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Guest House Builders in Castro Valley, CA

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Service Pros

    Babylon Builders Logo
    Riverbank, CA·

    Concrete Work/ Pavers, Landscape -Design /Install/ Remodel, Outdoor kitchens, out living, xeriscape, Decks-Pergola/ Fence , and 2 more

    "They were very professional and left every thing picked up and cleaned. The project was done to my expectation."

    Jenny K. in October 2022

    GPI Builders, Inc. Logo
    Walnut Creek, CA·

    Concrete and Masonry, Decks and Railings, Additions and Remodels , and 1 more

    "Me and my husband looking for contractors, after long research we found GPI Builders and they provide the best service. We did remodeling to our bathroom and master bedroom. They also gave us a great design! The crew pay attention to every details + responsive very quickly to any issue we had. Thanks!!!"

    Jennifer G. in December 2021

    HR
    San Leandro, CA·

    Remodeling

    "This kitchen remodeling company was a pleasure to work with. Their communication was excellent, and they delivered a high-quality finished product."

    Winston H. in March 2023

    Palm Construction, Inc. Logo
    San Diego, CA·

    Decks, Roofing

    "I got few leaks in the roof that was an issue for us during the winter, the company I called to repair asked me For almost twenty thousand dollars just for A repair so I decided to get more bids, palm construction representative check our roof from above and from the attic, I understand that our old wood tiles roof are originally installed straight on the beams with no plywood! I decided to go with a professional job and I did a good decision! I m happy with our new roof!"

    Mariana L. in December 2020

    DR
    Hayward, CA·

    Additions and Remodels

    "It was great working with Dream to Reality Remodeling Overall the experience was amazing. From start to finish it went smoothly. The final outcome was impressive. They Remodeled our kitchen and the before and after difference was out of this world."

    Gannie M. in May 2021

    EH
    Commerce, CA·

    Custom Home Building, Additions & Remodels

    "We contacted them for remodel of 2 of our bathrooms. Excellent work by the project manager and his team on our master bathroom and guest bathroom remodel. He helped us come up with a good design and took care of everything including scheduling inspections and approval of permits. He even accompanied us during shopping trips and provided valuable inputs to help us pick finishing materials. He is also very receptive of critical feedback and goes the extra mile to make sure we are happy with the work at the end of the day. Overall very pleasant experience working with the manager and his crew. Highly recommended!"

    George E. in August 2022

    WR
    San Jose, CA·

    room addition

    "Shay and his team is really exceptional. Shay provided us various ideas for remodeling our guest bathroom. They provided the best quote for our guest bathroom remodel project after hunting over a month or so. We remodel and build gave equal importance to each and every step of way. Special thanks to Marco, who is Shay's contractor who is expert in plumbing, electrical and any type of installation. They are very responsive and complete the tasks in a timely manner.  We highly recommend We remodel & build for any type of remodel projects. We look forward to work with them in the near future."

    Karan M. in August 2021

    Casa Utopia Builders Inc Logo
    Campbell, CA·

    Home Additions, New Home Construction, General Contractor , and 2 more

    "I was amazed by their professionalism, responsiveness, and ability to transform my kitchen exactly how I dreamed. I would highly recommend them. I had an amazing experience with this business."

    Kelly W. in February 2023

    Future Vision Remodeling, Inc. Logo
    San Jose, CA·

    Major Home Repairs, Additions to Existing Structure, Remodel Bathroom , and 1 more

    "My initial contact with the project manager of my job was the best. He was sincere, courteous, professional and very pleasant to work with. In addition, the contractor was exceptional and I would most definitely hire him again! HE WAS ALWAYS WILLING TO WORK WITH ME ON ANY PROBLEM OR QUESTION. He was very professional, courteous of my home and its contents, and a pleasure to be around. The final product was far beyond my expectations!"

    Karen K. in April 2020

Showing 1-9 of 19 results

Frequently asked questions

  • It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
  • You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
  • It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.

HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.

Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.

You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website. 

Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:

  • Have you completed a job like this before?
  • Do you have a list of references I can contact?
  • When are you able to start the job?

In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down. 

  • How many years of experience do you have?
  • What’s your permanent business address?
  • Are you licensed to work in my area?
  • When did you earn your business license?
  • How do you handle warranty service complaints?
  • Do you have worker’s compensation, property damage and personal liability insurance?

Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.  

Related Projects in Castro Valley, CA

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Castro Valley Addition & Remodeling Contractors are rated 0.0 out of 5 based on 0 reviews of 0 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.


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Things to Consider Before You Build a Guest House in Castro Valley, CA:

What best describes this project?

    What type of guest house/casita addition will this be?

    • Detached addition
    • Addition attached to home
    • Remodel existing space

    Select the rooms included in this project:

    • Bathroom
    • Kitchen
    • Bedroom(s)
    • Living/Family room
    • Laundry/Mud room
    • Deck/Porch

    Do you provide these professional services?

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