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Addition to existing structure builders in Sebastopol

Avatar for BCR Construction

BCR Construction

889 Jennings Ave
5.00(
1
)
Approved Pro

BCR Construction

889 Jennings Ave
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

BCR Construction, 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.

""

Stanley C on March 2022

BCR Construction, 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.

""

Stanley C on March 2022


Avatar for Tanoak Construction, LLC

Tanoak Construction, LLC

122 Calistoga Road, Unit 194
3.67(
3
)
Approved Pro

Tanoak Construction, LLC

122 Calistoga Road, Unit 194
3.67(
3
)
Approved Pro
Customers say: Quick response
8 years of experience
Free onsite estimate

I have more than 35 years' of residential, commercial and industrial experience and I pride my company on reliability, great communication, integrity, and quality work. I will do my best to keep you as educated as we can on your particular project. I look forward to earning your business!

"We recently had our bathroom remodeled by Tanoak Construction and we are extremely satisfied with the quality of workmanship. Gant Bowman and Dave Bowman were always available to answer any questions we had and were very transparent throughout the entire process. Finding a local contractor was difficult, but Tanoak Construction made the process easy and stress-free. They were clean, very respectful while in our home, and gave great advice. Every subcontractor they brought in was also great to work with. We highly recommend them to anyone in the Sonoma County area who needs remodeling work done."

Martin B on September 2023

I have more than 35 years' of residential, commercial and industrial experience and I pride my company on reliability, great communication, integrity, and quality work. I will do my best to keep you as educated as we can on your particular project. I look forward to earning your business!

"We recently had our bathroom remodeled by Tanoak Construction and we are extremely satisfied with the quality of workmanship. Gant Bowman and Dave Bowman were always available to answer any questions we had and were very transparent throughout the entire process. Finding a local contractor was difficult, but Tanoak Construction made the process easy and stress-free. They were clean, very respectful while in our home, and gave great advice. Every subcontractor they brought in was also great to work with. We highly recommend them to anyone in the Sonoma County area who needs remodeling work done."

Martin B on September 2023


Concept, Design, Develop, Inc.

PO Box 15035
5.00(
4
)
Approved Pro

Concept, Design, Develop, Inc.

PO Box 15035
5.00(
4
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's 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 did an excellent job! We definitely would want to use them again. They just replaced the siding on the sun beaten part of our house. It looks much better than before and matches the rest of the house perfectly. They were responsive and got things done in a timely manner. I recommend vey highly."

Doug W on May 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's 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 did an excellent job! We definitely would want to use them again. They just replaced the siding on the sun beaten part of our house. It looks much better than before and matches the rest of the house perfectly. They were responsive and got things done in a timely manner. I recommend vey highly."

Doug W on May 2024


Avatar for Qualified Builders Construction

Qualified Builders Construction

2206 Oakview Court
5.00(
2
)
Approved Pro

Qualified Builders Construction

2206 Oakview Court
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Qualified Builders Construction, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Excellent company! Phenomenal work for the price and I am very happy with the fence they built!"

Mark L on January 2023

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Qualified Builders Construction, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Excellent company! Phenomenal work for the price and I am very happy with the fence they built!"

Mark L on January 2023


Reichert Building Solutions

11 Friendly Lane
5.00(
4
)
Approved Pro

Reichert Building Solutions

11 Friendly Lane
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

With years of experience serving the area, we are your solution for all your (PWC) needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"they are great"

Jenny H on July 2024

With years of experience serving the area, we are your solution for all your (PWC) needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"they are great"

Jenny H on July 2024


Avatar for Corona's Construction, Inc.

Corona's Construction, Inc.

79 Madrigal St
5.00(
4
)
Approved Pro

Corona's Construction, Inc.

79 Madrigal St
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

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

"He builds 3 decks for me, they were large decks, he also extended the roof over one of the decks, and he fixed one of the decks, that was flooding with rain. He is easy to work with, explains everything, got the work done quickly, and on time. He is professional, reliable, and hard-working. No issues, no problems. He has done many projects for me, he does more than just decks. He has done windows, remodeling work, painting, and also put on a bathtub. He is the one I always call."

Wendy W on May 2021

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

"He builds 3 decks for me, they were large decks, he also extended the roof over one of the decks, and he fixed one of the decks, that was flooding with rain. He is easy to work with, explains everything, got the work done quickly, and on time. He is professional, reliable, and hard-working. No issues, no problems. He has done many projects for me, he does more than just decks. He has done windows, remodeling work, painting, and also put on a bathtub. He is the one I always call."

Wendy W on May 2021


Wadleigh Group, Inc.

214 Club Drive
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Wadleigh Group, Inc.

214 Club Drive
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
10 local quotes requested
18 years of experience

Wadleigh Group, 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.

Wadleigh Group, 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 Morgan C Winslow A Partnership

Morgan C Winslow A Partnership

8901 Jeannette Avenue
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Morgan C Winslow A Partnership

8901 Jeannette Avenue
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
31 years of experience
Free onsite estimate

Morgan C Winslow A Partnership is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!!!!!

Morgan C Winslow A Partnership is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!!!!!


Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

180 Steuart St., Box 194631
4.88(
38
)
Approved Pro

Prosper Construction Development, Inc.

180 Steuart St., Box 194631
4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
188 local quotes requested

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


Big River Builders, Inc.

5510 Skylane Boulevard, Suite 203
4.50(
2
)
Approved Pro

Big River Builders, Inc.

5510 Skylane Boulevard, Suite 203
4.50(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 local quotes requested

BIG RIVER BUILDERS INC offers 40 years experience and the best customer service. We are here to build relationships with our customers and communities. BIG RIVER BUILDERS INC is a leader providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. We believe in building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"The employees were great. A couple of days there was only 1 man on the job due to illness. The company did not replace him, so the 1 man had to work alone, slowing down the completion of the project. Art and Johnny were great to work with. Communication with the office was a little lacking, but overall we are happy with the work."

Bruce J on September 2020

BIG RIVER BUILDERS INC offers 40 years experience and the best customer service. We are here to build relationships with our customers and communities. BIG RIVER BUILDERS INC is a leader providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. We believe in building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"The employees were great. A couple of days there was only 1 man on the job due to illness. The company did not replace him, so the 1 man had to work alone, slowing down the completion of the project. Art and Johnny were great to work with. Communication with the office was a little lacking, but overall we are happy with the work."

Bruce J on September 2020

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FAQs for addition to existing structure building service projects in Sebastopol, 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 Sebastopol, 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    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.