Gas Leak Detection & Repair in Streatham | MAK Plumbing
Gas Leak Detection & Repair in Streatham
Need gas leak detection in Streatham? Don’t wait. MAK Plumbing’s Gas Safe registered engineers use specialist electronic gas detectors to locate leaks quickly and accurately across all appliances and pipework — and where possible, we carry out the gas leak repair on the same visit.
If you can smell gas right now — leave the property, call 0800 111 999 immediately.
What To Do If You Suspect A Gas Leak
Act quickly — follow these steps in order
Turn Off the Gas
Locate your Emergency Control Valve (ECV) — usually next to your gas meter — and turn it to the off position (handle at 90° to the pipe). This isolates the gas supply to your entire property.
Ventilate the Property
Open all doors and windows to let gas disperse. Do not operate any electrical switches, light switches, or naked flames — even a light switch spark can ignite accumulated gas.
Leave the Building
Get everyone out of the property and move away from the building. Do not re-enter until the property has been declared safe by a Gas Safe engineer.
Call the Gas Emergency Line
Call 0800 111 999 (free, 24/7). This is the National Gas Emergency Service operated by SGN and Cadent. They will attend to make the supply safe.
Call Us to Locate & Repair
Call MAK Plumbing on 07900 247 384. Once the emergency service has made it safe, we attend to locate the exact source of the leak and carry out a permanent repair.
Important: What SGN Will & Won’t Do
When the gas emergency service (SGN or Cadent) attends, they will isolate the supply and make it safe — but they will not locate, investigate or repair the leak. It is your responsibility as the property owner to arrange for a Gas Safe registered engineer to find and fix the fault before the supply can be reinstated. That’s where we come in.
Our Gas Leak Detection Process in Streatham
Thorough, systematic and carried out by Gas Safe registered engineers
Specialist Electronic Gas Detectors
We use calibrated electronic combustible gas detectors to sweep appliances, joints, pipework and meter connections. These instruments detect trace levels of natural gas that are completely undetectable by smell alone — essential for finding slow or concealed leaks.
Inspection of All Gas Appliances
We systematically check every gas appliance in the property — boilers, cookers, hobs, gas fires and any other installation. Leaks commonly occur at burner seals, valve bodies, flexible connectors and gas cock joints on appliances.
Pipework & Installation Testing
We carry out tightness testing on the gas installation to identify any pressure drop, then use the detector to pinpoint the exact fault location — whether at a compression fitting, a union joint, a valve or a section of pipe.
Repair on the Visit Where Possible
Where the leak is accessible — at a joint, valve, flexible connector or appliance connection — we carry out the repair on the same visit. We carry fittings, sealant compounds and gas valves on the van for most common repairs.
Concealed & Underground Leaks
Some leaks occur in pipework buried within walls, floors or underground. Where a concealed leak is identified and the section cannot be accessed or repaired, we may recommend installation of a new gas pipe run — routed accessibly to Gas Safe standards.
Post-Repair Tightness Test & Sign-Off
After every repair we carry out a full gas tightness test to confirm the installation holds pressure and is gas-safe before the supply is reinstated. You’ll receive documentation of the work carried out by our Gas Safe registered engineer.
Where Gas Leaks Commonly Occur
Knowing the common culprits helps us locate leaks faster
Boiler Connections
Gas valve body, isolation cock joints and flexible gas connectors on the boiler
Gas Cooker & Hob
Flexible hose connectors, burner seals and gas tap valves that wear over time
Gas Fire & Log Burner
Inlet connections, pilot assembly fittings and obsolete or corroded valve units
Meter & Meter Connections
Joints at the meter inlet and outlet, the Emergency Control Valve (ECV) and meter union
Pipework Joints & Fittings
Compression fittings, soldered joints and unions that have corroded or been disturbed
Buried or Concealed Pipe
Old steel pipework buried in screed or concealed in walls that has corroded from the outside
Why Choose MAK Plumbing for Gas Leak Detection in Streatham?
