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TRUSTED BY CASTRO VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon33
    Verified home building services reviews

Find Home builders in Castro Valley

Avatar for McCormick Home Builders, Inc.

McCormick Home Builders, Inc.

4.31(
21
)
Approved Pro

McCormick Home Builders, Inc.

4.31(
21
)
Approved Pro
Customers say: True professional
2017 years of experience
Free onsite estimate

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025


Avatar for DevArt8 Builders

DevArt8 Builders

5.00(
3
)
Approved Pro

DevArt8 Builders

5.00(
3
)
Approved Pro
Customers say: Quick response
2005 years of experience
Free onsite estimate

As a trusted general contractor in San Jose, We specialize in all phases of home building, remodeling for your home, business, bathrooms, kitchens, finishing basements, garages, barns, sheds, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Our kitchen always felt too small and cluttered, so we extended it into the unused dining space. DevArt8 Builders guided us through every step, from designing the layout to choosing materials. They added more storage that made the organization so much easier and improved the overall layout of the space. The team was professional, easy to work with, and kept everything on schedule."

Charles Arthur C on February 2025

As a trusted general contractor in San Jose, We specialize in all phases of home building, remodeling for your home, business, bathrooms, kitchens, finishing basements, garages, barns, sheds, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Our kitchen always felt too small and cluttered, so we extended it into the unused dining space. DevArt8 Builders guided us through every step, from designing the layout to choosing materials. They added more storage that made the organization so much easier and improved the overall layout of the space. The team was professional, easy to work with, and kept everything on schedule."

Charles Arthur C on February 2025


Avatar for BNO Builders

BNO Builders

5.00(
2
)
Approved Pro

BNO Builders

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2005 years of experience

BNO Builders is a locally owned and operated company with over 20 years industry experience. We are a full service general contractor. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We will treat your home as if it were our own. Workmanship guaranteed. Call us today!

"BNO Builders did a fantastic job on our home renovation. Nestor, our contractor, was a knowledgeable and compassionate professional who walked us through the whole process from the start to finishing the smallest details. He made sure everything was done to a high standard. The workers were all very respectful of us and the property. And they finished our whole townhome faster than any of the other contractors quoted. We would choose BNO over and over again so long as Nestor would be our contractor. We put our full trust in him, and he came through every time."

Dina P on August 2024

BNO Builders is a locally owned and operated company with over 20 years industry experience. We are a full service general contractor. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We will treat your home as if it were our own. Workmanship guaranteed. Call us today!

"BNO Builders did a fantastic job on our home renovation. Nestor, our contractor, was a knowledgeable and compassionate professional who walked us through the whole process from the start to finishing the smallest details. He made sure everything was done to a high standard. The workers were all very respectful of us and the property. And they finished our whole townhome faster than any of the other contractors quoted. We would choose BNO over and over again so long as Nestor would be our contractor. We put our full trust in him, and he came through every time."

Dina P on August 2024


Avatar for MB Custom Builders, Inc.

MB Custom Builders, Inc.

New on AngiNew on Angi
Approved Pro

MB Custom Builders, Inc.

New on AngiNew on Angi
Approved Pro
2011 years of experience
Free onsite estimate

MB Custom Builders Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

MB Custom Builders Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


RSF Construction Inc.

New on AngiNew on Angi
Approved Pro

RSF Construction Inc.

New on AngiNew on Angi
Approved Pro
2019 years of experience
Free onsite estimate

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!


Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
2023 years of experience
Free onsite estimate

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for Green California Builders

Green California Builders

4.87(
31
)

Green California Builders

4.87(
31
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Green California Builders specializes in the design and remodeling of kitchens, bathrooms, outdoor landscape, roofing, additions and garage conversions in the Bay Area. Our #1 priority is our clients satisfaction on every renovation. $5,000 Minimum Job.

