Mon–Fri 7:00 AM – 4:30 PM 2150 Post Oak Tritt Rd, Ste 100, Marietta, GA 30062
After-hours pickup and key drop-off available (770) 509-2140 (770) 509-2140
FREE INITIAL INSPECTION
Service Areas · Alpharetta, GA

Transmission repair near Alpharetta — 26 minutes to a specialist.

Our shop is in East Cobb, 13.7 miles from Alpharetta's center — about 26 minutes out Rucker Road and Cox Road, or down through Roswell on GA-120. Alpharetta drivers usually reach us for the jobs where a specialist matters: a rebuild worth doing right, a CVT the dealer will only replace, or a second opinion on a quote that felt like a car payment. All of it starts with a free road test, scan, and lift inspection.

Guardian Transmission Repair at 2150 Post Oak Tritt Rd, Marietta GA — green metal roof, red Guardian sign
The shop itself — one location on Post Oak Tritt Road serves every city on this page.
Newer cars, different problems

Alpharetta's fleet is newer — and newer transmissions fail differently.

Alpharetta's housing — and its vehicles — mostly date from the 1990s onward. Late-model transmissions fail less from age and more from design: CVTs with known belt and valve-body weaknesses, eight- and ten-speed automatics with software-sensitive shift complaints, and "lifetime" fluid that was never going to last a lifetime. A lot of those problems have targeted fixes — fluid and reprogramming, a valve body, a converter — well short of the replacement a dealer quotes.

When it genuinely is beyond repair-in-place, we rebuild it in house — including CVTs, which most shops won't open — and back it 2 years / 24,000 miles, with optional ATRA nationwide coverage.

The math on a still-financed car

A transmission problem on a car you're still paying for is a rough spot: trading it in with a known fault costs you at the appraisal, and the dealer's replacement quote can rival the remaining loan. A free initial inspection tells you what the real, smallest fix is before you make a five-figure decision either way.

Drop-off logistics from Alpharetta

Call and set a drop-off day so the trip counts. Multi-day job? Settle the invoice with us when it's done and we'll leave the keys exactly where you tell us — no racing our 4:30 close down GA-120.

Fulton emissions

Alpharetta is in Fulton County: a check engine light — including a transmission code — automatically fails the annual emissions test and blocks tag renewal. Here's how we fix the cause →

Get the real answer before the big decision.

Free initial inspection, written quote that doesn't move, rebuilds backed 2 years / 24,000 miles.