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Find Second story addition builders in Clayton

JCC Residential Remodeling & Maintenance

2318 106th Ave
5.00(
2
)
Approved Pro

JCC Residential Remodeling & Maintenance

2318 106th Ave
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3249 local quotes requested

We offer everything from residential repairs to full kitchen and bathroom remodeling! We pride ourselves on our over twenty years of experience and offer 100% satisfaction. Contact us for free quotes!

"Excellent! I thought I needed a new thermostat since I wasn’t getting any heat. Juan came over , checked the circuit breaker and found that the breaker was worn out. He replaced the breaker and found that the thermostat was still functioning. He could have said that the thermostat needed replacing too but instead he just said you needed a new circuit breaker. I really appreciated the honesty. If he said I needed the thermostat too I would have paid for both thus increasing my bill. I just want to add a few more comments about the work that he’s done for me. I first met Juan when he came over to my house to stabilize a lose tile that was above my garage door. Then I showed him mold growing next to my shower door. He found a small crack that allowed water to seep into the sheet rock. He replaced the shower door and the sheet rock that was growing mold. Then I took him to the bathroom where I showed him a bulging floor board next to the toilet. He found a small crack in the toilet tank that slowly dripped water on to the backside of toilet dripping water onto the base board. He offered to repair the tank but I told him to go ahead and replace the toilet. I can’t say enough about Juan. Whatever the problem is he’ll figure out how to fix it. When he approaches a problem he approaches with a positive attitude. Another time my ceiling fan went out and I asked him to come out to see what the problem was. Instead over the phone he told me to check the remote control. I went on Amazon and ordered a new remote control . I placed in new batteries and the fan started working. He didn’t charge me anything for the advice. I was prepared to buy a new fan and all I needed was a new remote. Juan is multi talented. I’ve recommend him to my neighbor and he’s done a couple of projects for her (leaking roof). Lastly, in a couple of weeks he’s coming over to paint my front door and put a new latch on my side gate. I’m 77 years with an injured leg so fixing things around the house is difficult for me. Juan has made my life easier."

Calvin C on February 2025

We offer everything from residential repairs to full kitchen and bathroom remodeling! We pride ourselves on our over twenty years of experience and offer 100% satisfaction. Contact us for free quotes!

"Excellent! I thought I needed a new thermostat since I wasn’t getting any heat. Juan came over , checked the circuit breaker and found that the breaker was worn out. He replaced the breaker and found that the thermostat was still functioning. He could have said that the thermostat needed replacing too but instead he just said you needed a new circuit breaker. I really appreciated the honesty. If he said I needed the thermostat too I would have paid for both thus increasing my bill. I just want to add a few more comments about the work that he’s done for me. I first met Juan when he came over to my house to stabilize a lose tile that was above my garage door. Then I showed him mold growing next to my shower door. He found a small crack that allowed water to seep into the sheet rock. He replaced the shower door and the sheet rock that was growing mold. Then I took him to the bathroom where I showed him a bulging floor board next to the toilet. He found a small crack in the toilet tank that slowly dripped water on to the backside of toilet dripping water onto the base board. He offered to repair the tank but I told him to go ahead and replace the toilet. I can’t say enough about Juan. Whatever the problem is he’ll figure out how to fix it. When he approaches a problem he approaches with a positive attitude. Another time my ceiling fan went out and I asked him to come out to see what the problem was. Instead over the phone he told me to check the remote control. I went on Amazon and ordered a new remote control . I placed in new batteries and the fan started working. He didn’t charge me anything for the advice. I was prepared to buy a new fan and all I needed was a new remote. Juan is multi talented. I’ve recommend him to my neighbor and he’s done a couple of projects for her (leaking roof). Lastly, in a couple of weeks he’s coming over to paint my front door and put a new latch on my side gate. I’m 77 years with an injured leg so fixing things around the house is difficult for me. Juan has made my life easier."

