Leaking Shower? Check the Carpet in the Next Room

Have you noticed a damp patch on the bedroom carpet that never quite dries, a musty smell near the ensuite door, or skirting boards that look a bit swollen at the bottom? Most people look for a roof leak or a burst pipe. In a Perth home, the usual culprit is the shower on the other side of the wall.

Showers leak slowly. A failed grout line or perished silicone lets a small amount of water through every time someone showers, and that water does not sit in the bathroom. It tracks under the tiles, along the slab or floorboards, and into whatever is next door. In most Perth houses, that is a carpeted bedroom or hallway.

The signs, from mild to bad

1. A cool or slightly damp patch in the carpet along the wall shared with the shower. Easiest to find in bare feet, first thing in the morning after showers.
2. A musty smell that gets stronger with the door closed and does not respond to airing the room out.
3. Dark or discoloured carpet near the wall, sometimes with a tide mark where the water has repeatedly dried.
4. Swollen or lifting skirting boards, bubbling paint low on the wall, or a soft feel to the floorboards underfoot.
5. Mould on the carpet, the underlay when you lift a corner, or the back of the skirting.

If you are at step 4 or 5, the leak has been going for months. The carpet is the visible symptom, not the problem.

Why the carpet is the worst part

A wet bathroom floor dries. A wet carpet does not. The underlay soaks up water and holds it against the slab, and there is no airflow under a carpet to help it dry. That gives you three problems that compound the longer they are left:

• Mould. Damp underlay in a warm bedroom is ideal for it, and by the time you can smell it, it is usually in the underlay and sometimes the slab. Mould near a bed is a health issue, particularly for kids and anyone with asthma.
• Odour that will not shift. Deodorisers mask it for a day. The smell is the underlay, not the pile.
• Damage to the floor beneath. On timber floors, repeated wetting rots the boards and joists. On concrete, it can lift the carpet adhesive and stain the slab.

Do it in this order

People often get the carpet cleaned first because it is the thing they can see. That wastes money. The order that works:

1. Stop the water. Get the shower assessed and repaired. In most cases that is regrouting, resealing and new silicone rather than a full strip-out, and it can usually be done without removing a tile.
2. Wait a week. Confirm the carpet is no longer getting wet. If it is still damp after a week of normal showers, the leak is not fixed or there is a second source.
3. Lift the carpet along the affected wall and check the underlay. If it is stained, smelly or has visible mould, it needs replacing. Underlay is cheap. Trying to save it is not.
4. Book a carpet clean that treats water damage specifically. Tell the carpet cleaner it has been wet from a shower leak, so they treat for mould and odour rather than just running a standard clean over the top. Ask how long until it is dry. You want it dry the same day so nothing has a chance to grow back.
5. Repaint or replace the skirting last, once everything is dry.

What it usually costs to ignore it

A leaking shower repair in Perth typically costs a fraction of a bathroom renovation. Left for a year, the same leak often means new underlay, a carpet clean, replacement skirting, and in the worst cases, new carpet and floor repairs in the bedroom. The bathroom side of the bill barely changes. The bedroom side is what grows.

Not sure if it is the shower?

If the damp patch is near a bathroom wall, it almost always is. We can check the shower without pulling tiles up and tell you exactly where the water is getting through. Book an assessment and bring a photo of the carpet. It tells us a lot about how long the leak has been running.