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Find Addition to existing structure builders in Corona

Avatar for Hammer Construction

Hammer Construction

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Approved Pro

Hammer Construction

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
16 years of experience
Free onsite estimate

We are a locally owned and operated company with over 25 years of industry experience. We value honesty and integrity, and stand behind our work. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long term relationships with our clients and guarantee your satisfaction!

We are a locally owned and operated company with over 25 years of industry experience. We value honesty and integrity, and stand behind our work. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long term relationships with our clients and guarantee your satisfaction!


Avatar for Socal Express Restoration and Construction Inc.

Socal Express Restoration and Construction Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Socal Express Restoration and Construction Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
6 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 Elias Amparano Remodeling

Elias Amparano Remodeling

5.00(
2
)
Approved Pro

Elias Amparano Remodeling

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

Licensed Contractor, we are a small company but deliver big results, let us give you a quality project for less. We offer 12 month 0 % financing OAC. We accept all major credit cards. We also handle all insurance loss claims with our own in house adjuster. Call us before or after a lose and let us get you what you deserve, before you say yes, let us give you a second opinion we have acquired our customers thousands of dollars more on their claims.

"Easy to work with, fantastic results. The finish on our saltillo tile floors had badly deteriorated and they were able to ressurect it. And their price was quite reasonable."

Ric W on November 2023

Licensed Contractor, we are a small company but deliver big results, let us give you a quality project for less. We offer 12 month 0 % financing OAC. We accept all major credit cards. We also handle all insurance loss claims with our own in house adjuster. Call us before or after a lose and let us get you what you deserve, before you say yes, let us give you a second opinion we have acquired our customers thousands of dollars more on their claims.

"Easy to work with, fantastic results. The finish on our saltillo tile floors had badly deteriorated and they were able to ressurect it. And their price was quite reasonable."

Ric W on November 2023


Pacific Pipeline

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Pacific Pipeline

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
18 years of experience
Free onsite estimate

We are 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.

We are 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.


Avatar for Olalde Group, Inc.

Olalde Group, Inc.

5.00(
2
)
Approved Pro

Olalde Group, Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
7 years of experience
Free onsite estimate

Olalde Group, 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 makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Please give us a call today!

"David and Efrain did an amazing job converting our oversized 2 car garage into a one bedroom apartment. They were very attentive, cost conscious and efficient! They were on hand monitoring the subcontractors and making sure the job was done correctly. They did a great job and we are very gratefully for their hard work!"

Darlene J on October 2025

Olalde Group, 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 makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Please give us a call today!

"David and Efrain did an amazing job converting our oversized 2 car garage into a one bedroom apartment. They were very attentive, cost conscious and efficient! They were on hand monitoring the subcontractors and making sure the job was done correctly. They did a great job and we are very gratefully for their hard work!"

Darlene J on October 2025


Avatar for Nicolaisen & Sons Construction Company, Inc

Nicolaisen & Sons Construction Company, Inc

3.00(
2
)
Approved Pro

Nicolaisen & Sons Construction Company, Inc

3.00(
2
)
Approved Pro
42 years of experience
Free onsite estimate

Nicolaisen & Sons Construction Company, Inc is committed to excellence 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.

"I find them totally unprofessional"

jim m on March 2012

Nicolaisen & Sons Construction Company, Inc is committed to excellence 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.

"I find them totally unprofessional"

jim m on March 2012


"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 Laguna Bay Developing

Laguna Bay Developing

4.56(
9
)
Approved Pro

Laguna Bay Developing

4.56(
9
)
Approved Pro
Customers say: Quick response
91 local quotes requested
Emergency services offered

We are a building, architectural design company that strongly believes in adding value with quality remodeling and affordable pricing. We specialize in crafting your dreams. Our owner, David Fidman, has experience since the 1990's in new construction and remodeling of homes. Our enthusiastic and fully licensed and bonded team can exceed your hopes for any project with our personalized service, whether it is constructing your dream home, renovating and upgrading your curb appeal, or remodeling your existing floor plan. As a boutique firm, we optimize personalization by getting to know our customers needs and wants through an attentive project management style. At Laguna Bay Developing, we want this experience to be as an exciting experience as it is rewarding, from the design plans and material selections to the permit approval and construction process, we will be there for every step, we love to see our clients dreams realized!

