Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Oceanside, CA

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 Oceanside

Avatar for Remcon Design Build

Remcon Design Build

7154 Convoy Ct
5.00(
1
)
Approved Pro

Remcon Design Build

7154 Convoy Ct
5.00(
1
)
Approved Pro
19 years of experience
Free onsite estimate

Remcon Design Build 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.

Remcon Design Build 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.


Avatar for IJH Construction, Inc.

IJH Construction, Inc.

110 W Avenida Cordoba
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

IJH Construction, Inc.

110 W Avenida Cordoba
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
24 years of experience
Free onsite estimate

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.

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.


Avatar for Elias Amparano Remodeling

Elias Amparano Remodeling

3752 Costa Del Rey
5.00(
2
)
Approved Pro

Elias Amparano Remodeling

3752 Costa Del Rey
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 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


"Tuan is very honest, great communicator, reasonable price and great quality."

Phil R on June 2020

lic since 92 30 years of experience

"Tuan is very honest, great communicator, reasonable price and great quality."

Phil R on June 2020


Avatar for Preferred Remodelers

Preferred Remodelers

1145-C Industrial Avenue
5.00(
8
)
Approved Pro

Preferred Remodelers

1145-C Industrial Avenue
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
39 years of experience

It is my mission to provide excellence to all our projects and exceed our clients' expectations of the value they will receive by providing professionalism of management, as well as high quality craftsmanship. Trust and honesty are to be the foundation for all our client and business relationships. It is my goal to develop and nurture relationships with our clients and business associates by maintaining a team atmosphere with a common goal.

"Jim is a great guy to work with!!! He was very understanding and responsive to all my questions and concerns. He oversaw the entire operation of removing a wall to open up the living area. This encompassed general demo and construction, electrical, resurfacing, matching texture and repainting. Followed by some special hardwood floor detail work. His team of workers are always excellent and considerate of us and our home. You will not be disappointed! It is very difficult to try and choose a contractor and I feel lucky to have found him!!"

Melody M on November 2021

It is my mission to provide excellence to all our projects and exceed our clients' expectations of the value they will receive by providing professionalism of management, as well as high quality craftsmanship. Trust and honesty are to be the foundation for all our client and business relationships. It is my goal to develop and nurture relationships with our clients and business associates by maintaining a team atmosphere with a common goal.

"Jim is a great guy to work with!!! He was very understanding and responsive to all my questions and concerns. He oversaw the entire operation of removing a wall to open up the living area. This encompassed general demo and construction, electrical, resurfacing, matching texture and repainting. Followed by some special hardwood floor detail work. His team of workers are always excellent and considerate of us and our home. You will not be disappointed! It is very difficult to try and choose a contractor and I feel lucky to have found him!!"

Melody M on November 2021


Avatar for Olalde Group, Inc.

Olalde Group, Inc.

741 East Adams Park Drive
5.00(
1
)
Approved Pro

Olalde Group, Inc.

741 East Adams Park Drive
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 local quotes requested

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!

"Efrain and David are fantastic! When our contractor was suddenly unable to continue with the job, David took over with a great positive attitude. He persistently worked with the city to get the building permit, finally ending a tedious 10 month process. Crews were here working every day. Each one of them was considerate, conscientious, and demonstrated a strong work ethic. Efrain and David communicated with us most days and were always accessible to us. My ADU is adorable and just what we wanted and I am sure that many contractors could have pulled it off. The important thing about Olalde is that they truly care and honestly want us to be happy."

Judy M on October 2023

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!

"Efrain and David are fantastic! When our contractor was suddenly unable to continue with the job, David took over with a great positive attitude. He persistently worked with the city to get the building permit, finally ending a tedious 10 month process. Crews were here working every day. Each one of them was considerate, conscientious, and demonstrated a strong work ethic. Efrain and David communicated with us most days and were always accessible to us. My ADU is adorable and just what we wanted and I am sure that many contractors could have pulled it off. The important thing about Olalde is that they truly care and honestly want us to be happy."

Judy M on October 2023


Avatar for Socal Express Restoration and Construction Inc.

Socal Express Restoration and Construction Inc.

6860 Canby Avenue, Suite 114
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Socal Express Restoration and Construction Inc.

6860 Canby Avenue, Suite 114
New on HomeAdvisorNew 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


Opulent Design Build

9471 IRVINE CENTER DR, #150
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Opulent Design Build

9471 IRVINE CENTER DR, #150
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
16 years of experience
Free onsite estimate

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.

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.


Avatar for Ritz Design Build, a Division of Budge-It Home Remodeling, Inc.

Ritz Design Build, a Division of Budge-It Home Remodeling, Inc.

7878 Clairemont Mesa Blvd, Suite K
4.94(
15
)
Approved Pro

Ritz Design Build, a Division of Budge-It Home Remodeling, Inc.

7878 Clairemont Mesa Blvd, Suite K
4.94(
15
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
18 local quotes requested

Ritz Design Build, has served all of San Diego County as a design-build contractor since 1965.Their specialty is designing and building Accessory Dwelling Units, ADU's, and custom home additions, such as Master Suites, Family Rooms, Granny Flats (ADU's) Kitchen Extensions, and Second Stories. They also offer a 3D design service on all qualifying projects. This service allows homeowners to visualize their completed projects during the initial design stage. The service includes both interior and exterior 3D renderings and floor plan options. Put their 55 years of tried & true experience to work for you and see why so many of your neighbors have already chosen Ritz Design Build to design and build their home addition.

