Castro Valley Car Rental

Search and Compare from Car Companies in Castro Valley

Compare car suppliers to unlock big savings, and package your flight, hotel, and car to save even more.

Members save 10% more on select hotels, cars, activities and holiday rentals. Sign up.Opens in a new window

Enjoy maximum flexibility with penalty-free cancellation on most car rentals.

Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.

Frequently asked questions

What happens if I need to cancel my Castro Valley car reservation?
Depending on the cancellation policy, you may qualify for a refund. Many prepaid reservations provide a total refund if you cancel six hours ahead of the pickup time. Need more info? If you can’t find the answer in your booking details, our Customer Service Portal is always accessible.
Why should I rent a Castro Valley car with Expedia?
Expedia is the perfect place to book a set of wheels. With suppliers in Castro Valley to select from, we’re passionate about delivering awesome deals. Enjoy big savings with our member prices and exclusive offers, and earn rewards with every booking. You’ll save even more when you combine your bookings into a Castro Valley vacation package. Car rentals, hotels, tours, flights — Expedia has everything you need in one convenient place.
How do I find the best car rental deals in Castro Valley with Expedia?
Check ratings and reviews, choose your car class and compare prices from leading providers. Expedia makes it a cinch to track down the best deal on your rental wheels. Bundle your Castro Valley car rental with hotel or flight bookings and drive away with even more savings.
What do you need to rent a car in Castro Valley?
The essentials are a valid driver’s license and a credit card in your name. Most car rental companies will offer you insurance, which is optional. But you may be asked to provide proof of other coverage if you choose to opt out. Check with your rental agency to avoid any hassles.
Can I rent a car for a month or longer in Castro Valley?
Whether you plan to stop in Castro Valley or explore what’s beyond, you can book a long-term rental with Expedia. Enter your trip information and pick-up/drop-off locations and we’ll help you find affordable long-term car rental deals.
Where can I find a Castro Valley car rental if I am younger than 25?
You’ll need to check the age policy of the Castro Valley rental suppliers you’re interested in. If you’re under the age of 25, some companies will charge additional fees. It’s good to know this before arriving at the desk so you can tailor your budget accordingly. Each rental car company has its own policies for young drivers, so it’d be wise to do your research.