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Addition to existing structure builders in Redwood City

Avatar for G M J Construction Inc.

G M J Construction Inc.

2582 Amethyst Drive
5.00(
13
)
•Approved Pro

G M J Construction Inc.

2582 Amethyst Drive
5.00(
13
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
11 years of experience

GMJ construction Is one of the best construction company in the bay area, we focus on providing our customers A Great experience, we provide high-quality project management and excellent finish Work, We are design and build firm,We specialize in new construction home, room addition, kitchen, bathroom and custom work , Feel free to contact us today for a free consultation meeting with one of our great project managers

"GMJ is the perfect spot if you are after an outstanding Eichler home. Joseph communication skills are top-notch, and he understood my needs perfectly. They have incredibly creative and brilliant minds and really grasp what the customer desires. Thanks a bunch, Joseph, for all your assistance! I highly recommend this company to anyone in search of the best Eichler Contractor in Sunnyvale!"

Mike K on May 2024

GMJ construction Is one of the best construction company in the bay area, we focus on providing our customers A Great experience, we provide high-quality project management and excellent finish Work, We are design and build firm,We specialize in new construction home, room addition, kitchen, bathroom and custom work , Feel free to contact us today for a free consultation meeting with one of our great project managers

"GMJ is the perfect spot if you are after an outstanding Eichler home. Joseph communication skills are top-notch, and he understood my needs perfectly. They have incredibly creative and brilliant minds and really grasp what the customer desires. Thanks a bunch, Joseph, for all your assistance! I highly recommend this company to anyone in search of the best Eichler Contractor in Sunnyvale!"

Mike K on May 2024

Avatar for Square Three, Inc.

Square Three, Inc.

830 Stewart Dr #272
4.92(
6
)
•Approved Pro

Square Three, Inc.

830 Stewart Dr #272
4.92(
6
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 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. Our senior team has 10-20 years of experience specifically in the SF Bay Area. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Sanjeev has a solid team working for him that is very capable and deliver quality work. Very flexible and always trying to accommodate our needs even with unexpected changes to the project plan. Highly recommended."

Jannik O on April 2022

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. Our senior team has 10-20 years of experience specifically in the SF Bay Area. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Sanjeev has a solid team working for him that is very capable and deliver quality work. Very flexible and always trying to accommodate our needs even with unexpected changes to the project plan. Highly recommended."

Jannik O on April 2022

Universal Construction Company

161 Martin Place
4.71(
7
)
•Approved Pro

Universal Construction Company

161 Martin Place
4.71(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 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 and home improvement services that are customizable to each individual project. We specialize in additions and bathroom 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 guarantee your satisfaction!

"He is very good, communicates well, and he is there when he says he will be and very thorough! I liked doing business with him! He explains everything that he will do before he does the job and he listens to my suggestions."

Marilyn B on June 2019

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 and home improvement services that are customizable to each individual project. We specialize in additions and bathroom 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 guarantee your satisfaction!

"He is very good, communicates well, and he is there when he says he will be and very thorough! I liked doing business with him! He explains everything that he will do before he does the job and he listens to my suggestions."

Marilyn B on June 2019

RSB Construction Group Inc.

58 W Portal Ave, Unit 150
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

RSB Construction Group Inc.

58 W Portal Ave, Unit 150
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
4 years of experience
Free onsite estimate

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!

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!

Avatar for Silicon Valley Remodeling

Silicon Valley Remodeling

4653 Norwalk Drive, Unit 103
5.00(
8
)
•Approved Pro

Silicon Valley Remodeling

4653 Norwalk Drive, Unit 103
5.00(
8
)
•Approved Pro
Customers say: Quick response
40 local quotes requested
15 years of experience

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction. Please visit our website for more information and videos on our services: http://wholehouseremodeling.com

"They were very professional, reliable and finished on time. He was flexible . I could trust him in my house, he is honest and my kitchen is beautiful."

Gina P on January 2022

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction. Please visit our website for more information and videos on our services: http://wholehouseremodeling.com

"They were very professional, reliable and finished on time. He was flexible . I could trust him in my house, he is honest and my kitchen is beautiful."

Gina P on January 2022

Ashbury General Contracting and Engineering

40 12th Street
4.50(
2
)
•Approved Pro

Ashbury General Contracting and Engineering

40 12th Street
4.50(
2
)
•Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

Mon-Fri 7a-5pm Fully integrated company. All work is done in-house by employees not sub-contractors. 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 forwards to earning your business! Book with us online or feel free to give us a call today!

"Great work for a great price."

Paul H on March 2023

Mon-Fri 7a-5pm Fully integrated company. All work is done in-house by employees not sub-contractors. 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 forwards to earning your business! Book with us online or feel free to give us a call today!

"Great work for a great price."

Paul H on March 2023

Avatar for Aria Custom Home Builder

Aria Custom Home Builder

6376 Mayo Drive
5.00(
2
)
•Approved Pro

Aria Custom Home Builder

6376 Mayo Drive
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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.

"They responded in a timely manner and were able to get the job done quickly to the date we asked with great expertise work. We were very satisfied and will use them again for another project."

Sheri A on October 2019

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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.

