Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Addition to existing structure builders in Placentia

Avatar for Socal Express Restoration and Construction Inc.
Socal Express Restoration and Construction Inc.
6860 Canby Avenue, Suite 114
New on HomeAdvisorNew on Angi
Approved Pro
Socal Express Restoration and Construction Inc.
6860 Canby Avenue, Suite 114
New on AngiNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. Call us today for your free estimate. You’ll be pleased you did. Thank you

We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. Call us today for your free estimate. You’ll be pleased you did. Thank you


Avatar for La Cima Construction Inc
La Cima Construction Inc
17560 Brown Street
New on HomeAdvisorNew on Angi
Approved Pro
La Cima Construction Inc
17560 Brown Street
New on AngiNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

We take great pride in our over 30 years experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our over 30 years experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Avatar for Embee & Associates, Inc.
Embee & Associates, Inc.
8010 Haven Avenue
4.50(
4
)
Approved Pro
Embee & Associates, Inc.
8010 Haven Avenue
4.50(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

Here at Embee & Associates, Inc., we pride ourselves in a job well done. With an eye for detail, we will help your dreams become realities so please contact us today for a fast and friendly service that you will not be disappointed in!!

"Overall my experience with this company was great! The work that was done was really really good! Our contractor who assisted us was Jose. We added a living space and master bedroom to our home. The additions done look as if they were part of my house this whole time. Honestly it looks way better than I expected. The only reason I rated the company a 4.5 was because there was always some kind of miscommunication between our contractor and his workers. Don t get me wrong, things were always resolved, Jose was great at that. But my recommendation to is to make sure communication is #1. That way the customer is not confused or left wondering what will happen next. There was an issue with his floor guy though, he was rude and unprofessional. BUT the reason I am mentioning this is not to put down the company but let you know that we expressed concern for this issue and it was resolved professionally by Jose and it never became an issue again. The quality of work was top notch! His workers were all pretty cool guys and we always felt comfortable of who was coming into our home to do the work. I highly recommend this company for your next big project😊👍🏼"

Victoria V on February 2020

Here at Embee & Associates, Inc., we pride ourselves in a job well done. With an eye for detail, we will help your dreams become realities so please contact us today for a fast and friendly service that you will not be disappointed in!!

"Overall my experience with this company was great! The work that was done was really really good! Our contractor who assisted us was Jose. We added a living space and master bedroom to our home. The additions done look as if they were part of my house this whole time. Honestly it looks way better than I expected. The only reason I rated the company a 4.5 was because there was always some kind of miscommunication between our contractor and his workers. Don t get me wrong, things were always resolved, Jose was great at that. But my recommendation to is to make sure communication is #1. That way the customer is not confused or left wondering what will happen next. There was an issue with his floor guy though, he was rude and unprofessional. BUT the reason I am mentioning this is not to put down the company but let you know that we expressed concern for this issue and it was resolved professionally by Jose and it never became an issue again. The quality of work was top notch! His workers were all pretty cool guys and we always felt comfortable of who was coming into our home to do the work. I highly recommend this company for your next big project😊👍🏼"

Victoria V on February 2020


Avatar for American Home Improvement, Inc.
American Home Improvement, Inc.
20335 Ventura Boulevard, Suite 422
4.54(
155
)
Approved Pro
American Home Improvement, Inc.
20335 Ventura Boulevard, Suite 422
4.54(
155
)
Approved Pro
Customers say: Quality work
247 local quotes requested
21 years of experience

At American Home Improvement, Inc. it is our mission to provide the highest quality of service in all aspects of our business. We are extremely thorough in services that we provide and aim to be very receptive to any client's issues, questions or concerns and handle them promptly and professionally. We take necessary steps to ensure that our clients are completely satisfied with all of our contractual and assumed responsibilities. Above all else, we will fulfill these responsibilities while maintaining the highest ethical standards in both of our work and our character.

"American Home Improvement Inc did a great job on our bathroom remodel. The project took about 4.5 weeks and cost just under $35,000. Shawn, our project manager, was professional, easy to talk to, and always kept us in the loop. The crew worked clean and showed real care in their work. Everything turned out neat, modern, and solid. They showed up on time, finished strong, and left the space spotless. I definitely recommend them for anyone looking to remodel their bathroom with a reliable, friendly team."

