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Find Addition to existing structure builders in Riverside

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
14 years of experience

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 So Cal Builders & Design Inc

So Cal Builders & Design Inc

4.73(
193
)
•Approved Pro

So Cal Builders & Design Inc

4.73(
193
)
•Approved Pro
Super Service Award
Customers say: True professional
44 years of experience
Free onsite estimate

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.

"So Cal Builders & Design Inc did an amazing job as our general contractor for major home repairs. They fixed structural issues, updated our kitchen, and repaired damaged flooring with great attention to detail. The team was professional, communicative, and finished on time. The quality exceeded our expectations, and we felt supported throughout the whole process. Highly recommend them for any major home repair project!"

Oliver G B on March 2026

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.

"So Cal Builders & Design Inc did an amazing job as our general contractor for major home repairs. They fixed structural issues, updated our kitchen, and repaired damaged flooring with great attention to detail. The team was professional, communicative, and finished on time. The quality exceeded our expectations, and we felt supported throughout the whole process. Highly recommend them for any major home repair project!"

Oliver G B on March 2026

Avatar for JBI General Construction & Renovations

JBI General Construction & Renovations

4.94(
33
)
•Approved Pro

JBI General Construction & Renovations

4.94(
33
)
•Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
9 years of experience

We are the premier general contractors of San Bernadino and Riverside counties. We specialize in interior remodels. We have 20 years of experience in the industry, and are fully prepared for all aspects of your home renovation. Give us a call today, we look forward to working with you!

"JBI did a great job with additional lighting in my bathrooms. It was done professionally. Jose’s and his helper were puntual and friendly. Once the job was completed, they meticulously cleaned the debris leaving the area the same way found before the job. I really appreciated. The attention to detail and I will definitely call him back on my next project. "

Linda G on April 2025

We are the premier general contractors of San Bernadino and Riverside counties. We specialize in interior remodels. We have 20 years of experience in the industry, and are fully prepared for all aspects of your home renovation. Give us a call today, we look forward to working with you!

"JBI did a great job with additional lighting in my bathrooms. It was done professionally. Jose’s and his helper were puntual and friendly. Once the job was completed, they meticulously cleaned the debris leaving the area the same way found before the job. I really appreciated. The attention to detail and I will definitely call him back on my next project. "

Linda G on April 2025

Supreme Remodeling Inc

4.77(
315
)
•Approved Pro

Supreme Remodeling Inc

4.77(
315
)
•Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
26 years of experience

Supreme Remodeling, Inc., will masterfully build from your new construction dream to meet the specifications for your exquisite new construction reality. Licensed, bonded, and insured, please visit supremeremodelinginc.com galleries for great examples in exquisitely realized new construction. Building a safe and responsible structure from the instructions of a well conceived design that has incorporated your needs and wants while conveying your story artfully demands Supreme Remodeling, Inc.?s team of craftsmen that awaken with passion for their craft and care about your project?s success. You will notice your goals are our focus from the first moment you meet us. A business built over decades of hard work and passion for ethical construction is the core of our story. We look forward with pleasure?creating and building your new construction masterpiece that runneth over with fond memories?your space of luxurious function and glorious fulfillment enhanced by your story.

"We did a 3 room kitchen and bath remodel in just under 3 months, and we are over the moon with how well everything came out! Micky and his team are simply superb — every team he brought in did top notch work, including tiles, flooring, plumbing, electrical, countertop, cabinets, glass, stucco, windows, drywall, and more. Micky coordinated everything to perfection, ensuring the project was progressing day to day, sometimes hour by hour. The only “negative” was that we had to work hard to keep up with their impressive pace (in terms of making decisions and ordering needed supplies) and it was well worth it! We are now starting an ADU conversion and we can’t wait for the results."

Gerald C on July 2025

Supreme Remodeling, Inc., will masterfully build from your new construction dream to meet the specifications for your exquisite new construction reality. Licensed, bonded, and insured, please visit supremeremodelinginc.com galleries for great examples in exquisitely realized new construction. Building a safe and responsible structure from the instructions of a well conceived design that has incorporated your needs and wants while conveying your story artfully demands Supreme Remodeling, Inc.?s team of craftsmen that awaken with passion for their craft and care about your project?s success. You will notice your goals are our focus from the first moment you meet us. A business built over decades of hard work and passion for ethical construction is the core of our story. We look forward with pleasure?creating and building your new construction masterpiece that runneth over with fond memories?your space of luxurious function and glorious fulfillment enhanced by your story.

"We did a 3 room kitchen and bath remodel in just under 3 months, and we are over the moon with how well everything came out! Micky and his team are simply superb — every team he brought in did top notch work, including tiles, flooring, plumbing, electrical, countertop, cabinets, glass, stucco, windows, drywall, and more. Micky coordinated everything to perfection, ensuring the project was progressing day to day, sometimes hour by hour. The only “negative” was that we had to work hard to keep up with their impressive pace (in terms of making decisions and ordering needed supplies) and it was well worth it! We are now starting an ADU conversion and we can’t wait for the results."

Gerald C on July 2025

Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

4.88(
38
)
•Approved Pro

Prosper Construction Development, Inc.

