Air conditioning replacement and upgrades in Hertfordshire
Cooling and heating for offices, shops and hospitality venues in Hertfordshire, 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 it cost to replace air conditioning in Hertfordshire?
Budget roughly £1,795–£4,795 per indoor unit ex VAT in Hertfordshire. For a typical job — replacing a 3–4 unit system, re-using sound pipework — expect £6,450–£15,650 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.
Hertfordshire and surrounding areas
We cover all of Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City. Wherever your premises are, the survey, quote and installation follow the same steps.
Postcode districts we cover include AL1, AL8, EN7, HP4, SG6, SG13, WD6 and WD99. Air conditioning replacement in Hertfordshire is priced from a written specification: unit sizes, positions, pipe routes, condensate, electrics, controls and commissioning are all listed.
What you get
- Condition survey of the existing system
- Pipework re-use assessment, flushing where suitable
- Refrigerant recovery with waste transfer documentation
- Installation of new efficient units
- Commissioning and new F-gas records
Local guide prices for Hertfordshire
Prices below include our regional adjustment for the East of England (8% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Like-for-like split replacement | £1,795–£3,750 | £2,154–£4,500 | per system |
| Cassette replacement | £2,295–£4,795 | £2,754–£5,754 | per unit |
| Refrigerant recovery and disposal | £210–£645 | £252–£774 | per system |
| Pipework flush and test (re-use) | £210–£645 | £252–£774 | per circuit |
Ex VAT, supply and install.
The steps for a project in Hertfordshire
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 Hertfordshire we agree timings around your opening hours.
Install and commission
New units are fitted, tested and commissioned with fresh records.
Local points to consider
Disposal
Old refrigerant must be recovered by certified engineers and the units disposed of as waste electrical equipment.
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.
R22
Since 1 January 2015, R22 systems cannot be maintained using virgin or recycled R22. If one leaks, the practical fix is usually replacement.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Typical premises in Hertfordshire
- 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.
- Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
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).
FAQs for Hertfordshire
How much does it cost to replace air conditioning in Hertfordshire?
Guide prices in Hertfordshire run from about £1,795 to £4,795 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) costs £6,450–£15,650 plus VAT. We fix the price in writing after a free survey.
Do you also cover Buckinghamshire, Bedfordshire and London?
Yes. Alongside Hertfordshire, we also cover Buckinghamshire, Bedfordshire and London. Each has its own page with local guide prices.
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.
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.
Get a guide price for Hertfordshire
Free survey and fixed written quote. We reply with a guide price or to book the survey.