Carbon Monoxide Testing Adelaide
Make sure your gas heaters are burning safely with professional carbon monoxide testing in Adelaide. We offer upfront fixed pricing and a lifetime labour warranty.
199 Google reviews
- 5.0 on GoogleRead our 199 Google reviews
- Lifetime labour warrantyOn our workmanship
- Open 24/7Same rate after hours
- $50 off your first servicePensioner and veterans discounts
Know Your Gas Appliances Are Burning Safely
Carbon monoxide has no colour or smell, so the only reliable way to know your gas appliances are safe is to have them tested.
When gas heaters, cooktops or water heaters burn poorly or lack ventilation, they can release carbon monoxide into your home. Our carbon monoxide testing across Adelaide is carried out by a licensed gasfitter trained in carbon monoxide spillage, and Simms Plumbing & Air Conditioning checks every appliance is burning safely.
What a Carbon Monoxide Test Actually Checks
Here is what our carbon monoxide testing covers on the gas appliances in your Adelaide home:
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Testing the Appliance for Spillage
We check whether your gas heater or appliance is spilling combustion gases back into the room, using a calibrated meter to measure carbon monoxide in the air right around it.
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Checking the Flame and Combustion
A healthy gas flame burns crisp and blue, so we inspect how each appliance burns, since a lazy yellow or orange flame can be a sign of incomplete, carbon-monoxide-producing combustion.
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Looking at Ventilation and Negative Pressure
We check the room has enough fixed ventilation and look for negative pressure that can pull carbon monoxide back inside, which is a leading cause of spillage from open-flued heaters.
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Inspecting the Flue and Venting
On flued heaters we inspect the flue and venting for blockages, corrosion or poor draught, since a flue that cannot clear exhaust safely is a common source of carbon monoxide.
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Checking the Appliance Condition
We look over the heater's burner, heat exchanger and seals for cracks, rust or wear, because a damaged appliance is far more likely to leak carbon monoxide into your home.
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A Clear Result and Next Steps
After testing, we tell you plainly whether each appliance is safe to use, and if there is a problem, we explain exactly what needs repairing before you run it again.
Why Carbon Monoxide Testing Is Worth Doing
Carbon monoxide is dangerous precisely because it is so hard to notice, which is why testing matters:
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You Cannot See or Smell It
Carbon monoxide has no colour, smell or taste, so a leaking appliance can go unnoticed for a long time, which is why a proper test is the only reliable check.
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Faulty Heaters Are the Main Risk
Most home cases come from older or poorly maintained gas heaters, which is exactly why South Australia's safety regulator advises you to regularly service and maintain all your gas appliances.
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Protecting the People Most at Risk
Children, older people, pregnant women and anyone with a heart or breathing condition are more affected by carbon monoxide, so a quick test gives real reassurance for the whole household.
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Real Peace of Mind in Winter
Gas heaters work hardest through the colder months, so a test before winter means you can run them with confidence, knowing they are burning cleanly and venting as they should.
How Our Carbon Monoxide Testing Process Works
Here is how a carbon monoxide test runs for gas appliances in homes across Adelaide:
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Book a Convenient Time
Call us and tell us about your gas appliances, and we book a visit at a time that suits you.
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Inspect Your Gas Appliances
On site, we check each gas heater, cooktop and water heater, looking at how they burn, vent and are installed.
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Test for Carbon Monoxide
Using a calibrated meter, we test for carbon monoxide spillage around each appliance and check the room ventilation and pressure.
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Explain What We Find
We talk you through the results plainly, telling you which appliances are safe and flagging anything that needs attention now.
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Fix Any Problems Found
If an appliance is unsafe, we explain the repair and, as licensed gasfitters, can carry it out for you safely.
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Leave You Informed
We finish by giving you simple advice on running your gas appliances safely and when to book the next test.
Speak to the family today
for same-day service
One call and we'll talk you through your options, with same-day service wherever we can manage it and the same rate after hours, 24/7.
