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Addition to existing structure builders in Monrovia

Avatar for Socal Express Restoration and Construction Inc.
Socal Express Restoration and Construction Inc.
6860 Canby Avenue, Suite 114
New on HomeAdvisorNew on Angi
Approved Pro
Socal Express Restoration and Construction Inc.
6860 Canby Avenue, Suite 114
New on AngiNew 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


YOR Construction and Investments, Inc.
12135 Miranda St
5.00(
1
)
Approved Pro
YOR Construction and Investments, Inc.
12135 Miranda St
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

YOR Construction and Investments, 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 is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Excellent customer service and great job done!"

J M on April 2021

YOR Construction and Investments, 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 is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Excellent customer service and great job done!"

J M on April 2021


Avatar for Golan Remodeling, Inc.
Golan Remodeling, Inc.
20723 Chase Street
4.85(
17
)
Approved Pro
Golan Remodeling, Inc.
20723 Chase Street
4.85(
17
)
Approved Pro
Customers say: Quality work
20 years of experience
Free onsite estimate

Golan Remodeling, Inc. is one of the state's premier home improvement companies servicing the Los Angeles and Ventura Counties. We specialize in complete bathroom and kitchen detailed remodeling. We are committed to provide all of our customers with reasonable pricing, quality workmanship, and professional service. We are extremely professional and regardless of how big or small the project may be we always take pride in our company name and our work. For all of your home improvement needs Golan Remodeling, Inc. is above and beyond the rest.

"Golan Remodeling just finished a bathroom remodel for us, and we?re beyond impressed.The project manager was fantastic. He walked us through every step and made sure we were happy with the progress. The tile work and fixtures they installed are beautiful, and the whole bathroom feels like a spa now. The team was professional, clean, and respectful of our home. They are the best in Los Angeles. I?d give them 10 stars if I could!"

Mike C on March 2025

Golan Remodeling, Inc. is one of the state's premier home improvement companies servicing the Los Angeles and Ventura Counties. We specialize in complete bathroom and kitchen detailed remodeling. We are committed to provide all of our customers with reasonable pricing, quality workmanship, and professional service. We are extremely professional and regardless of how big or small the project may be we always take pride in our company name and our work. For all of your home improvement needs Golan Remodeling, Inc. is above and beyond the rest.

"Golan Remodeling just finished a bathroom remodel for us, and we?re beyond impressed.The project manager was fantastic. He walked us through every step and made sure we were happy with the progress. The tile work and fixtures they installed are beautiful, and the whole bathroom feels like a spa now. The team was professional, clean, and respectful of our home. They are the best in Los Angeles. I?d give them 10 stars if I could!"

Mike C on March 2025


DAM Ventures, Inc.
28851 Industry Drive
4.33(
87
)
Approved Pro
DAM Ventures, Inc.
28851 Industry Drive
4.33(
87
)
Approved Pro
Customers say: Quality work
10 local quotes requested
9 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Very good customer service."

jay l on January 2022

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Very good customer service."

jay l on January 2022


Avatar for B Cutler Inc
B Cutler Inc
5040 Kimball Street
5.00(
2
)
Approved Pro
B Cutler Inc
5040 Kimball Street
5.00(
2
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

Licensed & Bonded Contractor Specializing In Fire, Water, & Mold Damage Remediation & Restoration. Accessory Dwelling Units (ADUs) & residential & commercial additions. Veteran Owned Small Business With 45+ Years Of Family Experience As Pasadena Based Designers & Builders

"There was mold in my closet and I knew it was probably not a great idea to live with it. Chris Gibbons gave me clear and useful information about the options and trade-offs and broke through the noise. Seems like the other "experts" and insurance people I talked to were just adding confusion. Recommend Paul Davis Pasadena highly if you have mold."

Leonard M on July 2023

Licensed & Bonded Contractor Specializing In Fire, Water, & Mold Damage Remediation & Restoration. Accessory Dwelling Units (ADUs) & residential & commercial additions. Veteran Owned Small Business With 45+ Years Of Family Experience As Pasadena Based Designers & Builders

"There was mold in my closet and I knew it was probably not a great idea to live with it. Chris Gibbons gave me clear and useful information about the options and trade-offs and broke through the noise. Seems like the other "experts" and insurance people I talked to were just adding confusion. Recommend Paul Davis Pasadena highly if you have mold."

