Air conditioning replacement and upgrades in Carshalton
A free survey, a clear specification and a fixed price for air conditioning replacement in Carshalton.
- 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 Carshalton?
In Carshalton, guide prices run from about £2,095 to £5,695 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) usually comes to £7,595–£18,550 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.
Covering Carshalton and nearby
Carshalton sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
We cover every Carshalton postcode, including SM5. Nearby, we also cover Wallington (about 1 km), Sutton (about 3 km) and Mitcham (about 4 km). Buildings across London range from converted period offices to modern units with deep ceiling voids, so we measure each site rather than relying on a standard package.
What the job covers
- Condition survey of the existing system
- Refrigerant recovery with waste transfer documentation
- Removal and disposal of old equipment
- Installation of new efficient units
- Commissioning and new F-gas records
Replacement and upgrades prices in Carshalton
Prices below include our regional adjustment for London (28% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Like-for-like split replacement | £2,095–£4,395 | £2,514–£5,274 | per system |
| Cassette replacement | £2,750–£5,695 | £3,300–£6,834 | per unit |
| Refrigerant recovery and disposal | £245–£760 | £294–£912 | per system |
| Pipework flush and test (re-use) | £245–£760 | £294–£912 | per circuit |
Ex VAT, supply and install.
The steps for a project in Carshalton
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 Carshalton we agree timings around your opening hours.
Install and commission
New units are fitted, tested and commissioned with fresh records.
Before you book in Carshalton
Downtime
We schedule the swap to keep the space usable, often over a weekend.
Conservation areas
Historic streets and listed buildings in and around Carshalton are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Pipe re-use
Re-use depends on pipe size, condition, cleanliness and the new refrigerant. We test before relying on it.
Access and parking
Town-centre jobs in Carshalton 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 Carshalton
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
- 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.
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 Carshalton
How much does it cost to replace air conditioning in Carshalton?
Guide prices in Carshalton run from about £2,095 to £5,695 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) costs £7,595–£18,550 plus VAT. We fix the price in writing after a free survey.
Do you also cover Wallington, Sutton and Mitcham?
Yes. Alongside Carshalton, we also cover Wallington, Sutton and Mitcham. Each has its own page with local guide prices.
Which postcodes do you cover in Carshalton?
All of them, including SM5. Give us your postcode when you enquire and we will confirm the visit details.
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 Carshalton
Free survey and fixed written quote. We reply with a guide price or to book the survey.