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Find Addition to existing structure builders in San Ysidro

Dryfix Services, Inc.

2252 Main St Unit 10
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Dryfix Services, Inc.

2252 Main St Unit 10
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
13 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.

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
6 years of experience

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 MVP Leaders, Inc.

MVP Leaders, Inc.

20301 Ventura Blvd #225
4.29(
7
)
Approved Pro

MVP Leaders, Inc.

20301 Ventura Blvd #225
4.29(
7
)
Approved Pro
Customers say: Quality work
20 years of experience
Free onsite estimate

We want to change your space! It's time to once again appreciate the space that you live in and bring family and friends together in a space that you can be proud of, that represents who you are and how you want to live. From elegant interiors and inspirational exteriors to additions and Accessory Dwelling Units, MVP Builders brings years of experience, an on-budget/on-time production schedule, and a transparent project management approach to every job we take on.

"If you are dealing with MVP Builders I would be very careful. The people they hire for the jobs are not very knowledgeable and they do sloppy work. When you try to reach out to them to fix the problem they do not call back."

Tony R on May 2017

We want to change your space! It's time to once again appreciate the space that you live in and bring family and friends together in a space that you can be proud of, that represents who you are and how you want to live. From elegant interiors and inspirational exteriors to additions and Accessory Dwelling Units, MVP Builders brings years of experience, an on-budget/on-time production schedule, and a transparent project management approach to every job we take on.

"If you are dealing with MVP Builders I would be very careful. The people they hire for the jobs are not very knowledgeable and they do sloppy work. When you try to reach out to them to fix the problem they do not call back."

Tony R on May 2017


Avatar for Guerra Design & Construction

Guerra Design & Construction

12652 Cherrywood St
5.00(
5
)
Approved Pro

Guerra Design & Construction

12652 Cherrywood St
5.00(
5
)
Approved Pro
Customers say: Quality work
14 years of experience
Free onsite estimate

Guerra Design & Construction 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.

"They were amazing and deliver what we desire within our budget. Very polite great workers!! We are very satisfied with their work, highly recommended "

Malvina L on August 2025

Guerra Design & Construction 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.

"They were amazing and deliver what we desire within our budget. Very polite great workers!! We are very satisfied with their work, highly recommended "

Malvina L on August 2025


Avatar for The Ace Builder, Inc.

The Ace Builder, Inc.

424 15th St #3908
5.00(
1
)
Approved Pro

The Ace Builder, Inc.

424 15th St #3908
5.00(
1
)
Approved Pro
24 years of experience
Free onsite estimate

We are passionate about construction and remodeling, transforming our clients homes while delivering an exceptional experience. When you hire us, you're hiring a team of skilled professionals who care about your home just as much as you do. We are honored when a client chooses to work with us, understanding the commitment you're making for your home.

"I hired The Ace Builder to do a major renovation, replacing all the windows in my house, re-plastering, installing an HVAC system, and installing a new roof. They also helped me with a retaining wall on the side of my house that needed immediate repair. They responded very quickly. They did a great job on the entire project and took care of all the permits needed for the job, making it smooth and easy for me. They actually finished the job a week ahead of the deadline. I was really impressed. Thank you guys. I look forward to working with you in the future."

Mike N on May 2025

We are passionate about construction and remodeling, transforming our clients homes while delivering an exceptional experience. When you hire us, you're hiring a team of skilled professionals who care about your home just as much as you do. We are honored when a client chooses to work with us, understanding the commitment you're making for your home.

"I hired The Ace Builder to do a major renovation, replacing all the windows in my house, re-plastering, installing an HVAC system, and installing a new roof. They also helped me with a retaining wall on the side of my house that needed immediate repair. They responded very quickly. They did a great job on the entire project and took care of all the permits needed for the job, making it smooth and easy for me. They actually finished the job a week ahead of the deadline. I was really impressed. Thank you guys. I look forward to working with you in the future."

Mike N on May 2025


Pen & Mason Construction, Inc.

4025 NORDICA Ave
5.00(
4
)
Approved Pro

Pen & Mason Construction, Inc.

4025 NORDICA Ave
5.00(
4
)
Approved Pro
23 local quotes requested
3 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! Book with us online or feel free to give us a call today! Our reputation is based on service, safety and quality, regardless of how large or small the job.

"We recently hired Pen and Mason to expand our pantry, build a custom coffee bar, install new electrical outlets, and replace the carpet on our stairs with beautiful vinyl plank flooring — and we could not be happier with the results! From start to finish, their team was professional, friendly, and attentive to detail. They took the time to understand our vision, offered helpful suggestions, and executed the work flawlessly. The pantry expansion is so functional, the coffee bar is my new favorite spot in the house, and the new flooring completely transformed our stairs. They also handled the electrical work seamlessly, ensuring everything was up to code and perfectly placed and they also put up with my picky husband in the process. "

Adriana J on August 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! Book with us online or feel free to give us a call today! Our reputation is based on service, safety and quality, regardless of how large or small the job.

