Exhaust System Shops in Cornwall, ON

Find trusted exhaust system services in Cornwall. Compare prices, read reviews, and book online.

✓ Verified Shops ✓ Online Booking ✓ Real Reviews
Auto M.D.
Cornwall • ≈ 3 km
AU
926 Carleton St, Cornwall, ON K6H 6B9, Canada, Cornwall
★ 4.8
66 Google reviews
Response ≈ 58 min $$ • Quotes free
Exhaust System Auto MechanicTransmission
📞 (613) 932-0832 Free quote • Verified
Ceasor's Auto
Cornwall • ≈ 10 km
CE
66 Marlborough St S, Cornwall, ON K6H 3Z5, Canada, Cornwall
★ 4.8
59 Google reviews
Response ≈ 21 min $$$ • Quotes free
Exhaust System Auto MechanicEngine Repair
📞 (613) 932-9672 Free quote • Verified
Direct Muffler, Brake & Auto Service Inc.
Cornwall • ≈ 4 km
DI
1411 Rosemount Ave, Cornwall, ON K6J 3E5, Canada, Cornwall
★ 4.5
152 Google reviews
Response ≈ 32 min $$$ • Quotes free
Exhaust System Brake ServicesTransmission
📞 (613) 938-9185 Free quote • Verified
JIFFY AUTO SERVICE
Cornwall • ≈ 7 km
JI
602 Pitt St, Cornwall, ON K6J 3R7, Canada, Cornwall
★ 4.5
70 Google reviews
Response ≈ 15 min $$$ • Quotes free
Exhaust System Oil Change & Lube
📞 (613) 938-1300 Free quote • Verified
BENSON CERTIFIED AUTO SERVICE
Cornwall • ≈ 5 km
BE
1321 Pitt St, Cornwall, ON K6J 5T5, Canada, Cornwall
★ 4.4
117 Google reviews
Response ≈ 41 min $$ • Quotes free
Exhaust System Oil Change & LubeBrake Services
📞 (613) 933-7770 Free quote • Verified
Best Deal Garage Inc.
Cornwall • ≈ 7 km
BE
633 Pitt St, Cornwall, ON K6J 3R8, Canada, Cornwall
★ 4.4
177 Google reviews
Response ≈ 52 min $$$ • Quotes free
Exhaust System Auto MechanicEngine Repair
📞 (613) 936-9393 Free quote • Verified
Autochecker
Cornwall • ≈ 6 km
AU
1447 Pitt St, Cornwall, ON K6J 3T9, Canada, Cornwall
★ 4.0
124 Google reviews
Response ≈ 37 min $$$ • Quotes free
Exhaust System Auto ElectricalSuspension & Steering
📞 (613) 933-2777 Free quote • Verified
Showing 7 mechanics • Load more
Online booking workflow

Cornwall bookings,
zero phone tag.

STEP 01
Search

Filter Cornwall shops by service, rating, distance, open now.

7 results • verified
STEP 02
Request Booking

Send vehicle + service details. Get a firm quote or pick a slot.

Avg reply 42m
STEP 03
Shop Approves

Owner confirms time, price, and bay availability. One tap.

Calendar & SMS sync
STEP 04
Appointment Confirmed

You get confirm + reminders + live status tracking.

Stripe receipts
Cornwall customer reviews

Real bookings, real reviews

Verified Reviews for Exhaust System
★ ★ ★ ★ ★

“Very friendly and happy to help. Thanks for everything”

Sergio Didonato • Exhaust System at Auto M.D., Cornwall
★ ★ ★ ★ ★

“Went out of their way to help us when we had exhaust problems on our road trip across Canada. So friendly and helpful and got us safely back on the road in no time! Cannot recommend enough!”

