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Old rusty condenser on a pallet beside a new outdoor unit being connected on a flat roof

Air conditioning replacement and upgrades in Isleworth

Air conditioning replacement for businesses in Isleworth — 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 it cost to replace air conditioning in Isleworth?

In Isleworth, 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. The fixed price follows a 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.

Working in Isleworth

Premises in Isleworth are often in mixed-use buildings with shared roofs and tight access, so outdoor unit positions are agreed early.

That includes premises in TW7 and the surrounding districts. Neighbouring towns we cover include Hounslow, Heston and Richmond. In Isleworth 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 we do

  • 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

Guide prices in Isleworth

Guide prices for Isleworth, set for London. Your fixed price comes in writing.

Replacement and upgrades guide prices, Isleworth
ItemGuide price (ex VAT)Inc VATBasis
Like-for-like split replacement£2,095–£4,395£2,514–£5,274per system
Cassette replacement£2,750–£5,695£3,300–£6,834per unit
Refrigerant recovery and disposal£245–£760£294–£912per system
Pipework flush and test (re-use)£245–£760£294–£912per circuit

Ex VAT, supply and install.

How it works in Isleworth

  1. Survey

    We record what is installed, its condition and refrigerant, and what can be re-used.

  2. Plan the swap

    Removal and installation are scheduled to keep downtime short.

  3. Recover and remove

    Refrigerant is recovered into certified cylinders and the old units removed. In Isleworth we agree timings around your opening hours.

  4. Install and commission

    New units are fitted, tested and commissioned with fresh records.

What to think about in Isleworth

Downtime

We schedule the swap to keep the space usable, often over a weekend.

Working hours

Most Isleworth 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.

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 Isleworth

  • Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
  • Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
  • 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.

In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.

Questions about replacement and upgrades in Isleworth

How much does it cost to replace air conditioning in Isleworth?

Guide prices in Isleworth 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 Hounslow, Heston and Richmond?

Yes. Alongside Isleworth, we also cover Hounslow, Heston and Richmond. Each has its own page with local guide prices.

Which postcodes do you cover in Isleworth?

All of them, including TW7. Give us your postcode when you enquire and we will confirm the visit details.

Can existing pipework be re-used?

Often, if it is the right size, in good condition and compatible with the new refrigerant. We test and flush it before relying on it.

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 Isleworth

Free survey and fixed written quote. We reply with a guide price or to book the survey.

CallGet a quote