How to Fix a Leaking Pipe (Temporary and Permanent Fixes)
To fix a leaking pipe, shut off the water, then match the fix to the leak. A pipe repair clamp, epoxy putty, or self-fusing silicone tape stops most leaks in minutes as a temporary patch. The permanent fix is cutting out the bad section and replacing it with a push-fit coupling, soldered copper, or a pressed joint, chosen by your pipe material and where the leak sits.
Shut off the water before you touch the leak
Kill the water first, every time. Close the nearest fixture shut-off valve, and if there is none, close the main shut-off where the water line enters the house (often near the meter, the water heater, or in the basement). Then open the lowest faucet in the house to drain the line and drop the pressure to zero. No patch seals against live pressure.
Dry the pipe and wipe away grease, mineral scale, and old paint, because clamps, epoxy, and tape all need a clean, dry surface to grip. Put a bucket and towels under the leak. If the pipe already burst or is spraying, see our guide on what to do when a pipe bursts before you attempt a patch.
The four temporary fixes that actually hold
Four patches buy you time until a permanent repair: a pipe repair clamp, a rubber-and-hose-clamp patch, epoxy putty, and self-fusing silicone tape. Each is a stopgap measured in days to a few weeks, not a cure. Keep them in a kit so a 2 a.m. pinhole does not become a flood while the supply house is closed.
Pipe repair clamp
A pipe repair clamp is the strongest temporary fix and the one plumbers reach for first. It is a hinged stainless sleeve lined with a rubber gasket that clamps over the leak and seals it under pressure. Buy the size that matches your pipe’s outside diameter, from about 3/8 inch up past 2 inches, so the gasket seats fully around the pipe.
Center the rubber gasket directly over the hole, close the clamp, and tighten the bolts evenly with a nut driver or wrench until the leak stops. It works on copper, galvanized steel, PVC, and CPVC, and handles pinholes, hairline cracks, and splits better than any other patch.
Rubber-and-hose-clamp patch
No repair clamp on hand? Make one. Cut a patch from a piece of thick rubber (a slice of garden hose, an inner tube, or a rubber pad), wrap it tightly over the leak, and cinch it down with two or three worm-gear hose clamps spaced across the patch. It is the field-expedient version of a repair clamp for a small pinhole or crack.
Space the clamps so the rubber is squeezed hard right over the hole. This holds low-pressure and pinhole leaks for a day or two, long enough to get a real clamp or a plumber. It is weaker than a purpose-made clamp, so downgrade your expectations and check it often.
Epoxy putty
Epoxy putty is a two-part stick you knead by hand until the color is uniform, then press over the leak. It cures hard in 5 to 60 minutes and bonds to copper, PVC, CPVC, galvanized steel, and PEX. It shines on pinholes, small cracks, and weeping fitting joints where a clamp cannot wrap, like a tee or an elbow.
Knead a marble-sized piece until there are no streaks, press it firmly into and over the hole, and feather the edges an inch past the leak in every direction. Let it fully cure before you turn the water back on. Many putties list a working temperature and a pressure rating on the pack, so read it.
Self-fusing silicone tape
Self-fusing silicone tape (also sold as pipe burst tape or self-amalgamating tape) bonds to itself, not to the pipe, forming a rubber band around the leak. It is not the same as white thread-seal tape. It suits straight runs of copper, PVC, CPVC, and PEX, and low-pressure pinhole or hairline leaks, especially in tight spots a clamp will not fit.
Stretch the tape hard as you wrap so it fuses, start two inches before the leak, overlap each pass by half, and continue two inches past it. Two full layers is the minimum. Stretched loosely it will not seal, so pull it near its breaking point the whole way.
The temporary-fix process, start to finish
Whichever of the four patches you use, the sequence is the same. Follow these steps in order and do not skip the drain-down or the drying step, because both are where rushed repairs fail. A patch applied to a wet or still-pressurized pipe will weep within hours, so give each step its full time before moving on.
- Close the nearest shut-off valve, or the main if there is none.
- Open the lowest faucet in the house to drain the line to zero pressure.
- Wipe the pipe dry and scrub off grease, scale, and paint around the leak.
- Apply the clamp, rubber patch, epoxy, or tape, centered on the leak.
- Let epoxy cure fully; for clamps and tape, you can proceed once tight.
- Reopen the water slowly and watch the patch for weeping or drips.
- Book the permanent repair, and check the patch daily until it is done.
Match the fix to the leak type and pipe material
The right fix depends on where the pipe leaks and what it is made of, and no single patch is best for every case. Use this table to pick the temporary patch that will hold and the permanent repair that ends the problem. Find your leak type down the left, cross-reference your material, and go with the pairing shown.
| Leak type and material | Best temporary fix | Permanent fix |
|---|---|---|
| Pinhole in copper | Repair clamp or epoxy putty | Cut out section, join with push-fit coupling or solder in a new piece |
| Hairline crack in copper | Repair clamp | Cut out and replace with soldered, pressed, or push-fit coupling |
| Crack or split in PVC/CPVC | Repair clamp or silicone tape | Cut out, glue in a new section with a solvent-weld repair coupling |
| Crack in PEX | Repair clamp | Cut out, join with a push-fit or crimp/cinch coupling |
| Leaking soldered or slip joint | Epoxy putty around the joint | Cut the joint out, install a new fitting or a push-fit coupling |
| Leaking threaded fitting | Snug the fitting, then epoxy if needed | Unthread, rewrap threads with PTFE tape or pipe dope, reassemble |
| Split from a freeze (any material) | Repair clamp over the split | Replace the whole burst section; a freeze splits more than shows |
Permanent fixes that end the leak for good
A permanent fix means removing the failed section or joint, not patching over it. There are three routes: push-fit couplings, soldering, and pressing. Push-fit is the DIY-friendly choice, soldering is the copper tradition, and pressing is the pro’s fast method. All three start the same way, by cutting the bad piece out with a tubing cutter and deburring the ends.
