Air conditioning replacement and upgrades in Derry
Air conditioning replacement for businesses in Derry — 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 it cost to replace air conditioning in Derry?
Our guide range in Derry is £1,500–£4,095 per indoor unit before VAT; a typical job (replacing a 3–4 unit system, re-using sound pipework) is £5,450–£13,350 plus VAT. The fixed price follows a 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.
Where we work around Derry
Derry supports a mix of high-street retail, professional offices, hospitality and light industry.
We cover every Derry postcode, including BT47. Nearby, we also cover Strabane (about 22 km), Limavady (about 24 km) and Coleraine (about 44 km). Air conditioning replacement in Derry is priced from a written specification: unit sizes, positions, pipe routes, condensate, electrics, controls and commissioning are all listed.
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
Replacement and upgrades prices in Derry
Guide prices for Derry, set for Northern Ireland. Your fixed price comes in writing.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Like-for-like split replacement | £1,500–£3,150 | £1,800–£3,780 | per system |
| Cassette replacement | £1,995–£4,095 | £2,394–£4,914 | per unit |
| Refrigerant recovery and disposal | £180–£545 | £216–£654 | per system |
| Pipework flush and test (re-use) | £180–£545 | £216–£654 | per circuit |
Ex VAT, supply and install.
How we work in Derry
Survey
We record what is installed, its condition and refrigerant, and what can be re-used.
Plan the swap
Removal and installation are scheduled to keep downtime short.
Recover and remove
Refrigerant is recovered into certified cylinders and the old units removed. In Derry we agree timings around your opening hours.
Install and commission
New units are fitted, tested and commissioned with fresh records.
Points to plan for in Derry
R22
Since 1 January 2015, R22 systems cannot be maintained using virgin or recycled R22. If one leaks, the practical fix is usually replacement.
Conservation areas
Historic streets and listed buildings in and around Derry 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.
Downtime
We schedule the swap to keep the space usable, often over a weekend.
Leased premises
If your Derry premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Premises we work in around Derry
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
- Hotels and hospitality: quiet bedroom units, public-area cooling and heat recovery for hotels.
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
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 Derry?
Guide prices in Derry 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 Strabane, Limavady and Coleraine?
Yes. Alongside Derry, we also cover Strabane, Limavady and Coleraine. Each has its own page with local guide prices.
Which postcodes do you cover in Derry?
All of them, including BT47. Give us your postcode when you enquire and we will confirm the visit details.
Will a new system be cheaper to run?
Usually. Modern inverter systems are considerably more efficient than equipment from 15–20 years ago, though savings depend on use.
What happens to the old refrigerant?
It is recovered into certified cylinders and sent for reclamation or destruction, with the paperwork kept on your records.
Get a guide price for Derry
Free survey and fixed written quote. We reply with a guide price or to book the survey.