Split and multi-split systems in Derby
From a single room to a whole floor: split and multi-split air conditioning in Derby, planned around your trading hours.
- 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 split air conditioning system cost in Derby?
In Derby, guide prices run from about £1,395 to £2,895 per system, plus VAT. A typical job (two-room multi-split) usually comes to £3,395–£5,850 plus VAT. Your exact price is fixed in writing once we have surveyed.
A split air conditioning system has an indoor unit and an outdoor unit joined by refrigerant pipework.
Working in Derby
In Derby, commercial premises range from city-centre office blocks and shopping streets to restaurants, hotels and industrial estates.
We work across Derby's postcode districts, including DE1. Nearby, we also cover Belper (about 11 km), Ilkeston (about 12 km) and Heanor (about 13 km). We plan installations in Derby so the noisy work — core drilling, ceiling access, lifting plant — happens when it disturbs your business least.
What we do
- Survey and unit sizing
- Wall-mounted, floor-standing or under-ceiling indoor units
- Outdoor unit on wall brackets, a flat roof frame or ground mounts
- Pipework in neat trunking or concealed routes
- Commissioning, remote or wired controls and F-gas records
Guide prices in Derby
Prices below include our regional adjustment for the East Midlands (2% below the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Single split 2.5–3.5 kW | £1,395–£2,395 | £1,674–£2,874 | per system |
| Single split 5–7 kW | £1,895–£2,895 | £2,274–£3,474 | per system |
| Multi-split, 2 indoor units | £3,395–£5,850 | £4,074–£7,020 | per system |
| Multi-split, 3–4 indoor units | £4,850–£9,750 | £5,820–£11,700 | per system |
| Extra pipework beyond 5 m | £35–£65 | £42–£78 | per metre |
Ex VAT, supply and install with standard access.
From enquiry to handover in Derby
Survey
We size the unit to the room and agree indoor and outdoor positions and the pipe route. For sites in Derby we confirm access and parking beforehand.
Mount the units
Indoor unit on a mounting plate, outdoor unit on brackets or a frame with anti-vibration mounts.
Pipe and wire
Pipework, interconnecting cable and condensate are run and made off neatly.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
What to think about in Derby
Refrigerant rules
Since 1 January 2025, new single split systems holding under 3 kg of refrigerant in Great Britain cannot use refrigerant with a GWP of 750 or more — in practice, R32 or lower.
Working hours
Most Derby businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
One outdoor unit, many rooms
Multi-splits save wall space but share a single compressor. For server rooms or critical spaces we recommend dedicated systems.
Conservation areas
Historic streets and listed buildings in and around Derby are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Premises we work in around Derby
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
Two rules matter for most businesses in England: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Common questions from businesses in Derby
How much does a split air conditioning system cost in Derby?
Guide prices in Derby run from about £1,395 to £2,895 per system, plus VAT. A typical job (two-room multi-split) costs £3,395–£5,850 plus VAT. We fix the price in writing after a free survey.
Do you also cover Belper, Ilkeston and Heanor?
Yes. Alongside Derby, we also cover Belper, Ilkeston and Heanor. Each has its own page with local guide prices.
Which postcodes do you cover in Derby?
All of them, including DE1. Give us your postcode when you enquire and we will confirm the visit details.
How much does a split air conditioning system cost for a business?
A single wall-mounted split typically costs £1,450–£2,950 plus VAT installed. Multi-splits with two to four indoor units are typically £3,450–£9,950 plus VAT.
Does a small split need F-gas leak checks?
It depends on the refrigerant charge and type. Many small R32 splits fall below the 5 tonnes CO2 equivalent threshold for mandatory leak checks, but they still need installing and servicing by F-gas certified engineers.
Get a guide price for Derby
Free survey and fixed written quote. We reply with a guide price or to book the survey.