Emergency Gas Engineer London
Gas leak, boiler breakdown, no heating, or gas appliance failure? Gas Safe registered engineers, 24/7 across all of London. 60-minute response, parts on van, no call-out fee.
🚨 If you smell gas — act immediately
- Do NOT switch any electrical switches on or off (including lights)
- Extinguish all naked flames
- Open windows and doors
- Turn off the gas at the meter (handle 90° to the pipe)
- Leave the property immediately
- Call National Gas Emergency: 0800 111 999 (free, 24/7) from outside
- Do NOT re-enter until cleared — then call us for Gas Safe repair
Emergency Gas Services — London
Gas Leak Emergency
Gas smell detected. Engineer attends with detection equipment, isolates source, makes safe, tightness test. Immediately Dangerous notice issued where required.
Boiler Breakdown (No Heat)
Complete boiler failure — no heating, no hot water. Full diagnosis, common parts on van. Most breakdowns fixed in one visit.
Boiler Fault / Error Code
Error code displayed, lockout, pressure fault. Diagnose root cause, reset or repair. Common causes: low pressure, frozen condensate, ignition fault.
Gas Appliance Failure
Gas cooker, gas fire, or gas hob not lighting or unsafe. Safety check, repair or isolation. All makes covered.
No Pilot Light
Pilot light won't stay lit — thermocouple or thermopile failure. Diagnosis and replacement.
Gas Safety Certificate (CP12)
Annual landlord gas safety check across all appliances and pipework. Certificate issued same day. Required for all London rental properties.
Emergency Gas Engineer Prices — London 2026
✅ All Gas Safe work is registered and notified
Every gas job we carry out is registered with the Gas Safe Register and the work notification is issued. You receive a copy of the Gas Safe work notification upon completion. Verify any engineer's Gas Safe registration at gassaferegister.co.uk or call 0800 408 5500.
| Service | Price (London 2026) |
|---|---|
| Emergency callout (24/7) + first hour | £120–£180 |
| Additional labour (per hour) | £80–£120 |
| Gas tightness test (after repair) | Included |
| Thermocouple / pilot light repair | £85–£150 |
| Gas valve replacement | £150–£350 |
| Boiler PCB replacement | £200–£500 |
| Gas pipe repair (accessible) | £150–£250 |
| Gas pipe repair (concealed) | £300–£600 |
| Gas Safety Certificate (CP12) | £75–£95 |
| Boiler service (during callout) | £80–£120 |
Emergency Gas Engineers Across London
Emergency Gas Engineer FAQs
What should I do if I smell gas in London?
Don't operate any switches. Open windows, turn off gas at the meter, leave the building and call National Gas Emergency on 0800 111 999 (free, 24/7). Only re-enter once cleared. Then call us for a Gas Safe inspection and repair.
How quickly can an emergency gas engineer reach me in London?
60-minute target across all 33 boroughs. Central London (zones 1–2): 30–45 min. Outer boroughs: 45–90 min. 24/7, 365 days including bank holidays.
Is a Gas Safe registered engineer required for all gas work in London?
Yes — the Gas Safety (Installation and Use) Regulations 1998 make it a legal requirement. All our engineers are Gas Safe registered. Landlords must have an annual CP12 check by a Gas Safe engineer.
What can cause a gas smell in a London flat?
Faulty appliance, corroded or loose pipe connection (common in pre-1970s London properties), failed pilot light gas valve, or sulphur-like odours from other sources (deceased rodents in Victorian duct spaces can mimic gas). Always treat as real until confirmed safe.
What does an emergency gas engineer check in London?
Identify leak source with detection equipment → isolate → tightness test → repair or issue ID/AR notice → re-light and test appliances → Gas Safe work notification. On boiler breakdowns: full diagnosis + repair in same visit where parts are available.
How much does an emergency gas engineer cost in London?
Emergency callout + first hour: £120–£180. Common repairs: thermocouple £85–£150, gas valve £150–£350, boiler PCB £200–£500, gas pipe repair £150–£600 (access-dependent). CP12 gas safety certificate: £75–£95. Written quote before any repair.
Related Services
Gas Emergency? We're Ready 24/7.
Gas Safe registered · 60-min response · All 33 boroughs · No call-out fee
📞 Call 020 0000 0000 — 24/7