You can stop a leaking pipe tonight without calling a plumber. If the water is off at the mains and you need a fix that holds until a proper repair can happen, sealing tapes are your best option.
This won’t require a hardware run or any trade experience. Just a few minutes and the right tape will do it.
This is a temporary repair designed to buy you time, and it works well for small leaks, pinhole cracks, and weeping joints. Here’s how to do it.
You will need:
- Gorilla Waterproof Patch & Seal Tape
- Dry cloth or paper towel
- Scissors (optional)
Turn Off the Water and Dry the Pipe
Shut the water off at the mains before you do anything else.
Tape won’t bond to a pipe that’s still weeping or under pressure, and this step is what makes everything else work.
Once it’s off, wipe the pipe down with a dry cloth or paper towel.
You don’t need the surface bone dry or spotless; reducing active moisture is enough for the tape to grip.
Focus on the area around the leak and a few centimetres either side.
Locate and Assess the Leak
Before you reach for the tape, find exactly where the leak is coming from.
Run your hand along the pipe and look for the source.
It’ll be a joint, a pinhole, or a hairline crack in most cases.
Knowing the exact spot means you’ll apply the tape where it counts rather than covering too much ground.
If it’s a small, slow leak rather than a burst, this is precisely what sealing tape is designed for.
Apply the Tape Correctly
Start wrapping a few centimetres before the damaged spot, not directly over it.
Each pass should overlap the last by about half the tape’s width, keeping firm, consistent tension as you go.
\Extend the wrap the same distance past the leak point on the other side so the damaged area is fully covered.
Press down firmly at every layer, especially over the leak itself: the seal forms from compression, and steady hand pressure is what makes it hold. You don’t need any primer, tools, or heat.
Turn the Water Back On and Check
Turn the water back on slowly and watch the repair for the first 60 seconds.
A small amount of weeping right at the start is normal; the tape needs a moment to seat under pressure. If it holds after that first minute, you’re done for the night.
If it’s still seeping, turn the water off and add another wrap over the same area.
A second pass almost always closes what the first missed, and you won’t need to start over.
Final Thoughts
A tape repair is a practical bridge between a leak and a permanent fix.
It stops the damage, keeps the house running, and gives you time to book a plumber on your terms.
It’s also worth keeping a roll of sealing tape in your kit going forward, because it handles a lot more than pipes.
When the plumber does arrive, you’ll hand over a dry, managed situation rather than a wet one.