"From the first meeting with Ed and Claudia, my family knew we were in great hands. They listened to our needs and wants and offered advice to help us make the best decisions for our family. During the design process, all the details we reviewed and the team listened. The final design was exactly what I wanted. Once Ritz began the remodel, I was kept in the loop from permits, inspections, timelines, and everything else. I was never guessing. The project manger, Aiden, listened to all my questions and made sure I understood each decision made. When it came to the details, Aiden was always a phone call away. He spent hours working to make sure everything was perfect and that I was happy with the end results. Ritz was professional and timely and even completed the project within in the timeframe (over a month earlier than projected). During demolition, the crew worked to overcome any challenges that came their way. The construction process moved quickly and each team was professional. All subcontractors were part of the team ( plumbing, flooring, painting, etc.) they always were professional and answered any questions I had. Even during a pandemic, Ritz was able to design and build my dream home. I appreciate all their hard work and dedication to the remodel. Aiden is knowledgeable with his skills and handy work and led the team with excellence. Eddie designed a home that met all my family needs. The crews were top notch and the best of the best. And Ed and Claudia always treated us like family when we met. If you need your home remodeled, Ritz is the company for you."

Christinia E on February 2022

Ritz Design Build, has served all of San Diego County as a design-build contractor since 1965.Their specialty is designing and building Accessory Dwelling Units, ADU's, and custom home additions, such as Master Suites, Family Rooms, Granny Flats (ADU's) Kitchen Extensions, and Second Stories. They also offer a 3D design service on all qualifying projects. This service allows homeowners to visualize their completed projects during the initial design stage. The service includes both interior and exterior 3D renderings and floor plan options. Put their 55 years of tried & true experience to work for you and see why so many of your neighbors have already chosen Ritz Design Build to design and build their home addition.

"From the first meeting with Ed and Claudia, my family knew we were in great hands. They listened to our needs and wants and offered advice to help us make the best decisions for our family. During the design process, all the details we reviewed and the team listened. The final design was exactly what I wanted. Once Ritz began the remodel, I was kept in the loop from permits, inspections, timelines, and everything else. I was never guessing. The project manger, Aiden, listened to all my questions and made sure I understood each decision made. When it came to the details, Aiden was always a phone call away. He spent hours working to make sure everything was perfect and that I was happy with the end results. Ritz was professional and timely and even completed the project within in the timeframe (over a month earlier than projected). During demolition, the crew worked to overcome any challenges that came their way. The construction process moved quickly and each team was professional. All subcontractors were part of the team ( plumbing, flooring, painting, etc.) they always were professional and answered any questions I had. Even during a pandemic, Ritz was able to design and build my dream home. I appreciate all their hard work and dedication to the remodel. Aiden is knowledgeable with his skills and handy work and led the team with excellence. Eddie designed a home that met all my family needs. The crews were top notch and the best of the best. And Ed and Claudia always treated us like family when we met. If you need your home remodeled, Ritz is the company for you."

Christinia E on February 2022


Avatar for VIP GENERAL CONTRACTOR INC

VIP GENERAL CONTRACTOR INC

1253 Bobolink Dr
5.00(
6
)
Approved Pro

VIP GENERAL CONTRACTOR INC

1253 Bobolink Dr
5.00(
6
)
Approved Pro
5 years of experience
Free onsite estimate

VIP GENERAL CONTRACTOR INC is a locally owned company that takes pride in our skills and craftsmanship. We communicate effectively and with transparency with our customers. We will complete work within the stated timelines given as much as we are capable. Our turn around time is usually quick and efficient. Please call us today for your free estimate.

"Victor and crew have done all they said they would do, on time and with enthusiasm. I will post again, with pictures when job is done. They are in the early stages of a bedroom extension with an added bathroom and they are right on schedule. His bid was reasonable and on time, so if you are in process of getting bids ( get several at least); I highly recommend that you add Victor Pilar to your list of contractors to contact. We are very happy with them, and can’t wait to see the finished project! Don’t let his shorter list of recommendations fool you! "

Claudia W on May 2025

VIP GENERAL CONTRACTOR INC is a locally owned company that takes pride in our skills and craftsmanship. We communicate effectively and with transparency with our customers. We will complete work within the stated timelines given as much as we are capable. Our turn around time is usually quick and efficient. Please call us today for your free estimate.

"Victor and crew have done all they said they would do, on time and with enthusiasm. I will post again, with pictures when job is done. They are in the early stages of a bedroom extension with an added bathroom and they are right on schedule. His bid was reasonable and on time, so if you are in process of getting bids ( get several at least); I highly recommend that you add Victor Pilar to your list of contractors to contact. We are very happy with them, and can’t wait to see the finished project! Don’t let his shorter list of recommendations fool you! "

Claudia W on May 2025

...
Showing 1-10 of 977
FAQs for addition to existing structure building service projects in Oceanside, CA

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Oceanside, 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.