If you are shopping for a new geyser in South Africa, there is a reasonable chance the name Kwikot has come up at least once. A Kwikot geyser is one of the most commonly specified units by plumbers across the country, and for many homeowners replacing a burst or ageing geyser, it is often what arrives on the truck without much prior discussion. That is not necessarily a problem, but understanding what you are getting before the work starts is always a better position to be in than finding out after the fact.
This guide covers what Kwikot geysers are, the models and sizes available, what they cost to buy and install in South Africa, what the installation process looks like, and how to decide whether a particular model is the right fit for your home. If your plumber has recommended one, or if you are doing your own research before making a call, this should give you a solid foundation to work from.
Kwikot is a well-established South African geyser brand that manufactures electric storage geysers widely used in residential homes across the country. Their units are available in sizes ranging from 50 litres up to 300 litres and are generally regarded as reliable, readily available, and well-supported in terms of parts and service. A basic Kwikot unit costs between R3,500 and R9,000 depending on the size and model, with full installed costs typically falling between R7,000 and R18,000. They are a practical choice for most standard home setups.
What does buying and installing a Kwikot geyser involve?
At the most basic level, a geyser purchase and installation involves selecting the right size unit, having a registered plumber install it to SANS standards, and ensuring the associated safety components like a pressure control valve, drip tray, and expansion unit are correctly fitted. Kwikot units are designed to work within the South African plumbing and electrical standards framework, which means they are built for local water pressures, electrical supply, and compliance requirements.
The brand manufactures several product lines aimed at different segments of the market. Their standard range is the most commonly installed in residential homes. They also produce a slim-line range for installations where ceiling height or access space is limited, a low-pressure range for homes and areas where the mains water pressure is not sufficient for a standard high-pressure unit, and more recently some higher-efficiency options with improved factory insulation.
One thing worth knowing upfront: when most plumbers recommend a Kwikot, they are usually referring to the standard cylindrical high-pressure unit, which suits the majority of South African homes connected to municipal water supply. If your area has known pressure issues or if your home runs on a rainwater tank or gravity-fed supply, that changes the conversation and you would need a low-pressure unit instead. This is one of those details that sometimes gets skipped in rushed installation decisions and ends up causing problems later.
Models and options available
Understanding the product range is useful because not all units are interchangeable, and choosing the wrong type for your home’s water supply creates real problems.
Standard high-pressure units are the default choice for homes connected to municipal water. They are designed to handle mains pressure and come in 100, 150, 200, and 250 litre capacities. The 150 litre size suits most households of two to three people. The 200 litre size is the most common in family homes with three or four occupants. Larger families or homes with high usage patterns should consider the 250 litre option.
Slim-line units have a smaller diameter than the standard cylindrical models, which makes them easier to install in ceiling spaces with limited height clearance. They hold the same volumes as the standard range but are taller and narrower. If your ceiling is low or access to the geyser cavity is tight, your plumber may recommend this option.
Low-pressure units work at lower inlet pressures and are designed for installations where the water is supplied by gravity feed or a storage tank rather than mains pressure. These are common in rural areas, farms, and some older properties. They look similar to standard units but are internally different and should not be substituted for one another.
Electric element and thermostat options vary across the range. Most standard units come with a 3kW or 4kW element. A higher kW element heats water faster but draws more power. Your installer should match the element to your household usage pattern and the electrical supply available at the geyser circuit.
What does a Kwikot geyser cost in South Africa?
This is the section most people want to get to quickly, and it is worth being realistic about what the numbers look like from unit cost through to full installation.
Unit prices (supply only): A 100 litre standard unit typically costs between R3,500 and R4,800 depending on the supplier and whether you are buying from a plumbing merchant, hardware retailer, or directly. A 150 litre unit runs from R4,200 to R6,000. A 200 litre unit costs between R5,500 and R8,000. A 250 litre unit is typically R7,500 to R9,500 or more at retail pricing. These are approximate ranges that shift with supplier pricing and any trade discounts a plumber might have.
Installation costs: A straightforward replacement installation, where an existing geyser is removed and a new unit fitted in the same location, typically costs between R2,500 and R5,000 in labour depending on your area and the plumber. Johannesburg, Cape Town, and Durban tend to have higher labour rates than smaller towns. If additional work is required, for example replacing corroded pipes, repositioning the unit, upgrading the drip tray, or fitting a new expansion unit, that adds cost.
