Gas Leak Detection & Repair in East London
Suspect a gas leak? Gas Safe registered engineers locate and repair leaks safely across East London. If you can smell gas now, call 0800 111 999 first.
Gas Safe Registered · 587401
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Local Engineers
Upfront cost — no obligation A gas leak is one of the most serious problems in any home, and it should only ever be handled by a Gas Safe registered engineer. Gas First locates and repairs gas leaks across East London and Essex using proper detection equipment, finding the source quickly and making your home safe. If you can smell gas at this moment, act first: open windows, avoid anything that could spark, turn off the supply at the meter if safe, and call the free National Gas Emergency Service on 0800 111 999 — then call us to find and fix the cause.
What does a gas leak smell like — and what are the other warning signs?
The clearest sign is the distinctive “rotten egg” smell added to gas. Others include a hissing sound near pipework or appliances, a pilot light that keeps blowing out, dead or dying houseplants near the suspected area, or an unusually high gas bill. Physical symptoms such as headaches, dizziness or nausea that improve when you leave the house can indicate a leak or carbon monoxide — both need urgent attention.
The clearest sign is the distinctive “rotten egg” smell added to gas.
How does a Gas Safe engineer locate and fix a gas leak?
We carry out a gas tightness test to confirm whether the system is losing gas, then trace the leak to its source — whether it’s a joint, a length of pipework, or a faulty appliance connection. Once located, we repair or replace the affected component and re-test to confirm the system is sound and safe before signing off.
We carry out a gas tightness test to confirm whether the system is losing gas, then trace the leak to its source — whether it’s a joint, a length of…
What's the difference between a gas leak and carbon monoxide?
Carbon monoxide (CO) is colourless and odourless, produced when gas doesn’t burn properly. A CO alarm is essential in any home with gas appliances. If your alarm sounds, or you feel unwell with headaches or dizziness that ease outdoors, get fresh air immediately and call for help. We can check your appliances are burning safely as part of leak detection.
Carbon monoxide (CO) is colourless and odourless, produced when gas doesn’t burn properly.
Can you try to find and fix a gas leak yourself?
Gas work is illegal for anyone who isn’t Gas Safe registered, and for good reason. If you suspect a leak, never try to trace or fix it yourself. Make the area safe, call the emergency line, and let a registered engineer handle the repair. We’re local and respond quickly.
Gas work is illegal for anyone who isn’t Gas Safe registered, and for good reason.
Frequently Asked Questions
What does a gas leak smell like?
Gas has a distinctive added smell, often described as rotten eggs or sulphur. If you notice it, treat it as urgent.
What should I do if I smell gas?
Open windows and doors, avoid electrical switches and naked flames, turn off the gas at the meter if safe, leave if the smell is strong, and call 0800 111 999. Then call us to locate and repair the cause.
How do you find a gas leak?
We perform a tightness test to confirm a loss of gas, then trace it to the exact source using detection equipment, repair it, and re-test to confirm the system is safe.
Is a gas leak dangerous?
Yes — leaks risk fire, explosion and carbon monoxide exposure. They must only be handled by a Gas Safe registered engineer.
Should I have a carbon monoxide alarm?
Yes. A CO alarm is strongly recommended in any home with gas appliances and can be life-saving.
How much does gas leak detection cost in East London?
Gas leak detection starts from £89. The final price depends on how involved the trace and repair are, and we explain the cost before any work goes ahead. If you can smell gas now, turn off the supply at the meter, open windows, avoid switches and naked flames, and call the National Gas Emergency line on 0800 111 999.
What Our Customers Say
Rated 5 stars by customers across East London
“Emergency callout resolved quickly.”
Thofael Ahmed | Stratford, East London
“Boiler service and leak detection.”
Jack Fargher | Ilford, East London
“Emergency boiler repair, fast and fair price.”
Hanif Ali | Bow, East London
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Why Choose Gas First Ltd?
Professional, reliable, and certified gas engineering services across East London
Gas Safe Registered
All work carried out by fully certified Gas Safe engineers
Fast Emergency Response
Quick attendance for urgent gas & heating issues across East London
Transparent Pricing
Fair quotes with no hidden charges — you know the cost upfront
5-Star Customer Service
Rated highly by homeowners & landlords across East London
Experienced Local Engineers
Skilled team covering all East London boroughs
Domestic & Commercial
Services for homes, rentals, and businesses
Areas We Cover
We provide gas, boiler, and plumbing services across East London and nearby areas.
Need a Reliable Gas Engineer in East London?
Contact Gas First Ltd today for fast, professional gas, boiler, and plumbing services across East London.