Calvin C on February 2025


Avatar for Plan Perfect Remodeling

Plan Perfect Remodeling

Bay Area
5.00(
11
)
Approved Pro

Plan Perfect Remodeling

Bay Area
5.00(
11
)
Approved Pro
Customers say: Quick response
583 local quotes requested
3 years of experience

At Plan Perfect Remodeling, WE SPECIALIZE IN KITCHEN AND BATH REMODELS but our expertise extends to all aspects of home renovation. Whether you're considering a full home makeover or simply want to refresh specific areas, we're here to bring your vision to life. Not sure where to start? Schedule a complimentary, in-home design consultation with us. Consultation includes 3-D design presentation. Our team will provide expert guidance and tailored recommendations to help you make the most of your space. Let's work together to create a home that reflects your style and exceeds your expectations.

"Fantastic team of honest workers. They took care of every problem and logistics in a professional and timely manner. Extremely happy with the final product, would absolutely refer."

Dominic E on April 2024

At Plan Perfect Remodeling, WE SPECIALIZE IN KITCHEN AND BATH REMODELS but our expertise extends to all aspects of home renovation. Whether you're considering a full home makeover or simply want to refresh specific areas, we're here to bring your vision to life. Not sure where to start? Schedule a complimentary, in-home design consultation with us. Consultation includes 3-D design presentation. Our team will provide expert guidance and tailored recommendations to help you make the most of your space. Let's work together to create a home that reflects your style and exceeds your expectations.

"Fantastic team of honest workers. They took care of every problem and logistics in a professional and timely manner. Extremely happy with the final product, would absolutely refer."

Dominic E on April 2024


Avatar for America's Dream HomeWorks

America's Dream HomeWorks

7115 Watt Ave
4.09(
172
)
Approved Pro

America's Dream HomeWorks

7115 Watt Ave
4.09(
172
)
Approved Pro
Customers say: Quality work
3335 local quotes requested
24 years of experience

America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996

"They didn't do what they said that they're gonna do. The paint job was spotty and it was unfinished cabinet work. I tried to call them to let know and they never even know who I am."

LeslieAnn G on August 2021

America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996

"They didn't do what they said that they're gonna do. The paint job was spotty and it was unfinished cabinet work. I tried to call them to let know and they never even know who I am."

LeslieAnn G on August 2021


Avatar for Geico Builders

Geico Builders

1901 Harrison Street
5.00(
27
)
Approved Pro

Geico Builders

1901 Harrison Street
5.00(
27
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1600 local quotes requested

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"Excellent job! We contacted Geico Builders to renovate our Kitchen and two bathrooms - basically complete home remodel. The initial meeting was with Diane our project manager who upon meeting, felt like she was a great fit. She's very personable, straight forward, responsive, and always looked out in our best interest throughout the project. I can't say enough good things about her and Geico. The attention to detail is precise. They gave us the timeline for completing and kept me updated throughout the process. We're very happy with the work they have done and would not hesitate to go through Geico if we ever decide to have another remodel. We just love our new remodel bathrooms and kitchen."

Traci H on October 2025

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"Excellent job! We contacted Geico Builders to renovate our Kitchen and two bathrooms - basically complete home remodel. The initial meeting was with Diane our project manager who upon meeting, felt like she was a great fit. She's very personable, straight forward, responsive, and always looked out in our best interest throughout the project. I can't say enough good things about her and Geico. The attention to detail is precise. They gave us the timeline for completing and kept me updated throughout the process. We're very happy with the work they have done and would not hesitate to go through Geico if we ever decide to have another remodel. We just love our new remodel bathrooms and kitchen."

Traci H on October 2025


Avatar for Zacarias Remodeling Construction

Zacarias Remodeling Construction

1320 Paso De Sauce RD
5.00(
28
)
Approved Pro

Zacarias Remodeling Construction

1320 Paso De Sauce RD
5.00(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1177 local quotes requested

We are a locally owned and operated company since 2009, with lots of industry experience. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other Home Improvement projects. 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 are a bilingual company, and are happy to serve both our English and Spanish Speaking communities! ¡Hablamos Espanol!

