Open Mon–Sat 9:30 AM–6:00 PM

Auto repair & mechanic · Cornwall, ON Precision work. No surprises.

Brakes, tires, diagnostics, oil changes and Ontario Safety Standards Certificates, just outside Cornwall on South Branch Road. Open Saturdays until 6.

Brakes grinding? Flat tire? Call now → Open Saturdays · until 6 PM
S1–S7 · What we fix

Every system. One honest shop.

From a squealing brake to a check-engine light, we find the real cause, explain it in plain language and fix it right.

  • Mechanic's hands servicing a car's disc brake rotor and caliper

    S1 — Brakes

    Brake repair

    • Squealing or grinding when you stop
    • A soft, spongy or sinking pedal
    • Pulling or shaking when you brake
    Book brakes
  • Mechanic carrying a car tire across a repair shop

    S2 — Tires

    Tires & flat repair

    • Seasonal changeovers, winter and summer
    • New tire installation
    • A flat or a slow leak that won’t quit
    Book tires
  • Gloved hands pouring fresh oil into a car engine

    S3 — Maintenance

    Oil change & maintenance

    • Oil and filter changes
    • Fluids, battery, wipers and belts checked
    • Maintenance by your owner’s manual
    Book an oil change
  • Car dashboard with amber warning lights lit beside the tachometer

    S4 — Diagnostics

    Diagnostics & electrical

    • Check-engine or warning lights on
    • Hard starts, stalling or a rough idle
    • Battery, charging and electrical faults
    Book diagnostics
  • Close-up of a vehicle's suspension assembly behind the wheel

    S5 — Suspension & exhaust

    Suspension, steering & exhaust

    • Clunks or knocks over bumps
    • Pulling, wandering or uneven tire wear
    • A loud, rattling or smelly exhaust
    Book this
  • Mechanic checking a vehicle's wheel and recording results on a tablet

    S6 — Safety

    Safety certificates

    • Buying or selling a used vehicle
    • Registering a vehicle from out of province
    • Clear results: pass, must fix, or can wait
    Book an inspection
  • SUV raised on a two-post lift inside a bright auto repair bay

    S7 — General repair

    General auto repair

    • Noises, leaks and smells tracked down
    • Cooling system, belts and hoses
    • Not sure what it is? Tell us what you notice
    Book a repair
  • S8 — Busy for a reason

    Book ahead, get the time you want

    Word travels fast around Cornwall. Request a booking and we’ll call to confirm a time that works for you.

Brakes grinding? Flat tire?

Don’t wait for a callback. Call us and we’ll tell you straight how soon we can get you in.

Call (613) 938-1404
How we work

No surprises. That’s the whole policy.

We show you what’s wrong, what it costs and what can safely wait. The wrench doesn’t come out until you’ve said yes.

Repair orderNo. 0001
  1. 01 We inspect and explain what we find.In plain language. Ask us anything.
  2. 02 You get an estimate and approve it before we start.Ontario rules protect you too: a final bill can’t go more than 10% over an approved written estimate.
  3. 03 Want your old parts? Just ask.Let us know when you drop off the car.
  4. 04 We tell you what must be fixed now and what can wait.So you can plan and budget without pressure.

“Your OK before any work. Every time.”

What customers say

Welcomed like family.

Customers tell us they feel welcomed like family. They also mention honest advice, fair prices and quick help when brakes or tires can’t wait.

  • Welcomed like family
  • Honest
  • Fair prices
  • Quick on brakes & tires

Both my partner and I have made use of this great team a number of times. Always really satisfied with the customer service and the work they do. […] Highly recommend them!

— Customer review · BestProsInTown (opens in a new tab) · June 2025
S6 · Ontario Safety Standards Certificate

Buying, selling or plating a used vehicle?

You’ll likely need a Safety Standards Certificate. We inspect to the provincial standard and give you a straight answer: pass, must fix to pass, or advice that can wait.

  • Needed when a used vehicle changes hands in Ontario (spousal transfers excepted)
  • Valid for 36 days after the inspection
  • Ontario now issues certificates digitally, by email
Inspection tagExample
  • Brakes & measurements Pass
  • Tires & wheels Must fix to pass
  • Lamps & electrical Pass
  • Steering & suspension Pass
  • Cabin air filter Can wait

Illustration only. Every vehicle is inspected to Ontario’s standard.

Car keys being handed back to a customer
Fig. 02 · Keys back, questions answered
About Brothers Auto

Two brothers. One standard.

A family-run garage on South Branch Road, just west of Cornwall. Careful work, honest answers and fair prices, for every car that rolls in.

Customers tell us they feel welcomed like family. We take that seriously: every vehicle gets the same care we’d give our own.

Our story
S2 · Seasonal changeovers

Beat the first-snow rush.

Once temperatures stay below 7 °C, it’s time for winter tires. Book your changeover early and be ready before the first flakes fly.

  • Winter tires below 7 °C
  • Ask your insurer about the winter-tire discount
Book a tire changeover
Book a service

Tell us what’s going on.

Pick a service to start a booking request and we’ll call to confirm a time. Or just call: we’re happy to talk it through.

Hours & location

Opening hours
MON9:30 AM – 6:00 PM
TUE9:30 AM – 6:00 PM
WED9:30 AM – 6:00 PM
THU9:30 AM – 6:00 PM
FRI9:30 AM – 6:00 PM
SAT9:30 AM – 6:00 PM
SUNClosed
Brothers Auto Mechanic Inc.
17397 South Branch Rd
South Stormont, ON K6H 0C8

Just west of Cornwall, a couple of minutes from Highway 138 and the 401.