How to Fix a Leaking Pipe in Kenya: PPR, PVC, GI and HDPE Leak Repairs (2026)

Oct 13, 2026

Buy More Mall Kenya

A small drip wastes thousands of litres a month and can damage walls and floors. Most leaks are at joints and can be fixed quickly with the right part for the pipe type.

Quick answer: Turn off the water at the main valve, drain the line and dry it. For a threaded joint (GI or a tap), unscrew it, wrap fresh thread tape (KSh 150) or hemp (KSh 40) clockwise and re-tighten. For a cracked PPR pipe, cut out the section and fuse in new pipe with couplers; for PVC, cut out and solvent-weld a new piece; for HDPE, cut and fit compression couplers. Repair tape or putty is only a temporary fix.

Emergency Steps

Close the main stop valve (or the tank outlet).
Open the lowest tap to drain the line.
Catch water with a bucket and protect sockets and electrics.
Find exactly where the water comes from: joint, crack or fitting.

Fix by Pipe Type

Pipe	Common leak	Permanent fix
GI (galvanised steel)	Threaded joints, rusted pipe	Re-seal threads with tape or hemp; replace rusted sections with a union
PPR	Badly fused joint, crack	Cut out and heat-fuse new pipe and couplers
PVC	Failed solvent joint, crack	Cut out and solvent-weld a new section
HDPE	Loose compression fitting, split	Tighten or fit a new compression coupler
Tap or valve thread	Weeping thread	Re-seal the thread; replace a faulty valve

Parts for Leak Repairs

Thread Tapes Big – price in Kenya — Thread Tapes Big
**KSh 150**

Thread Seal – price in Kenya — Thread Seal
**KSh 30**

Pegra Bond – price in Kenya — Pegra Bond
**KSh 100**

Gi Union 1/2 – price in Kenya — Gi Union 1/2
**KSh 120**

Coupler-20Mm – price in Kenya — Coupler-20Mm
**KSh 10**

PPR Elbow-20Mm Or 1/2 – price in Kenya — PPR Elbow-20Mm Or 1/2
**KSh 25**

Hdpe Male Coupler-1/2 – price in Kenya — Hdpe Male Coupler-1/2
**KSh 100**

Some photos are reference images of the product type, used under open licences. Image credits are on each product page.

Part	Use	Price
Thread Tapes Big	Sealing threaded joints	KSh 150
Thread Seal	Small thread seal	KSh 30
Hemp	Traditional sealing for GI threads	KSh 40
Pegra Bond	Bonding	KSh 100
Gi Union 1/2	GI union to join and replace sections	KSh 120
Coupler-20Mm	PPR/PVC coupler 20 mm	KSh 10
PPR Elbow-20Mm Or 1/2	PPR elbow 20 mm	KSh 25
Hdpe Male Coupler-1/2	HDPE male coupler	KSh 100

How to Re-Seal a Leaking Threaded Joint

Shut off and drain the water.
Unscrew the joint with pipe wrenches (one to hold, one to turn).
Clean old tape, hemp and rust from the threads.
Wrap thread tape 5–8 times clockwise as you look at the pipe end, or hemp with paste for GI.
Screw back and tighten firmly; do not over-tighten plastic fittings.
Turn on the water slowly and check for drips.

Hidden Leaks

A meter that turns when every tap is closed, damp patches on walls or a high water bill mean a hidden leak. Note the meter reading at night and again in the morning with no water used. See water meter prices and damp walls and rising damp solutions.

Worked Example: A Weeping Tap Connection

Water drips from the joint behind a kitchen tap. The owner shuts the valve, unscrews the tap, cleans the threads, wraps new thread tape six times clockwise, re-fits the tap and checks it dry the next morning. Cost: one roll of thread tape.

Common Mistakes to Avoid

Wrapping thread tape anticlockwise (it unwinds as you tighten).
Relying on repair tape as a permanent fix.
Over-tightening plastic fittings until they crack.
Not shutting off the water first.

Not sure which one fits? Send us your details on WhatsApp or through the product page and we will help you choose.

Frequently Asked Questions

How do you fix a leaking pipe joint?

Shut off the water, undo the joint, clean and re-seal the threads with tape or hemp, then re-tighten; plastic joints usually need re-making.

Can you fix a leaking PPR pipe without cutting?

Not permanently; cut out the damaged part and fuse in new pipe.

Which way do you wrap thread tape?

Clockwise when looking at the pipe end, the same way the fitting tightens.

How do I find a hidden water leak?

Close all taps and watch the meter; if it moves, there is a leak.

Does thread tape stop leaks?

Yes, on threaded joints when applied correctly; it does not fix cracked pipes.

Prices shown are regular prices on Buy More Mall. Many products are currently on offer, so open the product page to see today's price.

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