Gas Repairs London
If you smell gas or suspect carbon monoxide, do not use flames or electrical switches. Leave the property and call the National Gas Emergency Service on 0800 111 999 from a safe location. For non-immediate domestic gas faults, Plumbing 4 London provides 24/7 help across London within the verified Gas Safe scope.

Why Choose Us for
Domestic Gas Repairs?
Gas work needs a clear safety process and a correctly registered engineer. Plumbing 4 London provides domestic natural-gas repairs within the verified categories of the Gas Safe registration held by Alexandru Cirstea, licence 6088497.
24/7 Response
For repair enquiries after the emergency safety route, we are available 24/7 and aim to attend within the hour, subject to location, traffic and engineer availability.
Verified Gas Safe Scope
Gas work is carried out by Alexandru Cirstea, Gas Safe licence 6088497, within the listed domestic natural-gas categories.
Transparent Estimate
We assess the fault and explain the proposed repair and cost before work begins, with no hidden additions to the agreed scope.
Safety Comes First
If gas or carbon monoxide is suspected, leave the property and call National Gas on 0800 111 999 before arranging follow-on repair work.

Domestic Gas Repair
Services We Cover
After an immediate danger has been handled by the National Gas Emergency Service, we can assess and repair domestic natural-gas faults in the categories shown below. Coverage for a particular appliance or fault is confirmed when you book.
Domestic Gas Pipework
Assessment and repair of faults affecting domestic natural-gas pipework within the registered scope.
Boilers and Central Heating
Diagnosis and repair of domestic natural-gas boiler and central-heating faults within the registered categories.
Cookers, Hobs and Fires
Domestic natural-gas work for cookers, hobs and fires, with the exact appliance and fault confirmed before attendance.
Domestic Water Heaters
Assessment and repair of domestic natural-gas water-heater faults where the appliance and work fall within the registered scope.