"Green California Builders exceeded our expectations. We interviewed several companies, but they stood out from the start with their professionalism and honest, no-BS approach. What I appreciated most was their transparency—there were no hidden fees or vague answers. The project manager was always available to answer our questions, even on weekends. When there was a delay on a specific tile we had chosen, they let us know immediately and offered great alternatives. The final result is stunning. Our new bathroom has custom cabinetry, matte black fixtures, and this amazing herringbone tile wall that’s now my favorite part of the house. It’s rare these days to find contractors who are so detail-oriented and respectful of your home. If you’re thinking about a remodel, you won’t regret going with them."

Greg H on May 2025

Green California Builders specializes in the design and remodeling of kitchens, bathrooms, outdoor landscape, roofing, additions and garage conversions in the Bay Area. Our #1 priority is our clients satisfaction on every renovation. $5,000 Minimum Job.

"Green California Builders exceeded our expectations. We interviewed several companies, but they stood out from the start with their professionalism and honest, no-BS approach. What I appreciated most was their transparency—there were no hidden fees or vague answers. The project manager was always available to answer our questions, even on weekends. When there was a delay on a specific tile we had chosen, they let us know immediately and offered great alternatives. The final result is stunning. Our new bathroom has custom cabinetry, matte black fixtures, and this amazing herringbone tile wall that’s now my favorite part of the house. It’s rare these days to find contractors who are so detail-oriented and respectful of your home. If you’re thinking about a remodel, you won’t regret going with them."

Greg H on May 2025


Avatar for HomeTech Construction & Design

HomeTech Construction & Design

5.00(
37
)

HomeTech Construction & Design

5.00(
37
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

HomeTech specializes in home design and construction. We manage and execute projects such as kitchen remodeling, bathroom remodeling, general construction, outdoor living, green remodeling, roofing, plumbing, electrical and more. Our family of contractors and highly skilled team of professionals do the most for every client, making sure the design matches your taste as well as your budget without sacrificing personal style and satisfaction. You can get the home you've always wanted, and we can help you create it. Established in 2004. HomeTech is a boutique company of highly trained professionals that caters to every style . We are licensed, bonded, and fully insured general contractors. For over a decade we pride ourselves on offering our customers responsive, competent and excellent service. Our customers are the most important part of our business, and we work tirelessly to ensure your complete satisfaction. Our 24/7 customer service team would be glad to answer any questions you have and set up any appointments you'd like to make.

"This was a second time we hired Hometech and Moses’ team. A couple of years ago we remodeled our home in LAH and had a great experience . After we bough our vacation home in Naples, we were glad to find out that Moses is working in the area, as it is difficult to find trusted builder , especially when you aren’t living in the area and doing this project remotely. Our Naples home, overlooking Aqua Cove is in great location, but design was too traditional and dated .  We did complete gut remodel of 4 bed and 4 bathroom house approximately 4500sf, including changing the facade to give it more modern and CA look :) Definitely one of the kind houses in the neighborhood . As always, we were well informed about the progress, done a couple of sites visits during construction and the team was able to accommodate virtual meetings to fit our busy schedules . We can’t wait to spend this winter in nice warm weather enjoying our new home away from home"

Zachary d on June 2023

HomeTech specializes in home design and construction. We manage and execute projects such as kitchen remodeling, bathroom remodeling, general construction, outdoor living, green remodeling, roofing, plumbing, electrical and more. Our family of contractors and highly skilled team of professionals do the most for every client, making sure the design matches your taste as well as your budget without sacrificing personal style and satisfaction. You can get the home you've always wanted, and we can help you create it. Established in 2004. HomeTech is a boutique company of highly trained professionals that caters to every style . We are licensed, bonded, and fully insured general contractors. For over a decade we pride ourselves on offering our customers responsive, competent and excellent service. Our customers are the most important part of our business, and we work tirelessly to ensure your complete satisfaction. Our 24/7 customer service team would be glad to answer any questions you have and set up any appointments you'd like to make.

