Air conditioning replacement and upgrades in Dartford
From a single room to a whole floor: air conditioning replacement in Dartford, 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 it cost to replace air conditioning in Dartford?
Budget roughly £1,895–£5,095 per indoor unit ex VAT in Dartford. For a typical job — replacing a 3–4 unit system, re-using sound pipework — expect £6,850–£16,695 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.
Where we work around Dartford
Businesses in Dartford range from independent shops and restaurants to offices, clinics and warehouses. Basildon is about 22 km away.
We work across Dartford's postcode districts, including DA1. Nearby, we also cover Bexley (about 5 km), Swanley (about 6 km) and Welling (about 8 km). In Dartford we work with offices, shops and hospitality premises, from a single room to a whole floor; each job starts with a heat load check rather than a guess from the floor area.
What you get
- Condition survey of the existing system
- Pipework re-use assessment, flushing where suitable
- Removal and disposal of old equipment
- Installation of new efficient units
- Commissioning and new F-gas records
Prices in Dartford
Prices below include our regional adjustment for the South East (15% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Like-for-like split replacement | £1,895–£3,950 | £2,274–£4,740 | per system |
| Cassette replacement | £2,450–£5,095 | £2,940–£6,114 | per unit |
| Refrigerant recovery and disposal | £225–£685 | £270–£822 | per system |
| Pipework flush and test (re-use) | £225–£685 | £270–£822 | per circuit |
Ex VAT, supply and install.
How a job in Dartford works
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. We keep work areas in Dartford screened and tidy at the end of each day.
Install and commission
New units are fitted, tested and commissioned with fresh records.
Local points to consider
Downtime
We schedule the swap to keep the space usable, often over a weekend.
Working hours
Most Dartford businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Pipe re-use
Re-use depends on pipe size, condition, cleanliness and the new refrigerant. We test before relying on it.
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.
Premises we work in around Dartford
- Hotels and hospitality: quiet bedroom units, public-area cooling and heat recovery for hotels.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
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).
Your questions answered
How much does it cost to replace air conditioning in Dartford?
Guide prices in Dartford run from about £1,895 to £5,095 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) costs £6,850–£16,695 plus VAT. We fix the price in writing after a free survey.
Do you also cover Bexley, Swanley and Welling?
Yes. Alongside Dartford, we also cover Bexley, Swanley and Welling. Each has its own page with local guide prices.
Which postcodes do you cover in Dartford?
All of them, including DA1. Give us your postcode when you enquire and we will confirm the visit details.
Should we replace R410A systems now?
Not necessarily. If an R410A system is working well and maintained, keep it. Plan replacement when it becomes unreliable or expensive to run.
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.
Get a guide price for Dartford
Free survey and fixed written quote. We reply with a guide price or to book the survey.