Local, qualified and equipped to find and fix the problem fast
Gas Safe Registered
All our engineers are Gas Safe registered (Reg: 939043). Only a Gas Safe engineer is legally permitted to work on gas installations — never use an unregistered tradesperson.
Fast Response
Based in Streatham, we cover all of South London and aim to attend gas leak investigations promptly — same day in most cases.
Specialist Detection Equipment
We use professional electronic gas analysers — not just soap solution — to accurately detect even trace leaks across all appliances and pipework.
Repair on the Day
We carry gas fittings, valves and flexible connectors on the van. Where the repair is accessible, we fix it on the same visit so your gas can be reinstated without delay.
Gas Leak Detection Pricing
Transparent fixed-rate pricing — you know the cost before we start
| Service | Price |
|---|---|
| Gas Leak Detection — Investigation & Tightness Test | £95/hour |
| Gas Leak Repair — Joint, Fitting or Flexible Connector | From £95 + parts |
| New Gas Pipe Installation (for concealed / corroded pipework) | POA |
| Appliance Isolation & Capping Off (unsafe appliance) | From £70 |
| Post-Repair Gas Tightness Test & Sign-Off | Included |
All prices include VAT. Parts charged at cost. We always quote before proceeding with any repair.
Frequently Asked Questions
I can smell gas — what should I do first?
Turn off your Emergency Control Valve (ECV) at the meter, open all windows and doors, do not use any electrical switches or naked flames, leave the property and call the National Gas Emergency Service on 0800 111 999 (free, 24/7). Once they have attended and made it safe, call us to locate and repair the leak.
Will SGN fix my gas leak?
No. The National Gas Emergency Service (SGN or Cadent, depending on your area) will attend to make the gas supply safe — typically by isolating the supply at the meter or capping off the affected section. They do not carry out repairs to internal pipework or appliances. You will need to appoint a Gas Safe registered engineer, such as MAK Plumbing, to investigate the fault and repair it before the supply can be reinstated.
Can you find a gas leak if I can’t smell it?
Yes. We use electronic combustible gas detectors that identify trace amounts of natural gas far below what is detectable by smell. Slow leaks at corroded joints or buried pipework are often completely odourless at the point of discovery. A gas tightness test will confirm whether the installation is holding pressure, and the detector will then pinpoint the location.
What happens if the leak is in a buried pipe?
If the leaking pipe is concealed within a wall, floor screed or underground and cannot be practically accessed and repaired, we will advise on installing a new accessible gas pipe run. This is routed to current Gas Safe standards and bypasses the affected section. We provide a quote before any additional work proceeds.
Can you repair the leak on the same day?
In most cases, yes. The majority of gas leaks occur at accessible fittings, valve connections or flexible connectors that can be repaired on the visit. We carry gas fittings and parts on the van. Where a more involved repair is needed — such as a pipe replacement — we’ll make it safe, advise you on the options and return to complete the work.
Do I need to be Gas Safe registered to check for gas leaks?
Yes. Any investigation, testing or repair of a gas installation must be carried out by a Gas Safe registered engineer. It is illegal for an unregistered person to work on gas in the UK. Always ask to see a Gas Safe ID card before allowing anyone to work on your gas. MAK Plumbing’s Gas Safe registration number is 939043 — you can verify this at gassaferegister.co.uk.
Where is my Emergency Control Valve (ECV)?
The ECV is the lever or handle located directly next to your gas meter — usually in a meter cupboard, on an outside wall, or under the stairs. To turn it off, rotate the handle 90° so it is at a right angle (perpendicular) to the gas pipe. If the handle moves in line with the pipe, the gas is on; at 90° it is off. If you’re unsure, call us and we can guide you through it.
Related Services
Suspect a Gas Leak in Streatham?
Don’t ignore it. Our Gas Safe engineers will locate and repair the leak — usually on the same visit.
07900 247 384Mon-Fri: 8am-6pm | Sat: 8am-4pm | Gas Safe Reg: 939043
Gas Emergency Hotline (24/7, free): 0800 111 999