VRF and VRV systems in Derry
Cooling and heating for offices, shops and hospitality venues in Derry, with a free site survey and a fixed written quote.
- 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 a VRF system cost in Derry?
In Derry, guide prices run from about £2,250 to £4,550 per indoor unit (whole system), plus VAT. A typical job (office floor of 10–16 indoor units) usually comes to £22,500–£72,995 plus VAT. Your exact price is fixed in writing once we have surveyed.
VRF (variable refrigerant flow) — called VRV by some manufacturers — is a commercial air conditioning system where one outdoor unit, or a bank of them, serves many indoor units through a shared refrigerant network.
Our coverage in Derry
In Derry, typical commercial premises include town-centre shops and offices, surgeries, gyms and units on business parks.
That includes premises in BT47 and the surrounding districts. We also cover Strabane, Limavady and Coleraine, all within easy reach of Derry. In Derry, 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
- Heat load and diversity calculations for every zone
- Two-pipe (heat pump) or three-pipe / two-pipe heat recovery system design
- Refrigerant pipework sizing, branch selectors and refrigerant charge calculation
- Central controls, scheduling and BMS integration
- Phased installation, pressure testing, commissioning and full F-gas records
Guide 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 |
|---|---|---|---|
| Heat pump VRF, per indoor unit | £2,250–£4,095 | £2,700–£4,914 | per unit |
| Heat recovery VRF, per indoor unit | £2,695–£4,550 | £3,234–£5,460 | per unit |
| Central controller and BMS interface | £870–£3,650 | £1,044–£4,380 | per system |
| Refrigerant leak detection (per alarmed room) | £365–£825 | £438–£990 | per room |
| Crane lift for roof plant | £870–£2,695 | £1,044–£3,234 | per lift |
Ex VAT, installed system prices including outdoor plant shared across indoor units.
From enquiry to handover in Derry
Survey and loads
We calculate loads zone by zone and check roof or plant space, risers and ceiling voids.
System design
Outdoor units, indoor units, branch boxes and pipe sizes are designed together, including the refrigerant charge and any leak detection.
Phased first fix
Pipework and controls cabling go in floor by floor, often out of hours in occupied buildings. In Derry we agree timings around your opening hours.
Pressure test and charge
The network is pressure tested, evacuated and charged with the calculated refrigerant quantity.
Commissioning
Each indoor unit is commissioned and the controls set up, with as-fitted drawings and F-gas records handed over.
Local points to consider
Leak checks
Larger VRF systems usually exceed 5 tonnes CO2 equivalent, so they need at least annual F-gas leak checks — more often at 50 tonnes and above.
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.
Phasing
In occupied buildings we plan the work floor by floor so the business keeps running.
Access and parking
Town-centre jobs in Derry often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Typical premises in Derry
- 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.
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).
Questions about VRF / VRV in Derry
How much does a VRF system cost in Derry?
Guide prices in Derry run from about £2,250 to £4,550 per indoor unit (whole system), plus VAT. A typical job (office floor of 10–16 indoor units) costs £22,500–£72,995 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.
What is heat recovery VRF?
A version that can cool some zones and heat others at the same time, moving heat around the building instead of dumping it outside.
Does a VRF system need F-gas leak checks?
Usually yes. Most VRF systems hold enough refrigerant to exceed 5 tonnes CO2 equivalent, which triggers at least annual leak checks and record keeping.
Get a guide price for Derry
Free survey and fixed written quote. We reply with a guide price or to book the survey.