"Oscar truly stands out as a contractor who cares deeply about his clients, and that’s exactly how he made me feel. I reached out to five different contractors to assess my bathroom and offer ideas, but my experiences varied significantly. Some were overly sales-driven, others dismissed my ideas entirely, and one didn’t even follow up with an estimate. Oscar, however, was a breath of fresh air. He arrived on time, listened attentively to my ideas, and offered thoughtful suggestions. He was highly collaborative with the other workers on site, making sure everything was well coordinated. Oscar's expertise in the industry is evident, and he’s exceptionally creative when it comes to problem-solving. When he identified additional challenges during the project, he took the time to offer practical solutions, demonstrating his commitment to delivering the best result. Oscar has earned my trust and will be my go-to contractor for any future projects. I highly recommend him to anyone in need of a reliable, skilled, and dedicated professional"

Lisa N on March 2025

We are a locally owned and operated company since 2009, with lots of industry experience. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other Home Improvement projects. 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 are a bilingual company, and are happy to serve both our English and Spanish Speaking communities! ¡Hablamos Espanol!

"Oscar truly stands out as a contractor who cares deeply about his clients, and that’s exactly how he made me feel. I reached out to five different contractors to assess my bathroom and offer ideas, but my experiences varied significantly. Some were overly sales-driven, others dismissed my ideas entirely, and one didn’t even follow up with an estimate. Oscar, however, was a breath of fresh air. He arrived on time, listened attentively to my ideas, and offered thoughtful suggestions. He was highly collaborative with the other workers on site, making sure everything was well coordinated. Oscar's expertise in the industry is evident, and he’s exceptionally creative when it comes to problem-solving. When he identified additional challenges during the project, he took the time to offer practical solutions, demonstrating his commitment to delivering the best result. Oscar has earned my trust and will be my go-to contractor for any future projects. I highly recommend him to anyone in need of a reliable, skilled, and dedicated professional"

Lisa N on March 2025


Avatar for Hillcrest Landscaping

Hillcrest Landscaping

4655 Barham Ave
4.56(
9
)
Approved Pro

Hillcrest Landscaping

4655 Barham Ave
4.56(
9
)
Approved Pro
Customers say: Quality work
753 local quotes requested
15 years of experience

If you're looking for a company that provides premium products, outstanding service, and beautiful outcomes, then look no further than Hillcrest Landscaping and Construction! We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work.

"Saul poured a sidewalk and while the concrete work is good they left it unfinished. I have two holes now that need to be closed and cannot reach Saul, the owner. I also hired him to repair existing sprinklers and he left it unfinished. I paid him for services with the understanding that he would come after the weekend to finish the job and he hasn't been back. That was a month ago. Or close to it. I've called and texted him. He says he will come then doesn't. Never calls to explain why. Or when he'll be back."

Wanda S on October 2025

If you're looking for a company that provides premium products, outstanding service, and beautiful outcomes, then look no further than Hillcrest Landscaping and Construction! We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work.

"Saul poured a sidewalk and while the concrete work is good they left it unfinished. I have two holes now that need to be closed and cannot reach Saul, the owner. I also hired him to repair existing sprinklers and he left it unfinished. I paid him for services with the understanding that he would come after the weekend to finish the job and he hasn't been back. That was a month ago. Or close to it. I've called and texted him. He says he will come then doesn't. Never calls to explain why. Or when he'll be back."

Wanda S on October 2025


Avatar for LB Construction & Remodeling

LB Construction & Remodeling

950 Tower Ln
5.00(
7
)
Approved Pro

LB Construction & Remodeling

950 Tower Ln
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1324 local quotes requested

With over 20yrs of professional remodeling experience, we believe that customer satisfaction is the only way to succeed and grow in the remodeling industry! We offer a 100% satisfaction guarantee on all projects from building to designing you can always count on us. Our main focus is residential projects, major home remodeling and additions. We are here to help everyone in the bay area, complete any remodeling project needed at top quality and a satisfactory price! Please take a look at our website and contact us today for all of your remodeling needs! We look forward to serving you!