"I had an excellent experience working with Laguna Bay Developing. From the initial call and quote all the way through to project completion, they were extremely responsive and professional. Their quote was detailed and transparent, making it easy to understand exactly what I was paying for—no surprises or hidden costs. The work itself was completed on schedule and to a high standard. The team was respectful, organized, and clearly took pride in their work. Communication throughout the process was consistent and clear, which gave me confidence every step of the way. I especially appreciated their attention to detail and willingness to answer any questions I had. It’s not easy to find a company that combines fair pricing, reliability, and great workmanship, but they delivered on all fronts. Highly recommended!"

steve r on March 2025

We are a building, architectural design company that strongly believes in adding value with quality remodeling and affordable pricing. We specialize in crafting your dreams. Our owner, David Fidman, has experience since the 1990's in new construction and remodeling of homes. Our enthusiastic and fully licensed and bonded team can exceed your hopes for any project with our personalized service, whether it is constructing your dream home, renovating and upgrading your curb appeal, or remodeling your existing floor plan. As a boutique firm, we optimize personalization by getting to know our customers needs and wants through an attentive project management style. At Laguna Bay Developing, we want this experience to be as an exciting experience as it is rewarding, from the design plans and material selections to the permit approval and construction process, we will be there for every step, we love to see our clients dreams realized!

"I had an excellent experience working with Laguna Bay Developing. From the initial call and quote all the way through to project completion, they were extremely responsive and professional. Their quote was detailed and transparent, making it easy to understand exactly what I was paying for—no surprises or hidden costs. The work itself was completed on schedule and to a high standard. The team was respectful, organized, and clearly took pride in their work. Communication throughout the process was consistent and clear, which gave me confidence every step of the way. I especially appreciated their attention to detail and willingness to answer any questions I had. It’s not easy to find a company that combines fair pricing, reliability, and great workmanship, but they delivered on all fronts. Highly recommended!"

steve r on March 2025


Avatar for Reuven & Co. Inc

Reuven & Co. Inc

5.00(
5
)
Approved Pro

Reuven & Co. Inc

5.00(
5
)
Approved Pro
3 years of experience
Free onsite estimate

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Reuven & Co. gave our 1970s home a brand-new life! We were nervous about taking on such a large remodel, but their team made the process seamless and enjoyable. They respected our home, our time, and our budget. Now every room feels fresh, modern, and exactly how we envisioned it. We?re truly grateful for their honesty and dedication. "

Brad H on January 2026

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Reuven & Co. gave our 1970s home a brand-new life! We were nervous about taking on such a large remodel, but their team made the process seamless and enjoyable. They respected our home, our time, and our budget. Now every room feels fresh, modern, and exactly how we envisioned it. We?re truly grateful for their honesty and dedication. "

Brad H on January 2026


Opulent Design Build

5.00(
20
)
Approved Pro

Opulent Design Build

5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
10 local quotes requested

Opulent Design Build . One point of contact from Start to Finish. Opulent Design Build takes the complicated process of home designing, building and remodeling and makes it an experience that you will love! There's no need to fear the design & construction process. Opulent Design Build personally handles every aspect of the construction process: design, engineering, site survey, permitting, construction and inspections. We are truly a "one-stop" design-build company.

"My wife and I were looking into adding some square footage to our home as well as remodel. We were going in circles trying to plan and budget and it honestly was one of the most stressful/hardest experiences of our marriage. That was until we stumbled upon Opulent. I do not remember how we found them, but man, I am so glad we did. Eddie and his whole team were OUTSTANDING throughout the whole process. They really made us feel like we were part of the Opulent Family as well as producing real results. They managed EVERYTHING just about perfectly. From dealing with the permit process to helping us figure out what we needed to fill our space with beautiful fixtures to actually getting the construction done. The preconstruction process was so simple thanks to their amazing team and construction flowed so smoothly. The field workers were respectful and clean every day. 10/10 cannot recommend enough. Thank you Opulent!!"

Shaun M on August 2025

Opulent Design Build . One point of contact from Start to Finish. Opulent Design Build takes the complicated process of home designing, building and remodeling and makes it an experience that you will love! There's no need to fear the design & construction process. Opulent Design Build personally handles every aspect of the construction process: design, engineering, site survey, permitting, construction and inspections. We are truly a "one-stop" design-build company.

"My wife and I were looking into adding some square footage to our home as well as remodel. We were going in circles trying to plan and budget and it honestly was one of the most stressful/hardest experiences of our marriage. That was until we stumbled upon Opulent. I do not remember how we found them, but man, I am so glad we did. Eddie and his whole team were OUTSTANDING throughout the whole process. They really made us feel like we were part of the Opulent Family as well as producing real results. They managed EVERYTHING just about perfectly. From dealing with the permit process to helping us figure out what we needed to fill our space with beautiful fixtures to actually getting the construction done. The preconstruction process was so simple thanks to their amazing team and construction flowed so smoothly. The field workers were respectful and clean every day. 10/10 cannot recommend enough. Thank you Opulent!!"

Shaun M on August 2025

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FAQs for addition to existing structure building service projects in Corona, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Corona, 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.