Gas Geyser
Installations & Replacements

Certified, 12-month workmanship warranty, save on electricity.

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Call 021 200 5887 (tap to call)

Wall-mounted water heating unit in modern kitchen

Residential water heating unit in bathroom setting

Energy-efficient water heating unit for indoor use

Digital temperature-controlled water heating system

Compact water heating unit for residential property

Certified Gas Installations

SANS 10087 compliant and SABS approved certification badge

Gas Geyser Installation Specialists in Cape Town

Our Gas Geyser Services in Cape Town

Residential geyser design and consultation services

Design and consulting service

One of our qualified technicians will inspect your premises to determine the most advantageous solution to suit your needs and consult with you on all the available options.

Water heating system pipework and connections

Installation and related pipework

We install geysers of every type and size to residential and commercial clients. All Installations include the pipework, as well as all necessary valves and fittings required for a complete working solution.

Plumbing

All related plumbing work is performed by our in-house plumbers in accordance with industry standards.

Hot water system maintenance and servicing

Maintenance and services

We offer maintenance and servicing to existing installations, ensuring that piping and fittings are in optimal condition.

Inspections and Certificates of Compliance (COC) icon

Inspections and CoCs

We conduct inspections and can also issue a Certificate of Conformity (CoC), also called a certificate of compliance, in accordance with SANS regulations.

Leak detection

Using state-of-art sniffer devices, we can detect the smallest of leaks within your installation, giving you peace of mind.

Our Gas Installation Process

We inspect your property (or discuss it by phone), recommend the right geyser size and give you a formal quotation.

We supply the geyser, run the gas and water pipework, and mount and commission the unit, usually within one day.

Every installation is pressure-tested and issued with a SANS 10087-1 compliant Certificate of Conformity (CoC).

We service and maintain your installation to keep it running safely and efficiently.

Trusted Across Cape Town

See what our clients have to say about our services.

    
 
 
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   Konstant van Huyssteen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great communication and great service.
  
 
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   Muhammad Ali Mo 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very happy with the service. Came out on the same day and installer even assisted with resolving an issue which would have prevented us from being compliant. Professional and efficient. Highly recommended!
  
 
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   thesaltroad 
 
 
 
 Trustindex verifies that the original source of the review is Google. fantastic, efficient, professional and very well priced. great job.
  
 
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   Wilhelm Wasserman 
 
 
 
 Trustindex verifies that the original source of the review is Google. From the initial contact the interaction was professional.  I received prompt feedback from Helicia at Core Gas Installations.
The installation team was on time, professional and their work was neat and tidy.
Thank you
  
 
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   Andy Lawler 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent admin, excellent service and excellent result, thank you
  
 
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   Ruth Kamanga 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent 👌 service highly recommended
  
 
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   Kumi Visagie 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick turnaround time in response and service. I experienced the team as knowledgeable and thorough.
  
 
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   Colleen Bradley 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you for such a neat and professional job. Everything is so well organized!
  
 
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   rowen govender 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great people ! And great work

Benefits of a Gas Geyser

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Works during load shedding (most models)

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Save on electricity

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Energy efficient

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Fast heating

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No burst-geyser risk

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Lower long-term costs

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Eco-friendly

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Solar compatible

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Space saving

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Works in low pressure

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Off-grid capable (most models)

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Safe when installed correctly

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Long lifespan

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Flexible for small and large homes.

Gas Geyser Pricing Guideline

12 litre

1 shower or bath at a time

Swap from R9 900 New installation from R17 000

Prices incl VAT, as at Oct 2026

16 litre

2 showers or baths at a time

Swap from R11 500 New installation from R18 600

Prices incl VAT, as at Oct 2026

20 litre

3 showers or baths at a time

Swap from R15 000 New installation from R22 000

+ about R1 600 if a plug point is needed. Prices incl VAT, as at Oct 2026

26 litre

4 showers or baths at a time

Swap from R20 300 New installation from R27 500

+ about R1 600 if a plug point is needed. Prices incl VAT, as at Oct 2026

Kitchen only? A small 5 litre geyser: swap from R6 400, new installation from R11 900.

Gas bottle extra: 9 kg from about R900, 19 kg from about R1 500, 48 kg from about R3 200 (gas and cylinder deposit).

