Switch off the geyser at the distribution board, close the water at the mains, and get extraction and drying equipment on site the same day. What happens in the first 24 to 48 hours decides whether this is a carpet that dries out and carries on, or a carpet, underlay and skirting that all have to come out. The water itself is rarely the expensive part. The delay is.
In most South African homes the geyser sits in the roof space, which means a burst does not simply leak onto the floor. It saturates the ceiling, comes through the boards or brings a section of ceiling down with it, and arrives across a wide area at once, soaking carpet, underlay and skirting boards from above while you are still working out where the noise is coming from.
The first hour
- Electricity off. Switch the geyser off at the distribution board. If water is anywhere near light fittings, plug points or the board itself, switch off the main breaker and do not touch anything electrical until an electrician has looked at it. Water and a live ceiling circuit is the genuine danger here.
- Water off. Close the main stopcock. If you can reach the geyser’s own isolating valve safely, close that too.
- Stay out from under a wet ceiling. A saturated gypsum ceiling holds a great deal of water and comes down without warning. Do not stand under a bulging ceiling and do not send anyone into the roof space to look.
- Photograph everything before you move anything. This is the step people skip and regret. Wide shots of each affected room, close shots of the water line on the skirting, the ceiling, the carpet, and any damaged contents. Insurers assess on evidence, and the evidence disappears the moment you start cleaning up.
- Then start moving what you can. Lift what is liftable and get it out of the wet.
Get the rugs up first
This is urgent and it is frequently missed. A wet rug lying on wet carpet is two problems compounding: the rug’s dyes can bleed into the carpet beneath it, and the carpet’s dye can bleed into the rug. Natural dyes on a wool or hand-knotted rug will run readily in standing water, and a rug on a timber floor will mark the floor within hours.
Get every rug off the floor immediately, take it outside if the weather allows, and lay it flat rather than hanging it over a rail, since hanging a saturated rug stretches the foundation under its own weight. Do not fold it. Then call someone, because a soaked rug needs controlled flat drying and monitoring until the foundation is dry through, which can take up to two days, and drying it fast or unevenly is what causes dye migration and cockling. Our rug drying guide and our post on cockling cover what goes wrong when this is left to the room.
Furniture off the carpet
Wooden furniture legs release stain into wet carpet, and metal feet leave rust marks, both within hours and both frequently permanent. Lift furniture out of the room where you can. Where you cannot, put foil, plastic or blocks under every leg. Take up anything cardboard immediately, since it wicks water across the floor.
Water categories, and why the clock matters
Restoration work classifies water by contamination, and the classification changes with time. This is the part that determines whether carpet can be saved.
- Category 1, clean water. A burst geyser starts here: it is potable supply water. At this stage carpet and underlay are usually salvageable if drying starts promptly.
- Category 2, grey water. Category 1 degrades to Category 2 typically within 24 to 48 hours, as it picks up soil, dyes and microbial growth from everything it has passed through. Carpet is often still salvageable; underlay usually is not.
- Category 3, black water. Grossly contaminated. Sewage is Category 3 from the start, and Category 2 degrades to Category 3 after roughly 72 hours. Carpet and underlay are removed and disposed of.
There is an important qualification for geyser bursts specifically: water that has passed through a ceiling void is not clean water any more, whatever it started as. It has run through decades of roof dust, insulation, rodent droppings and bird debris. Treat ceiling-borne water as contaminated from the outset regardless of how recent the burst is.
The other clock is mould, and it runs on the same schedule: 24 to 48 hours in wetted material at normal room temperature.
Why home drying does not work
A wet vacuum and a couple of fans dry the surface of the pile. They do not touch the underlay, and the underlay is where the water is. Carpet feels dry underfoot within a day while the layer beneath it stays saturated for weeks, and the result is a musty smell that appears about a fortnight later and never clears, delamination as the latex bond breaks down, jute backing shrinking so the carpet pulls off the gripper, and mould in the underlay and against the screed.
What actually works is a different class of equipment: truck-mounted extraction to remove the bulk water including from the underlay, air movers to force evaporation from the fibre, and dehumidifiers to take that moisture out of the air rather than letting it condense elsewhere in the house. That combination runs for several days, with moisture readings taken to confirm the structure is genuinely dry rather than dry to the touch. Our flooded carpet guide covers the process in more detail.
The underlay question
Expect to replace it. Underlay is absorbent, it holds water long after the carpet feels dry, it is the hardest layer to dry in place, and it is comparatively inexpensive to replace. On anything beyond a small Category 1 event caught within hours, lifting and replacing the underlay while drying the carpet and the screed underneath is usually the correct call, and trying to save it is a false economy that shows up as a smell two months later.
Carpet itself is a better prospect. Fitted carpet caught early can frequently be lifted, dried, treated antimicrobially, relaid and cleaned, and end up perfectly serviceable.
Insurance
Most South African household policies cover burst geysers and the resulting water damage, and many insurers require you to notify them before remedial work starts. Practical points: notify immediately rather than after the weekend, keep the photographs and every invoice, do not dispose of damaged items until the assessor has seen them or has confirmed in writing that you may, and get the cause of the burst documented since policies distinguish a burst from a slow leak. Ask your insurer whether emergency drying is covered separately from repair, because mitigation of further damage often is, and acting quickly is normally what the policy expects of you anyway.
Afterwards
Once the structure is genuinely dry, the carpet needs a full clean rather than just drying. Flood water leaves soil, dissolved contaminants and antimicrobial residue in the pile, and until that is extracted the carpet will re-soil quickly and may still smell. That clean should happen after drying is confirmed complete, not during it.
Watch for delayed problems over the following weeks: a musty smell on humid days, tan browning patches wicking up from a jute backing, ripples where the backing has shrunk, and any spongy area underfoot. Our post on delamination and shrinkage covers what each of those means.
We respond across Gauteng for burst geysers, storm and roof-leak damage and appliance failures. Urgent scheduling carries a service fee on top of standard cleaning rates: R2,500 for same-day response within 24 hours, or R1,000 for next-day. On an active flood, call 062 791 5531 rather than emailing, because the first 24 to 48 hours are the whole game.
Common questions
What should I do first when a geyser bursts onto the carpet?
Switch the geyser off at the distribution board and close the water at the mains, and if water is near any electrical fitting switch off the main breaker. Stay out from under a saturated ceiling, since a wet gypsum ceiling can come down without warning. Photograph everything before moving anything, then lift rugs and furniture off the wet carpet and get extraction and drying equipment on site the same day.
Can carpet be saved after a burst geyser?
Often yes, if drying starts within the first 24 to 48 hours. Fitted carpet caught early can be lifted, extracted, dried, treated antimicrobially, relaid and cleaned. The underlay is a different matter and usually has to be replaced, since it holds water long after the carpet feels dry and is the hardest layer to dry in place. After about 72 hours, or where water has run through a ceiling void, contamination usually means removal.
Is water from a burst geyser clean?
It starts as clean potable water, but it does not stay that way. It degrades to grey water typically within 24 to 48 hours and to grossly contaminated water after about 72. Water that has come through a ceiling void should be treated as contaminated from the outset whatever its age, because it has passed through roof dust, insulation and rodent and bird debris on the way down.
Why can I not just dry the carpet myself with fans?
Because fans and a wet vacuum dry the pile surface, not the underlay, and the underlay is where the water is. The carpet feels dry within a day while the layer beneath stays saturated for weeks, producing a musty smell that appears about a fortnight later, delamination as the latex bond fails, shrinkage that pulls the carpet off the gripper, and mould against the floor. Proper drying needs extraction, air movers and dehumidifiers run together for several days with moisture readings to confirm the result.