Auto Electrical Shops in Oshawa, ON

Find trusted auto electrical services in Oshawa. Compare prices, read reviews, and book online.

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Allen's Alternators & Starters
Oshawa • ≈ 10 km
AL
1255 Skae Dr, Oshawa, ON L1J 7A3, Canada, Oshawa
★ 5.0
10 Google reviews
Response ≈ 47 min $$ • Quotes free
Auto Electrical
📞 (905) 436-5338 Free quote • Verified
Team Auto
Oshawa • ≈ 8 km
TE
1270 Simcoe St N, Oshawa, ON L1J 4X4, Canada, Oshawa
★ 4.9
48 Google reviews
Response ≈ 45 min $$ • Quotes free
Auto Electrical
📞 (647) 294-0912 Free quote • Verified
Commercial Alternator & Starter
Oshawa • ≈ 10 km
CO
500 Raleigh Ave, Oshawa, ON L1H 3T2, Canada, Oshawa
★ 4.8
41 Google reviews
Response ≈ 36 min $ • Quotes free
Auto Electrical
📞 (905) 432-3336 Free quote • Verified
AV Electronics
Oshawa • ≈ 10 km
AV
1600 Simcoe St N, Oshawa, ON L1G 4X9, Canada, Oshawa
★ 4.7
30 Google reviews
Response ≈ 18 min $$$ • Quotes free
Auto Electrical
📞 (905) 242-3587 Free quote • Verified
Ace's Automotive Inc.
Oshawa • ≈ 9 km
AC
331 Park Rd S, Oshawa, ON L1J 4H6, Canada, Oshawa
★ 4.5
498 Google reviews
Response ≈ 28 min $$$ • Quotes free
Auto Electrical Auto MechanicBrake Services
📞 (905) 725-7200 Free quote • Verified
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Verified Reviews for Auto Electrical
★ ★ ★ ★ ★

“I have been using CAS for a number of years for repairs and annual tune-ups for my pool pump. Joe makes excellent repairs and maintenance in a very timely manner. Far more cost effective than trying to do work myself of purchasing new. Thanks Joe.”

John Hurst • Auto Electrical at Commercial Alternator & Starter, Oshawa
★ ★ ★ ★ ★

“Thanks for the service Joe. The rebuilt alternator is installed and working as expected in our 98' Chev 2500 4x4 Plow Truck. No more fluctuating voltages. I may consider a second battery next.”

Ender Gate • Auto Electrical at Commercial Alternator & Starter, Oshawa
★ ★ ★ ★ ★

“Very knowledgeable finds and fixes problems fast”

Extreme Moparpower • Auto Electrical at AV Electronics, Oshawa
★ ★ ★ ★ ★

“Great service and prices”

Lindsay K • Auto Electrical at Ace's Automotive Inc., Oshawa
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Find a Best Auto Electrical in Oshawa, ON

Boommar lists 5 verified mechanics in Oshawa. Compare real reviews, response times, pricing bands, and open bays — then book online.

Common Causes of Auto Electrical Problems

Aging or dead batteries that can no longer hold a charge
Corroded battery terminals disrupting the electrical connection
Failing alternator not properly charging the battery while driving
Blown fuses and damaged relays affecting individual circuits
Rodent damage to wiring harnesses under the hood
Water intrusion into electrical connectors and control modules

Signs Your Vehicle Has Electrical Issues

Dim or flickering headlights and interior lights
Slow engine cranking or clicking noise when turning the key
Multiple dashboard warning lights illuminating simultaneously
Power windows, locks, or seats intermittently failing
Burning electrical smell or visible wiring damage
Battery keeps dying overnight or after short periods

Auto Electrical Services Available

Battery Testing & Replacement

Load testing and installing a new battery

Alternator Repair

Testing and replacing the charging system

Starter Motor Replacement

Diagnosing and replacing failed starters

Wiring Repair & Harness Rebuild

Tracing and fixing short circuits and open circuits

ECU/Module Programming

Reprogramming engine and body control modules

Lighting System Repair

Fixing headlights, taillights, and turn signal circuits

Auto Electrical Tips

Have your battery tested before every winter—cold weather dramatically reduces battery capacity
Keep battery terminal connections clean and tight using a wire brush and anti-corrosion spray
If your vehicle sits for extended periods, use a battery tender to maintain the charge
Never attempt to jump-start a cracked or leaking battery—it could explode
Replace your battery every 4 to 5 years as preventative maintenance
If you notice a burning electrical smell, disconnect the battery and get a professional diagnosis immediately

Frequently Asked Questions

How much does an alternator replacement cost in Oshawa? +
Alternator replacement typically costs $400-$800 including parts and labor. Premium or European vehicle alternators can cost $600-$1,200+ due to more complex installations.
How do I know if my battery or alternator is the problem? +
If the car won't start but the lights work, it's likely the starter. If the battery keeps dying, a professional load test will determine if the battery itself is weak or if the alternator isn't charging it properly.
How long does a car battery last in Canada? +
In Canadian climates with extreme temperature swings, car batteries typically last 3 to 5 years. Harsh winters significantly accelerate battery degradation.
Can a parasitic drain kill my battery overnight? +
Yes, a parasitic draw from a faulty module, interior light, or aftermarket accessory staying on can drain your battery overnight. A mechanic can perform a parasitic draw test to isolate the circuit causing the problem.