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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 Slough

Cooling and heating for offices, shops and hospitality venues in Slough, 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 Slough?

Budget roughly £1,895–£5,095 per indoor unit ex VAT in Slough. For a typical job — replacing a 3–4 unit system, re-using sound pipework — expect £6,850–£16,695 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.

Our coverage in Slough

In Slough, commercial premises range from city-centre office blocks and shopping streets to restaurants, hotels and industrial estates.

We work across Slough's postcode districts, including SL1 and SL95. We also work in nearby Windsor, Maidenhead and Gerrards Cross. Buildings across Berkshire 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 is included

  • Condition survey of the existing system
  • Pipework re-use assessment, flushing where suitable
  • Refrigerant recovery with waste transfer documentation
  • Removal and disposal of old equipment
  • Installation of new efficient units

Replacement and upgrades prices in Slough

Guide prices for Slough, set for the South East. Your fixed price comes in writing.

Replacement and upgrades guide prices, Slough
ItemGuide price (ex VAT)Inc VATBasis
Like-for-like split replacement£1,895–£3,950£2,274–£4,740per system
Cassette replacement£2,450–£5,095£2,940–£6,114per unit
Refrigerant recovery and disposal£225–£685£270–£822per system
Pipework flush and test (re-use)£225–£685£270–£822per circuit

Ex VAT, supply and install.

How we work in Slough

  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. We keep work areas in Slough screened and tidy at the end of each day.

  4. Install and commission

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

Local points to consider

R22

Since 1 January 2015, R22 systems cannot be maintained using virgin or recycled R22. If one leaks, the practical fix is usually replacement.

Working hours

Most Slough businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.

Downtime

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

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.

Types of premises we cover in Slough

  • Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
  • Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
  • 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.

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.

Questions about replacement and upgrades in Slough

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

Guide prices in Slough 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 Windsor, Maidenhead and Gerrards Cross?

Yes. Alongside Slough, we also cover Windsor, Maidenhead and Gerrards Cross. Each has its own page with local guide prices.

Which postcodes do you cover in Slough?

All of them, including SL1 and SL95. Give us your postcode when you enquire and we will confirm the visit details.

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.

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.

Get a guide price for Slough

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

CallGet a quote