Gloria B on May 2025

At American Home Improvement, Inc. it is our mission to provide the highest quality of service in all aspects of our business. We are extremely thorough in services that we provide and aim to be very receptive to any client's issues, questions or concerns and handle them promptly and professionally. We take necessary steps to ensure that our clients are completely satisfied with all of our contractual and assumed responsibilities. Above all else, we will fulfill these responsibilities while maintaining the highest ethical standards in both of our work and our character.

"American Home Improvement Inc did a great job on our bathroom remodel. The project took about 4.5 weeks and cost just under $35,000. Shawn, our project manager, was professional, easy to talk to, and always kept us in the loop. The crew worked clean and showed real care in their work. Everything turned out neat, modern, and solid. They showed up on time, finished strong, and left the space spotless. I definitely recommend them for anyone looking to remodel their bathroom with a reliable, friendly team."

Gloria B on May 2025


Avatar for HD Framing Construction
HD Framing Construction
11034 Townley Dr
5.00(
2
)
Approved Pro
HD Framing Construction
11034 Townley Dr
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.

"I highly recommend HD Framing, I am extremely satisfied with their work. Their work ethic is on another level. If youâ re looking to make an addition to your home and increase the value of your property then HD framing is the one. I want to thank the general contractor Henry for staying on top of things and always keeping me up to date on everything. â­ ï¸ â­ ï¸ â­ ï¸ â­ ï¸ â­ ï¸"

Joel J on September 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.

"I highly recommend HD Framing, I am extremely satisfied with their work. Their work ethic is on another level. If youâ re looking to make an addition to your home and increase the value of your property then HD framing is the one. I want to thank the general contractor Henry for staying on top of things and always keeping me up to date on everything. â­ ï¸ â­ ï¸ â­ ï¸ â­ ï¸ â­ ï¸"

Joel J on September 2024


Avatar for REBUILT HOMES INC
REBUILT HOMES INC
2201 N LAKEWOOD BLVD, SUITE D643
4.75(
4
)
Approved Pro
REBUILT HOMES INC
2201 N LAKEWOOD BLVD, SUITE D643
4.75(
4
)
Approved Pro
Customers say: Terrific value
6 years of experience
Free onsite estimate

Our mission at Rebuilt is customer first.. construction second. With over 15 years of experience in the residential construction industry, we understand the great responsibility and honor it is to work in your home. We take great pride in our work, and even greater care of our customers.

"I hired ReBuilt for a full-gut interior renovation. From the first call to the final site clean I felt taken care of. The estimate was detailed and clear. The in-house designer, Kaitlin, implemented my ideas and tactfully injected a few of her own to create a beautiful finished design. My Project Manager Ricardo was onsite daily and posted logs on Buildertrend, the companies software system. It was great seeing the updates! He also kept adherence to the 16 week schedule and overcame some minor obstacles from the city and a few materials vendors. All in all I'm very happy with the outcome and would definitely recommend ReBuilt!"

Malyn D on September 2024

Our mission at Rebuilt is customer first.. construction second. With over 15 years of experience in the residential construction industry, we understand the great responsibility and honor it is to work in your home. We take great pride in our work, and even greater care of our customers.

"I hired ReBuilt for a full-gut interior renovation. From the first call to the final site clean I felt taken care of. The estimate was detailed and clear. The in-house designer, Kaitlin, implemented my ideas and tactfully injected a few of her own to create a beautiful finished design. My Project Manager Ricardo was onsite daily and posted logs on Buildertrend, the companies software system. It was great seeing the updates! He also kept adherence to the 16 week schedule and overcame some minor obstacles from the city and a few materials vendors. All in all I'm very happy with the outcome and would definitely recommend ReBuilt!"

Malyn D on September 2024


Avatar for ABL Contracting, Inc.
ABL Contracting, Inc.
401 E Maitland St
5.00(
1
)
Approved Pro
ABL Contracting, Inc.
401 E Maitland St
5.00(
1
)
Approved Pro
1 years of experience
Free onsite estimate

ABL Contracting, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

ABL Contracting, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!


Avatar for Orange Home Builders Inc.
Orange Home Builders Inc.
4000 Macarthur Blvd Ste 600
5.00(
6
)
Approved Pro
Orange Home Builders Inc.
4000 Macarthur Blvd Ste 600
5.00(
6
)
Approved Pro
11 local quotes requested
7 years of experience

Orange Home 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.

