Find the leak, weld it, done
An exhaust leak gets louder, costs you fuel and can put fumes in the cabin. Most are a cracked joint, a rotted section of pipe or a broken hanger — and most are a weld, not a whole new system.
Prices up front
Every service, with the price on it
Same-day service
In and out, not booked out
A quote before we start
You approve the price first
One shop, every job
Tires, wheels, alignment, exhaust
What's actually leaking
An exhaust leak doesn't fix itself. It starts small — a tick at idle, a hiss you only notice with the windows down — and gets louder as the gap opens up. Left alone, the engine ends up working harder to push exhaust out through the hole instead of the tailpipe. The right fix depends on exactly where the leak is, which is why we look at the whole system before quoting anything.
Exhaust Leak Repair
Most leaks start at a joint — where two sections of pipe meet, or where the pipe meets the muffler or resonator. A gasket fails, or the metal around it rusts through. We find the exact spot with the engine running instead of guessing from the sound, then reseal or weld it depending on what's failed.
Exhaust Pipe Repair
Rust usually does the damage here. A section of pipe thins from the inside, then splits or opens a hole you can hear from the driveway. If the rest of the pipe is solid, we cut out the bad section and replace just that piece. If rust has spread past one spot, we tell you that instead of patching something that will fail again in a month.
Exhaust Welding
A lot of what sounds like "I need a new exhaust" is actually a weld. A cracked seam, a split at a joint, a flange that's worked loose — these get repaired in place rather than swapped for a new part. It costs less than replacing the section, and it holds as long as the metal around it is sound enough to weld to.
Exhaust Hanger Repair
The exhaust doesn't bolt straight to the car — it hangs from rubber mounts and brackets along the underside. When a hanger breaks or rots out, the pipe sags, and a sagging pipe rattles against the underbody or scrapes on the ground over bumps. Replacing one is a small job, but leaving it broken puts weight on the rest of the system it wasn't built to carry.
If the resonator itself is the problem, we can remove or replace it as part of the same repair. The flex pipe near the manifold cracks occasionally too, and it gets fixed the same way as any other section — cut out what's failed, weld in what's good.
One thing worth ruling out first: a roar that arrived overnight, rather than a noise that crept up over weeks, often isn't a leak at all. That pattern points at the catalytic converter, which is a much bigger bill — here's what drives a converter replacement's cost in Toronto and how to tell whether yours has gone. Either way the car goes up on the lift to find out, which is a sensible moment to get an oil change done in the same visit.
What exhaust leak repair costs
Exhaust repair — leak, pipe or hanger work — starts at $150, before tax. If the muffler itself has to come out rather than a section of pipe, that's priced separately: muffler repair and replacement is $160, and price can vary by vehicle.
- Exhaust leak repair
- Pipe and hanger work
- Weld repairs where needed
Price before tax. Walk in, six days a week.
We inspect on arrival, show you where the leak actually is, and quote before we touch anything.
Something else making noise under the car? See all muffler & exhaust work and pricing.
Exhaust leak repair FAQ
- How much does exhaust leak repair cost?
- Exhaust leak repair at Boss Tire is $150, before tax. That's the starting point — the final number depends on where the leak is and how much pipe needs to come out and get replaced. Call with your year, make and model and we'll walk you through it before we start anything.
- How do I know if my exhaust is leaking?
- The usual sign is noise — a drone or a hiss that's gotten louder over days or weeks, especially right after startup or when you accelerate. Some drivers notice a smell reaching the cabin instead, or a rattle from underneath over bumps. Any of those is worth bringing in.
- Can an exhaust leak be welded, or does it need a new part?
- Most of the time it can be welded. A cracked joint, a split seam or a loose flange gets repaired in place instead of replaced. A new section only comes into it when the metal around the leak is too rusted or thin to weld to safely.
- Is it safe to drive with an exhaust leak?
- Not if the leak is somewhere the fumes can reach the cabin — that's a carbon monoxide risk, and it's a real one, not just a noise problem. If you can smell exhaust inside the car, don't wait on it. Get it looked at.
- How long does exhaust repair take?
- It depends on what's actually wrong. A single weld or a hanger replacement is usually a job you can wait for. A pipe section that needs to be cut out and replaced still typically finishes the same day — we'll know once we've had a look underneath.
Exhaust getting louder?
Call the shop or drive in — we'll find the leak, show you, and quote before we touch it.