Split and multi-split systems in Hertford
Split and multi-split air conditioning for businesses in Hertford — 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 a split air conditioning system cost in Hertford?
In Hertford, guide prices run from about £1,550 to £3,195 per system, plus VAT. A typical job (two-room multi-split) usually comes to £3,750–£6,450 plus VAT. You get a fixed written quote after the free survey.
A split air conditioning system has an indoor unit and an outdoor unit joined by refrigerant pipework.
Hertford and surrounding areas
Hertford has a compact centre of shops, cafés and offices, with business units on its outskirts. Luton is about 25 km away.
We work across Hertford's postcode districts, including SG13. We also work in nearby Hoddesdon, Welwyn Garden City and Hatfield. In Hertford, 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
- 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
- Condensate drainage
- Commissioning, remote or wired controls and F-gas records
Guide prices in Hertford
Prices below include our regional adjustment for the East of England (8% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Single split 2.5–3.5 kW | £1,550–£2,650 | £1,860–£3,180 | per system |
| Single split 5–7 kW | £2,095–£3,195 | £2,514–£3,834 | per system |
| Multi-split, 2 indoor units | £3,750–£6,450 | £4,500–£7,740 | per system |
| Multi-split, 3–4 indoor units | £5,350–£10,750 | £6,420–£12,900 | per system |
| Extra pipework beyond 5 m | £40–£70 | £48–£84 | per metre |
Ex VAT, supply and install with standard access.
How we work in Hertford
Survey
We size the unit to the room and agree indoor and outdoor positions and the pipe route.
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. We keep work areas in Hertford screened and tidy at the end of each day.
Test and commission
Pressure test, evacuation, any extra refrigerant charge, then commissioning and handover.
Before you book in Hertford
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.
Leased premises
If your Hertford 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.
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.
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.
Who we work with in Hertford
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Questions about split systems in Hertford
How much does a split air conditioning system cost in Hertford?
Guide prices in Hertford run from about £1,550 to £3,195 per system, plus VAT. A typical job (two-room multi-split) costs £3,750–£6,450 plus VAT. We fix the price in writing after a free survey.
Do you also cover Hoddesdon, Welwyn Garden City and Hatfield?
Yes. Alongside Hertford, we also cover Hoddesdon, Welwyn Garden City and Hatfield. Each has its own page with local guide prices.
Which postcodes do you cover in Hertford?
All of them, including SG13. Give us your postcode when you enquire and we will confirm the visit details.
How long does it take to fit?
A single split is usually fitted in a day; a multi-split in one to two days.
Can a split system heat in winter?
Yes. Modern split systems are heat pumps and can heat efficiently down to well below freezing.
Talk to us about your premises in Hertford
Free survey and fixed written quote. We reply with a guide price or to book the survey.