"My partner and I have had the pleasure of working with Dan, David and the hardworking crew at LB Construction & Remodeling for our what is now an extensive home restoration and renovation project. I cannot express how thrilled I am with the results thus far. From start to finish, their team demonstrated an unparalleled level of knowledge, speed, and attentiveness that truly exceeded my expectations. Truthfully, I didn’t know where to begin with my project, so I was very happy when Angi.com recommended LB. Dan responded quickly and was able to meet me at the house and walk the entire site with me. I had recently purchased my house and it needed extensive repair from years of water damage, including repair and replacement of the wood framing, installation of proper drainage, and foundation work. What truly set Dan and team at LB Construction & Remodeling apart was their willingness to help me hash out the details and various plans for our projects. Dan and David patiently worked with me to explore different options, providing valuable insights and recommendations based on their extensive experience, such as navigating permitting, advising on order of operation. This collaborative approach made me the decision-making process easier and less stressful as I had never done anything like this before. The speed at which LB Construction & Remodeling worked on my projects was truly impressive. They efficiently managed their time without compromising on the quality of their work. Every step of the way, it was evident that they were dedicated to completing the project promptly, ensuring minimal disruption to my daily life. Not to mention their attention to detail and commitment to quality craftsmanship were evident in every aspect of the projects, particularly with the reframing and painting. One of the standout qualities of LB Construction & Remodeling is their exceptional attentiveness. Dan consistently paid close attention to my needs and concerns, making me feel valued as a client. An example of this was when I communicated how I wanted the trim around the windows to look, both inside and out. I sent Dan pictures to illustrate what I was expecting, and he listened to me, verified specifics of my ideas, and walked me through how they would be able to achieve the look easily. Their work was seamless and they captured my vision perfectly. Right from the get-go we felt a sense of trust with Dan and team and that really helped make this entire process enjoyable. I wholeheartedly recommend LB Construction and Remodeling to anyone seeking a trustworthy and skilled team for their home improvement needs. I am eager to continue our other home projects with LB Construction & Remodeling in 2024."

Laura C on January 2024

With over 20yrs of professional remodeling experience, we believe that customer satisfaction is the only way to succeed and grow in the remodeling industry! We offer a 100% satisfaction guarantee on all projects from building to designing you can always count on us. Our main focus is residential projects, major home remodeling and additions. We are here to help everyone in the bay area, complete any remodeling project needed at top quality and a satisfactory price! Please take a look at our website and contact us today for all of your remodeling needs! We look forward to serving you!

"My partner and I have had the pleasure of working with Dan, David and the hardworking crew at LB Construction & Remodeling for our what is now an extensive home restoration and renovation project. I cannot express how thrilled I am with the results thus far. From start to finish, their team demonstrated an unparalleled level of knowledge, speed, and attentiveness that truly exceeded my expectations. Truthfully, I didn’t know where to begin with my project, so I was very happy when Angi.com recommended LB. Dan responded quickly and was able to meet me at the house and walk the entire site with me. I had recently purchased my house and it needed extensive repair from years of water damage, including repair and replacement of the wood framing, installation of proper drainage, and foundation work. What truly set Dan and team at LB Construction & Remodeling apart was their willingness to help me hash out the details and various plans for our projects. Dan and David patiently worked with me to explore different options, providing valuable insights and recommendations based on their extensive experience, such as navigating permitting, advising on order of operation. This collaborative approach made me the decision-making process easier and less stressful as I had never done anything like this before. The speed at which LB Construction & Remodeling worked on my projects was truly impressive. They efficiently managed their time without compromising on the quality of their work. Every step of the way, it was evident that they were dedicated to completing the project promptly, ensuring minimal disruption to my daily life. Not to mention their attention to detail and commitment to quality craftsmanship were evident in every aspect of the projects, particularly with the reframing and painting. One of the standout qualities of LB Construction & Remodeling is their exceptional attentiveness. Dan consistently paid close attention to my needs and concerns, making me feel valued as a client. An example of this was when I communicated how I wanted the trim around the windows to look, both inside and out. I sent Dan pictures to illustrate what I was expecting, and he listened to me, verified specifics of my ideas, and walked me through how they would be able to achieve the look easily. Their work was seamless and they captured my vision perfectly. Right from the get-go we felt a sense of trust with Dan and team and that really helped make this entire process enjoyable. I wholeheartedly recommend LB Construction and Remodeling to anyone seeking a trustworthy and skilled team for their home improvement needs. I am eager to continue our other home projects with LB Construction & Remodeling in 2024."

