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Find Addition to existing structure builders in El Cajon

Dryfix Services, Inc.

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Dryfix Services, Inc.

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 Remcon Design Build

Remcon Design Build

5.00(
1
)
•Approved Pro

Remcon Design Build

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 Cabal Construction

Cabal Construction

5.00(
10
)
•Approved Pro

Cabal Construction

5.00(
10
)
•Approved Pro
Customers say: Quick response
3 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.

"I hired Emmanuel 2 years ago for a major remodel of my townhome. The remodel went well and I was very happy with the results. Emmanuel was great to work with, very detailed in his estimate, and very businesslike when I requested changes. I am coming back 2 years later to write this because I did have a problem with some of the tile work. After 2 years, I sent Emmanuel a message with my concern. He immediately sent out a tile technician. He covered the costs of the repair, including procuring additional tile. His technician, Manuel, was extremely competent and kept me apprised every step of the way. When rating a business, I think the ability to overcome an issue is one of the keys one should look for. Manny went above and beyond, and I couldn't be happier."

Molly H on August 2024

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.

"I hired Emmanuel 2 years ago for a major remodel of my townhome. The remodel went well and I was very happy with the results. Emmanuel was great to work with, very detailed in his estimate, and very businesslike when I requested changes. I am coming back 2 years later to write this because I did have a problem with some of the tile work. After 2 years, I sent Emmanuel a message with my concern. He immediately sent out a tile technician. He covered the costs of the repair, including procuring additional tile. His technician, Manuel, was extremely competent and kept me apprised every step of the way. When rating a business, I think the ability to overcome an issue is one of the keys one should look for. Manny went above and beyond, and I couldn't be happier."

Molly H on August 2024

Avatar for SL United Construction, Inc.

SL United Construction, Inc.

5.00(
4
)
•Approved Pro

SL United Construction, Inc.

5.00(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Welcome to SL United Construction, Inc. We proudly provide the highest quality of service and craftsmanship to each and every aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the top priority. We eagerly look forward to working with you to bring your vision to reality. Give us a call today and lets get started!

"SL United Construction did a superb job on our basement remodel, and outdoor deck rebuild. They also coordinated a beautiful new driveway for us. They are honest, knowledgeable, responsive, and flexible. All this at a very reasonable cost! Highest recommendation!"

Gerard M on November 2019

Welcome to SL United Construction, Inc. We proudly provide the highest quality of service and craftsmanship to each and every aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the top priority. We eagerly look forward to working with you to bring your vision to reality. Give us a call today and lets get started!

"SL United Construction did a superb job on our basement remodel, and outdoor deck rebuild. They also coordinated a beautiful new driveway for us. They are honest, knowledgeable, responsive, and flexible. All this at a very reasonable cost! Highest recommendation!"

Gerard M on November 2019

Active Endeavor, Inc.

5.00(
3
)
•Approved Pro

Active Endeavor, Inc.

5.00(
3
)
•Approved Pro
Customers say: Quick response
14 years of experience
Free onsite estimate

A E 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. Rated A+ by the BBB, timely communication 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.

"Dirk was a consummate professional. His work was completed on time and under my budget as he worked to save us money rather than trying to upsell at every opportunity. His crew were very skilled and friendly. I will utilize them in the future on another project and would recommend him to anyone looking for construction done on their house"

Rusty D on August 2024

A E 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. Rated A+ by the BBB, timely communication 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.

"Dirk was a consummate professional. His work was completed on time and under my budget as he worked to save us money rather than trying to upsell at every opportunity. His crew were very skilled and friendly. I will utilize them in the future on another project and would recommend him to anyone looking for construction done on their house"

Rusty D on August 2024

Avatar for US PACIFICA BUILDERS

US PACIFICA BUILDERS

5.00(
12
)
•Approved Pro

US PACIFICA BUILDERS

5.00(
12
)
•Approved Pro
38 local quotes requested
1 years of experience

20+ Years of Experience 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.

"Service between owner, contractor and myself was first class. They had great, experienced workers who did a great job. I am very happy with the end result. "

Dolores F on October 2025

20+ Years of Experience 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.

"Service between owner, contractor and myself was first class. They had great, experienced workers who did a great job. I am very happy with the end result. "

Dolores F on October 2025

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
6 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 MVP Leaders, Inc.

MVP Leaders, Inc.

4.29(
7
)
•Approved Pro

MVP Leaders, Inc.

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 BE HOME REMODELING INC

BE HOME REMODELING INC

4.95(
11
)
•Approved Pro

BE HOME REMODELING INC

4.95(
11
)
•Approved Pro
Customers say: Quick response
625 local quotes requested
1 years of experience

Be Home Remodeling is a home improvement company dedicated to transforming spaces with quality craftsmanship and personalized service. We specialize in a range of remodeling projects, from kitchens and bathrooms to full home renovations, back yard remodeling and more. Our team of experienced professionals collaborates closely with clients to understand their vision and bring it to life, ensuring each project reflects their style and meets their needs. Whether you're looking to update a single room or undertake a complete overhaul, Be Home Remodeling is here to make your dream home a reality.

"My journey began when I met Mario from Be Home Remodeling. I started with just one bathroom remodel, and I was immediately impressed by the professionalism, attention to detail, and high-quality craftsmanship he and his team delivered. The communication throughout the project was clear and consistent, and they made sure every step met my expectations. Since then, I?ve trusted Be Home Remodeling with additional projects and have always been more than satisfied with the results. Highly recommend Mario and his team to anyone looking for reliable and high-quality construction work"

nate b on July 2025

Be Home Remodeling is a home improvement company dedicated to transforming spaces with quality craftsmanship and personalized service. We specialize in a range of remodeling projects, from kitchens and bathrooms to full home renovations, back yard remodeling and more. Our team of experienced professionals collaborates closely with clients to understand their vision and bring it to life, ensuring each project reflects their style and meets their needs. Whether you're looking to update a single room or undertake a complete overhaul, Be Home Remodeling is here to make your dream home a reality.

"My journey began when I met Mario from Be Home Remodeling. I started with just one bathroom remodel, and I was immediately impressed by the professionalism, attention to detail, and high-quality craftsmanship he and his team delivered. The communication throughout the project was clear and consistent, and they made sure every step met my expectations. Since then, I?ve trusted Be Home Remodeling with additional projects and have always been more than satisfied with the results. Highly recommend Mario and his team to anyone looking for reliable and high-quality construction work"

nate b on July 2025

Pen & Mason Construction, Inc.

5.00(
4
)
•Approved Pro

Pen & Mason Construction, Inc.

5.00(
4
)
•Approved Pro
19 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

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FAQs for addition to existing structure building service projects in El Cajon, 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 El Cajon, 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.

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