the swap

    Removal and installation are scheduled to keep downtime short.

  3. Recover and remove

    Refrigerant is recovered into certified cylinders and the old units removed. We keep work areas in Belfast screened and tidy at the end of each day.

  4. Install and commission

    New units are fitted, tested and commissioned with fresh records.

Things to check in Belfast

Downtime

We schedule the swap to keep the space usable, often over a weekend.

Conservation areas

Historic streets and listed buildings in and around Belfast are more likely to need planning permission for outdoor units on visible elevations. We check with the council's planning service before work is booked.

R22

Since 1 January 2015, R22 systems cannot be maintained using virgin or recycled R22. If one leaks, the practical fix is usually replacement.

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.

Premises we work in around Belfast

  • Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
  • Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
  • Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
  • Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.

Two rules matter for most businesses in Northern Ireland: EU F-gas rules that apply in Northern Ireland (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.

Your questions answered

How much does it cost to replace air conditioning in Belfast?

Guide prices in Belfast run from about £1,500 to £4,095 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) costs £5,450–£13,350 plus VAT. We fix the price in writing after a free survey.

Do you also cover Castlereagh, Newtownabbey and Lisburn?

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

Which postcodes do you cover in Belfast?

All of them, including BT1, BT2, BT3 and BT4. Give us your postcode when you enquire and we will confirm the visit details.

Is it illegal to use R22 air conditioning?

No — you can keep running an R22 system, but it cannot be maintained with virgin or recycled R22, so most repairs involving the refrigerant circuit are no longer possible.

Should we replace R410A systems now?

Not necessarily. If an R410A system is working well and maintained, keep it. Plan replacement when it becomes unreliable or expensive to run.

Need air conditioning replacement in Belfast?

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

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