Laura C on January 2024


Avatar for Tech Line Construction Inc.

Tech Line Construction Inc.

6114 La Salle Avenue
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Tech Line Construction Inc.

6114 La Salle Avenue
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2085 local quotes requested
5 years of experience

Welcome to Tech Line Construction, your trusted partner in enhancing your home and transforming your wishes into visual and solid realities. With over a decade of unwavering dedication and a commitment to excellence, we have proudly served our clients in delivering top-tier construction solutions. We specialize in providing top-notch services for residential and commercial projects. Our commitment to professionalism, quality, and meticulous attention to detail sets us apart from our competitors. Choose Tech Line Construction for your next construction project and experience the highest level of service and craftsmanship. Bay Area General B Contractor Jose Rodriguez ( General Building contractor ) (510)798-5869 Office@techlineconstruction.info Tech Line Construction inc TechLineconstructiondesign.com CSLB # LIC 1094361 Commercial liability &Worker comp. Insured & bonded

Welcome to Tech Line Construction, your trusted partner in enhancing your home and transforming your wishes into visual and solid realities. With over a decade of unwavering dedication and a commitment to excellence, we have proudly served our clients in delivering top-tier construction solutions. We specialize in providing top-notch services for residential and commercial projects. Our commitment to professionalism, quality, and meticulous attention to detail sets us apart from our competitors. Choose Tech Line Construction for your next construction project and experience the highest level of service and craftsmanship. Bay Area General B Contractor Jose Rodriguez ( General Building contractor ) (510)798-5869 Office@techlineconstruction.info Tech Line Construction inc TechLineconstructiondesign.com CSLB # LIC 1094361 Commercial liability &Worker comp. Insured & bonded


Avatar for S&L REMODELING AND DESIGN INC

S&L REMODELING AND DESIGN INC

1270 Springbrook Rd
4.84(
37
)
Approved Pro

S&L REMODELING AND DESIGN INC

1270 Springbrook Rd
4.84(
37
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1135 local quotes requested

S&L Remodeling and Design are committed to providing honest, professional services and sincerely understanding your needs. We provide a clean and safe job site every day and make sure that the project gets done right the first time. Our team is always staying on top of the latest trends as well as training and expanding our knowledge regarding the newest construction and design solutions available, including the use of cutting-edge technology. We are ready for whatever project you throw our way.

"Did a remodeling with S&L, they've done a great job. Team is responsible and project deadline was on time. Daniel was great to work with! Highly recommended"

David D on May 2023

S&L Remodeling and Design are committed to providing honest, professional services and sincerely understanding your needs. We provide a clean and safe job site every day and make sure that the project gets done right the first time. Our team is always staying on top of the latest trends as well as training and expanding our knowledge regarding the newest construction and design solutions available, including the use of cutting-edge technology. We are ready for whatever project you throw our way.

"Did a remodeling with S&L, they've done a great job. Team is responsible and project deadline was on time. Daniel was great to work with! Highly recommended"

David D on May 2023


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
1541 local quotes requested

Don't wait to create your dream home! ✨ Our new financing options make your remodel projects affordable NOW. 💰 Limited-time rates available—click the link to get started! ➡️https://www.enhancify.com/bear-remodeling-inc **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 $10 K 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

Don't wait to create your dream home! ✨ Our new financing options make your remodel projects affordable NOW. 💰 Limited-time rates available—click the link to get started! ➡️https://www.enhancify.com/bear-remodeling-inc **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 $10 K 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

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FAQs for second story addition building service projects in Clayton, CA

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Clayton, CA homeowners’ guide to second story addition building services

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

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