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Find Addition to existing structure builders in Rancho Santa Margarita

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


Pacific Pipeline

67 Bentwood Ln
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Pacific Pipeline

67 Bentwood Ln
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
17 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.


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 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


Avatar for Andri Construction

Andri Construction

48 Half Moon Trail
5.00(
4
)
Approved Pro

Andri Construction

48 Half Moon Trail
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We specialize in residential and commercial projects. Customer centered building with a focus on establishing and maintaining relationships. Or team builds on time and on budget. Please contact us today to schedule your free estimate. 949-973-3966. With over 30 years of construction experience and proven results we pride ourselves on building new structures, additions and remodeling.

"Initial request was speedily acknowledged. Met with me next day to review scope of work. While work to be done was extensive cost saving options were offered. All benchmarks marks were completed to great satisfaction. Highly recommend this knowledgeable contractor!"

Debbie s on August 2022

We specialize in residential and commercial projects. Customer centered building with a focus on establishing and maintaining relationships. Or team builds on time and on budget. Please contact us today to schedule your free estimate. 949-973-3966. With over 30 years of construction experience and proven results we pride ourselves on building new structures, additions and remodeling.

"Initial request was speedily acknowledged. Met with me next day to review scope of work. While work to be done was extensive cost saving options were offered. All benchmarks marks were completed to great satisfaction. Highly recommend this knowledgeable contractor!"

Debbie s on August 2022


Avatar for Frontier Remodeling

Frontier Remodeling

22222 Sherman Way, Unit 101
3.00(
2
)
Approved Pro

Frontier Remodeling

22222 Sherman Way, Unit 101
3.00(
2
)
Approved Pro
10 years of experience
Free onsite estimate

Frontier Remodeling is your area leader for all of your home improvement needs. We know that customer service is key to a job well done, and ours is the best around. When you want top quality work at an always fair price, call the professionals at LLB Remodeling.

"hired Frontier Remodeling for a home remodel, and it was a mistake. I selected them based on Aron telling me his guys were skilled, focused on quality, efficient, and clean. I experienced none of that. Work progressed slowly for 3 months. They rushed and cut corners at the end so they could finish and get paid. Quality was very poor, workers did not respect my property, and my new home was an unorganized filthy mess for 5 months. The only thing about Frontier Remodeling that was organized and punctual was Aron asking for progress payments. In the end, I had to hire other contractors to correct a fair amount of work."

Chris S on April 2024

Frontier Remodeling is your area leader for all of your home improvement needs. We know that customer service is key to a job well done, and ours is the best around. When you want top quality work at an always fair price, call the professionals at LLB Remodeling.

"hired Frontier Remodeling for a home remodel, and it was a mistake. I selected them based on Aron telling me his guys were skilled, focused on quality, efficient, and clean. I experienced none of that. Work progressed slowly for 3 months. They rushed and cut corners at the end so they could finish and get paid. Quality was very poor, workers did not respect my property, and my new home was an unorganized filthy mess for 5 months. The only thing about Frontier Remodeling that was organized and punctual was Aron asking for progress payments. In the end, I had to hire other contractors to correct a fair amount of work."

Chris S on April 2024


Avatar for Tagg Design & Build Inc

Tagg Design & Build Inc

3612 Los Flores Ave
5.00(
3
)
Approved Pro

Tagg Design & Build Inc

3612 Los Flores Ave
5.00(
3
)
Approved Pro
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 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.

"Hiring TAGG Design & Build was the right choice. This decision made my workflow efficient and seamless since they offered multiple services in one company. Working with them on both the design and construction process for the addition to my home was easy, fast, and cost friendly. They added a master suite and an additional family/TV room to the existing. The work crew was respectful of the property, and the management team was quick to answer any questions we had through the process. They are my go to."

Arthur A on May 2025

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 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.

"Hiring TAGG Design & Build was the right choice. This decision made my workflow efficient and seamless since they offered multiple services in one company. Working with them on both the design and construction process for the addition to my home was easy, fast, and cost friendly. They added a master suite and an additional family/TV room to the existing. The work crew was respectful of the property, and the management team was quick to answer any questions we had through the process. They are my go to."

Arthur A on May 2025


Newland Construction, Inc.

428 South Montgomery
4.47(
16
)
Approved Pro

Newland Construction, Inc.

428 South Montgomery
4.47(
16
)
Approved Pro
Customers say: Terrific value
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
43 years of experience

At Newland Construction Inc. we do room additions, second story additions, interior remodels, kitchens, bathrooms and patios. We are family operated since 1982, and our work speaks for itself. You will not be disappointed; we do large or small projects. We also specialize in building new custom homes, and complete remodels. Call us at (714) 981-5729 Newland Construction, Inc., today!

