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Addition to existing structure builders in Fountain Valley

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 All Service Industries, Inc.
All Service Industries, Inc.
881 West 18th Street
4.96(
12
)
Approved Pro
All Service Industries, Inc.
881 West 18th Street
4.96(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
38 years of experience

All Service Industries, inc., has been serving the Orange County Coastal Communities in California area for over 27 years! We offer Prompt and Professional Service with Quality Workmanship in which include: remodeling, building, painting, interior and exterior design, custom built homes, and most importantly customer service. We have many happy references available. Call us today to see why we come so highly recommended! You can start by visiting out website www.AllService911.com

"I called All Service out to replace cabinetry below and both sides of my kitchen sink, and to install a new kitchen floor due to a tube that suddenly burst below the kitchen sink. The technician was friendly, professional, outlined the estimate well, and made sure I was happy with the results as the job went along. His team did a great job and I would hire them again."

Terence W on January 2023

All Service Industries, inc., has been serving the Orange County Coastal Communities in California area for over 27 years! We offer Prompt and Professional Service with Quality Workmanship in which include: remodeling, building, painting, interior and exterior design, custom built homes, and most importantly customer service. We have many happy references available. Call us today to see why we come so highly recommended! You can start by visiting out website www.AllService911.com

"I called All Service out to replace cabinetry below and both sides of my kitchen sink, and to install a new kitchen floor due to a tube that suddenly burst below the kitchen sink. The technician was friendly, professional, outlined the estimate well, and made sure I was happy with the results as the job went along. His team did a great job and I would hire them again."

Terence W on January 2023


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
15 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


Opulent Design Build
9471 IRVINE CENTER DR, #150
New on HomeAdvisorNew on Angi
Approved Pro
Opulent Design Build
9471 IRVINE CENTER DR, #150
New on AngiNew 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.


Ricardo Victor Azernitzky Silva
9520 East Avenue, Unit Q12
4.88(
4
)
Approved Pro
Ricardo Victor Azernitzky Silva
9520 East Avenue, Unit Q12
4.88(
4
)
Approved Pro
Customers say: Quick response
37 local quotes requested
1 years of experience

RAS General Contractor is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Quality work, finished project within the timeframe I needed. I hired Ricardo to manage the construction of my ADU. I can confidently say that his work is very professional and the communication we had made me very comfortable and confident that he knows what he is doing."

Ashley A on April 2025

RAS General Contractor is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Quality work, finished project within the timeframe I needed. I hired Ricardo to manage the construction of my ADU. I can confidently say that his work is very professional and the communication we had made me very comfortable and confident that he knows what he is doing."

Ashley A on April 2025


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


M & R Essential Contractors
239 South Orange Avenue
New on HomeAdvisorNew on Angi
Approved Pro
M & R Essential Contractors
239 South Orange Avenue
New on AngiNew on HomeAdvisor
Approved Pro
7 years of experience
Free onsite estimate

We’re 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 Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other 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 guaranteeing your satisfaction!

We’re 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 Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other 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 guaranteeing your satisfaction!


Avatar for Jorcast Enterprises, Inc.
Jorcast Enterprises, Inc.
12345 S. Mountain Ave Suite N-258
4.95(
11
)
Approved Pro
Jorcast Enterprises, Inc.
12345 S. Mountain Ave Suite N-258
4.95(
11
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
37 years of experience

Jorcast Enterprises, Inc., DBA A- Right Builders proudly serves it’s customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! .......MUST HAVE PLANS/ARCHITECTURAL DRAWINGS PRIOR TO CONTACTING OUR COMPANY. we can not provide a quote with out approved set of plans.

"Jorge, Andy and their team at A1-Builders were knowledgeable, honest, reliable and above all always available to answer any questions we had. They helped build a 2 bed 1 bath 600sqft addition to our home during the lean months over the pandemic. We had multiple projects (pool, patio, retaining wall) going on at the same time with other contractors and the crew from A1-Builders were by far the most professional. They always made sure that they left their work site clean after each dayâ s work. Jorge will definitely be the first person I call for our next home project because I know that even if he does not have the time to do the work, he will always guide me in the right direction. Thank you again to the entire A1-Builder team!"

Sajeed C on January 2023

Jorcast Enterprises, Inc., DBA A- Right Builders proudly serves it’s customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! .......MUST HAVE PLANS/ARCHITECTURAL DRAWINGS PRIOR TO CONTACTING OUR COMPANY. we can not provide a quote with out approved set of plans.

