Is it worth it to add a second story?

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.

Is it better to build up or out?

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.

How can my home’s foundation be reinforced to support a second story?

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.

Top-Rated Second Story Addition Building Services Experts in Canyon, CA

Cal Green Remodeling

1400 Coleman Ave, Unit F14-2

5.00(

14

)

•Approved Pro

Cal Green Remodeling

1400 Coleman Ave, Unit F14-2

5.00(

14

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

737 local quotes requested

Welcome to Cal Green Remodeling. We do our best to take the stress out of home remodeling, working directly with our clients to make sure they understand the process, options available, and budget. Our goal is to make your project everything you dreamt it would be. From custom kitchens to concrete floors we do it all and our experienced professionals can help you figure out what products are right for you. We offer industrial grade finishes that can handle excessive traffic, as well as fine finishes for your home. Contact us today for a free estimate, we look forward to hearing from you. Website - https://calgreenremodeling.com/ Phone - 800-803-9927

"We were looking to remodel our kitchen or bath for a few years. We kept getting estimates from different companies and always felt the price was off or the person was not a good fit. Then, finally, we met Shai with Cal Green Remodeling. What a great guy! He is very upfront and honest about what we can expect in terms of cost and work flow. Because of his honest approach, we hired him. We felt he gave us the good and bad and how to resolve the bad as well. In the end, the process was fairly smooth, and the few hick-ups we had, for example, the city and their permit process, were well explained to us at the beginning, so we were ready. Our kitchen or bath looks amazing, and I plan to work with Cal Green Remodeling again. Thanks Shai!"

Albert R on December 2023

Welcome to Cal Green Remodeling. We do our best to take the stress out of home remodeling, working directly with our clients to make sure they understand the process, options available, and budget. Our goal is to make your project everything you dreamt it would be. From custom kitchens to concrete floors we do it all and our experienced professionals can help you figure out what products are right for you. We offer industrial grade finishes that can handle excessive traffic, as well as fine finishes for your home. Contact us today for a free estimate, we look forward to hearing from you. Website - https://calgreenremodeling.com/ Phone - 800-803-9927

"We were looking to remodel our kitchen or bath for a few years. We kept getting estimates from different companies and always felt the price was off or the person was not a good fit. Then, finally, we met Shai with Cal Green Remodeling. What a great guy! He is very upfront and honest about what we can expect in terms of cost and work flow. Because of his honest approach, we hired him. We felt he gave us the good and bad and how to resolve the bad as well. In the end, the process was fairly smooth, and the few hick-ups we had, for example, the city and their permit process, were well explained to us at the beginning, so we were ready. Our kitchen or bath looks amazing, and I plan to work with Cal Green Remodeling again. Thanks Shai!"

Albert R on December 2023

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

2100 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

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

1639 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

Plan Perfect Remodeling

Bay Area

5.00(

11

)

•Approved Pro

Plan Perfect Remodeling

Bay Area

5.00(

11

)

•Approved Pro

Customers say: Quick response

579 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

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

1175 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

Kitchen Design Services

2562 Seaboard Avenue

5.00(

11

)

•Approved Pro

Kitchen Design Services

2562 Seaboard Avenue

5.00(

11

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

Recommended by 100% of HomeAdvisor customers

302 local quotes requested

Welcome to Kitchen Design Services! The design team at KDS is dedicated to making your kitchen remodel a great experience. We know that your project isn't just about looks, it's also about smart planning, quality materials, and trusting the right guide to help you pull it all together. Your new kitchen will be the center of your home. You deserve a well-designed space by experts that not only know and enjoy kitchen design, but also believe that good design changes people's lives. We love collaborating with and engaging our clients because their excitement and participation are important to having a rewarding partnership and successful project. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Kitchen Design Services did an outstanding job of designing our new kitchen. Every detail was planned out carefully ahead of time. My KDS designer went with me to many different showrooms to help me pick out tile, countertop slabs, and paint, and coordinate all of the colors. They had a great sense of style and were very knowledgeable about kitchen design. KDS had a great selection of cabinets— I love the DuraSupreme cabinets we got. I received lots of personal attention, never felt rushed, and all of my never-ending questions were answered promptly and thoroughly. It was a real pleasure working with KDS— I highly recommend them! Our kitchen turned out to be absolutely fabulous!"

Daniel W on October 2024

Welcome to Kitchen Design Services! The design team at KDS is dedicated to making your kitchen remodel a great experience. We know that your project isn't just about looks, it's also about smart planning, quality materials, and trusting the right guide to help you pull it all together. Your new kitchen will be the center of your home. You deserve a well-designed space by experts that not only know and enjoy kitchen design, but also believe that good design changes people's lives. We love collaborating with and engaging our clients because their excitement and participation are important to having a rewarding partnership and successful project. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Kitchen Design Services did an outstanding job of designing our new kitchen. Every detail was planned out carefully ahead of time. My KDS designer went with me to many different showrooms to help me pick out tile, countertop slabs, and paint, and coordinate all of the colors. They had a great sense of style and were very knowledgeable about kitchen design. KDS had a great selection of cabinets— I love the DuraSupreme cabinets we got. I received lots of personal attention, never felt rushed, and all of my never-ending questions were answered promptly and thoroughly. It was a real pleasure working with KDS— I highly recommend them! Our kitchen turned out to be absolutely fabulous!"

