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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 Hayes

Air conditioning replacement in Hayes, sized to the real heat load of your premises rather than guessed from the floor area.

  • 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 Hayes?

In Hayes, 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.

Where we work around Hayes

Hayes sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.

We work across Hayes's postcode districts, including BR2, UB3 and UB8. Nearby, we also cover Southall (about 4 km), Heston (about 5 km) and Greenford (about 5 km). We plan installations in Hayes so the noisy work — core drilling, ceiling access, lifting plant — happens when it disturbs your business least.

What we do

  • Pipework re-use assessment, flushing where suitable
  • Refrigerant recovery with waste transfer documentation
  • Removal and disposal of old equipment
  • Installation of new efficient units
  • Commissioning and new F-gas records

Guide prices in Hayes

Prices below include our regional adjustment for London (28% above the UK guide).

Replacement and upgrades guide prices, Hayes
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.

From enquiry to handover in Hayes

  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 Hayes screened and tidy at the end of each day.

  4. Install and commission

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

Things to check in Hayes

Pipe re-use

Re-use depends on pipe size, condition, cleanliness and the new refrigerant. We test before relying on it.

Leased premises

If your Hayes premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.

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 Hayes

  • 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.
  • Warehouses and industrial: cooling for offices, mezzanines, control rooms and temperature-sensitive areas.
  • Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.

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.

Common questions from businesses in Hayes

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

Guide prices in Hayes 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 Southall, Heston and Greenford?

Yes. Alongside Hayes, we also cover Southall, Heston and Greenford. Each has its own page with local guide prices.

Which postcodes do you cover in Hayes?

All of them, including BR2, UB3 and UB8. 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.

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.

Need air conditioning replacement in Hayes?

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

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