"The addition completed by Orange Home Builders Company has greatly exceeded our expectations. The expanded area is spacious and filled with natural light, creating a welcoming and airy atmosphere. The modern design and high-quality materials used in the remodel have added a sophisticated touch to our home. The meticulous attention to detail and the seamless integration with the original structure have made this addition both beautiful and practical."

Talha S on May 2025

Orange Home 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.

"The addition completed by Orange Home Builders Company has greatly exceeded our expectations. The expanded area is spacious and filled with natural light, creating a welcoming and airy atmosphere. The modern design and high-quality materials used in the remodel have added a sophisticated touch to our home. The meticulous attention to detail and the seamless integration with the original structure have made this addition both beautiful and practical."

Talha S on May 2025


Avatar for Sal & Sons Construction, Inc.
Sal & Sons Construction, Inc.
857 North Sandsprings Drive
5.00(
3
)
Approved Pro
Sal & Sons Construction, Inc.
857 North Sandsprings Drive
5.00(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Welcome to Sal & Sons Construction, Inc. We are a fully licensed, bonded, and insured contracting company specializing in remodeling and renovations. We go above and beyond for our clients, ensuring that each project is performed to the customers' expectations. We pride ourselves in delivering quality work to our customers in a way that is efficient and professional. We provide free, in home estimates so call today to schedule yours! Check out some of our work on Instagram! https://www.instagram.com/salandsonsconstruction/

"I hired Salvador to do my kitchen. He did a fantastic job. He finished the job within the time frame he specify. Very happy I went with him."

Liz R on September 2021

Welcome to Sal & Sons Construction, Inc. We are a fully licensed, bonded, and insured contracting company specializing in remodeling and renovations. We go above and beyond for our clients, ensuring that each project is performed to the customers' expectations. We pride ourselves in delivering quality work to our customers in a way that is efficient and professional. We provide free, in home estimates so call today to schedule yours! Check out some of our work on Instagram! https://www.instagram.com/salandsonsconstruction/

"I hired Salvador to do my kitchen. He did a fantastic job. He finished the job within the time frame he specify. Very happy I went with him."

Liz R on September 2021


Avatar for Prime Construction Services, Inc.
Prime Construction Services, Inc.
865 S. Milliken Ave., Unit A
5.00(
2
)
Approved Pro
Prime Construction Services, Inc.
865 S. Milliken Ave., Unit A
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

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 general contractor 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! ************ VISIT OUR VIRTUAL TOUR ************** https://players.cupix.com/p/BEWLWLeq *************** COPY & PASTE THIS ADDRESS TO YOUR BROWSER

"Andrew Farias was very professional. He was extremely detailed and finished my ADU right within out agreed price. Andrew was always available to answer any questions and was always very responsive to my emails and texts. He kept me well informed at each phase of my project. The quality of his work was top notch and i feel he went above and beyond. My ADU turned out better than i could have imagined and i would absolutely hire him again. I highly recommend Andrew and Prime Construction ."

Kimberly N on March 2022

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 general contractor 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! ************ VISIT OUR VIRTUAL TOUR ************** https://players.cupix.com/p/BEWLWLeq *************** COPY & PASTE THIS ADDRESS TO YOUR BROWSER

"Andrew Farias was very professional. He was extremely detailed and finished my ADU right within out agreed price. Andrew was always available to answer any questions and was always very responsive to my emails and texts. He kept me well informed at each phase of my project. The quality of his work was top notch and i feel he went above and beyond. My ADU turned out better than i could have imagined and i would absolutely hire him again. I highly recommend Andrew and Prime Construction ."

Kimberly N on March 2022

...
Showing 1-10 of 941

Addition to existing structure building services FAQs

How far you can push a room depends on the structure you choose. A cantilevered bump-out can extend 24 inches before building codes require its own footing or foundation. Anything longer needs engineered support and a permit. Check local codes or consult with a structural professional before finalizing plans to ensure your design remains safe and compliant.

Most bump-outs are completed within one to four weeks, even with minimal electrical, plumbing, or HVAC work. Their compact size means less demolition, simpler inspections, and fewer weather-related delays compared to a full-scale addition. Your contractor can provide a more precise timeline once they have determined the scope, materials, and permit schedule, but plan on having the extra square footage ready in approximately a month.

The 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.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
Share project details to get started.