"Jorge, Andy and their team at A1-Builders were knowledgeable, honest, reliable and above all always available to answer any questions we had. They helped build a 2 bed 1 bath 600sqft addition to our home during the lean months over the pandemic. We had multiple projects (pool, patio, retaining wall) going on at the same time with other contractors and the crew from A1-Builders were by far the most professional. They always made sure that they left their work site clean after each dayâ s work. Jorge will definitely be the first person I call for our next home project because I know that even if he does not have the time to do the work, he will always guide me in the right direction. Thank you again to the entire A1-Builder team!"

Sajeed C on January 2023


Pro A Line Construction
64 Kazan St
New on HomeAdvisorNew on Angi
Approved Pro
Pro A Line Construction
64 Kazan St
New on AngiNew on HomeAdvisor
Approved Pro
Free onsite estimate
Emergency services offered

With over 30 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on our close attention to detail to perform the highest quality of work. Give us a call today, we look forward to working with you!

With over 30 years of experience, I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on our close attention to detail to perform the highest quality of work. Give us a call today, we look forward to working with you!


Avatar for My Landscape Love & Construction, Inc.
My Landscape Love & Construction, Inc.
2612 W 155th Street
5.00(
6
)
Approved Pro
My Landscape Love & Construction, Inc.
2612 W 155th Street
5.00(
6
)
Approved Pro
25 years of experience
Free onsite estimate

MLLC has over 30 years of experience in the construction industry. We do everything from new construction to repairs. Some of our services include: kitchen/bathroom remodels, cabinets, ADU's, landscape installation/remodel, hardscape, outdoor BBQ's, additions, LED lighting, vinyl plank flooring, tile work, painting, handyman services. Let us help you build your dream home.

"Floors, interior doors, front door, fireplace surround, paint, backyard drainage, gate and various smaller items. Excellent work and always cleaned up at the end of the day."

Lucille R on May 2025

MLLC has over 30 years of experience in the construction industry. We do everything from new construction to repairs. Some of our services include: kitchen/bathroom remodels, cabinets, ADU's, landscape installation/remodel, hardscape, outdoor BBQ's, additions, LED lighting, vinyl plank flooring, tile work, painting, handyman services. Let us help you build your dream home.

"Floors, interior doors, front door, fireplace surround, paint, backyard drainage, gate and various smaller items. Excellent work and always cleaned up at the end of the day."

Lucille R on May 2025

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Addition to existing structure building services FAQs

Most ADU projects require several months from initial planning through final inspection. The timeline includes designing plans, securing permits, site preparation, construction, and finishing work. 

Factors affecting duration include project complexity, contractor availability, weather conditions, and local permitting processes. Planning for potential delays due to material shortages or inspection scheduling is advisable when establishing your project timeline.

Homeowners can access various funding sources for ADU projects. Home equity loans and lines of credit leverage existing property value, while construction loans provide phased funding specifically for building projects. Some areas offer specialized ADU financing programs with favorable terms. 

Personal loans might work for smaller conversions, though they often carry higher interest rates. Your financial situation, credit profile, and project scope will determine which option provides the most advantageous terms.

Adding an ADU often increases your property's assessed value, resulting in higher tax obligations. The specific impact varies by location, as assessment methods and tax rates differ between jurisdictions. Some areas offer temporary exemptions or gradual increases to ease the financial transition. 

For accurate projections, consult your local tax assessor before beginning construction to understand how your specific project will affect future tax bills.

Short-term rental regulations vary dramatically between municipalities. Some jurisdictions permit vacation rentals with minimal restrictions, while others impose occupancy limits, licensing requirements, or outright prohibitions, particularly for ADUs. Many areas require owner occupancy of the primary residence when renting an ADU short-term. 

Research your local ordinances thoroughly before planning rental income, as non-compliance penalties can be substantial.

The ADU construction process frequently encounters obstacles, including complex permitting requirements, unexpected site conditions requiring additional work, contractor scheduling difficulties, and budget management challenges. Many homeowners underestimate the complexity of coordinating multiple specialized trades. 

Additionally, ensuring adequate privacy between the main residence and ADU while maintaining aesthetic cohesion requires careful planning. Thorough preparation and working with experienced professionals can help navigate these common pitfalls.

Identifying qualified ADU contractors requires targeted research. Begin by seeking recommendations from neighbors with completed ADU projects or contacting local builder associations for specialist referrals. Review contractors' portfolios specifically for ADU or small residential projects similar to your vision. 

When interviewing potential candidates, assess their familiarity with local ADU regulations, ask about recent similar projects, and request contact information for past clients with comparable projects.

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.
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