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Top-Rated Bathroom remodel pros in Castro Valley - Updated Nov 2026

Avatar for BEAR Remodeling Inc.
BEAR Remodeling Inc.
4.8(
34
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Customers say: True professional

"We just finished my bathroom remodel and it turned out AMAZING! Better than I imagined it would. Due to COVID and some personal things, we had to delay starting the project and they were very accommodating. Weâ re already talking about some other projects i need done around the house."
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Weather Safe
Outdoor Kitchen - Clayton

+127

Response time9 hrs
9 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Skytech Builders
Skytech Builders
5.0(
21
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"I went with Sky Tech Builders on my 2 bathrooms remodel and I am thrilled with the outcome. Sky Tech Builders team was professional, clean and polite. There were no issues thanks to very disciplined and responsible working team. The project manager was also great, completely honest and communication with his was excellent. He also helped me to choose best possible materials within my budget. My bathrooms looks amazing! Highly recommended contractor!"
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo
Kitchen remodeling in Fremont
Master Bathroom Remodel in San Jose.
Kitchen Remodel in San Mateo

+63

Response time1 day
Response rate100%
14 neighbors recently requested a quote
Avatar for Bay Home Remodeling
Bay Home Remodeling
5.0(
11
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"I can highly recommend Bay Home Remodeling. I updated two bathrooms in my home. They were thorough, very professional and timely. I felt very comfortable while having them in my home. Tom, the project manager, was always available to deal with any questions or issues and/or suggestions. I was always kept informed about progress. I am very satisfied with their work. It was excellent, especially the tile in my bathrooms. Don't hesitate to work with them."
Kitchen & Bathroom Remodel @Orinda, CA
Kitchen & Bathroom Remodel @Orinda, CA
Kitchen & Bathroom Remodel @Orinda, CA
Kitchen & Bathroom Remodel @Orinda, CA
Kitchen & Bathroom Remodel @Orinda, CA

+105

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Geico Builders
Geico Builders
5.0(
62
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Warranties offered

"We are glad we went with Geico Builders for a full master bath remodel. They were very easy to work with, everything went as planned and we were very happy with the results. Diane was our main choice, she knew exactly how to invasion perfect layout of our bathroom remodel. They set up a group chat with everyone to coordinate and they forwarded us the results & paperwork as soon as they received it. Alex, the designer, was helpful in helping to putt together our design and vendor recommendations. She quickly responded to feedback & updates to our design, and she even worked through her vacation on our project. When one of the vendors got our order incorrectly, the Geico Builders team worked with them to quickly rectify the issue. During construction, the foreman, Tony, was very well-organized and good to work with. His team was friendly, careful, and they kept the place as clean as they could. They follow up with us throughout construction to ensure that every detail of the construction was built to what we wanted."
Composite Deck Replacement Trex
Full Backyard Remodel with Outdoor Kitchen
Remodeling - Kitchen & Bathroom Project
Deck Replacement Composit
Composite Deck

+270

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Cal Green Remodeling
Cal Green Remodeling
5.0(
18
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved (Corporate)

In business since 2015

Free estimates

Emergency services offered

"I found Cal Green Remodeling and its team who managed by Shay to be a very experienced, knowledgeable and creative asset to the remodeling project of our kitchen, living room, laundry room and guest bathroom. During the work, Shay was available for all of our questions/concerns and he also helped us with all the issues that were raised up during the work and we are very satisfied with our beautiful new remodeling project."
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California

+51

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Rose Remodeling & Design Inc.
Rose Remodeling & Design Inc.
4.8(
95
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"From start to finish, Rose Remodel and Design, with Adir at the helm, has coordinated an excellent remodel of our bathroom. It went from a moldy, chipped, crowded eyesore to a beautiful, functional, safe place. His initial vision, clear and detailed communication throughout the process, guidance in choosing products, and provision of a talented group of hard working experts has transformed the space. I highly recommend. Great personalized customer service."
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM
PHOTO ALBUM

+128

Response time6 hrs
Response rate95%
16 neighbors recently requested a quote
Avatar for My Construction Group
My Construction Group
4.6(
281
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"I had a fantastic experience with Abraham during my bathroom remodel. The skilled craftsmanship on the finished product was impressive. The team was professional, communicated well, and completed the project on time and within budget. I highly recommend them for a excellent remodeling experience!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+110