"We recently hired Pen and Mason to expand our pantry, build a custom coffee bar, install new electrical outlets, and replace the carpet on our stairs with beautiful vinyl plank flooring — and we could not be happier with the results! From start to finish, their team was professional, friendly, and attentive to detail. They took the time to understand our vision, offered helpful suggestions, and executed the work flawlessly. The pantry expansion is so functional, the coffee bar is my new favorite spot in the house, and the new flooring completely transformed our stairs. They also handled the electrical work seamlessly, ensuring everything was up to code and perfectly placed and they also put up with my picky husband in the process. "

Adriana J on August 2025


Avatar for Crest View Construction

Crest View Construction

6125 Imperial Ave
4.88(
8
)
Approved Pro

Crest View Construction

6125 Imperial Ave
4.88(
8
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

General contractor. 20 years experience and dedication. We specialize in all types of remodels and are here to assist you in making your dream remodel a reality. We pride ourself on delivering customer satisfaction on all projects. Quality work on time and budget . Call or click to schedule an estimate today!

"I did two whole home renovations with CrestView Construction. I found them to be knowledgeable, friendly and respectful of my homes. Mr. Hameed is communicative and tries to stay on schedule. One aspect that I was really impressed with, was his dedication to getting the job done correct and fixing things that fell below my standards, without protest. You can tell Mr. Hameed and CrestView Construction take pride in the work they do and are dedicated to providing great finished spaces."

Lara B on August 2025

General contractor. 20 years experience and dedication. We specialize in all types of remodels and are here to assist you in making your dream remodel a reality. We pride ourself on delivering customer satisfaction on all projects. Quality work on time and budget . Call or click to schedule an estimate today!

"I did two whole home renovations with CrestView Construction. I found them to be knowledgeable, friendly and respectful of my homes. Mr. Hameed is communicative and tries to stay on schedule. One aspect that I was really impressed with, was his dedication to getting the job done correct and fixing things that fell below my standards, without protest. You can tell Mr. Hameed and CrestView Construction take pride in the work they do and are dedicated to providing great finished spaces."

Lara B on August 2025


Avatar for Pollo Construction and Granite Inc

Pollo Construction and Granite Inc

1610 Pomeroy Rd
5.00(
3
)
Approved Pro

Pollo Construction and Granite Inc

1610 Pomeroy Rd
5.00(
3
)
Approved Pro
20 years of experience
Free onsite estimate

Pollo Construction and Granite Inc is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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!

"Pollo Construction & granite inc did a great job with the project they did at my house. Full kitchen remodel . They demoed , and placed new everything plus the lovely granite counter tops they installed in my kitchen and kitchen island . Pollo construction was very clean & detailed when dem o & leaving everything clean. No mess & super clean with the granite . I 100% recommend if you want any type of remodleing& or granite construction. 10/10 with their work . "

vanesa r on August 2025

Pollo Construction and Granite Inc is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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!

"Pollo Construction & granite inc did a great job with the project they did at my house. Full kitchen remodel . They demoed , and placed new everything plus the lovely granite counter tops they installed in my kitchen and kitchen island . Pollo construction was very clean & detailed when dem o & leaving everything clean. No mess & super clean with the granite . I 100% recommend if you want any type of remodleing& or granite construction. 10/10 with their work . "

vanesa r on August 2025


Avatar for Golden Shore Design and Build, Inc.

Golden Shore Design and Build, Inc.

5964 Mission Center Rd, Ste 602-979
5.00(
5
)
Approved Pro

Golden Shore Design and Build, Inc.

5964 Mission Center Rd, Ste 602-979
5.00(
5
)
Approved Pro
Customers say: Quick response
14 local quotes requested
25 years of experience

GOLDEN SHORE DESIGN AND BUILD 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!

"Out of all the companies I met with Golden ahore design and built were the best choice Highly recommend!!"

James H on February 2023

GOLDEN SHORE DESIGN AND BUILD 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!

"Out of all the companies I met with Golden ahore design and built were the best choice Highly recommend!!"

James H on February 2023


Avatar for Rock N Block - Turf N Hardscapes

Rock N Block - Turf N Hardscapes

282 Garfield Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Rock N Block - Turf N Hardscapes

282 Garfield Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1173 local quotes requested
11 years of experience

Rock N Block Landscape takes 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.

Rock N Block Landscape takes 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.

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FAQs for addition to existing structure building service projects in San Ysidro, 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 San Ysidro, 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.