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Addition to existing structure builders in Mountain-house

C W Adams Construction, Inc.
1489 College Ave
5.00(
4
)
Approved Pro
C W Adams Construction, Inc.
1489 College Ave
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

C W Adams Construction 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

"Clifford went above and beyond to meet my expectations for my dream bathroom! The work was completed on time and I was kept informed on how the projects were progressing. Next time I have the budget for more renovations, I will be calling Cliff."

Olivia J on June 2023

C W Adams Construction 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

"Clifford went above and beyond to meet my expectations for my dream bathroom! The work was completed on time and I was kept informed on how the projects were progressing. Next time I have the budget for more renovations, I will be calling Cliff."

Olivia J on June 2023


Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
Customers say: True professional
231 local quotes requested
8 years of experience

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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 2025


Avatar for SAN & ZOE GENERAL CONTRACTOR INC
SAN & ZOE GENERAL CONTRACTOR INC
1317 PALMERA AVE
New on HomeAdvisorNew on Angi
Approved Pro
SAN & ZOE GENERAL CONTRACTOR INC
1317 PALMERA AVE
New on AngiNew on HomeAdvisor
Approved Pro
10 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!


ABC Construction
847 Malibu Dr
5.00(
1
)
Approved Pro
ABC Construction
847 Malibu Dr
5.00(
1
)
Approved Pro
22 years of experience
Free onsite estimate

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"I hired this contractor for a major plumbing job, including fixing a slab leak, concrete replacement, and installing new hot and cold water piping. The work was completed promptly and with excellent results. The contractor's professionalism, engineering background, and clear communication were truly impressive. Highly recommended!"

Sergey G on February 2025

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"I hired this contractor for a major plumbing job, including fixing a slab leak, concrete replacement, and installing new hot and cold water piping. The work was completed promptly and with excellent results. The contractor's professionalism, engineering background, and clear communication were truly impressive. Highly recommended!"

Sergey G on February 2025


RSF Construction Inc.
6910 Monte Verde Drive
New on HomeAdvisorNew on Angi
Approved Pro
RSF Construction Inc.
6910 Monte Verde Drive
New on AngiNew on HomeAdvisor
Approved Pro
220 local quotes requested
6 years of experience

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 Prosper Construction Development, Inc.
Prosper Construction Development, Inc.
180 Steuart St., Box 194631
4.88(
38
)
Approved Pro
Prosper Construction Development, Inc.
180 Steuart St., Box 194631
4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
231 local quotes requested

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. 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 look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. 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 look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025


Avatar for Stanislaus Construction Inc
Stanislaus Construction Inc
PO Box 962
5.00(
4
)
Approved Pro
Stanislaus Construction Inc
PO Box 962
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
856 local quotes requested

We are proud to be the Central Valley's preferred provider of kitchen, bathroom and whole -home remodeling services since 2013. 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!

"Stanislaus Construction did an amazing job. The work was performed flawlessly and the crews cleaned up at the end of each day. I had a very nice experience with Roger and his team. Everyone was polite, very respectful, very attentive and was very professional. They went above and beyond what was expected. I will be contacting Stanislaus Construction for my next project. Thank you Roger and team!"

Clayton O on April 2025

We are proud to be the Central Valley's preferred provider of kitchen, bathroom and whole -home remodeling services since 2013. 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!

"Stanislaus Construction did an amazing job. The work was performed flawlessly and the crews cleaned up at the end of each day. I had a very nice experience with Roger and his team. Everyone was polite, very respectful, very attentive and was very professional. They went above and beyond what was expected. I will be contacting Stanislaus Construction for my next project. Thank you Roger and team!"

Clayton O on April 2025


Avatar for BEAR Remodeling Inc.
BEAR Remodeling Inc.
2678 N Main St
4.90(
10
)
Approved Pro
BEAR Remodeling Inc.
2678 N Main St
4.90(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1742 local quotes requested

**Due to our current installation schedule we have a project minimum* depending on the job size- ask for details as it varies depending on project size- starting at 5K* Please call today to schedule a complimentary consultation 925-567-3021 BEAR Remodeling, Inc. is a family-owned business and a full-service General Contractor that specializes in residential home remodeling projects. Our services include bathroom remodeling, kitchen remodeling, room additions, garage conversions, and ADU'S With full licensing, bonding, and insurance, it ensures a reliable and trustworthy experience for its clients. Our team of experienced professionals, which includes both engineers and designers, collaborate in order to deliver exceptional results, consistently exceeding client expectations and transforming homes into stunning spaces. (we do not work with modular/trailer homes or offer handyman services.)

