//LET’S FIX IT
Gas Safe Engineer in London – 24/7 Emergency Gas & Boiler Repairs
Qualified & Certified Engineers • Fair Prices • No hidden fees
Need a Gas Safe engineer in London? OSO Group provides 24/7 emergency Gas Safe engineers across London and nearby areas. We aim to arrive in ~1 hour to safely diagnose and repair boilers, gas appliances, ignition or pressure faults, flue/ventilation issues, and suspected gas leaks. Our Gas Safe–registered engineers explain everything clearly and agree the price before we start.
CERTIFIED
GAS SAFE
FAIR PRICES
QUALITY

//GAS SAFE ENGINEER
Our gas repair services
- Emergency gas engineer (suspected gas leaks, make-safe, isolation, tightness tests)
- Boiler repairs (system, regular; ignition, pressure, fans, valves)
- Annual boiler service & safety check (combustion, flue integrity, seals)
- Landlord Gas Safety Certificates — single homes & portfolios
- Gas leak detection & pipework repairs (pressure testing, tracing, capping/uncapping)
- Gas hob/cooker install & disconnect (commissioning, bayonet/flex, safety checks)
- Gas fire service & safety checks
- Flue & ventilation checks (spillage/dilution tests, seals)
- Carbon monoxide alarms (supply, installation, testing)
- New/Replacement boilers (survey, quote, install, register warranty)
- Advice & coordination for meter/regulator issues (we liaise with your supplier; suppliers move meters)
// SAFETY
Our Gas Engineer Services
We offer a full range of domestic and commercial gas services, including:
Emergency Gas Engineer (24/7):
24/7 response for gas leaks, make-safe work, isolation, and pressure testing.
Boiler Repairs:
Expert repairs for system and regular boilers, including ignition, pressure, and component faults.
Boiler Servicing & Safety Checks:
Annual servicing with combustion analysis and full flue safety inspections.
Landlord Gas Safety Certificates (CP12):
Legal gas safety inspections and certification for single properties and portfolios.
Gas Leak Detection & Pipework Repairs:
Accurate leak tracing, pressure testing, and professional pipe repairs.
Gas Hob & Cooker Installation:
Safe installation, disconnection, commissioning, and compliance checks.

Quick and easy 4-step journey
01
CONTACT US ➔
Call or message us anytime, day or night. Our team will quickly assess your issue and guide you on the next steps.
02
BOOK AN ENGINEER ➔
We arrange a qualified plumber, gas, electrician or heating engineer near you and confirm the fastest possible arrival time.
03
FAST FIX ON-SITE ➔
Your engineer arrives fully prepared to diagnose and resolve the problem, often completing repairs the same day.
04
JOB COMPLETED
Once the job is done, we ensure everything works safely and efficiently.
//COVERAGE
UK-Wide Coverage
Our certified engineers are on call 24/7, covering all major UK cities and surrounding areas. Whether you’re in Central London, Birmingham, or a nearby town, we guarantee fast response times and expert service. Average emergency ETA ~1 hour.
- Greater London
- Kent
- Oxfordshire
- Southampton
- Northampton
- Bristol
- Birmingham
- Sheffield
- Leeds
- Others
//ABOUT US
Why choose us

Common Gas Issues We Resolve
Unsafe or non-compliant appliances
Gas leaks and low gas pressure
Boiler breakdowns and error codes
Pilot light and ignition failures
Faulty gas valves and controls
Carbon monoxide risks
Poor combustion or flue issues
Our Gas Service Process
- Inspection & Diagnosis
We assess the issue thoroughly using approved testing methods and diagnostic tools. - Make Safe & Repairs
Immediate safety actions are taken, followed by efficient repairs—often completed on the first visit. - Testing & Compliance Checks
All systems are tested for safety, efficiency, and compliance with Gas Safe regulations. - Advice & Aftercare
We provide clear guidance on maintenance, efficiency, and preventing future issues.

//KNOW-HOW
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Having a problem?
We’ll fix it today!
Contact us anytime, our team is always happy to help.