Replace the section with a push-fit (SharkBite) coupling
Push-fit couplings are the fastest permanent-grade repair a homeowner can do, no torch, glue, or crimp tool. They join copper, CPVC, and PEX. Cut out the leaking section with a tubing cutter, deburr both ends, and mark the insertion depth on each. Push a coupling fully onto each clean, dry end until it bottoms out, then pressure-test. A slip or repair coupling spans the gap left by the cut.
Solder in a new piece of copper
Soldering is the traditional permanent copper fix and the cheapest in parts. Cut out the bad section, clean the pipe ends and new fittings with emery cloth and flux until the copper shines, then heat the joint with a torch and feed lead-free solder until it wicks all the way around. If you have never soldered, watch a tutorial first or hire it out, because a torch near framing carries real fire risk.
Press the joint (pro method)
Pressing uses a battery tool and fittings with a built-in O-ring that crimp permanently onto the pipe in seconds, no flame. It is standard on copper and stainless in the trade because it is fast and torch-free, but the tool and jaws run into the hundreds to thousands of dollars, so it is a plumber’s method, not a one-off homeowner buy. If a pro is doing the repair, this is often what they use.
How long each temporary fix really holds
Every patch on this page is a stopgap, and the honest lifespan is shorter than the packaging suggests. The underlying cause, corrosion, a freeze split, or a failing joint, keeps working under the patch. A repair clamp lasts longest, epoxy and tape the least. The numbers below are working estimates for a small leak, not guarantees, so plan the permanent fix now.
| Temporary fix | Realistic hold time | Best for |
|---|---|---|
| Stainless repair clamp | Weeks, sometimes months on a pinhole | Pinholes, cracks, splits, higher pressure |
| Epoxy putty | About 1 to 4 weeks | Pinholes, small cracks, weeping joints |
| Self-fusing silicone tape | About 1 to 4 weeks | Low-pressure pinholes in tight spots |
| Rubber-and-hose-clamp patch | 1 to 2 days | Emergency pinhole with no clamp on hand |
When to call a plumber
Do the permanent repair yourself only if you are confident with the method and the pipe is accessible. Call a licensed plumber when the leak is inside a finished wall or ceiling, when you would need a torch near framing, when several pinholes appear at once (a sign the whole run is corroding), or when the shut-off valve itself fails. Recurring leaks in one spot mean the pipe needs replacing, not patching.
Not every drip is a pipe. If the water is coming from a tap, start with fixing a dripping faucet instead. Stock the right gear ahead of time from our list of essential plumbing tools, and before you hire out, see what plumbing repairs cost by job so you know a fair price.
Frequently asked questions
Can I fix a leaking pipe without turning off the water?
No, and you should not try. Water pressure blows off tape, pushes epoxy out of the crack, and stops a clamp gasket from sealing. Shut the nearest fixture valve or the main, then open a low faucet to drain the line to zero pressure. Only a fitting-thread leak on a drained line can sometimes wait, and even that seals better dry.
How long does a temporary pipe repair last?
Treat every temporary patch as days to a few weeks, not months. A stainless pipe repair clamp with a rubber gasket can hold the longest, sometimes months on a small pinhole, but the corrosion or crack that caused the leak keeps spreading underneath. Epoxy putty and self-fusing tape are shorter, roughly one to four weeks. Schedule the permanent fix right away.
Does plumber’s tape stop a pipe leak?
Thread-seal tape (PTFE, the white “plumber’s tape”) only seals threaded fittings during assembly, so it does nothing for a leak in the middle of a pipe. What stops a mid-pipe leak is self-fusing silicone tape, a different product that bonds to itself under tension. For a leaking threaded joint, take it apart, rewrap the threads with PTFE, and reassemble.
Can you use a SharkBite fitting on a leaking pipe?
Yes, once the pipe is drained and cut. Push-fit couplings like SharkBite join copper, CPVC, and PEX with no solder or glue, which makes them the fastest permanent-grade fix for a cracked or pinholed section. Cut out the bad piece, deburr and mark the insertion depth, then push a coupling onto each clean end. Do not push a fitting onto a wet, pressurized, or corroded pipe.
How do you fix a leaking pipe joint without soldering?
For a copper or CPVC joint, cut the joint out and rejoin with push-fit couplings, no torch needed. For a threaded metal joint, unthread it, clean the threads, rewrap with PTFE tape or pipe dope, and reassemble. For a slip PVC joint that leaks, you usually cut it out and glue in a new fitting with a repair coupling, since solvent-welded joints cannot be unscrewed.
Is a small pipe leak an emergency?
A slow drip is not a burst pipe, but it is not safe to ignore. Even a pinhole can release gallons a day, rot framing, and grow mold behind a wall within a week. Shut off the water, patch it, and book the repair. If water is spraying, pooling fast, or near electrical, treat it as an emergency and kill the main immediately.
Last reviewed: August 2026.