Warning Signs of a Carbon Monoxide Problem
A few signs suggest a gas appliance may be producing carbon monoxide and should be tested:
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A Yellow or Orange Flame
A gas flame should burn blue, so a lazy yellow or orange flame on a heater or cooktop is a classic sign of poor combustion that deserves a proper test.
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Soot, Stains or Heavy Condensation
Dark soot marks or staining around a heater, or unusual condensation on nearby windows when it runs, can point to incomplete combustion and are worth having a gasfitter check promptly.
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Feeling Unwell Only at Home
If headaches, dizziness or nausea ease when you leave home but come back when you return, it is worth ruling out carbon monoxide from a gas appliance with a test.
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An Old or Open-Flued Heater
Older open-flued gas heaters are the highest-risk type, so if yours is ageing or has never been tested, it is well worth having it checked before you rely on it.
Carbon Monoxide Testing for Every Home
We test gas appliances for carbon monoxide at all sorts of properties across southern Adelaide:
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Family Homes
In homes around Aberfoyle Park, Happy Valley and Flagstaff Hill, we test gas heaters, cooktops and water heaters so families can use their appliances safely and confidently right through winter.
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Rentals and Investment Properties
Landlords have a duty to keep gas appliances safe, so Simms tests heaters and appliances, documents the results clearly, and handles any repairs needed to keep tenants safe and compliant.
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Older and Heritage Homes
Older southern-suburb homes often still run ageing open-flued heaters, so we pay extra attention to ventilation and spillage on the appliances most likely to produce carbon monoxide in the home.
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Shops, Offices and Rentals
Businesses with gas heating or hot water near O'Halloran Hill and Reynella East rely on safe appliances, so we test, document and keep staff and customers safe from carbon monoxide.
Fully Licensed Gas Work You Can Trust
Testing and repairing gas appliances is licensed work, so every job we do is fully compliant:
- Certificate IV in Plumbing and Gas, so your appliances are tested and worked on by a fully licensed gas fitter.
- Licensed for gas fitting work in South Australia, with full public liability insurance and the right calibrated testing equipment.
- All gas work meets the AS/NZS 5601 gas installation standard, the national benchmark for safe gas appliances.
- If a test finds a problem, we explain it clearly and only sign off an appliance as safe once it genuinely is.
- A fully licensed, family-owned team, Simms Plumbing & Air Conditioning stands behind every carbon monoxide test across Adelaide.
Licensed, insured, checkable
- SA trade licence
- 315246
- Builders Licence
- BLD341932
- ARC refrigerant licence
- AU066279
- Qualification
- Cert IV Plumbing & Gas
Carbon Monoxide Testing Across Adelaide
What Adelaide Homeowners Say About Our Gas Work
- Google review
“Thoroughly impressed with Daniel. From the moment he came to give a quote to the moment he walked out the door with the completed job he was professional, curteous, and considerate. He went above and beyond to listen to my needs and …”
Angela Niejalke
August 2026 - Google review
“Daniel came out today to unblock a drain for me. He was following up a request that I had only phoned him about yesterday. He arrived promptly and after introducing himself, he clearly communicated to me what the job would entail. As the …”
Janine Brown
August 2026 - Google review
“Very happy with the plumbing service. He cleared the blocked pipe caused by tree roots and cleaned everything properly. He also fixed and added some parts to the inspection points. …”
Geetha Harshani
August 2026 - Google review
“Very pleased with the service we received from Daniel. We needed a new hot water service in Happy Valley and it was arranged with minimum fuss. …”
Andrew Waldie
June 2026 - Google review
“Daniel came and changed our shower taps over for a mixer tap. Great price and thorough work. Also added a pressure reduction valve for us. Highly recommend”
Shane Picken
May 2026 - Google review
“Brilliant service. Searched for evaporative aircon repairs in Happy Valley as ours died on one of the hottest days of summer (43°) before a long weekend. Daniel came out and diagnosed it on a Sunday. …”
Kingsley Smith
January 2026 - Google review
“I had an excellent experience with Simms Plumbing. I contacted Daniel regarding a blocked drain, and he was able to fit me in on the same day. He not only fixed the immediate issue but also conducted an inspection to check for potential …”
Manoj Meemanage
January 2026 - Google review
“I am at Richmond; contacted Daniel to install air con through hi pages which he did within a week. Very informative and professional. Did other extra jobs for us too; appreciate it. …”
prity gurung
January 2026 - Customer testimonial
“Daniel did a great job replacing the water tank pump and outlet. It looks top quality. Daniel was respectful, professional and patient. He showed up when he said he would and communicated with me throughout the job.”