"Working with BEAR Remodeling on our ADU garage conversion has been a great experience! The 3D design has really helped us see the project before work began. The team has stayed organized, finished on time, and delivered exactly what we had imagined. Everything has turned out clean, modern, and built to last. We have happily recommended BEAR Remodeling to anyone looking for reliable remodeling services!"

Ryker H on May 2025

**Due to our current installation schedule we have a project minimum* depending on the job size- ask for details as it varies depending on project size- starting at 5K* Please call today to schedule a complimentary consultation 925-567-3021 BEAR Remodeling, Inc. is a family-owned business and a full-service General Contractor that specializes in residential home remodeling projects. Our services include bathroom remodeling, kitchen remodeling, room additions, garage conversions, and ADU'S With full licensing, bonding, and insurance, it ensures a reliable and trustworthy experience for its clients. Our team of experienced professionals, which includes both engineers and designers, collaborate in order to deliver exceptional results, consistently exceeding client expectations and transforming homes into stunning spaces. (we do not work with modular/trailer homes or offer handyman services.)

"Working with BEAR Remodeling on our ADU garage conversion has been a great experience! The 3D design has really helped us see the project before work began. The team has stayed organized, finished on time, and delivered exactly what we had imagined. Everything has turned out clean, modern, and built to last. We have happily recommended BEAR Remodeling to anyone looking for reliable remodeling services!"

Ryker H on May 2025


Avatar for Perennial Builders
Perennial Builders
New on HomeAdvisorNew on Angi
Approved Pro
Perennial Builders
New on AngiNew on HomeAdvisor
Approved Pro
81 local quotes requested
33 years of experience

When you want the best custom and personal service available for top tier quality and workmanship, call us now!

When you want the best custom and personal service available for top tier quality and workmanship, call us now!


Avatar for Shaun Caulkins Construction
Shaun Caulkins Construction
600 West Keyes Road
5.00(
3
)
Approved Pro
Shaun Caulkins Construction
600 West Keyes Road
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
439 local quotes requested

Design Build Company specializing in custom homes, remodel of kitchen and bathrooms etc. customers save money when the contractor is also the designer of the plans. With 24 yrs of design experience and 19 years of Construction experience. this combination of experience minimizes questions back and forth between contractor and designer during construction to allow faster completion. Licensed contractor #932818.

"Shaun made the process of my kitchen repair very easy during a time that was pretty stressful for my family. We had a sink leak and needed to repair parts of the kitchen with water damage. As a result we were working with an insurance adjustor which can be stressful for any contractor. Shaun was a professional and really helped in communicating with the adjustor. He also finished the work multiple days early which was much appreciated since we were in a hotel during repairs. It allowed us to focus on the next stage of our repairs the painting and move ahead of schedule. He also repaired a cabinet that was previously broken and not part of our project without me even asking. I really appreciated his kindness in doing this."

Julie T on January 2025

Design Build Company specializing in custom homes, remodel of kitchen and bathrooms etc. customers save money when the contractor is also the designer of the plans. With 24 yrs of design experience and 19 years of Construction experience. this combination of experience minimizes questions back and forth between contractor and designer during construction to allow faster completion. Licensed contractor #932818.

"Shaun made the process of my kitchen repair very easy during a time that was pretty stressful for my family. We had a sink leak and needed to repair parts of the kitchen with water damage. As a result we were working with an insurance adjustor which can be stressful for any contractor. Shaun was a professional and really helped in communicating with the adjustor. He also finished the work multiple days early which was much appreciated since we were in a hotel during repairs. It allowed us to focus on the next stage of our repairs the painting and move ahead of schedule. He also repaired a cabinet that was previously broken and not part of our project without me even asking. I really appreciated his kindness in doing this."

Julie T on January 2025

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FAQs for addition to existing structure building service projects in Mountain-house, CA

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

An in-law suite is a self-contained living space attached to—or detached from—your main home. Expect a bedroom, full bath, and a kitchenette or compact living area. The setup gives relatives privacy, doubles as a potential rental, and can lift your property value. To qualify as a legal dwelling, the suite must meet local building codes and zoning rules.

The Mountain-house, CA homeowners’ guide to addition to existing structure building services
From average costs to expert advice, get all the answers you need to get your job done.
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