* Prices include the geyser, installation, travel and VAT. Gas bottles are extra.

A swap replaces your gas geyser with a new one in the same place. A new installation also includes up to 10 m of gas pipe and 15 m of water pipe; the gas bottle is extra (9 kg for the 5 litre, 19 kg for 12 and 16 litre, 48 kg for 20 and 26 litre). A bottle cage is an optional extra. Every installation includes a pressure and leak test and your gas Certificate of Conformity (CoC). Gas back-up for an existing solar geyser adds about R1 100. Prices vary with access to the geyser and the pipework needed; your final price is confirmed in a formal quotation after the site visit.

What Determines The Price Of Gas Geysers?

Gas geyser prices in South Africa are affected by the following:

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The job: swapping a gas geyser, a new installation, or gas back-up for a solar geyser

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How many showers or baths run at the same time, or a kitchen on its own (this sets the geyser size)

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Gas geyser brand (e.g. Bosch, Rinnai, Dewhot, Totai, Paloma)

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Gas bottles and extras, such as a bottle cage, a weather cover or a plug point

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Distance to your home and access to the geyser

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Labour and materials for the gas and plumbing work

Gas Geyser Vs Electric Geyser: What’s The Difference?

CONSIDERATION

Running Cost

GAS GEYSER

Lower energy cost and only the required amount of water is heated

ELECTRIC GEYSER

Higher running cost and energy to keep water warm all day.

CONSIDERATION:

Initial Purchase Price

GAS GEYSER

Budget-friendly with a range of options

ELECTRIC GEYSER

Costly if installed according to correct SANS regulations

CONSIDERATION

Heating Time

GAS GEYSER

Water is heated instantly and on demand

ELECTRIC GEYSER

Water takes some time to heat up initially

CONSIDERATION

Reliability

GAS GEYSER

Always available if gas bottles are kept full

ELECTRIC GEYSER

Can’t function during power outages or loadshedding

Approximate Gas And Water Consumption For Gas Geysers

Geyser size (litres a minute): 5 Lt

Showers or baths at the same time

Kitchen only

Gas Consumption LPG (full flame)

0.8kg/hr

Water Flow Max

300lt/hr

Geyser size (litres a minute): 12 Lt

Showers or baths at the same time

1

Gas Consumption LPG (full flame)

1.8kg/hr

Water Flow Max

720lt/hr

Geyser size (litres a minute): 16 Lt

Showers or baths at the same time

2

Gas Consumption LPG (full flame)

2.6kg/hr

Water Flow Max

960lt/hr

Geyser size (litres a minute): 20 Lt

Showers or baths at the same time

3

Gas Consumption LPG (full flame)

2.9kg/hr

Water Flow Max

1 200lt/hr

Geyser size (litres a minute): 26 Lt

Showers or baths at the same time

4

Gas Consumption LPG (full flame)

3.9kg/hr

Water Flow Max

1 560lt/hr

Geyser size (litres a minute)	5 Lt	12 Lt	16 Lt	20 Lt	26 Lt
Showers or baths at the same time	Kitchen only	1	2	3	4
Gas Consumption LPG (full flame)	0.8kg/hr	1.8kg/hr	2.6kg/hr	2.9kg/hr	3.9kg/hr
Water Flow Max	300lt/hr	720lt/hr	960lt/hr	1 200lt/hr	1 560lt/hr

About these figures:

"Gas consumption" is the most a geyser burns at full flame, with hot water running at its top flow. A shower burns far less, because the burner turns down to match the flow: about 1.2 kg an hour in winter and 0.8 kg in summer for a 7 litre-a-minute shower, whatever the geyser size.

One Geyser Or Two?

One gas geyser can supply up to four showers or baths at the same time (26 litre).

Sometimes two smaller geysers work better than one large one: when a home needs more than a 26 litre can give, or when the bathrooms and kitchen are far apart. A geyser close to each set of taps brings hot water there sooner and cuts the heat lost in long pipes; a far kitchen can have its own small 5 litre geyser. Our technician sizes and places them at the site visit.

