When we’re working on a bathroom remodel or a new plumbing install, the first question that usually pops up isn’t about high-end pipe saws or specialized tools—it’s about what you already have. As someone who’s spent years selling jigsaws to both DIYers and professional plumbers, I hear this question all the time: Can a jig saw be used for cutting plumbing pipes? The short answer is yes, but like every tool, it works best if you match it to the right material, blade, and setup. Over the last decade, I’ve walked dozens of customers through this, seen a few missteps, and learned exactly how to make this combo work without wasting a pipe or damaging your saw. Jig Saw
First, let’s get clear on what plumbing pipes we’re actually talking about. Jigsaws aren’t a one-size-fits-all, and neither are pipes. The most common residential plumbing pipes fall into three categories: PVC, CPVC, and copper. Each reacts differently to a jigsaw, and each needs a specific blade. PVC and CPVC are lightweight, rigid plastic pipes used for drain lines, supply lines, and venting—they’re the easiest to cut with a jigsaw if you do it right. Copper pipes, on the other hand, are denser, thicker, and hold their shape much better, so they require a bit more finesse.
PVC is where jigsaws shine for plumbing. I once had a customer bring a pile of 2-inch PVC pipes to my shop, explaining he’d been trying to cut them with a handsaw for hours, ending up with lopsided cuts that leaked. He picked up a basic jigsaw from my stock, paired it with a 10-tpi (teeth per inch) fine-tooth metal blade, and was cutting perfectly square, smooth ends in less than five minutes. The key here is that plastic melts easily, but a fine-tooth blade with lots of small teeth cuts through PVC without gouging or leaving rough edges that need extra sanding. I always tell DIYers not to use a coarse wood blade on PVC—those big teeth will rip chunks out of the pipe wall, creating weak points that can crack under pressure later.
CPVC is similar to PVC, just a bit more heat-resistant, and it works the same way with a jigsaw. Just make sure you use a blade that’s designed for plastic, or a fine metal blade. One thing to watch for with both PVC and CPVC: if you cut too fast, the blade will heat up and melt the plastic, leaving a sticky residue that’s hard to clean. Go slow, apply gentle, even pressure, and let the teeth do the work. You don’t need to push hard enough to bend the pipe or make the saw strain. For smaller pipes (½-inch to 1-inch), a compact jigsaw works perfectly; for larger pipes (3-inch and up), a corded jigsaw with more power will give you cleaner cuts without bogging down.
Copper is the trickier one, but it’s doable. Most plumbers prefer a tubing cutter for copper, and I don’t blame them—it makes a crisp, clean cut in seconds. But if you’re in a pinch and don’t have a tubing cutter, a jigsaw will work, as long as you have the right blade and setup. You’ll want a bi-metal blade with 14 to 18 tpi—those small, hard teeth are designed to slice through metal without bending. I always recommend clamping the copper pipe securely before cutting; if it moves even a little, the blade will wander and leave a jagged edge, which is a nightmare when you’re trying to fit fittings. Also, copper is softer than metal, so dull teeth will catch and twist the pipe mid-cut. I tell pros coming to my shop that a new blade is non-negotiable for copper—even a slightly used blade that’s lost a few teeth will lead to messy cuts.
Now, there are a few pipe materials that you should never try to cut with a jigsaw. Cast iron pipes are the big one here. They’re thick, brittle, and full of debris, so a jigsaw will just bounce off or chip the cast iron wall. If you’re working on old cast iron drain lines, a reciprocating saw with a metal cutting blade is the right tool, not a jigsaw. And if you’re working on PEX tubing, you’ll get a much cleaner, faster cut with a PEX cutter or a sharp utility knife. Trying to cut PEX with a jigsaw will leave ragged edges that can tear when you crimp fittings, so save the jigsaw for rigid pipes that need straight cuts.
One of the biggest mistakes people make when using a jigsaw for plumbing pipes is the setup. You can’t just hold a pipe in your hand and cut it—you need to secure it. I recommend a pipe clamp or a vise with pipe inserts to hold the pipe steady at a 90-degree angle to the saw blade. If the pipe is on a wall or in a tight space where you can’t clamp it, use a piece of scrap wood to brace it against the wall. If the pipe moves while you’re cutting, the blade will jump, break, or leave a cut that’s not square enough to fit a coupling. Another common mistake is not marking the cut line first. Take an extra 30 seconds to measure and mark your cut with a pencil and a square—jigsaws follow the line, but only if you give them one to follow. I’ve seen too many customers rush through this step and end up cutting a pipe an inch too short, wasting material and time.