Julie Connell
- Customer testimonial
“I use Simms plumbing gas & Air con as my go to company when my clients are after a reliable plumber. Being a specialist in all 3 major industries makes life for me a lot easier.”
Matt Sheehan
- Customer testimonial
“Simms is very reasonably priced, does a great job with the install, and won't give you the bum steer on what you need. Daniel was fantastic at communicating everything I needed, and also giving me the option of different fittings so I could make an informed decision.”
Scott Willis
- Customer testimonial
“I use Simms plumbing gas & Air con as my go to company when my clients are after a reliable plumber. Being a specialist in all 3 major industries makes life for me a lot easier.”
Matt Sheehan
Why Choose Simms Plumbing & Air Conditioning
For carbon monoxide testing and gas safety, here is what sets our team apart:
199 Google reviews
Run by our family, for your family.
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Twenty-Five Years of Gas Experience
Director Daniel Simms brings twenty-five years of hands-on gas experience, so your appliances are tested by someone who knows exactly what a safe, well-burning gas heater should actually look like.
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One Fixed Price, Agreed Upfront
You get a single fixed price for the testing before we start, so there is no hourly clock running and no surprise figure waiting for you on the final invoice.
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Fifty Dollars Off Your First Service
New customers get fifty dollars off their first job, so booking a first carbon monoxide test or gas service with us costs less than you might first expect it to.
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We Turn Up When We Say
Your appointment is booked for a set time and we keep to it, so you are not left waiting around the house all day for us to actually turn up.
Run by our family, for your family.
Worried Your Gas Heater Might Not Be Safe?
Do not second-guess it. Call Simms Plumbing & Air Conditioning on 0420 104 118 to book carbon monoxide testing in Adelaide, carried out by a licensed gas fitter, with upfront fixed pricing and a lifetime labour warranty on any repairs.
Frequently Asked Questions About Carbon Monoxide Testing
These are the questions Adelaide homeowners ask us most about carbon monoxide and gas safety:
How much does carbon monoxide testing in Adelaide cost?
We quote a clear fixed price upfront, based on how many gas appliances you want tested. Any repairs found are quoted separately before we carry them out.
How often should gas heaters be tested?
Industry and safety guidance generally recommends having gas heaters serviced and tested at least once every two years, and sooner if you notice any of the warning signs.
What are the symptoms of carbon monoxide poisoning?
Common symptoms include headaches, dizziness, nausea and tiredness, which are easy to mistake for a cold or flu. If you suspect it, get fresh air and seek medical advice.
Can you test all my gas appliances?
Yes. We can test gas heaters, cooktops, ovens and gas water heaters, checking each one for carbon monoxide spillage, combustion and ventilation in the one visit.
Should I get a carbon monoxide alarm?
A CO alarm is a sensible extra layer of protection that warns you of a leak, but it does not replace having your gas appliances properly tested and serviced.
Is your carbon monoxide testing guaranteed?
Yes. Simms Plumbing & Air Conditioning is fully licensed for gas work, and we back any repairs with a lifetime labour warranty, so a fixed fault stays fixed.