Response time2 days
10 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Y Group Remodeling, Inc
Y Group Remodeling, Inc
5.0(
23
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"At the end of our hallway bathroom remodel, our pocket door was not easy to open/close as it was very heavy. I wanted a solid core door as it was a very small bathroom. They gave me what I wanted! Now I have a very easy sliding pocket door with heavy duty track. Their workmanship is outstanding. Would I recommend Y Group? Absolutely. Would I rehire? In a heartbeat! They will listen to what the homeowner wants and deliver."
Complete Kitchen Remodel
Kitchen Remodel
Kitchen Island/Pendant lights/Countertop
Complete Kitchen Remodel
Kitchen Remodel

+33

Response time3 hrs
Response rate96%
Recommended by64%of homeowners
Avatar for Bear Remodeling, Inc.
Bear Remodeling, Inc.
4.8(
24
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: Quality work

"We had our bathroom remodeled by Bear Remodeling and we are thrilled with the process and the results. They were able to start quickly which was important to us. Idan was so much help in helping us choose materials and laying out the design. Whenever small issues came up they quickly had solutions and we love our new bathroom!"
living room remodel
Wet bar
waterfall island
gray shaker style cabinets
kitchen island

+158

Response time12 hrs
Response rate98%
35 neighbors recently requested a quote
Avatar for MCA Remodeling Inc.
MCA Remodeling Inc.
4.9(
12
)
Bathroom - Remodel

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"From the beginning, MCA offered excellent help while shopping with us to select materials for each room.  
They allowed space to express our likes and dislikes, while offering experienced suggestions when we were in doubt. 
Prudently, MCA was sure to order and receive all materials before beginning work.
MCA seems quite discerning in selecting their crafts people and associates, like painters, granite finishers, and shower door 
builders.
We found their team of workers to be honest, friendly, highly-skilled, and hard-working.
We learned and respected -- as we had heard widely -- that construction and remodeling has inevitable timing delays and surprise technical puzzles to solve.
Also MCA had days when other jobs and needs delayed our progress.
So at our home, there were days when nothing happened, and balancing moments when one, two, or more craftsmen were on the job. 
Money-wise, the MCA cost estimate was 30% less than the highest competitor.
They were totally true to their financial contract, even when unexpected, added modifications were needed.
Were we to identify MCA's growing edge, it would be improved communication and more focus on continuity to begin and finish in a slightly more timely manner.
We know that is easier for us to ask than it is to fulfill in the challenging world of remodeling and staffing.
It really does take a village to coordinate and complete all of the various requirements -- material choices, teamwork, electrical, plumbing, tiling, and much more.
There are inconveniences, surprises, and a need for patience.
In the end was it all worth it, and would we highly recommend MCA?
We surely would, YES."
MCA
Response time9 hrs
Response rate100%
6 neighbors recently requested a quote
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FAQs for bathroom remodel projects in Castro Valley, CA

You can buy a replacement vanity by selecting a pre-made unit with an integrated sink from a local home improvement supplier. Pre-made vanities are designed for easy installation and compatibility with your existing plumbing. If a ready-made option doesn't meet your needs, consider hiring a custom builder to create a vanity that fits your space and style.

You can purchase a bathroom vanity from major home improvement retailers like Home Depot and Lowe’s or online stores like Wayfair, which offer a variety of pre-made vanities. Visiting local showrooms and bathroom supply stores can also provide professional advice and help you choose the right vanity for your space.

Installing your bathroom vanity flush against the wall enhances stability and prevents shifting. This placement also eliminates hard-to-clean gaps and keeps your vanity securely in place. Building codes often require a minimum clearance of four inches from bathtubs and at least 21 inches of free space in front of the sink for accessibility and safety.

You can upgrade a single vanity to a double vanity by installing additional cabinets, a second sink, and matching fixtures. This process requires additional plumbing adjustments, countertop modifications, and careful alignment to ensure both sinks function correctly. Upgrading to a double vanity enhances bathroom functionality and offers more space, which is especially beneficial for shared bathrooms.

The best vanity top material depends on your budget, style preferences, and maintenance willingness. Materials like quartz or solid surfaces are excellent choices for durability and low maintenance. If you're on a tighter budget, laminate is affordable but less durable. Consider how much traffic your bathroom gets and choose a material that balances cost, appearance, and upkeep.

Installing a bathroom vanity takes between three and six hours. Simple installations may be completed in under three hours, while more complex projects requiring adjustments or plumbing modifications can take up to six hours or more. The installation process includes assembling cabinets, placing the countertop, installing the sink if necessary, and connecting plumbing.

The Castro Valley, CA homeowners’ guide to bathroom remodels

From average costs to expert advice, get all the answers you need to get your job done.