What our clients say
We take pride in providing top-tier property maintenance services to clients throughout London.
Posted on Google HarryTrustindex verifies that the original source of the review is Google. Our boiler suddenly stopped working on a freezing morning. I contacted UK Gas Engineer Ltd and they had an engineer out the same day. He quickly found the fault explained everything in simple terms and had the heating back on within the hour. Fantastic service.Posted on Google KashifTrustindex verifies that the original source of the review is Google. Very reliable and honest team. They explained the issue clearly before starting the work. Fair pricing and quality service.Posted on Google Allison WhitneyTrustindex verifies that the original source of the review is Google. We had a leaking bathroom drain and Alex was quick to respond and fix the issue. Prompt and professional, I would highly recommend!Posted on Google Ben SheltonTrustindex verifies that the original source of the review is Google. Alex has pulled through and my boiler issues are totally sorted. Expansion vessels replaced, fan and mechanical issues sorted, and yearly maintenance done. Solid guy, solid service. Recommend!Posted on Google Satheesh NadarajahTrustindex verifies that the original source of the review is Google. Can’t speak well enough of Alex - so helpful and prompt with service. Recommend very highly!Posted on Google Serena ReidTrustindex verifies that the original source of the review is Google. Came home from on holiday on 03/01/26 to the boiler not working - not heating or hot water - on one the coldest days of the winter. Was calling round desperately to find emergency plumber at 8pm on a Saturday. Despite calling multiple plumbers, none could come until the Monday...Then there was Alex! He came round on that Saturday night, found the problem and made a plan to replace the broken part. He was AMAZING! He was upfront about costs, timings, issues and part sourcing. Within 72 hours (part sourcing and error code issues that, were unrelated to Alex, were an issue) We had our boiler back working. Very grateful to Alex, who was so in demand and worked like trooper, would 100% recommend himPosted on Google Jasmine KershawTrustindex verifies that the original source of the review is Google. Can’t recommend highly enough! Alex arrived quickly and fixed our leaking water heater in a jiffy. He gave some great, honest advice and charged exactly what he said he would (a very good price). Efficient and friendly - will definitely be saving his number for future plumbing crises.Posted on Google Leo JasminTrustindex verifies that the original source of the review is Google. Alex sorted out all the problem in my boiler, great service and friendly, highly recommended for boiler and heating problems👍
Gas Repair
Frequently Asked Questions
What should I do if I smell gas in my home?
Leave the property, avoid flames and electrical switches, and call the National Gas Emergency Service on 0800 111 999 from a safe location. Follow its instructions before arranging any follow-on repair.
How do I know if a gas fault needs professional attention?
Do not rely on smell, noise or poor appliance performance to diagnose a gas fault. If gas or carbon monoxide may be present, follow the emergency steps above. For a non-immediate boiler, pipework or appliance fault, stop using the affected equipment and arrange a professional assessment.
Who carries out the registered gas work?
Registered gas work described on this page is carried out by Alexandru Cirstea, Gas Safe licence 6088497, and only within the domestic natural-gas categories shown on the register.
Do you provide 24/7 gas repair help in London?
Yes. Plumbing 4 London is available 24/7 for repair enquiries. A suspected gas or carbon-monoxide emergency must first be reported to National Gas on 0800 111 999 from a safe location. We can then discuss follow-on work once the situation is made safe.
What domestic gas repairs are within your verified scope?
The verified domestic natural-gas categories cover boilers, central heating, cookers and hobs, fires, pipework and water heaters. We confirm the exact appliance and required work before accepting the booking.
How much does a gas repair cost?
The cost depends on the fault, access, appliance and parts required. We assess the issue and provide a clear estimate before repair work begins, with no hidden additions to the agreed scope.
Can I perform a minor gas repair myself?
No. Do not dismantle, alter or repair gas pipework or appliances yourself. Use a suitably registered Gas Safe engineer for gas work and follow the National Gas emergency route whenever gas or carbon monoxide is suspected.
How long does a domestic gas repair take?
Timing can only be estimated after the fault and access have been assessed. We explain the proposed work and likely duration before proceeding; more complex faults or parts requirements may require a further visit.
Which parts of London do you serve?
We serve customers across London as a service-area business. Attendance depends on location and engineer availability; we aim to attend within the hour, subject to location, traffic and engineer availability.
How can I reduce gas-safety risks at home?
Follow the appliance manufacturer’s servicing guidance, arrange gas work through a suitably registered engineer, keep vents unobstructed and use a working carbon-monoxide alarm positioned and maintained according to its instructions. An alarm supports safety but does not replace servicing or emergency action.
Gas Repairs Across
London
Plumbing 4 London is a service-area business serving customers across London. We are available 24/7 and aim to attend within the hour, subject to location, traffic and engineer availability. Immediate gas or carbon-monoxide concerns must first be reported to National Gas on 0800 111 999.

What We Cover
Domestic Gas Repairs
Our repair scope is limited to the domestic natural-gas categories verified for Alexandru Cirstea, Gas Safe licence 6088497. The exact appliance, fault and work are confirmed before a booking is accepted.
- Domestic boiler gas faults
- Central-heating gas faults
- Domestic gas pipework
- Cooker and hob gas work
- Domestic gas fires
- Domestic water heaters
- Appliance-specific scope confirmed
- National Gas emergency route first
- Gas Safe registration stated clearly
- Professional fault assessment
- No DIY gas-work advice
- Safe follow-on repairs
- Clear proposed scope
- Manufacturer guidance respected
- 24/7 repair enquiries
- Transparent estimate before work
- No hidden additions to agreed scope
- Guaranteed workmanship
- London service-area coverage
- Attendance subject to availability
- Parts requirements explained
- Boiler repair assessment
- Central-heating repair assessment
- Pipework fault assessment
- Cooker or hob fault assessment
- Gas-fire fault assessment
- Water-heater fault assessment
- Follow-on work after emergency safety
