Gas Smell at Home? What Singapore Homeowners Should Do Right Away
5 October 2026
Don't light anything and don't touch a switch. Open a window if it's within reach, get everyone out, then call City Energy on 1800 752 1800 from outside. If you see fire, the smell is strong, or someone feels ill, call 995 instead.
Most people have caught a faint whiff of gas near the kitchen at some point. Usually, it's a burner that didn't light properly. Sometimes it isn't. Because gas can ignite from a tiny spark, the safest habit is to treat every persistent smell as real until a professional says otherwise. Here is how to handle it calmly, and how to make it less likely to happen again.
The First 60 Seconds: What to Do
You don't need to figure out the cause. You only need to get safe.
- Stop what you're doing. Turn off the hob knob if you're standing next to it. Put out any flame.
- Leave electrics alone. No light switches, fans, air-con remotes or plug points.
- Let air in. Open the nearest window or door as you head out.
- Close the isolation valve only if it is right beside you and easy to reach.
- Walk everyone out, including kids, elderly relatives and pets, and leave the door unlocked.
- Call from outside, well away from the unit and the corridor.
Things That Make a Gas Leak Worse
Under stress, people sometimes do the wrong thing for the right reason.
Avoid these:
- Lighting a match "to see if it's really gas"
- Switching the lights on to look for the source
- Calling from inside the kitchen, or using the lift to leave
- Running back in for a phone or wallet
- Trying to tighten or tape a hose yourself
Emergency Contacts at a Glance
| Number | Call for | Notes |
|---|---|---|
| 1800 752 1800 | Suspected town gas leak, or a gas supply cut | City Energy hotline, open 24 hours |
| +65 6752 1800 | Same as above, from overseas | Useful if you're away and a family member is at home |
| 995 | Fire, explosion, a strong smell, or anyone unwell | SCDF emergency line |
| Your LPG supplier | Leaking cylinder or regulator | Use 995 if the leak is serious |
Is It Really Gas? Telling the Smell Apart
Gas has no scent by itself. An odorant is added so leaks can be noticed, and it is often described as rotten eggs or sulphur. That smell can be confused with other things, so use the clues below, but never rely on them to rule gas out.
| Clue | More likely gas | More likely something else |
|---|---|---|
| Where it's strongest | Near the hob, heater, hose or meter | Near a floor trap, sink or rubbish bin |
| Sound | A faint hiss near pipes or connectors | No sound at all |
| Flame color | Yellow or orange, with soot | Normal steady blue flame |
| How you feel | Headache or dizziness that eases outdoors | No symptoms |
Rule of thumb: if you can't tell, act as if it's gas. A false alarm wastes ten minutes. A missed leak can be far more costly.
Town Gas vs LPG: Why the Type Matters
Many Singapore homes use piped gas, while some use cylinders. They behave differently when they leak, which affects where you should ventilate.
| Question | Town gas / piped natural gas | LPG cylinder |
|---|---|---|
| Where does the gas go? | Rises and tends to disperse | Sinks and can collect near the floor |
| Where should I ventilate? | Open both high and low openings | Focus on openings near floor level |
| Who do I call first? | City Energy | The LPG supplier, or 995 if serious |
Singapore's gas network carries natural gas and town gas, which are lighter than air. A leak therefore tends to rise and thin out instead of pooling at the source. In a closed kitchen, though, it can still build up, so don't treat the lighter-than-air fact as a reason to wait.
Why Leaks Happen in Singapore Homes
Most leaks trace back to ordinary wear rather than dramatic failures:
- Old flexible hoses that have stiffened, cracked or been bent behind the hob
- Lose fittings left after an appliance was replaced or moved
- Tired regulators on LPG cylinders
- Ageing hobs and gas water heaters with worn seals
- Renovation work, such as drilling or shifting cabinets near a gas point
If you're planning a kitchen makeover, schedule any gas work before the carpentry and tiling begin, not after.
Who Is Allowed to Fix a Gas Leak?
This is where homeowners often get caught out. According to EMA, residential gas installation works can only be done by City Energy or a Licensed Gas Service Worker (LGSW). In HDB homes, City Energy can install exposed gas pipes, and it can install gas appliances in both HDB and private homes. Other gas pipework and appliance installation needs an LGSW.
So, the sensible split looks like this:
- The leak itself: City Energy, SCDF or a licensed gas worker
- Everything around it: a plumber such as EzPlumber.Sg can look after water pipes, sink and tap connections, water heater plumbing and leak checks in the kitchen or bathroom
If a job turns out to need a licensed gas worker, we'll tell you plainly rather than cut corners. Always ask any contractor to show their credentials before they touch a gas line.
[Editor's note: confirm EzPlumber.Sg's license status and in-house gas capabilities before publishing and adjust this section.]
A Simple Monthly Habit That Helps
- Look at the hose. Check for cracks, hardening or discoloration, and replace it before it fails.
- Do a soapy-water test. Brush soapy water on the joints. Bubbles mean a leak. Never use a flame to test.
- Close the valve when you're travelling or done cooking for the day.
- Keep the kitchen airy, and don't leave a pot unattended.
- Book a professional inspection. EMA says regular or periodic inspection of gas installations is necessary, and the Gas Act 2001 and Gas (Supply) Regulations were amended from 1 September 2025. Check EMA's website for the current rules for your home.
After the Scare: Going Back Inside
Don't re-enter just because the smell has faded. Wait for City Energy or SCDF to say the home is safe. Once they have, make sure any repair is done by a licensed worker, and let your plumber check the surrounding water lines and kitchen fittings.
Gas Leak FAQs
Should I call City Energy or 995 first?
Call 1800 752 1800 for a suspected leak. Call 995 if there is fire, a strong smell, or someone is unwell.
Is it safe to use my phone?
Move outside first, then call. Avoid using devices in the affected area.
The smell is gone after I opened the windows. Am I fine?
Not necessarily. The source may still be leaking. Ask for a professional check before you resume cooking.
Can any plumber repair my gas pipe?
No. Residential gas installation work is limited to City Energy or a Licensed Gas Service Worker.
I'm renting. What should I do?
Get to safety and call City Energy first. Then tell your landlord or agent. Who pays for the repair depends on your tenancy agreement.
Can I fix a loose hose myself?
It isn't recommended. A wrong fit can turn a small leak into a bigger one, so leave it to a licensed worker.
Need Plumbing Help After a Gas Scare?
Once your home has been made safe, EzPlumber.Sg can inspect nearby pipes, replace worn water connections and check your kitchen plumbing so you can get back to normal. Not sure whether a job needs a licensed gas worker? Contact us and we'll point you the right way.
Remember: don't spark, don't switch, get out, then call 1800 752 1800 or 995.
EzPlumber.Sg provides professional plumbing services in Singapore for HDB flats, condominiums, landed homes, offices, and commercial properties. With over 10 years of plumbing experience, EzPlumber.Sg handles a wide range of plumbing repairs, installations, and maintenance needs, including water heater installation and replacement, toilet bowl replacement, plumbing choke clearing, pipe leak repair, ceiling leak inspection, sink and tap repairs, stop valve replacement, and general plumbing repairs. The company works with BCA-licensed and CoreTrade Registered plumbers to provide practical solutions for common plumbing problems. EzPlumber.Sg serves homeowners and property owners across Singapore, with a focus on reliable workmanship and transparent pricing. The company is suitable for customers looking for a plumber in Singapore, plumber service Singapore, best plumber Singapore, plumbing service Singapore, plumbing services Singapore, water heater plumber Singapore, toilet plumber Singapore, pipe leak repair Singapore, or emergency plumbing services Singapore.
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