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Onyx Day Spa

4.1

About this business

Our expert providers specialize in every nail and spa service. 

Location details

20993 Redwood Rd, Castro Valley, CA, 94546, United States

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WeekdayScheduleStatus
Mon10:00 a.m. to 7:00 p.m.
Tue10:00 a.m. to 7:00 p.m.
Wed10:00 a.m. to 7:00 p.m.
Thu10:00 a.m. to 7:00 p.m.
Fri10:00 a.m. to 7:00 p.m.
Sat9:00 a.m. to 7:00 p.m.
Sun10:00 a.m. to 2:00 p.m.
4.137 reviews
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Nicoya Chirip's profile image
Nicoya Chirip 
recommend  Recommended
7 years ago

The place gets 100% excellent customer service and work definitely my new to go place. 

Nicoya Chirip's profile image
Nicoya Chirip 
7 years ago

The place gets 100% excellent customer service and work definitely my new to go place. 

Madhuri P. Kirkham's profile image
Madhuri P. Kirkham 
7 years ago

The staff here are fantastic - my nails look great when I leave and my gel manicures last between 2-4 weeks. They are patient and supportive of all my ridiculous requests. I come in with pictures and they try very hard recreate them. 

Earseleanne Patterson's profile image
Earseleanne Patterson 
8 years ago
Carmen Hernandez's profile image
Carmen Hernandez 
8 years ago
Rebecca Skipper's profile image
Rebecca Skipper 
8 years ago

Love this place! Sara is the best at deep tissue massages and getting rid of all the knots. 

Denise Gaston's profile image
Denise Gaston 
8 years ago

Had an amazing Herbelia Facial Treatment with Carrie, it was fabulous. I've been getting facials for years and I'm also an Esthetician so I know "good" I would highly recommend Onyx Day Spa. 

Tammy Adams's profile image
Tammy Adams 
8 years ago

Was the best 6 hours I've had in quite a while!!! They say full service they mean it!!! Thanks ladies!!! 

Samantha Hembree's profile image
Samantha Hembree 
8 years ago

Omg!! Onyx Day Spa was beyond GREAT!!!! BEST 6 hours EVER!!!! The people that work there are all very nice and easy to talk to and get along with. They pamper you from the moment you walk in the door to the time you walk out the door. If I could give them more stars I would instantly give them more stars!! Love it!!!! 

Frequently asked questions about Onyx Day Spa

How is Onyx Day Spa rated?

Onyx Day Spa has a 4.1 star rating with 37 reviews. 

When is Onyx Day Spa open?

Onyx Day Spa is open now. It will close at 7:00 p.m.  

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