Leonard M on July 2023


RET Construction Corp
8035 Linwalt Street
4.98(
23
)
Approved Pro
RET Construction Corp
8035 Linwalt Street
4.98(
23
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
21 years of experience

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Kevin brought our dream ADU to life! He is an amazing contractor who pays great attention to detail and he has several licenses which insured his work was of the highest quality. He REALLY listens to what the customer wants and he delivers! We are SO pleased with our new ADU and we offer him our highest recommendation!"

gabriella p on September 2022

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Kevin brought our dream ADU to life! He is an amazing contractor who pays great attention to detail and he has several licenses which insured his work was of the highest quality. He REALLY listens to what the customer wants and he delivers! We are SO pleased with our new ADU and we offer him our highest recommendation!"

gabriella p on September 2022


Avatar for Embee & Associates, Inc.
Embee & Associates, Inc.
8010 Haven Avenue
4.50(
4
)
Approved Pro
Embee & Associates, Inc.
8010 Haven Avenue
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 Trig Builders, Inc.
Trig Builders, Inc.
6442 Coldwater Canyon Unit #111
4.63(
8
)
Approved Pro
Trig Builders, Inc.
6442 Coldwater Canyon Unit #111
4.63(
8
)
Approved Pro
Customers say: Terrific value
21 years of experience
Free onsite estimate

We’re a locally owned and operated company with over 20 years of construction experience. We value honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in concrete/remodel work and a variety of related service and repair 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 with our clients and guarantee your satisfaction!

"Their attention to detail, customer service, and quality of work were all top-notch. I would highly recommend this company for anyone looking to remodel their bathroom."

Clayton C on March 2023

We’re a locally owned and operated company with over 20 years of construction experience. We value honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in concrete/remodel work and a variety of related service and repair 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 with our clients and guarantee your satisfaction!

"Their attention to detail, customer service, and quality of work were all top-notch. I would highly recommend this company for anyone looking to remodel their bathroom."

Clayton C on March 2023


Avatar for California Builders & Design, Inc.
California Builders & Design, Inc.
31419 Outer Highway 10 S, Unit 1-1101
4.88(
13
)
Approved Pro
California Builders & Design, Inc.
31419 Outer Highway 10 S, Unit 1-1101
4.88(
13
)
Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

Christopher K. Hamilton Contractor, and Shannon Hamilton Designer; offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Working with Chris was a dream. He was very professional had the bid to me right away, got the job done right on time. I would definitely use California builders again to have any home rrenovations done. I have recommended California home builders to many of my friends."

Debbie S on April 2025

Christopher K. Hamilton Contractor, and Shannon Hamilton Designer; offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Working with Chris was a dream. He was very professional had the bid to me right away, got the job done right on time. I would definitely use California builders again to have any home rrenovations done. I have recommended California home builders to many of my friends."

Debbie S on April 2025


Avatar for Flat Rate Remodeling, Inc.
Flat Rate Remodeling, Inc.
26500 Agoura Rd
4.47(
32
)
Approved Pro
Flat Rate Remodeling, Inc.
26500 Agoura Rd
4.47(
32
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
136 local quotes requested

At Flat Rate Remodeling we pride ourselves on attention to detail and Customer Support. We ensure each client's specific needs are met and take care to provide 100% Satisfaction when we complete a project . Call in to speak to one of our friendly staff advisors today, they'll help you schedule an appointment! From design to demolition to final details, you won't be disappointed!

"Great service and responsible price. I highly recommended."

George E on December 2024

At Flat Rate Remodeling we pride ourselves on attention to detail and Customer Support. We ensure each client's specific needs are met and take care to provide 100% Satisfaction when we complete a project . Call in to speak to one of our friendly staff advisors today, they'll help you schedule an appointment! From design to demolition to final details, you won't be disappointed!

"Great service and responsible price. I highly recommended."

George E on December 2024

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FAQs for addition to existing structure building service projects in Monrovia, CA

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

An in-law suite is a self-contained living space attached to—or detached from—your main home. Expect a bedroom, full bath, and a kitchenette or compact living area. The setup gives relatives privacy, doubles as a potential rental, and can lift your property value. To qualify as a legal dwelling, the suite must meet local building codes and zoning rules.

The Monrovia, 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.
BRIGHT OPEN ATTIC SPACE
Jun 10, 2025
Jun 10, 2025
An in-law suite is a great solution for people who have family visiting often. Explore how much an in-law suite costs and prep to build yours.
white and gray kitchen with butchers block countertop
Apr 8, 2025
Apr 8, 2025
Looking to enhance the warmth and utility of your kitchen? Explore how much a butcher block countertop costs and start your budget here.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Share project details to get started.