Honest auto repair on 3rd Street

Honest repairs that keep your car on the road

T-21 is the Bayview garage San Francisco trusts — a 5-star Google rating across 140 reviews for careful diagnosis, fair pricing, and work done right.

T-21 Auto Services and Repairs work
5.0★
Google Rating
140
Google Reviews

Services

Everything we take on.

Engine Diagnostics & Repair
01

Engine Diagnostics & Repair

We test systems before recommending replacement, so you only pay for repairs your car actually needs — from tracking down leaks to confirming a failing component.

Routine Maintenance & Oil Service
02

Routine Maintenance & Oil Service

Oil service, filters, and general maintenance that keep your car — even an older one — running smooth for the long haul.

Cooling System Repair
03

Cooling System Repair

Radiator replacement and radiator hose service to keep your engine running at the right temperature.

Exhaust & Emissions
04

Exhaust & Emissions

Catalytic converter and oxygen sensor service — tested first, replaced only when it's truly needed.

Tune-Ups & Ignition
05

Tune-Ups & Ignition

Spark plugs, ignition switch repair, and tune-up work to keep your engine starting and running strong.

Wheel Alignment & Balancing
06

Wheel Alignment & Balancing

Alignment and wheel balancing for a smoother, safer ride and longer-lasting tires.

Photos

A look around.

T-21 Auto Services and Repairs in San Francisco, CA
T-21 Auto Services and Repairs in San Francisco, CA
T-21 Auto Services and Repairs in San Francisco, CA
T-21 Auto Services and Repairs in San Francisco, CA
T-21 Auto Services and Repairs in San Francisco, CA
T-21 Auto Services and Repairs in San Francisco, CA

We don't throw parts at problems — we fix them.

Our story

A neighborhood garage that does the job right

At T-21 Auto Services and Repairs, we believe you should only pay for the work your car actually needs. That's why we test before we replace — customers know us as the shop that doesn't just throw parts at a problem, whether we're tracking down a leak or confirming a catalytic converter really is at the end of its life. From our garage at 4049 3rd Street in San Francisco's Bayview, Joe and the team handle everything from oil service and spark plugs to radiators, alignments, and emissions work — and we're known for keeping older cars running smooth for years. Fair pricing, straight answers, and repairs that hold up: that's what has earned us a 5-star rating across 140 Google reviews. We're open six days a week and happy to take walk-ins. Stop by or give us a call — we'll give you an honest assessment and get you back on the road.

  • We test before we replace — no throwing parts at a problem
  • Fair pricing on every job
  • Walk-ins accepted, open six days a week

What customers say

“What I especially appreciate is that they don't just throw parts at a problem. They tested the catalytic converter system before recommending replacement, caught related issues while already working on the car, and handled smaller maintenance items like filters in a very fair way. That kind of judgment matters a lot when you're maintaining an older vehicle.”

Daniel Hester

“I finally found a shop that has honest mechanics who work there. Joe and his Staff is very knowledgeable and helpful. Their prices are affordable to all budgets.”

Mrryan Anonuevo

“They always do great work. Job is always fair with pricing and their work is reliable and fast. For as old as my car is they keep it running smooth. If you're ever in need these are the guys to go to.”

Rene Luna

Get it booked.

Serving San Francisco, CA.

(415) 684-6310

4049 3rd St, San Francisco, CA 94124, USA

Get directions →

Hours

Open now
Monday
8:30 AM – 6:00 PM
Tuesday
8:30 AM – 6:00 PM
Wednesday
8:30 AM – 6:00 PM
Thursday
8:30 AM – 6:00 PM
Friday
8:30 AM – 6:00 PM
Saturday
8:30 AM – 3:00 PM
Sunday
Closed

Read all 140 Google reviews (5★)

Whichever you prefer — one of the two is enough.

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4049 3rd St, San Francisco, CA 94124, USA

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T-21 Auto Services and Repairs

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