What Our Customers Say
Welcome to Castro Valley Union 76,
your car service in Castro Valley, CA!
If you’re looking for auto repair in Castro Valley, CA, you’ve found us. Here at Castro Valley Union 76 we work hard to earn your trust and loyalty. We know how important it is to find a Castro Valley car service you can rely on, so your satisfaction is our top priority each and every day.
Here at Castro Valley Union 76 we understand what makes customer service truly outstanding. You will feel the difference exceptional customer care makes when you work with us. We know auto repair in Castro Valley offers you lots of choices, and we aim to provide the kind of caring customer service that will bring you back.
Our professional automotive service offers you years of combined expertise from our well-trained technicians. We treat our auto repair professionals well because we value their skill and can-do attitude. We know our team sets us apart, saving you time and money, not to mention worry. When it comes to auto repair in Castro Valley, we are totally confident that Castro Valley Union 76 is the best option in town!
Address
Castro Valley Union 76
2445 Castro Valley Blvd
Castro Valley, CA 94546-5119
(510) 581-6700
Shop Hours
Mon-Fri: 7:30am-5:30pm
Saturday: 7:30am-2pm
Sunday: Closed
Directions
Payment Types








About Castro Valley Union 76 Castro Valley, CA
Since 1984 Castro Valley Union 76 has been there for the people of Castro Valley, CA. We love what we do, and that basic fact fuels our business. We are dedicated to our customers, and that’s why they stick with us—the best auto repair Castro Valley has to offer.
Our family of technicians and service staff sees their work here at Castro Valley Union 76 as more than a job. It’s their vocation and livelihood. Each member of our team is invested in your satisfaction.
Castro Valley Union 76 was founded on the basic idea that everyone deserves respect. It is our mission to treat each person that comes through our door with dignity and sensitivity. We believe this attention to detail has paid off by providing us with our loyal, friendly family of customers. That’s what makes Castro Valley Union 76 the best car service in Castro Valley, CA!
Are you ready to experience the best Castro Valley, CA car service available? Please give us a call or make an appointment here.
The Absolute Best Car Service in Castro Valley, CA
What sets Castro Valley Union 76 apart from all of the others in Castro Valley, CA?
Trust: When it comes to auto repair in Castro Valley, it’s all about earning loyalty and trust by doing our very best every day. We are determined to earn and keep your trust.
Talent: At Castro Valley Union 76, you can rest easy knowing that our highly-skilled, experienced auto service professionals are handling your car. Our technicians bring years of experience, skill, and education to the Castro Valley auto repair table.
Time: We take the time we need to provide you with top quality car service in Castro Valley, and we take the time to talk to you about what that means. We listen to you so we understand your needs and goals for your auto repair.
Recently Serviced Vehicles
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2017 Kia Soul
Mileage125,966Service Date12/9/2025Services Performed- FLYWHEEL (STD TRANS) – Remove & Replace
- CLUTCH SLAVE CYLINDER – Remove & Replace – [Includes: Bleed Clutch Hydraulic System.]
- CLUTCH MASTER CYLINDER – Remove & Replace – [Includes: R&I Battery.] – [Includes: Bleed Clutch Hydraulic System.]
EDWARD M. gave our service a 5 star review on 12/11/2025 -
2014 Honda Ridgeline
Mileage68,904Service Date11/28/2025Services Performed- WHEEL STUD – Remove & Replace – Rear,One,One Side
RICHARD M. gave our service a 5 star review on 12/2/2025 -
2017 Toyota Camry
Mileage86,699Service Date11/24/2025Services Performed- Smog inspection and certificate if passes
NANCY W. gave our service a 5 star review on 11/25/2025 -
2011 Honda Pilot
Mileage179,272Service Date11/20/2025Services Performed- Found code P0420 for cat converter efficiency bank 1 and code P3400 for variable position oil switch stuck off bank 1. Found bank 1 (firewall side) cat converter to be bad for code P0420. Found variable timing spool valve with oil pressure switch built in to be bad for code P3400. Recommend remove and replace bank 1 spool valve, bank 1 (firewall side) cat converter and oxygen sensor before and after bank 1 cat due to age, clear check engine light and road test the vehicle. Permanent codes have cleared and all monitors have ran including cat converter.
