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Electronic leak detector probe held against brazed copper pipe joints

F-gas leak checks and records in London

Get your air conditioning in London on the right side of the rules with F-gas leak checks.

  • Price confirmed before booking
  • Every system listed and checked
  • Records you can show an inspector

How much do F-gas leak checks cost in London?

Expect £185–£315 per visit, first system ex VAT in London; a typical job — leak checks on 3–6 systems in one visit — usually comes to £345–£1,095 plus VAT. You get the price before the visit is booked.

An F-gas leak check is a legally required inspection of air conditioning and refrigeration equipment containing fluorinated gases at or above 5 tonnes CO2 equivalent.

Our coverage in London

We cover all of London, including Brent, Islington, Bexley, Barking and Sutton. Wherever your premises are, the survey, quote and installation follow the same steps.

Postcode districts we cover include BR1, E16, EN5, N16, SE7, SW8, W1 and WC2R. We give you the records in a form an inspector, insurer or landlord can read, and remind you when the next check is due.

What we do

  • Leak check by an F-gas certified engineer
  • Direct and indirect checks to the required method
  • Labels and records updated
  • Leak repair quote if a leak is found
  • Follow-up check within one month of any repair

Local guide prices for London

These guide prices are adjusted for London, where labour and access costs run about 28% above the UK guide.

F-gas leak checks guide prices, London
ItemGuide price (ex VAT)Inc VATBasis
Leak check, first system (includes attendance)£185–£315£222–£378per visit
Each additional system, same visit£85–£160£102–£192per system
F-gas asset register set-upUp to £505Up to £606per site
Automatic leak detection system£995–£3,795£1,194–£4,554per system

Ex VAT. Leak checks are often combined with a service visit at no extra attendance charge.

What happens on a visit in London

  1. Asset check

    We record each system's refrigerant type and charge and calculate its CO2e.

  2. Set the frequency

    Each system gets the legal interval for its CO2e and any automatic leak detection.

  3. Check

    The engineer checks joints, valves, components and operating data for signs of leakage.

  4. Record

    Results are recorded and kept on your F-gas log for at least five years.

Things to check in London

Certified engineers

Leak checks must be done by an engineer holding the right F-gas certification.

Leased premises

If your London 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.

Repairs

If a leak is found it must be repaired without undue delay and re-checked within one month.

Access and parking

Town-centre jobs in London 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.

Types of premises we cover in London

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 F-gas leak checks in London

How much do F-gas leak checks cost in London?

In London, guide prices are around £185–£315 per visit, first system, plus VAT; a typical job (leak checks on 3–6 systems in one visit) is £345–£1,095 plus VAT.

Do you also cover Surrey, Hertfordshire and Essex?

Yes. Alongside London, we also cover Surrey, Hertfordshire and Essex. Each has its own page with local guide prices.

Who is responsible for F-gas compliance?

The operator of the equipment — normally the business with control over it. Contractors do the checks; the operator must make sure they happen and keep records.

How long must records be kept?

For at least five years, covering refrigerant type and quantity, additions and recoveries, leak-check dates and results, and who carried out the work.

Get a guide price for London

The visit price is agreed before we book. We reply with a guide price or available dates.

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