PROFESSIONAL SERVICE

Alternator Repair & Replacement

Your alternator keeps your battery charged and powers your vehicle's electrical systems while the engine is running. A failing alternator can leave you stranded without warning. Advantage Auto Service diagnoses and replaces alternators quickly and affordably in Marietta, GA.

ASE-Certified Technicians
24-Mo / 24K-Mile Warranty
4.7+ Google Rating

About This Service

Signs of a failing alternator include dimming headlights, a battery warning light, electrical accessories behaving erratically, or a dead battery that keeps coming back. Our technicians use professional diagnostic equipment to test your alternator output and determine whether repair or replacement is needed.

What's Included in Our Alternator Service

When you bring your vehicle to Advantage Auto Service for alternator, you get a comprehensive, professional service that goes beyond the basics. Here's exactly what we include:

Alternator output testing with professional equipment
Belt and tensioner inspection
Battery and charging system testing
Quality OEM or aftermarket alternator replacement
Charging voltage verification after service
Electrical system inspection

6 Warning Signs Your Alternator Is Failing

Don't ignore these warning signs. Early detection can prevent costly damage and keep you safe on the road.

  • Your headlights are noticeably dimmer than usual
  • Your dashboard warning lights are illuminated
  • Your electrical accessories are working erratically
  • Your battery keeps dying even after charging
  • You hear a whining or grinding sound from the engine
  • You are having difficulty starting your vehicle

How Often Should You Get Alternator Service?

Alternators typically last 80,000 to 150,000 miles. There is no set service interval, but if you notice signs of a failing alternator, have it tested immediately. Early detection prevents being stranded and protects your battery from repeated discharge cycles.

Why Choose Advantage Auto Service?

ASE Certified

All technicians are professionally trained and ASE certified.

Warranty Backed

We stand behind our work with a comprehensive service warranty.

Fair Pricing

Transparent, upfront pricing with no hidden fees or surprises.

Frequently Asked Questions

What does an alternator do?
An alternator generates electricity to charge your battery while the engine runs. It also powers your vehicle's electrical systems like lights, radio, and air conditioning.
How long does an alternator last?
Most alternators last 80,000 to 150,000 miles or 10-15 years. Extreme temperatures, electrical problems, or manufacturing defects can shorten lifespan.
What are signs of a failing alternator?
Signs include dimming headlights, battery warning light, dead battery, or strange electrical noises. If you notice these, have your alternator tested immediately.
How much does alternator replacement cost?
Alternator replacement typically costs $400-$800 including labor. We offer competitive pricing and warranty on all alternators.
Can I drive with a bad alternator?
You can drive briefly on battery power, but your battery will drain quickly. Have your alternator repaired immediately to avoid being stranded.

Financing Available

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Book Your Alternator Service

Call us or book online. Same-day service available.

BOOK APPOINTMENT(770) 951-8055

Our Location

Advantage Auto Service
1775 Cobb Pkwy SE
Marietta, GA 30060
Hours
Mon – Fri: 7:00 AM – 5:30 PM
Saturday – Sunday: Closed

Don't Wait — Book Your Alternator Service Today

ASE-certified technicians. Fair pricing. 24-month/24,000-mile warranty.