"My husband and I had several appointments with different contractors. When we met with Terry, we both felt he was very knowledgeable in all areas, and had very good pricing. Needless to say, we chose Newland Construction. From day one, we felt comfortable and at ease. Renovation Project: 1. Moved the small kitchen to our large dining room. 2. Moved dining room to former kitchen ( swapped rooms) 3. Dining room: (former kitchen) removed wall for open concept 4. New flooring 5. Stairs: replaced carpet with laminate, replaced rails 6. Living room: Added a window seat with storage 7. Living room: Added entertainment wall with shelving 8. Living room: Added modern fireplace 9. Added windows, moved sliding glass door WE LOVE THE FINISHED PRODUCT!! The project was right on schedule (5 months) and we didn't go over budget. As it is expected to run into a few snags during ANY renovation, Terry and John were very responsive and quick to resolve any issue. They were on top of the problem, and resolved with excellent results. We get a ton of compliments on our home. Thank you, Terry, John and your crew. You've exceeded our expectations. Highly recommended!!"

Donna A on June 2023

At Newland Construction Inc. we do room additions, second story additions, interior remodels, kitchens, bathrooms and patios. We are family operated since 1982, and our work speaks for itself. You will not be disappointed; we do large or small projects. We also specialize in building new custom homes, and complete remodels. Call us at (714) 981-5729 Newland Construction, Inc., today!

"My husband and I had several appointments with different contractors. When we met with Terry, we both felt he was very knowledgeable in all areas, and had very good pricing. Needless to say, we chose Newland Construction. From day one, we felt comfortable and at ease. Renovation Project: 1. Moved the small kitchen to our large dining room. 2. Moved dining room to former kitchen ( swapped rooms) 3. Dining room: (former kitchen) removed wall for open concept 4. New flooring 5. Stairs: replaced carpet with laminate, replaced rails 6. Living room: Added a window seat with storage 7. Living room: Added entertainment wall with shelving 8. Living room: Added modern fireplace 9. Added windows, moved sliding glass door WE LOVE THE FINISHED PRODUCT!! The project was right on schedule (5 months) and we didn't go over budget. As it is expected to run into a few snags during ANY renovation, Terry and John were very responsive and quick to resolve any issue. They were on top of the problem, and resolved with excellent results. We get a ton of compliments on our home. Thank you, Terry, John and your crew. You've exceeded our expectations. Highly recommended!!"

Donna A on June 2023


Avatar for McGee Construction

McGee Construction

639 Maple Avenue
4.88(
17
)
Approved Pro

McGee Construction

639 Maple Avenue
4.88(
17
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
33 local quotes requested

McGee Construction is a family-owned and operated remodeling company with over 30 years of experience. We specialize in major renovations, including kitchens, bathrooms, room additions, and ADUs. Our team is dedicated to delivering high-quality craftsmanship and personalized service, and we personally stand behind the success of every project. Call now to discuss your next project!

"David Burch and his crew remodeled our den with live edge shelves and built in cabinets. The level of professionalism from all of the tradesmen was top notch. I love our den. Working with mcgee construction was so easy and pleasant. David would respond in a timely manner and explained everything in depth. I highly recommend this company and will definitely be using them for all my remodeling needs."

Jamie A on March 2024

McGee Construction is a family-owned and operated remodeling company with over 30 years of experience. We specialize in major renovations, including kitchens, bathrooms, room additions, and ADUs. Our team is dedicated to delivering high-quality craftsmanship and personalized service, and we personally stand behind the success of every project. Call now to discuss your next project!

"David Burch and his crew remodeled our den with live edge shelves and built in cabinets. The level of professionalism from all of the tradesmen was top notch. I love our den. Working with mcgee construction was so easy and pleasant. David would respond in a timely manner and explained everything in depth. I highly recommend this company and will definitely be using them for all my remodeling needs."

Jamie A on March 2024


CASSINI CONSTRUCTION

4731 Baldwin PARK BLVD
5.00(
1
)
Approved Pro

CASSINI CONSTRUCTION

4731 Baldwin PARK BLVD
5.00(
1
)
Approved Pro
13 local quotes requested
20 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Bathroom/ pavers/ turf / outside fireplace/ and patio cover.."

robert S on April 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Bathroom/ pavers/ turf / outside fireplace/ and patio cover.."

robert S on April 2025

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FAQs for addition to existing structure building service projects in Rancho Santa Margarita, 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 Rancho Santa Margarita, 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.