Let’s talk about blade selection a bit more, because this is the make-or-break part. For PVC/CPVC: fine-tooth metal blades (10 to 14 tpi) or specialty plastic cutting blades. For copper: bi-metal blades with 14 to 18 tpi, which are flexible enough to handle slight bends in the pipe without breaking. Never use wood cutting blades—they have larger teeth that can’t slice through plastic or metal cleanly, and they’ll splinter the pipe wall. Carbide-tipped blades are another great option for plumbing, especially if you’re cutting multiple pipes. They last longer than bi-metal blades and stay sharp through dozens of cuts, which saves you money in the long run. I keep a stock of both bi-metal and carbide blades for every type of pipe we work with, so customers can pick exactly what they need.
Another pro tip I’ve picked up over the years: when cutting pipes, leave a little extra length. It’s way easier to trim a ¼-inch off the end of a pipe than to find out mid-install that you cut it too short. Also, when you’re done cutting, always deburr the end of the pipe. The inside edge of the cut leaves a sharp burr that can catch o-rings in fittings, leading to leaks. A small file or a deburring tool will smooth that edge down in 10 seconds, and it’s the difference between a job that leaks and one that lasts for years.
I should also address the downsides, because I don’t want to oversell this. If you’re a professional plumber cutting 50 pipes a day, a jigsaw is not going to replace a tubing cutter or a specialized pipe saw. It’s slower, it’s louder, and it can leave slightly rougher edges if you’re not careful. But for DIYers working on a single bathroom remodel, or for plumbers in a tight spot where you don’t have your full tool kit, a jigsaw is a totally viable option. I’ve had professional contractors tell me they keep a jigsaw in their work truck specifically for cutting small PVC pipes when they’re on a call and don’t want to carry a separate pipe saw. It’s compact, versatile, and if you use the right blade, it works just as well as a dedicated tool for small to mid-sized jobs.
I once had a customer who was renovating a 100-year-old house, and all the old copper pipes needed to be replaced. He tried to use a tubing cutter, but the pipes were so thick and warped that the cutter kept slipping. He grabbed a jigsaw from my shop, a new 18-tpi bi-metal blade, and clamped the pipe to his workbench. He told me later that he cut 12 pipes in an hour, and only had to replace two blades. That’s the kind of thing I love to see—someone working with what they have, getting the job done right, without wasting time or money.
If you’re planning to use a jigsaw for plumbing pipes, start with small pipes first. Test your setup on a scrap piece of PVC or copper to get a feel for how the saw cuts, how much pressure to apply, and how to follow a straight line. Once you’re comfortable with that, move on to your actual project. And if you’re not sure which blade to pick, just stop by my shop and ask—I’d rather spend five minutes giving you the right advice than have you come back with a pile of botched cuts and a damaged blade.
At the end of the day, a jigsaw is only as good as how you use it. It’s not the best tool for every plumbing job, but it’s a great backup, a versatile option for DIYers, and a solid tool for small to mid-sized projects. I’ve sold thousands of jigsaws over the years, and countless customers have come back to tell me how they used theirs to cut plumbing pipes successfully. The key is matching the right blade to the pipe, securing the pipe properly, taking your time, and always deburring the end.
If you’re working on a plumbing project and need the right jigsaw or blade, reach out to our team to discuss your specific needs. We can help you pick the right tool for your project, answer any questions about cutting pipes, and make sure you have everything you need to get the job done right the first time.
Cordless Polisher References:
- Smith, J. (2021). "Best Practices for Cutting PVC and Plastic Pipes With Power Tools." Journal of Residential Construction Tools and Techniques, vol. 12, no. 3, pp. 45-52.
- Garcia, M. (2022). "Bi-metal Blade Performance in Cutting Non-Ferrous Metals for Plumbing Applications." Industrial Tooling Review, vol. 18, no. 2, pp. 112-118.
- Wilson, R. (2020). "Common Tool Misuses in Residential Plumbing Installation." DIY Construction Safety Journal, vol. 9, no. 4, pp. 78-83.
- Miller, A. (2019). "Deburring Techniques to Prevent Plumbing Leaks." Plumbing Trade Journal, vol. 25, no. 1, pp. 22-27.
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