Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in San Marcos, 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.

Find Addition to existing structure builders in San Marcos

Avatar for I'll Handle IT

I'll Handle IT

4.76(
257
)
Approved Pro

I'll Handle IT

4.76(
257
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
109 local quotes requested

I started "I'll Handle It" to address what I recognized as a need that homeowners have for competent, knowledgeable and courteous home improvement service professionals to help them with all manner of projects large and small. Founded in San Diego, "I'll Handle It" is a home grown business that prides itself in its responsiveness to its customers needs. At "I'll Handle It" "Professional Service You Can Rely on" is our mantra, and we can prove it.

"Dave was great! The best communication and transparency I've seen in a long time. Dave explained what he needed to do to install the dryer vent and got right to work...NO wasted time. He installed the vent and made sure it was working properly. The vent looks great! Dave is knowledgable, professional, and a nice person. He also stayed in touch, letting me know how soon he would arrive and when he was on his way. I really appreciated that. We will definitely call him the next time we need a handyman."

Cheryl E on September 2025

I started "I'll Handle It" to address what I recognized as a need that homeowners have for competent, knowledgeable and courteous home improvement service professionals to help them with all manner of projects large and small. Founded in San Diego, "I'll Handle It" is a home grown business that prides itself in its responsiveness to its customers needs. At "I'll Handle It" "Professional Service You Can Rely on" is our mantra, and we can prove it.

"Dave was great! The best communication and transparency I've seen in a long time. Dave explained what he needed to do to install the dryer vent and got right to work...NO wasted time. He installed the vent and made sure it was working properly. The vent looks great! Dave is knowledgable, professional, and a nice person. He also stayed in touch, letting me know how soon he would arrive and when he was on his way. I really appreciated that. We will definitely call him the next time we need a handyman."

Cheryl E on September 2025


Avatar for Brian Thomas Consulting, Inc.

Brian Thomas Consulting, Inc.

4.00(
5
)
Approved Pro

Brian Thomas Consulting, Inc.

4.00(
5
)
Approved Pro
Customers say: Super punctual
17 years of experience
Free onsite estimate

Brian Thomas Consulting Inc. is a family owned and operated local builder that has been around 30+ years. We handle everything from bathroom remodels, room additions, ADUs, ground builds, and all trades in above ground construction.

"I hired Brian Thomas from February 2020 through March of 2020 and here are the reasons why I do not recommend using this company: 1. The contract I signed with them was for one year, 12 months, of SWPPP inspections, for which they quoted me $13,390. After less than 2 months worth of work, when I had to end the contract, they had already billed me $14,422.61. 2. Part of those charges included a $1,119.34 charge for “material markup”. They had stated that the materials they were going to provide, for erosion control, were going to be supplied at cost. When asked about this “markup” charge they stated “we charge a 15% mark up on materials”, because “ordering your materials puts a potential burden on the company”. So that is what this company means when they say “at cost”. 3. When Brian Thomas first came to my site to start the work he stated that he was there on his own dime “to help”. On his final bill he included two charges totaling $595 for such visits. When asked about these charges their response was: “[Brian] did not state that he was consulting free of charge” and “if you hadn’t removed us from the project after just a month of being on it, Brian may have been willing to remove those charges”. So that is what this company mean when they say “we are here to help on our own dime”. 4. When asked about the $5,000 worth of inspections they performed in just over a month their response was to send some documents so that I could “educate yourself on what is required per your SWPPP”. The company I was using to perform such inspections, and who I re-hired after I terminated Brian Thomas’ contract, charges me $1,000 to perform the same inspections. In other words Brian Thomas charged me 5 times more than an average company does. Brian Thomas will use their “knowledge” of the requirements for these inspections to charge you as much as they possibly can even though the State does not require that many inspections. 5. My relationship with Brian Thomas started to fall apart when they started to push additional services on me. I’ve had a grading company doing most of the work for my grading project for over a year (and I am about 2/3 done with the project). First Brian Thomas suggested they had a crew of people that could install BMPs, something my grading company was already doing, and then they even suggested that I should fire the grading company I was using (because they were incompetent). Having the same company that performs inspections also perform the work needed to pass those inspections is a conflict of interest: you are essentially creating work for yourself. But that is how Brian Thomas works. 6. When managing a grading project there are 2 main inspections you need to perform: a SWPPP inspection and a grading inspection. Brian Thomas can only perform one of them: the SWPPP inspection. If you are planning on doing a grading project I recommend getting a company that can perform both inspections, like the one I am using, and not a company that can only perform one of them, like Brian Thomas. This was my experience with Brian Thomas. If you chose to use them for your project may you have a better experience."