Daniel W on October 2024

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

1151 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

360 FULL SERVICE CONSTRUCTION

3.67(

3

)

•Approved Pro

360 FULL SERVICE CONSTRUCTION

3.67(

3

)

•Approved Pro

1039 local quotes requested

29 years of experience

360 Full Service Construction delivers exceptional results for residential, commercial, and industrial construction projects. Our skilled team brings innovation, expertise, and attention to detail to every project. We strive to exceed client expectations by delivering projects on time and within budget, regardless of their size and complexity. Contact us to turn your vision into a reality.

"⭐ 1 Star – Unsafe, Unlicensed, and Untrustworthy Contractor I hired Fernando Soto / 360FSC Inc. for an ADU and home extension in Millbrae, and it has been one of the most stressful and costly experiences I’ve ever gone through. From the start, Soto relied on unlicensed workers for critical trades. Electrical work was unsafe and failed inspection — indoor panels were installed outside, wires were left unsecured, and essential safety breakers were missing. Plumbing was just as bad: instead of replacing the pipes as I requested on day one, his crew tied old cast iron, clay, and PVC together, even forcing larger pipes into smaller ones. This caused sewage leaks and backups. Independent inspections later confirmed major issues: Flooring – failed inspection and needs to be completely redone. Foundation – the new extension has already sunk by about 3.5 inches, creating serious structural risks. On top of that, the project stalled for months after May 19th, billing was vague, and Soto even threatened to rip out work I had already paid for. He hides behind a P.O. Box in Belmont instead of a real address, which says a lot about accountability. This contractor cuts corners, uses unlicensed trades, and leaves unsafe work behind. Do not make the mistake I did — avoid Fernando Soto and 360FSC Inc. One more red flag: a glowing “review” on this page was written by Rachel G — who is actually tied to his business. That tells you everything about how much weight to give positive reviews here."

Waifung S on September 2025

360 Full Service Construction delivers exceptional results for residential, commercial, and industrial construction projects. Our skilled team brings innovation, expertise, and attention to detail to every project. We strive to exceed client expectations by delivering projects on time and within budget, regardless of their size and complexity. Contact us to turn your vision into a reality.

"⭐ 1 Star – Unsafe, Unlicensed, and Untrustworthy Contractor I hired Fernando Soto / 360FSC Inc. for an ADU and home extension in Millbrae, and it has been one of the most stressful and costly experiences I’ve ever gone through. From the start, Soto relied on unlicensed workers for critical trades. Electrical work was unsafe and failed inspection — indoor panels were installed outside, wires were left unsecured, and essential safety breakers were missing. Plumbing was just as bad: instead of replacing the pipes as I requested on day one, his crew tied old cast iron, clay, and PVC together, even forcing larger pipes into smaller ones. This caused sewage leaks and backups. Independent inspections later confirmed major issues: Flooring – failed inspection and needs to be completely redone. Foundation – the new extension has already sunk by about 3.5 inches, creating serious structural risks. On top of that, the project stalled for months after May 19th, billing was vague, and Soto even threatened to rip out work I had already paid for. He hides behind a P.O. Box in Belmont instead of a real address, which says a lot about accountability. This contractor cuts corners, uses unlicensed trades, and leaves unsafe work behind. Do not make the mistake I did — avoid Fernando Soto and 360FSC Inc. One more red flag: a glowing “review” on this page was written by Rachel G — who is actually tied to his business. That tells you everything about how much weight to give positive reviews here."

Waifung S on September 2025

PR CONSTRUCTION GROUP

New on HomeAdvisorNew on HomeAdvisor

•Approved Pro

PR CONSTRUCTION GROUP

New on HomeAdvisorNew on HomeAdvisor

•Approved Pro

1 years of experience

Free onsite estimate

We specialize in interior remodels, cabinetry, painting, flooring. We do everything with quality and at a great price.

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

3316 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

Get matched with top second story addition builders in Canyon, CA

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Cal Green Remodeling

Cal Green Remodeling

Tech Line Construction Inc.

Tech Line Construction Inc.

Geico Builders

Geico Builders

Plan Perfect Remodeling

Plan Perfect Remodeling

Zacarias Remodeling Construction

Zacarias Remodeling Construction

Kitchen Design Services

Kitchen Design Services

S&L REMODELING AND DESIGN INC

S&L REMODELING AND DESIGN INC

360 FULL SERVICE CONSTRUCTION

360 FULL SERVICE CONSTRUCTION

PR CONSTRUCTION GROUP

PR CONSTRUCTION GROUP

America's Dream HomeWorks

America's Dream HomeWorks

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

How Much Does a Bus Conversion Cost in 2025?

DIY Kitchen Remodel

Build a Dining Room

Build a Secret Room

Build an A-Frame House

Build a Bar

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Get matched with top second story addition builders in Canyon, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Find Second story addition builders in Canyon

Cal Green Remodeling

Cal Green Remodeling

Tech Line Construction Inc.

Tech Line Construction Inc.

Geico Builders

Geico Builders

Plan Perfect Remodeling

Plan Perfect Remodeling

Zacarias Remodeling Construction

Zacarias Remodeling Construction

Kitchen Design Services

Kitchen Design Services

S&L REMODELING AND DESIGN INC

S&L REMODELING AND DESIGN INC

360 FULL SERVICE CONSTRUCTION

360 FULL SERVICE CONSTRUCTION

PR CONSTRUCTION GROUP

PR CONSTRUCTION GROUP

America's Dream HomeWorks

America's Dream HomeWorks

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

How Much Does a Bus Conversion Cost in 2025?

DIY Kitchen Remodel

Build a Dining Room

Build a Secret Room

Build an A-Frame House

Build a Bar

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