"This was a second time we hired Hometech and Moses’ team. A couple of years ago we remodeled our home in LAH and had a great experience . After we bough our vacation home in Naples, we were glad to find out that Moses is working in the area, as it is difficult to find trusted builder , especially when you aren’t living in the area and doing this project remotely. Our Naples home, overlooking Aqua Cove is in great location, but design was too traditional and dated .  We did complete gut remodel of 4 bed and 4 bathroom house approximately 4500sf, including changing the facade to give it more modern and CA look :) Definitely one of the kind houses in the neighborhood . As always, we were well informed about the progress, done a couple of sites visits during construction and the team was able to accommodate virtual meetings to fit our busy schedules . We can’t wait to spend this winter in nice warm weather enjoying our new home away from home"

Zachary d on June 2023


Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018


Evolve Construction

5.00(
37
)

Evolve Construction

5.00(
37
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

$8,000 minimum job. Evolve Construction provides services of Home Improvement to the Community of the Bay Area California. A Company You Can Trust - We are getting things DONE. Our services include, for example, a kitchen remodel, a bathroom remodel, various interior upgrades, changes to the layout of the house, room additions, plans and permits, flooring, drywall, electrical upgrades and exterior renovations such as, for example, stucco or sidings replacement, exterior paint, driveway replacement, roofing, new windows and such. Evolve Construction is a full service provider ("Turn-Key Project") which means that all your needs for your Home Renovation are met with us, and can be found under one roof - with Evolve Construction. We are proud to serve you with the best and most skilled construction crews in the Bay Area and guarantee your satisfaction. We will lead your project to a successful finish line, in a fun, efficient way with no unnecessary hassles or unnecessary costs.

$8,000 minimum job. Evolve Construction provides services of Home Improvement to the Community of the Bay Area California. A Company You Can Trust - We are getting things DONE. Our services include, for example, a kitchen remodel, a bathroom remodel, various interior upgrades, changes to the layout of the house, room additions, plans and permits, flooring, drywall, electrical upgrades and exterior renovations such as, for example, stucco or sidings replacement, exterior paint, driveway replacement, roofing, new windows and such. Evolve Construction is a full service provider ("Turn-Key Project") which means that all your needs for your Home Renovation are met with us, and can be found under one roof - with Evolve Construction. We are proud to serve you with the best and most skilled construction crews in the Bay Area and guarantee your satisfaction. We will lead your project to a successful finish line, in a fun, efficient way with no unnecessary hassles or unnecessary costs.

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Home Building questions, answered by experts

Renovating or remodeling an existing structure is usually less expensive than the cost to build a new house. That’s because you can save on the costs of new building materials, laying a foundation, framing the entire building, and installing new materials and utilities throughout the house. However, if a home is in very poor condition or is incredibly old, you could spend more on upgrades and restoration compared to building from scratch.

Prefab kits like a small sunroom for around $20,000 or even a basic gazebo roof for as little as $60 can save you big over professional installation. However, you lose the option for customization, and these structures tend not to last nearly as long. As for bigger projects like a deck or patio, you shouldn’t go with the DIY route unless you’re fully prepped with the tools and know-how to get it done right. Mistakes can be frustrating and costly, so choose a pro if you’re looking to eliminate your risk of error.

In most states, you can build an in-law suite on your property as long as you follow local building codes. However, it's important that you have enough space on your property to accommodate the new structure. A functional in-law suite in your backyard will require between 300 and 800 square feet of space.

Building permits serve a few purposes, the most important of which is to keep you and the people around you safe by ensuring your contractor does work safely and to code. Permits also help your municipality tax your property appropriately, as taxes are based on land improvements and the upgrades you make to your home. Finally, permits ensure your project won’t have a negative impact on the environment or your neighbors.

The number of rooms a guest house should have really depends on your needs. A small guest house might only need one bedroom, a bathroom, a living room, and a kitchen. Larger units may have multiple bedrooms and bathrooms. Your local building codes may limit the number of rooms or square footage you can have in a guest house.

The Castro Valley, CA homeowners’ guide to home building services

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