Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Rancho Cucamonga, 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 Rancho Cucamonga

Avatar for VLP Design Build Inc

VLP Design Build Inc

5.00(
4
)
•Approved Pro

VLP Design Build Inc

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

Here at VLP Design Build, Quality is our Goal! We're a locally family owned and operated company that values honesty and integrity, and stands behind our work. Our services are customized to the individual project, paying close attention to the details of each project and keeping communication through each stage of the job. We look forward to building long-term relationships with our clients!

"The cabinets turned out exactly as we wanted and Victor was very communicative throughout the entire process. Everything was laid out very clearly upfront so there were no surprise costs."

Laura M on November 2023

Here at VLP Design Build, Quality is our Goal! We're a locally family owned and operated company that values honesty and integrity, and stands behind our work. Our services are customized to the individual project, paying close attention to the details of each project and keeping communication through each stage of the job. We look forward to building long-term relationships with our clients!

"The cabinets turned out exactly as we wanted and Victor was very communicative throughout the entire process. Everything was laid out very clearly upfront so there were no surprise costs."

Laura M on November 2023

Avatar for Embee & Associates, Inc.

Embee & Associates, Inc.

4.50(
4
)
•Approved Pro

Embee & Associates, Inc.

4.50(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

Here at Embee & Associates, Inc., we pride ourselves in a job well done. With an eye for detail, we will help your dreams become realities so please contact us today for a fast and friendly service that you will not be disappointed in!!

"Overall my experience with this company was great! The work that was done was really really good! Our contractor who assisted us was Jose. We added a living space and master bedroom to our home. The additions done look as if they were part of my house this whole time. Honestly it looks way better than I expected. The only reason I rated the company a 4.5 was because there was always some kind of miscommunication between our contractor and his workers. Don t get me wrong, things were always resolved, Jose was great at that. But my recommendation to is to make sure communication is #1. That way the customer is not confused or left wondering what will happen next. There was an issue with his floor guy though, he was rude and unprofessional. BUT the reason I am mentioning this is not to put down the company but let you know that we expressed concern for this issue and it was resolved professionally by Jose and it never became an issue again. The quality of work was top notch! His workers were all pretty cool guys and we always felt comfortable of who was coming into our home to do the work. I highly recommend this company for your next big project😊👍🏼"

Victoria V on February 2020

Here at Embee & Associates, Inc., we pride ourselves in a job well done. With an eye for detail, we will help your dreams become realities so please contact us today for a fast and friendly service that you will not be disappointed in!!

"Overall my experience with this company was great! The work that was done was really really good! Our contractor who assisted us was Jose. We added a living space and master bedroom to our home. The additions done look as if they were part of my house this whole time. Honestly it looks way better than I expected. The only reason I rated the company a 4.5 was because there was always some kind of miscommunication between our contractor and his workers. Don t get me wrong, things were always resolved, Jose was great at that. But my recommendation to is to make sure communication is #1. That way the customer is not confused or left wondering what will happen next. There was an issue with his floor guy though, he was rude and unprofessional. BUT the reason I am mentioning this is not to put down the company but let you know that we expressed concern for this issue and it was resolved professionally by Jose and it never became an issue again. The quality of work was top notch! His workers were all pretty cool guys and we always felt comfortable of who was coming into our home to do the work. I highly recommend this company for your next big project😊👍🏼"

Victoria V on February 2020

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
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 KN Remodeling & Supplies Inc

KN Remodeling & Supplies Inc

4.84(
38
)
•Approved Pro

KN Remodeling & Supplies Inc

4.84(
38
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
149 local quotes requested

Family owned and operated, KN remodeling is dedicated to the highest customer satisfaction, providing quality home improvement while giving you best value for your money. How? By meeting our goals of personal trust, professional management and quality workmanship in a timely manner. Thanks to a super team of planner and designers, we have what it takes to bring your project from concept to completion in a fashion that insures the in quality, durability and beauty.

"It went very well, thanks to Nathen and his workers. They cleaned up the trash everyday when they finished the work. The work was done in the time frame they gave me with no hold ups at any point. I already recommended to s friend of mine."

PETRA O on May 2021

Family owned and operated, KN remodeling is dedicated to the highest customer satisfaction, providing quality home improvement while giving you best value for your money. How? By meeting our goals of personal trust, professional management and quality workmanship in a timely manner. Thanks to a super team of planner and designers, we have what it takes to bring your project from concept to completion in a fashion that insures the in quality, durability and beauty.

"It went very well, thanks to Nathen and his workers. They cleaned up the trash everyday when they finished the work. The work was done in the time frame they gave me with no hold ups at any point. I already recommended to s friend of mine."