Sarah Nizzola • Exhaust System at JIFFY AUTO SERVICE, Cornwall
★ ★ ★ ★ ★

“I called Auto MD Friday morning before labour day with a transmission problem. I was told that there would be little chance that I could get the vehicle looked at let alone repaired that day. They assured me that Tuesday morning they would be able to help me.
I called CAA and had the vehicle (2013 Silverado) towed to their shop at about 11:30 am. There were people coming and going at this very busy shop. I was thinking that Friday before the long weekend was not a good time to have vehicle problems.
The vehicle was stuck in reverse and wouldn't start or drive.
When the tow driver dropped it off the mechanic came out and went under behind the driver wheel and announced it was now in park so no need to chalk the wheels.
After speaking with them I figured I would be at he camp site until Tuesday. My wife and I went to the park for a picnic lunch and before we knew it the garage called to say the truck was ready for pickup.
I could hardly believe it. When I went to pay I was flabbergasted at the small amount of the invoice.
Thank you so much for making our Holliday weekend enjoyable and stress free.
Robert and Terry Spencer”

Terry Spencer • Exhaust System at Auto M.D., Cornwall
★ ★ ★ ★ ★

“Very professional I highly recommend this shop”

Frank St. Pierre • Exhaust System at Direct Muffler, Brake & Auto Service Inc., Cornwall
For shop owners

Get More Customers
Through Boommar

Cornwall drivers searched “auto mechanic” 8,400 times last month. Claim your listing, turn searches into bookings.

• Online Booking
• Lead Tracking
• Review Management
• Listing Analytics
Cornwall Pro – last 30 days
+41
booking requests
4.8★
avg rating
31m
median reply
92%
show-up rate
Calendar sync • Stripe • SMS reminders • Review automation

Find a Best Exhaust System in Cornwall, ON

Boommar lists 7 verified mechanics in Cornwall. Compare real reviews, response times, pricing bands, and open bays — then book online.

Common Causes of Exhaust & Muffler Problems

Road salt and moisture causing rust and corrosion on exhaust pipes
Catalytic converter deterioration from engine misfires and rich-running conditions
Broken or deteriorated exhaust hangers allowing pipes to sag and vibrate
Exhaust manifold cracks from repeated heat cycling
Impact damage from road debris or bottoming out over obstacles
Failed flex pipes allowing exhaust leaks on front-wheel-drive vehicles

Signs Your Exhaust System Needs Repair

Loud rumbling or roaring sound from under the vehicle
Check Engine light related to catalytic converter efficiency codes
Rattling noise from a loose or failing heat shield
Strong exhaust fumes smell inside or around the vehicle
Decreased fuel efficiency and reduced engine performance
Visible holes, rust-through, or hanging exhaust components

Exhaust System Services Available

Catalytic Converter Replacement

Installing a new OEM or aftermarket catalytic converter

Muffler Replacement

Replacing worn or rusted-through mufflers

Exhaust Pipe Repair & Welding

Welding patches or replacing corroded sections

Exhaust Manifold Repair

Fixing leaks and replacing cracked manifolds and gaskets

Flex Pipe Replacement

Replacing the flexible joint that absorbs engine movement

Custom Exhaust Fabrication

Custom mandrel-bent exhaust systems for trucks and performance vehicles

Exhaust System Tips

Have your exhaust system visually inspected at every oil change
If you smell exhaust fumes inside the cabin, get it fixed immediately—carbon monoxide is deadly
Address small rust spots before they become expensive full-section replacements
A rattling heat shield is an easy, inexpensive fix—don't ignore it
Keep your engine running properly to protect the catalytic converter from premature failure
Application of undercoating can help protect exhaust components from salt corrosion

Frequently Asked Questions

How much does a catalytic converter replacement cost in Cornwall? +
OEM catalytic converters range from $1,000-$3,000+ depending on the vehicle. Aftermarket units can cost $500-$1,500. The high precious metal content (platinum, palladium, rhodium) drives the cost.
Can I drive with a broken exhaust? +
While the vehicle may still run, driving with an exhaust leak is dangerous due to carbon monoxide exposure and may cause you to fail emissions testing. It should be repaired promptly.
How long does a muffler last? +
Mufflers in regions with harsh winters and heavy road salt typically last 5-8 years. In milder climates, stainless-steel mufflers can last the life of the vehicle.
Why is my catalytic converter failing? +
Common causes include engine misfires (unburnt fuel overheating it), excessive oil consumption, coolant leaks into combustion, or simply age and high mileage. Fixing the root engine issue prevents repeat failure.