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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 Johnstone

From a single room to a whole floor: air conditioning replacement in Johnstone, 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 Johnstone?

In Johnstone, guide prices run from about £1,595 to £4,250 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) usually comes to £5,695–£13,895 plus VAT. Your exact price is fixed in writing once we have surveyed.

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 Johnstone

Most commercial premises in and around Johnstone are shops, offices, salons, pubs and small industrial units. Glasgow is about 17 km away.

Postcode districts we cover in Johnstone include PA5. Nearby, we also cover Paisley (about 5 km), Barrhead (about 8 km) and Erskine (about 9 km). In Johnstone 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
  • Refrigerant recovery with waste transfer documentation
  • Removal and disposal of old equipment
  • Commissioning and new F-gas records

Replacement and upgrades prices in Johnstone

Guide prices for Johnstone, set for Scotland. Your fixed price comes in writing.

Replacement and upgrades guide prices, Johnstone
ItemGuide price (ex VAT)Inc VATBasis
Like-for-like split replacement£1,595–£3,295£1,914–£3,954per system
Cassette replacement£2,050–£4,250£2,460–£5,100per unit
Refrigerant recovery and disposal£185–£570£222–£684per system
Pipework flush and test (re-use)£185–£570£222–£684per circuit

Ex VAT, supply and install.

The steps for a project in Johnstone

  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 Johnstone we agree timings around your opening hours.

  4. Install and commission

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

Points to plan for in Johnstone

Downtime

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

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.

R22

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

Conservation areas

Historic streets and listed buildings in and around Johnstone are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.

Premises we work in around Johnstone

Two rules matter for most businesses in Scotland: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for systems of 12 kW or more.

FAQs for Johnstone

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

Guide prices in Johnstone run from about £1,595 to £4,250 per indoor unit, plus VAT. A typical job (replacing a 3–4 unit system, re-using sound pipework) costs £5,695–£13,895 plus VAT. We fix the price in writing after a free survey.

Do you also cover Paisley, Barrhead and Erskine?

Yes. Alongside Johnstone, we also cover Paisley, Barrhead and Erskine. Each has its own page with local guide prices.

Which postcodes do you cover in Johnstone?

All of them, including PA5. 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.

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.

Need air conditioning replacement in Johnstone?

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

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