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Second Floor Addition Builders in Castro Valley, CA

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Service Pros

    PC

    "This was our second major project with Primework Construction and we couldnâ t be happier. It was so easy for us, Ben and his team handle everything. They took care of the architect plans, the engineering, permits, facilities for the crew, and clean up. They worked within our budget and completed the project ahead of schedule. They really go out of their way to treat us well. We highly recommend using them for any of your projects, big and small."

    William C. in October 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

    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

    Creekside Pro Construction, Inc. Logo
    Concord, CA·

    Hard landscaping, Home Renovations, Bathroom remodel , and 2 more

    "Jacob was personable, clear in his communication, had floors redone, roof new, bath remodeled, new kitchen, recessed lights, etc. Hadn't been updated inm about 40 yrs, looks great."

    Linda F. in October 2021

    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

    BB

    "We were so happy with our experience with BNO Builders and thrilled with the result of our beautiful kitchen! From the beginning, the owner and our project manager Omer Milner made us feel that weâ re in a good hands and he made sure to keep us updated on the project progress all the time. Their quality of work is amazing and they were so timely. Weâ re extremely satisfied with the work that was done and would highly recommend BNO and Omer to anyone whoâ s looking for a reliable and skilled contractor."

    Nicole P. in November 2023

    Prime Renovation Homes Logo
    San Jose, CA·

    Decks, Retrofit, Bathroom remodeling , and 1 more

    "Daniel and his team at Prime Remodeling Homes were professional and very reliable! I need to remodel my bathroom. It was outdated and had a lot of damage . I contacted this company and they were able to start the project within a week. The team was very efficient, gave great suggestions and options for the materials to use. I am very happy with the final result. All thanks to the team for giving me a positive experience. The new bathroom looks amazing and it was definitely worth the investment."

    Carol C J. in May 2022

    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

    Hagenbach Construction Logo
    Brentwood, CA·

    Additions to Existing Structure, Custom Home Builder, Kitchen - Remodel

    "I hired Hagenbach Construction based on a referral from my cabinet vanity vendor who I've done business with 4 years prior. John, his wife Amy, and his crew were AWESOME and the finished bathrooms can easily make an HGTV remodel or magazine feature. They were far better than I ever imagined. I wish I can post some photos here, but hopefully, the finished bathrooms will grace his website. My project involved two bathroom remodels - a master and guest (and the only two in my single story home) over a period of 7-8 weeks. The master bathroom was a total demo of the existing 200 sq. ft. space, on a slab floor and what we believed had post tension cables. It was a complex project, in my opinion, and one I waited on the right contractor to help me with. John was meticulous in the planning of the work, review of my design, and in every aspect of the tricky construction. While I had an initial design from the cabinet vendor, John validated the measurements, size of vanity, walk-in shower, shower seat and niches, placement of the freestanding tub, canned lights and wall sconces, vents, the new pocket door and bathroom door, etc.. The floor tiles and shower tile accent were very intricate, utilizing basketweave floor tiles and a herringbone shower tile accent. They were installed perfectly. John personally laid the shower tile accent on a piece of plywood for me to see and finalize before installation. The wall and placement of the carrara marble subway tiles and chair rails were also carefully planned across the room, so that he can plan for where the cut pieces were going to be. On the 6' x 6' walk-in shower, he assisted in getting me the best neo-angle configuration, with the best 30" door placement. He also guided me in the options for best hot water availability. There is nothing I would change in these bathroom projects and John and his crew were hardworking, meticulous, conscientious about the remodel inconvenience and were always a pleasure to work with. They always showed up early or when they said they would. I would recommend John and Hagenbach Construction to anyone for any project. Contractors like him are a gem, and few and far between. It shows that he and his crew take pride in their work."

    Brenda S. in November 2016

Showing 1-9 of 26 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.
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  • 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.  

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Things to Consider Before You Build a Second Story Addition in Castro Valley, CA:

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      • Bathroom
      • Kitchen
      • Bedroom(s)
      • Garage/Workshop
      • Living/Family room
      • Laundry/Mud room
      • Deck/Porch
      • Basement
      • Office(s)
      • Common area(s)

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