F-gas leak checks and records in County Londonderry
F-gas leak checks for premises in County Londonderry, with records you can show an inspector or insurer.
- Price confirmed before booking
- Every system listed and checked
- Records you can show an inspector
How much do F-gas leak checks cost in County Londonderry?
In County Londonderry, guide prices are about £135–£225 per visit, first system, plus VAT. A typical job (leak checks on 3–6 systems in one visit) is £255–£795 plus VAT. The price is confirmed before booking.
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.
Covering County Londonderry and nearby
We cover all of County Londonderry, including Derry, Coleraine, Limavady and Magherafelt. Wherever your premises are, the survey, quote and installation follow the same steps.
Postcode districts we cover include BT28, BT45, BT46, BT47, BT48, BT49, BT51 and BT52. Many buildings have a mix of older and newer systems, so we record each one separately and nothing is missed.
What is included
- Refrigerant type, charge and CO2e calculation for each system
- Leak check by an F-gas certified engineer
- 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 County Londonderry
Prices below include our regional adjustment for Northern Ireland (8% below the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Leak check, first system (includes attendance) | £135–£225 | £162–£270 | per visit |
| Each additional system, same visit | £60–£115 | £72–£138 | per system |
| F-gas asset register set-up | Up to £365 | Up to £438 | per site |
| Automatic leak detection system | £730–£2,695 | £876–£3,234 | per system |
Ex VAT. Leak checks are often combined with a service visit at no extra attendance charge.
How we handle F-gas leak checks in County Londonderry
Asset check
We record each system's refrigerant type and charge and calculate its CO2e.
Set the frequency
Each system gets the legal interval for its CO2e and any automatic leak detection.
Check
The engineer checks joints, valves, components and operating data for signs of leakage.
Record
Results are recorded and kept on your F-gas log for at least five years.
What to think about in County Londonderry
Northern Ireland
Northern Ireland follows the EU F-gas Regulation (EU) 2024/573 rather than the GB rules. For HFC systems the leak-check thresholds and intervals are the same; it also requires checks on equipment holding 1 kg or more of certain other fluorinated gases, such as HFO refrigerants.
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.
Operator duty
The legal duty sits with the operator — the person or business with actual control over the equipment.
Access and parking
Town-centre jobs in County Londonderry 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 County Londonderry
- Hotels and hospitality: quiet bedroom units, public-area cooling and heat recovery for hotels.
Compliance in Northern Ireland: refrigerant work falls under EU F-gas rules that apply in Northern Ireland, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Your questions answered
How much do F-gas leak checks cost in County Londonderry?
In County Londonderry, guide prices are around £135–£225 per visit, first system, plus VAT; a typical job (leak checks on 3–6 systems in one visit) is £255–£795 plus VAT.
Do you also cover County Tyrone, County Antrim and County Armagh?
Yes. Alongside County Londonderry, we also cover County Tyrone, County Antrim and County Armagh. Each has its own page with local guide prices.
Which systems need F-gas leak checks in Northern Ireland?
Northern Ireland follows the EU F-gas Regulation (EU) 2024/573. For HFC systems the thresholds and intervals match the GB rules — checks from 5 tonnes CO2 equivalent, at least every 12, 6 or 3 months depending on size — and equipment holding 1 kg or more of certain other fluorinated gases, such as HFO refrigerants, also needs checks.
What is CO2 equivalent?
The refrigerant charge in kilograms multiplied by its global warming potential (GWP), divided by 1,000. It puts every refrigerant on the same scale.
How often are leak checks needed?
At least every 12 months from 5 tonnes CO2e, every 6 months from 50 tonnes, and every 3 months from 500 tonnes. Where automatic leak detection is fitted, each interval doubles to 24, 12 and 6 months.
Talk to us about your premises in County Londonderry
The visit price is agreed before we book. We reply with a guide price or available dates.