"They responded in a timely manner and were able to get the job done quickly to the date we asked with great expertise work. We were very satisfied and will use them again for another project."

Sheri A on October 2019

Avatar for ICON Home Builders, Inc.

ICON Home Builders, Inc.

2375 Zanker Rd, Suite 225
5.00(
2
)
•Approved Pro

ICON Home Builders, Inc.

2375 Zanker Rd, Suite 225
5.00(
2
)
•Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

ICON Home Builders is a full-service general contractor specializing in high-quality home remodels, renovations, and custom builds in the San Francisco Bay Area. We transform homes with custom kitchens, luxurious bathrooms, full renovations, and home additions, combining expert craftsmanship and personalized design. Known for our attention to detail, clear communication, and efficient project management, we ensure your home reflects your vision. We serve Santa Clara, San Mateo, Alameda, and Contra Costa counties, and are EPA Lead-Safe Certified and CSLB Licensed (#1102095). Whether you're looking for a complete home transformation or a specific remodel, ICON Home Builders delivers on time and within budget, ensuring the highest standards in every project.

"Danny's expertise shone through from our very first meeting, where he presented an impressive initial design that immediately instilled confidence in the project's outcome. His meticulous planning and efficient execution made the process nearly effortless for me. Throughout the project, Danny demonstrated exceptional professionalism: He patiently addressed all my questions, ensuring I felt informed and comfortable with each decision. He took charge of the shopping process, offering valuable professional advice on material selections. When the initially chosen tile color didn't translate well from the store to my home, Danny proactively brought a sample for us to evaluate in situ. This attention to detail allowed us to pivot and select a more suitable option that enhanced the overall aesthetic. The final result exceeded my expectations, with Danny's design acumen particularly evident in the enlarged shower space. His thoughtful approach to space utilization has significantly improved the functionality and appeal of the room. Danny's combination of design talent, project management skills, and client-focused service resulted in a fantastic outcome that I'm thrilled with"

Yu Z on September 2024

ICON Home Builders is a full-service general contractor specializing in high-quality home remodels, renovations, and custom builds in the San Francisco Bay Area. We transform homes with custom kitchens, luxurious bathrooms, full renovations, and home additions, combining expert craftsmanship and personalized design. Known for our attention to detail, clear communication, and efficient project management, we ensure your home reflects your vision. We serve Santa Clara, San Mateo, Alameda, and Contra Costa counties, and are EPA Lead-Safe Certified and CSLB Licensed (#1102095). Whether you're looking for a complete home transformation or a specific remodel, ICON Home Builders delivers on time and within budget, ensuring the highest standards in every project.

"Danny's expertise shone through from our very first meeting, where he presented an impressive initial design that immediately instilled confidence in the project's outcome. His meticulous planning and efficient execution made the process nearly effortless for me. Throughout the project, Danny demonstrated exceptional professionalism: He patiently addressed all my questions, ensuring I felt informed and comfortable with each decision. He took charge of the shopping process, offering valuable professional advice on material selections. When the initially chosen tile color didn't translate well from the store to my home, Danny proactively brought a sample for us to evaluate in situ. This attention to detail allowed us to pivot and select a more suitable option that enhanced the overall aesthetic. The final result exceeded my expectations, with Danny's design acumen particularly evident in the enlarged shower space. His thoughtful approach to space utilization has significantly improved the functionality and appeal of the room. Danny's combination of design talent, project management skills, and client-focused service resulted in a fantastic outcome that I'm thrilled with"

Yu Z on September 2024

Avatar for Springs Construction Corporation

Springs Construction Corporation

881 Hurlingame Ave
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Springs Construction Corporation

881 Hurlingame Ave
New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
66 years of experience
Free onsite estimate

Since 1959, Springs Construction has built its reputation on fine craftsmanship, technical expertise and solid project management.We take a proactive, client driven approach to every one of our projects, exceeding our customers vision for their homes. We want you to feel comfortable and safe during the disruption and enjoy your home for years to come.

Since 1959, Springs Construction has built its reputation on fine craftsmanship, technical expertise and solid project management.We take a proactive, client driven approach to every one of our projects, exceeding our customers vision for their homes. We want you to feel comfortable and safe during the disruption and enjoy your home for years to come.

Avatar for Visualized Precision Construction

Visualized Precision Construction

751 Laurel Street Unit 306
5.00(
1
)
•Approved Pro

Visualized Precision Construction

751 Laurel Street Unit 306
5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

At Visualized Precision we can work with you to renovate your entire home or just help you update a kitchen and bathroom into something you love. We also specialize in finish carpentry, cabinet installation and drywall.

"They did a tremendous job! Rebecca is on top of everything, Josh is very communicative, and great people to work with! My experience with them was tremendous!"

Anthony M on February 2020

At Visualized Precision we can work with you to renovate your entire home or just help you update a kitchen and bathroom into something you love. We also specialize in finish carpentry, cabinet installation and drywall.

"They did a tremendous job! Rebecca is on top of everything, Josh is very communicative, and great people to work with! My experience with them was tremendous!"

Anthony M on February 2020

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FAQs for addition to existing structure building service projects in Redwood City, 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 Redwood City, 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
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    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.