4.88(
38
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 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 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!

"Fast response and clear communication throughout the process."

Marco T on April 2025

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 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!

"Fast response and clear communication throughout the process."

Marco T on April 2025

Avatar for WeBuild Home Efficient

WeBuild Home Efficient

5.00(
15
)
•Approved Pro

WeBuild Home Efficient

5.00(
15
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Bonded & licensed and insured, we are a family-owned business that specialize in remodeling, renovation and new construction. From A-Z - we do it all! Roofing, Kitchen & Bath remodeling, Landscape, Additions, Solar panels, and more! Delivering quality and customer service to your satisfaction, and we won?t leave until the job is done right and most important - on time ! Schedule your free estimate today to turn your dream project into reality, hustle-free.

"Bar and the WeBuild Efficient team did a great job installing pavers on my driveway and fixing my wooden steps and garage. He was very professional and responsive. I would recommend them, highly."

James T on February 2024

Bonded & licensed and insured, we are a family-owned business that specialize in remodeling, renovation and new construction. From A-Z - we do it all! Roofing, Kitchen & Bath remodeling, Landscape, Additions, Solar panels, and more! Delivering quality and customer service to your satisfaction, and we won?t leave until the job is done right and most important - on time ! Schedule your free estimate today to turn your dream project into reality, hustle-free.

"Bar and the WeBuild Efficient team did a great job installing pavers on my driveway and fixing my wooden steps and garage. He was very professional and responsive. I would recommend them, highly."

James T on February 2024

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
38 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

Avatar for McCormick Home Builders, Inc.

McCormick Home Builders, Inc.

4.31(
21
)
•Approved Pro

McCormick Home Builders, Inc.

4.31(
21
)
•Approved Pro
Customers say: True professional
9 years of experience
Free onsite estimate

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. 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 guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. 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 guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

Avatar for McGee Construction

McGee Construction

4.92(
12
)
•Approved Pro

McGee Construction

4.92(
12
)
•Approved Pro
Super Service Award
Customers say: True professional
36 years of experience
Free onsite estimate

Our building expertise includes not only remodeling of existing homes, but new custom home construction, multifamily housing, tenant improvements, commercial and industrial office buildings. Our professional staff has the experience necessary to give you the confidence to start your next project today.

"I needed two exterior door jambs repaired on a historical home in Santa Ana. The bottom of the jambs, where they met the thresholds, were rotted and decayed. Additionally, there was possible damage to the bottom plate, trimmers, and king studs. I contacted McGee construction for the estimate. The estimate was more than fair so I accepted. Eric, the finish carpenter, came out and completed the repairs. He draped the room with plastic to protect the furniture, floors, and rest of the house. The repairs took three days and look fantastic. He was able to match up the new jambs to the existing arch doorways and thresholds. He recreated new casings to match the old door casings. Eric rehung the doors and the doors now open and close beautifully. Additionally, the new paint and stain matches the original. Good communication with the company, I was kept informed of the repairs, and they cleaned the job site everyday. i would hire them again without a doubt."

John G on January 2026

Our building expertise includes not only remodeling of existing homes, but new custom home construction, multifamily housing, tenant improvements, commercial and industrial office buildings. Our professional staff has the experience necessary to give you the confidence to start your next project today.

"I needed two exterior door jambs repaired on a historical home in Santa Ana. The bottom of the jambs, where they met the thresholds, were rotted and decayed. Additionally, there was possible damage to the bottom plate, trimmers, and king studs. I contacted McGee construction for the estimate. The estimate was more than fair so I accepted. Eric, the finish carpenter, came out and completed the repairs. He draped the room with plastic to protect the furniture, floors, and rest of the house. The repairs took three days and look fantastic. He was able to match up the new jambs to the existing arch doorways and thresholds. He recreated new casings to match the old door casings. Eric rehung the doors and the doors now open and close beautifully. Additionally, the new paint and stain matches the original. Good communication with the company, I was kept informed of the repairs, and they cleaned the job site everyday. i would hire them again without a doubt."

John G on January 2026

Avatar for CASSINI CONSTRUCTION

CASSINI CONSTRUCTION

5.00(
6
)
•Approved Pro

CASSINI CONSTRUCTION

5.00(
6
)
•Approved Pro
21 years of experience
Free onsite estimate

What began as a vision in 2011 has since evolved into more than just the standard construction company. We have exceeded far beyond not just our competitors, but the very limits of what construction can endure. At Cassini, our mission is to craft intelligent, elegant, and inspiring environments. Every material we choose, every detail we refine, all guided by a pursuit of permanence delivering beauty and longevity rarely seen today. 5 STARS on YELP AND GOOGLE

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

robert S on April 2025

What began as a vision in 2011 has since evolved into more than just the standard construction company. We have exceeded far beyond not just our competitors, but the very limits of what construction can endure. At Cassini, our mission is to craft intelligent, elegant, and inspiring environments. Every material we choose, every detail we refine, all guided by a pursuit of permanence delivering beauty and longevity rarely seen today. 5 STARS on YELP AND GOOGLE

"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 Riverside, 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 Riverside, 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