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SANS Compliance & Gas Certificates of Compliance (CoC)

In South Africa, all gas installations must comply with SANS 10087-1 and be carried out by a SAQCC-registered gas installer. An unregistered installation is illegal, dangerous and can void your household insurance. Every gas geyser installation we complete is issued with a Certificate of Conformity (CoC), the gas certificate of compliance you will need for insurance claims and when selling your property.

Areas We Serve

We install gas geysers throughout Cape Town and the Western Cape, including the Northern Suburbs (Bellville, Durbanville, Brackenfell, Kraaifontein, Kuils River, Parow, Goodwood), the Southern Suburbs, Table View and the West Coast, Somerset West, Stellenbosch and Paarl.

Frequently Asked Questions

How much does gas geyser installation cost in South Africa?

With the geyser, installation, travel and VAT included, a gas-for-gas swap starts from about R9 900 and a new installation from about R17 000, up to about R27 500 for a large home with a 26 litre geyser (about R1 600 more if a plug point is needed). A new installation also needs a gas bottle: from about R1 500 for 19 kg or R3 200 for 48 kg. A small kitchen geyser starts from about R6 400 as a swap. Prices as at October 2026; your final price is confirmed in a formal quotation after the site visit.

Can I install a gas geyser myself?

No. By law, gas installations must be done by a SAQCC-registered installer and certified with a CoC. A DIY installation is illegal and will void your insurance.

How long does a gas geyser installation take?

Most residential installations are completed within a day, including pipework, mounting, testing and certification.

What size gas geyser do I need?

Go by how many showers or baths run at the same time, not by bedrooms. One at a time needs a 12 litre, two a 16 litre, three a 20 litre and four a 26 litre geyser, with the kitchen tap allowed for. Water flow, water pressure and the number of people using hot water at once also play a role: a bath or a large rain shower can mean one size up. A home that needs more than a 26 litre, or has taps far apart, may be better served by two geysers, and a kitchen on its own can run on a small 5 litre geyser. Our technician confirms the size on site.

Does a gas geyser work during load shedding?

Yes, for most gas geysers: they heat water on demand without electricity, so you keep hot water through power cuts. The 20 and 26 litre geysers we fit need a plug point, so they stop in a power cut unless you have backup power. Ask us which one suits your home.

How much gas does a gas geyser use per month?

Based on our own installations, showers take about 3 to 4.5 kg of LPG per person per month: one short shower a day with a water-saving head. At R37.08 per kg (Western Cape maximum retail price, October 2026), that is about R110 to R170 per person a month. Longer or rain showers, baths, winter and kitchen use add more.

People who shower	LPG a month	About a month
1	3 to 4.5 kg	R110 to R170
2	6 to 9 kg	R220 to R335
3	9 to 13.5 kg	R335 to R500
4	12 to 18 kg	R445 to R665

Note: Showers only. Based on our own installations (not a survey). Gas price: Department of Mineral and Petroleum Resources, from 7 Oct 2026; it changes monthly. The first bottle in your estimate includes the cylinder deposit; a refill is the gas only.

How long does a gas bottle last?

For one short shower a day each, a 19 kg bottle lasts about 4 to 6 months for one person, 2 to 3 months for two, 6 to 9 weeks for three and 4½ to 7 weeks for four. A 48 kg bottle lasts about two and a half times as long. Longer showers, baths and winter empty a bottle faster.

Can I replace my electric geyser with a gas geyser?

Yes. We fit the gas geyser on an outside wall and take your electric geyser out of the hot water circuit, unless you ask us to keep it. It is priced as a new installation: from about R17 000 for a 12 litre geyser, plus a gas bottle (October 2026). Our technician confirms the size and position at the site visit.

Can a gas geyser be installed inside the house?

SANS 10087-1 does allow some gas geysers to be installed indoors, with the right model, ventilation and flue. We prefer to be cautious and don’t install them indoors: we fit gas geysers on an outside wall, which is safer, and our prices are for that position. Our technician will advise you on the best position at the site visit.

What size gas geyser do I need for 2 or 3 bathrooms?

Count the showers that run at the same time, not the bathrooms: two at once needs a 16 litre geyser, three a 20 litre, and if only one ever runs at a time a 12 litre is enough. Water flow, water pressure and the number of people using hot water at once also play a role, so our technician confirms the size on site.