- Haz disposal fee
- Lubricate and check chassis. Change oil and oil filter. Check air filter and breather filter. Check all fluid levels and tire pressures. Preform basic safety inspection. Road test vehicle.
- CATALYTIC CONVERTER – Remove & Replace – Rear,(w/Exhaust Manifold),at Rear of Engine
- VARIABLE VALVE TIMING OIL CONTROL VALVE SOLENOID – Remove & Replace – Rear
- SERPENTINE BELT TENSIONER & BELT- Remove & Replace
KATHY N. gave our service a 5 star review on 11/20/2025 -
2018 Dodge Charger
Mileage95,483Service Date11/18/2025Services Performed- Haz disposal fee
- Lubricate and check chassis. Change oil and oil filter. Check air filter and breather filter. Check all fluid levels and tire pressures. Preform basic safety inspection. Road test vehicle.
- DMV ID# 7948W667U088
JULIE M. gave our service a 5 star review on 11/20/2025 -
2013 Honda Odyssey
Mileage58,536Service Date11/19/2025Services Performed- Haz disposal fee
- Lubricate and check chassis. Change oil and oil filter. Check air filter and breather filter. Check all fluid levels and tire pressures. Preform basic safety inspection. Road test vehicle.
JUDY R. gave our service a 5 star review on 11/19/2025 -
2014 Toyota Prius
Mileage95,691Service Date11/10/2025Services Performed- Haz disposal fee
- Lubricate and check chassis. Change oil and oil filter. Check air filter and breather filter. Check all fluid levels and tire pressures. Preform basic safety inspection. Road test vehicle.
DANIEL M. gave our service a 5 star review on 11/17/2025 -
2006 Ford Explorer
Mileage215,958Service Date11/14/2025Services Performed- Found code P0135 for oxygen sensor heater circuit bank 1 sensor 1, code P0141 for oxygen sensor heater circuit bank 1 sensor 2, code P0155 for oxygen sensor heater circuit bank 2 sensor 1, code P0161 for oxygen sensor heater circuit bank 2 sensor 2, code P0403 for EGR A control circuit/open, and code P0443 for evap purge control valve "A" circuit. Found fuse 42 in battery junction box to be blown due to short in wiring harness. Also found short in wiring harness has taken out ground signal for evap purge valve. Recommend remove and replace main engine harness, engine PCM with used PCM since new PCM is no longer available, program 2 new keys from dealer to vehicle after harness and PCM install, clear check engine light and road test the vehicle. Emission monitors have ran, perform smog inspection.
- PCM/PROCESSOR ASSEMBLY – Remove & Replace – V6 – [Includes: Component test.]
- Replace engine harness from pcm to oxygen sensors and other components
- Program PCM with ford software
- Smog inspection and certificate if passes
BRAD F. gave our service a 5 star review on 11/14/2025 -
2022 Mercedes-Benz GLB250
Mileage46,740Service Date11/10/2025Services Performed- Mount and balance four new tires
- California disposal fee
- Federal disposal fee
DANIEL L. gave our service a 5 star review on 11/12/2025 -
2017 Toyota RAV4
Mileage77,633Service Date11/7/2025Services Performed- Smog inspection and certificate if passes
JAMES M. gave our service a 5 star review on 11/7/2025 -
2012 Honda Accord
Mileage194,216Service Date11/4/2025Services Performed- Charge battery and check charging system found it is only charging 12.7 volts also alternator bearing making noise, recommend replacing alternator and fan belt, check charging system again. After replacing the alternator it is charging 14.03 volts.
MELISA S. gave our service a 5 star review on 11/5/2025 -
2017 Acura MDX
Mileage161,129Service Date10/29/2025Services Performed- Smog inspection and certificate if passes
ARASH F. gave our service a 5 star review on 10/29/2025










