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4.1

(56 reviews)

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Avatar for Tech Line Construction Inc.
Tech Line Construction Inc.
4.9(
19
)

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"It's difficult to trust contractors these days. We had a bad experience in the past with another contractor and we were very hesitant to use one again. However, we decided to give Tech Line Construction a chance because our friend recommended them. We are so glad that we did! They painted the exterior of our house and handled a bigger project for our property. I admire how Luis always kept us in the loop and he was always available to answer our questions. We'll pass the word to our friends and family about this company. They're the real deal!"
12 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for EA Home Builders, Inc.
EA Home Builders, Inc.
5.0(
22
)

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"Eric and his EA Homebuilders team remodeled our primary bathroom, which involved moving walls, framing, plumbing, electrical, installing a tile shower, and finishes. I had never worked with them before. Their quote was competitive, their work progressed at a rapid pace, and they finished the project in the timeframe promised. There were 2 occasions where changes needed to be made and they were reasonably accommodated without any nickel-and-diming. Eric is a great communicator and is always asking the customer if they need anything. Working with a contractor for the first time is always a nervous experience, but EA Homebuilders delivered on everything, and they will be invited to bid on all of my future projects."
Modern kitchen in concord
Modern kitchen in concord
Modern kitchen in concord
Modern kitchen in concord
Modern kitchen in concord

+49

Response time5 hrs
Response rate99%
65 neighbors recently requested a quote
Avatar for Skytech Builders
Skytech Builders
5.0(
21
)

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Great contractor! It was a really pleasure to work with this company. They did my kitchen, it was a full remodeling and I am thrilled how fantastic everything turned out! I would highly recommend Sky Tech Builders and would definitely work with them again!"
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
30 neighbors recently requested a quote
Recommended by100%of homeowners
Bayside Builders Group, Inc.
4.9(
54
)

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We had been looking for months now on who we should hire to build our custom dream home out in the countryside but had no luck until a friend suggested his contractor called Bayside Builders. We hired them and they came out to start giving us some ideas on what we want done with our home. It was clear that this company has been doing this for quite some time because they were professional and knew how to get things done correctly. We're glad that things went according to plan because it feels great knowing that you can trust your contractor and that they know what they are doing."
Response time5 days
Recommended by82%of homeowners
Avatar for Bay Easy Construction
Bay Easy Construction
4.3(
154
)

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"We are very happy with this company. They have done some work at our townhouse and we are definitely hiring them for any other future renovations. It is so difficult to find a contractor you can trust and when we met Ofer, we are very pleased. He is easy to talk to and he listened to what we want to get done and worked with our budget."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time10 hrs
8 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Tech Line Construction, Inc.
Tech Line Construction, Inc.
4.9(
19
)

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"We had a great experience working with Tech Line Construction. They did a complete remodel of our kitchen, bathroom, and flooring. The whole process was very smooth and we are extremely happy with the results. Cooking in our new kitchen is a joy and we can't wait to entertain guests in our beautiful space."
Fremont
Fremont
Remodel
Beautiful Kitchen Remodel
Beautiful Kitchen Remodel

+28

Response time2 days
1 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for Streamline Renovators LLC
Streamline Renovators LLC
4.7(
12
)

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"We hired Streamline to replace a support beam in our kitchen that was too small. They came out and looked and gave us a quote. They started on time and stayed until the job was done. It took several days, but Mark and Harry were in constant contact and communication with them was great. We didn’t have to worry about the little things that pop up on jobs like this. They did exactly what they promised and even came back a few extra times to make sure it was perfect. Everything about this team was just wonderful. My wife and I are extremely grateful for their effort and would absolutely hire them again"
2nd Bathroom
Glenville San Jose CA
Glenville San Jose CA
Hollister Kitchen Remodel
Front Entry with Custom Door

+73

Response time3 days
10 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Build Atlas
Build Atlas
5.0(
13
)

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"STOP if you are wondering who to hire, think no further because Leonel is for you! Our project was to takeover the work of a previous contractor, Leonel stepped in and boy did he come through...taking on a project that was pulled apart by someone else is hard enough but taking on one such as the magnitude of ours and completing it early goes to show what an incredible craftsman Leonel is. He was very articulate in making sure he was on track and following the guidelines, he communicated daily with arrival times and any access or requirements he might need. The quality of his work is superior, everything looks wonderful and its all thanks to Leonel."
Updated Tile Flooring
Updated Vanity & Fixtures
Added Shelving & Accessories
Newly updated kitchen
Outdated Kitchen

+19

Response time5 hrs
Recommended by76%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.5(
30
)

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Our remodeled kitchen exceeded all expectations. Leoni’s eye for design brought our ideas to life, creating an open and functional layout perfect for entertaining. The team’s craftsmanship was top-notch, and they respected our home, leaving it clean each day. The project was finished on time and within budget, and our kitchen now feels like a welcoming and sophisticated part of our home. I’d recommend McCormick to anyone wanting a home transformation without stress!"
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+1

Response time6 hrs
Recommended by22%of homeowners
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FAQs for contractor service projects in Castro Valley, CA

Generally, general contractors charge between $50 and $150 hourly, though not every contractor charges by the hour. If charging based on the project, you can expect a markup of 10% to 20% of the construction cost. You can expect to pay between $300 and $500 daily if charged by the day.

General contractors are the ones that coordinate home construction projects. They are in charge of the day-to-day oversight of the subcontractors to ensure that the project is completed on time and to resolve problems as they arise. General contractors:

  • Complete pre-construction planning, both with the customer and crew

  • Provide realistic cost estimates

  • Develop construction timelines

  • Ensure deadlines are met

  • Acquire permits as needed

  • Purchase supplies and materials

Before hiring a general contractor for your home project, it’s a great idea to write down a list of questions to discuss with each prospect. Some example questions to get you started include:

  • Which types of insurance do you carry?

  • Can you provide a list of references?

  • What is the expected timeline for this project?

  • How will my project be supervised?

  • Will you hire subcontractors for the job?

  • What is the best way to communicate changes?

  • Will you obtain all of the required building permits?

While city and state laws vary on general contractor licensing requirements, hiring an unlicensed general contractor could lead to poor quality work, costly future expenses, and potential code violations. Be sure to check our state licensing tool to review the local general contractor guidelines for your area.

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

Yes, most general contractors require a down payment for project completion. A reasonable down payment for a contractor is 10% to 25% of the total project cost, though that will vary based on project size and location. The down payment helps cover the upfront costs of materials and permits and helps ensure payment for the project at hand. 

The Castro Valley, CA homeowners’ guide to contractor services

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