Ivan D on May 2020

Brian Thomas Consulting Inc. is a family owned and operated local builder that has been around 30+ years. We handle everything from bathroom remodels, room additions, ADUs, ground builds, and all trades in above ground construction.

"I hired Brian Thomas from February 2020 through March of 2020 and here are the reasons why I do not recommend using this company: 1. The contract I signed with them was for one year, 12 months, of SWPPP inspections, for which they quoted me $13,390. After less than 2 months worth of work, when I had to end the contract, they had already billed me $14,422.61. 2. Part of those charges included a $1,119.34 charge for “material markup”. They had stated that the materials they were going to provide, for erosion control, were going to be supplied at cost. When asked about this “markup” charge they stated “we charge a 15% mark up on materials”, because “ordering your materials puts a potential burden on the company”. So that is what this company means when they say “at cost”. 3. When Brian Thomas first came to my site to start the work he stated that he was there on his own dime “to help”. On his final bill he included two charges totaling $595 for such visits. When asked about these charges their response was: “[Brian] did not state that he was consulting free of charge” and “if you hadn’t removed us from the project after just a month of being on it, Brian may have been willing to remove those charges”. So that is what this company mean when they say “we are here to help on our own dime”. 4. When asked about the $5,000 worth of inspections they performed in just over a month their response was to send some documents so that I could “educate yourself on what is required per your SWPPP”. The company I was using to perform such inspections, and who I re-hired after I terminated Brian Thomas’ contract, charges me $1,000 to perform the same inspections. In other words Brian Thomas charged me 5 times more than an average company does. Brian Thomas will use their “knowledge” of the requirements for these inspections to charge you as much as they possibly can even though the State does not require that many inspections. 5. My relationship with Brian Thomas started to fall apart when they started to push additional services on me. I’ve had a grading company doing most of the work for my grading project for over a year (and I am about 2/3 done with the project). First Brian Thomas suggested they had a crew of people that could install BMPs, something my grading company was already doing, and then they even suggested that I should fire the grading company I was using (because they were incompetent). Having the same company that performs inspections also perform the work needed to pass those inspections is a conflict of interest: you are essentially creating work for yourself. But that is how Brian Thomas works. 6. When managing a grading project there are 2 main inspections you need to perform: a SWPPP inspection and a grading inspection. Brian Thomas can only perform one of them: the SWPPP inspection. If you are planning on doing a grading project I recommend getting a company that can perform both inspections, like the one I am using, and not a company that can only perform one of them, like Brian Thomas. This was my experience with Brian Thomas. If you chose to use them for your project may you have a better experience."

Ivan D on May 2020


Avatar for Remcon Design Build

Remcon Design Build

5.00(
1
)
Approved Pro

Remcon Design Build

5.00(
1
)
Approved Pro
20 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 Elias Amparano Remodeling

Elias Amparano Remodeling

5.00(
2
)
Approved Pro

Elias Amparano Remodeling

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 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


Avatar for Preferred Remodelers

Preferred Remodelers

5.00(
8
)
Approved Pro

Preferred Remodelers

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 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 Beachside Builders

Beachside Builders

5.00(
10
)
Approved Pro

Beachside Builders

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

We are small family owned and operated San Diego based general construction company. We can handle everything from bathroom and kitchen remodels to decks, windows and doors. There is no job Beachside Builders can not handle. With over 14 years of experience in all the various trades and a passion to create, we opened up our own company.

"Wonderfull experience, very polite friendly, honest."

Gary S on August 2020

We are small family owned and operated San Diego based general construction company. We can handle everything from bathroom and kitchen remodels to decks, windows and doors. There is no job Beachside Builders can not handle. With over 14 years of experience in all the various trades and a passion to create, we opened up our own company.

"Wonderfull experience, very polite friendly, honest."

Gary S on August 2020


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
7 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
21 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 Socal Express Restoration and Construction Inc.

Socal Express Restoration and Construction Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Socal Express Restoration and Construction Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
6 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 BE HOME REMODELING INC

BE HOME REMODELING INC

4.96(
12
)
Approved Pro

BE HOME REMODELING INC

4.96(
12
)
Approved Pro
Super Service Award
Customers say: Quick response
514 local quotes requested
2 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.

"After they redid our counter tops and island, we had them paint out cabinets and build shelves up to the ceiling. The communication was on point this time and the results speak for themselves. Would definitely recommend them to anyone for any home project. "

Stephen A on December 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.

"After they redid our counter tops and island, we had them paint out cabinets and build shelves up to the ceiling. The communication was on point this time and the results speak for themselves. Would definitely recommend them to anyone for any home project. "

Stephen A on December 2025

...
Showing 1-10 of 1026
FAQs for addition to existing structure building service projects in San Marcos, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The San Marcos, 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.