Full installed cost estimates: A 150 litre unit fully installed in a straightforward replacement scenario typically comes to between R7,500 and R11,000 all in. A 200 litre unit under the same conditions runs from R9,000 to R14,000. If the installation is more complex, involves roof access complications, or requires additional plumbing work, the total can be higher.
Hidden costs people forget: A new pressure control valve is required whenever a geyser is replaced and should not be reused from the old installation even if it looks fine. Expect R400 to R800 for this component. A drip tray and drain pipe, if not already in place, adds another R300 to R600. An expansion unit to absorb pressure changes in the system costs between R500 and R900 fitted. A geyser blanket for the new unit adds R350 to R600. These are all legitimate costs and they add up to R1,500 to R2,900 on top of the unit and labour.
How the installation process works
When your geyser needs replacing, the process typically starts with a call to a plumber who will assess what unit you need. If you already know you want a specific size and model, you can communicate that clearly. If you are not sure, a plumber should ask about your household size, water usage patterns, and existing setup before recommending anything.
The plumber will either supply the unit directly or you can source it yourself and have them install it. Buying through the plumber is convenient but usually comes with a markup. Sourcing the unit yourself from a plumbing merchant can save money, though you then carry the risk of having the wrong unit or a damaged one on delivery day.
On installation day, the plumber will isolate the water supply and switch off the electrical circuit to the old geyser. The old unit is drained and removed. The new unit is positioned in the mounting frame or straps, connected to the water supply, and connected to the electrical circuit. All associated fittings including the pressure control valve, expansion unit, and overflow pipe are checked or replaced. The system is filled, checked for leaks, and the element is powered up.
A registered plumber should issue a plumbing compliance certificate for the work. This is a legal requirement in South Africa and your insurer may ask for it in the event of a water damage claim. Do not skip this step and do not work with an installer who cannot provide it.
The whole process for a standard replacement takes half a day to a full day depending on access and complexity.
Common mistakes when buying or replacing a geyser
Choosing the wrong capacity is the most frequent issue. Homeowners often default to replacing like for like, which makes sense if the existing geyser was correctly sized to begin with. But if the old unit was too small and you were always running out of hot water, this is the moment to correct that. Sizing up by 50 litres typically adds R1,000 to R2,000 to the unit cost but solves the problem permanently.
Fitting a high-pressure unit in a low-pressure system, or vice versa, is a mistake that creates immediate problems. The unit either cannot hold the pressure or does not deliver adequate flow. This is more common in homes that have changed water supply arrangements over the years without the paperwork being updated. Confirming your water supply type before specifying a unit is an important step.
Skipping the replacement of the pressure control valve is something some installers do to cut corners or save the homeowner money in the short term. This is not ideal. The pressure control valve is a safety device and fitting a new geyser without replacing it means relying on an aged component to protect expensive new equipment. Replace it every time.
Not getting a compliance certificate and then having an insurance claim complicated or rejected because the work cannot be verified is a situation that catches people out. The certificate costs nothing extra when working with a registered plumber. There is no good reason not to have one.
How to choose the right model
Here is what actually matters when narrowing down your choice.
Capacity: Count the people who regularly use hot water in the home. Two people can generally manage with 100 to 150 litres. Three to four people need 150 to 200 litres. Families of five or more should look at 200 to 250 litres. If usage is high, for example if multiple people shower in quick succession each morning, size up.
High pressure vs low pressure: Confirm which type your home’s water supply requires. If you are on municipal mains and your pressure is adequate, high pressure is standard. If you are on a gravity feed, borehole, or tank supply, check the pressure before assuming.
Available ceiling space: Check whether your ceiling can accommodate a standard cylindrical unit or whether the slim-line model is needed. Your plumber can assess this quickly.
Element size: A 3kW element recovers more slowly after heavy use but draws less power. A 4kW element heats faster but costs more to run during recovery. For most households a 3kW element is sufficient.
A Kwikot geyser is a practical, widely available option that suits most South African homes and is well-supported in terms of spare parts and service. That does not mean every model is right for every home, and the difference between a correctly sized and specified unit and a poorly matched one is significant in day-to-day use. Take the time to confirm your household’s size, your water pressure type, and your available ceiling space before committing to a model.
Work with a registered plumber who will issue a compliance certificate, replace the associated fittings properly, and not rush the job to save half an hour. Done correctly, a replacement geyser is something you should not have to think about again for ten to fifteen years.