PETRA O on May 2021

Avatar for Balderas General Construction

Balderas General Construction

5.00(
3
)
•Approved Pro

Balderas General Construction

5.00(
3
)
•Approved Pro
20 years of experience
Free onsite estimate

Balderas General Construction is a trusted remodeling company dedicated to transforming homes and businesses with quality craftsmanship and attention to detail. Specializing in a wide range of renovation services—from kitchens and bathrooms to full interior and exterior makeovers—we deliver reliable, tailored solutions that bring your vision to life. With a strong focus on customer satisfaction, we make every project a smooth and successful experience.

"We hired Balderas General a construction for our bathroom remodel, and it was overall A positive and stress free experience. 100% re-hireable and recommended. "

Valerie R on September 2025

Balderas General Construction is a trusted remodeling company dedicated to transforming homes and businesses with quality craftsmanship and attention to detail. Specializing in a wide range of renovation services—from kitchens and bathrooms to full interior and exterior makeovers—we deliver reliable, tailored solutions that bring your vision to life. With a strong focus on customer satisfaction, we make every project a smooth and successful experience.

"We hired Balderas General a construction for our bathroom remodel, and it was overall A positive and stress free experience. 100% re-hireable and recommended. "

Valerie R on September 2025

Avatar for So Cal Builders & Design Inc

So Cal Builders & Design Inc

4.72(
187
)
•Approved Pro

So Cal Builders & Design Inc

4.72(
187
)
•Approved Pro
Customers say: True professional
883 local quotes requested
43 years of experience

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

Avatar for LGC Development

LGC Development

5.00(
6
)
•Approved Pro

LGC Development

5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 local quotes requested

Woman Owned Family Business established in 2017. Collective Construction has industry experience since the 1990's. We are customer oriented and provide All types of construction services, from Pre-Construction to full Additions or ADU's in custom layouts. We also pride ourselves with designing new kitchens, bathrooms and full renovations with special touches. We are authorized applicator for Green Products in Exterior Coating with Tex-Cote cool wall for unsurpassed outcome of color and look that maintains its beauty through all weather conditions.

"My husband and I are in our 70’s. All of the upgrades/construction in our house in over 26 years was done by my career-construction husband. But recently he hurt his back. We needed our guest bath prefab bathtub/shower removed and replaced with a NICE prefab WALK-IN shower handicapped out. Our 95-year old mom was coming for a 2-week visit. We only had 3 weeks notice. Ani Kevorkian, owner of LGC Construction came to our house 1 day after I called. She listened, REALLY listened to what we wanted and understood the time constraint. She gave us a quote within hours and started the job within days. Her two gentlemen who came out were just awesome and cleaned everything up each day. Then Ani surprised us with “barn-door” glass shower doors that we didn’t even know we were getting. The shower is just beautiful! This company is exceptional. I have and will continue to tell our neighbors, people at our church, friends, etc. about LGC Construction! You can TRUST THEM!!!!"

Christine H on October 2024

Woman Owned Family Business established in 2017. Collective Construction has industry experience since the 1990's. We are customer oriented and provide All types of construction services, from Pre-Construction to full Additions or ADU's in custom layouts. We also pride ourselves with designing new kitchens, bathrooms and full renovations with special touches. We are authorized applicator for Green Products in Exterior Coating with Tex-Cote cool wall for unsurpassed outcome of color and look that maintains its beauty through all weather conditions.

"My husband and I are in our 70’s. All of the upgrades/construction in our house in over 26 years was done by my career-construction husband. But recently he hurt his back. We needed our guest bath prefab bathtub/shower removed and replaced with a NICE prefab WALK-IN shower handicapped out. Our 95-year old mom was coming for a 2-week visit. We only had 3 weeks notice. Ani Kevorkian, owner of LGC Construction came to our house 1 day after I called. She listened, REALLY listened to what we wanted and understood the time constraint. She gave us a quote within hours and started the job within days. Her two gentlemen who came out were just awesome and cleaned everything up each day. Then Ani surprised us with “barn-door” glass shower doors that we didn’t even know we were getting. The shower is just beautiful! This company is exceptional. I have and will continue to tell our neighbors, people at our church, friends, etc. about LGC Construction! You can TRUST THEM!!!!"

Christine H on October 2024

Avatar for Prime Construction Services, Inc.

Prime Construction Services, Inc.

5.00(
2
)
•Approved Pro

Prime Construction Services, Inc.

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

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

M & R Essential Contractors

New on HomeAdvisorNew 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.

4.95(
11
)
•Approved Pro

Jorcast Enterprises, Inc.

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

...
Showing 1-10 of 1034
FAQs for addition to existing structure building service projects in Rancho Cucamonga, 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 Rancho Cucamonga, 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.

See all articles