Get matched with top addition to existing structure builders in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Addition to existing structure builders in Felton
Bertram Builders LLC is a locally owned, Santa Cruz county based general building contractor that specializes in residential construction and framing. We are a team of hardworkers who take pride in quality and honesty. From full-on interior remodels and ground-up construction, to decks, bathroom remodels and ADU's we strive to do the right thing and make your home dreams a reality.
Bertram Builders LLC is a locally owned, Santa Cruz county based general building contractor that specializes in residential construction and framing. We are a team of hardworkers who take pride in quality and honesty. From full-on interior remodels and ground-up construction, to decks, bathroom remodels and ADU's we strive to do the right thing and make your home dreams a reality.
Justin Hamilton with Hamilton Construction would like to provide you with the same exceptional addition, remodel and deck service that our current customers in the Santa Cruz area enjoy. Call us today!
"My husband and I are so happy with the work they did. Our front porch looks great. I also hired them to fix a wall of our rooftop deck. I have recommended Justin to a neighbor and he will be working on his house soon."
Lisa P on October 2018
Justin Hamilton with Hamilton Construction would like to provide you with the same exceptional addition, remodel and deck service that our current customers in the Santa Cruz area enjoy. Call us today!
"My husband and I are so happy with the work they did. Our front porch looks great. I also hired them to fix a wall of our rooftop deck. I have recommended Justin to a neighbor and he will be working on his house soon."
Lisa P on October 2018
Our company 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. Please give us a call today!
"Ken and his crew built me 2 beautiful bamboo decks. One large and one small. They also replaced all the plywood and siding on the back of my house. Our upper deck, which is the larger one has a water drainage system so we can have a living space underneath. The lower deck, which is the smaller one is flanked by concrete planter boxes and looks awesome! Despite last winters heavy storms, they got the job done quickly and efficiently."
jeremy h on December 2024
Our company 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. Please give us a call today!
"Ken and his crew built me 2 beautiful bamboo decks. One large and one small. They also replaced all the plywood and siding on the back of my house. Our upper deck, which is the larger one has a water drainage system so we can have a living space underneath. The lower deck, which is the smaller one is flanked by concrete planter boxes and looks awesome! Despite last winters heavy storms, they got the job done quickly and efficiently."
jeremy h on December 2024
We are a locally owned and operated company with over 22 years of industry 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 handyman/carpentry 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!
"They did quality work. Very easy to reach by phone for sure. Very quick response when you call them or email. It's very nice. His bid and his quality were above three other contractors. He would small changes are part of the cost. Extremely good value on not charging extra. I would definitely recommend him."
David C on January 2016
We are a locally owned and operated company with over 22 years of industry 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 handyman/carpentry 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!
"They did quality work. Very easy to reach by phone for sure. Very quick response when you call them or email. It's very nice. His bid and his quality were above three other contractors. He would small changes are part of the cost. Extremely good value on not charging extra. I would definitely recommend him."
David C on January 2016
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.
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.
ABOVEBOARD CONSTRUCTION INC. offers comprehensive residential construction services, from foundation to completion. With over two decades of experience, we’ve successfully built new homes, additions, remodels, fences, and decking in Santa Cruz County and Los Gatos. Our skilled team prioritizes meticulous attention to detail and craftsmanship, ensuring exceptional construction. Whether you’re building a new home, constructing an ADU, renovating your existing home, or renovating your kitchen, bathroom, or any other space including catios. With your vision in mind we’ll guide you through the process. Call us for a complimentary quote, consultation, or to learn more about our services. (831) 566-7371
"We couldn't be happier with the deck that Randy Solomon from Aboveboard Construction built for us. From start to finish, the project was handled with professionalism, attention to detail, and real craftsmanship. The final result exceeded my expectations — it's solid, beautifully finished, and has completely transformed my outdoor space. What really stood out was the care and pride Randy took in his work. He was communicative throughout the process, offered great design suggestions, and made sure everything was done right — no shortcuts. It’s clear he genuinely cares about the quality of what he builds. If you're looking for someone who’s reliable, hardworking, and talented, I recommend Randy and Aboveboard Construction wholeheartedly! "
Marianne T on June 2025
ABOVEBOARD CONSTRUCTION INC. offers comprehensive residential construction services, from foundation to completion. With over two decades of experience, we’ve successfully built new homes, additions, remodels, fences, and decking in Santa Cruz County and Los Gatos. Our skilled team prioritizes meticulous attention to detail and craftsmanship, ensuring exceptional construction. Whether you’re building a new home, constructing an ADU, renovating your existing home, or renovating your kitchen, bathroom, or any other space including catios. With your vision in mind we’ll guide you through the process. Call us for a complimentary quote, consultation, or to learn more about our services. (831) 566-7371
"We couldn't be happier with the deck that Randy Solomon from Aboveboard Construction built for us. From start to finish, the project was handled with professionalism, attention to detail, and real craftsmanship. The final result exceeded my expectations — it's solid, beautifully finished, and has completely transformed my outdoor space. What really stood out was the care and pride Randy took in his work. He was communicative throughout the process, offered great design suggestions, and made sure everything was done right — no shortcuts. It’s clear he genuinely cares about the quality of what he builds. If you're looking for someone who’s reliable, hardworking, and talented, I recommend Randy and Aboveboard Construction wholeheartedly! "
Marianne T on June 2025
Mike Kelly Construction is a locally owned and operated company serving Santa Cruz County and beyond. Mike and his crew have decades of experience in construction and remodeling. We can help you with everything from handyman services to building the home of your dreams. No job is too small, for our business grows by building long-term relationships with our customers. Hire us once, and you'll be a client for years to come. Mike Kelly Construction is a Certified Green Building Professional and also has an EPA lead renovator certificate. Give us a call and tell us how we can be of service.
"Mike was easy to work with and has a stable experienced crew. The unexpected was handled well."
Bradley T on May 2025
Mike Kelly Construction is a locally owned and operated company serving Santa Cruz County and beyond. Mike and his crew have decades of experience in construction and remodeling. We can help you with everything from handyman services to building the home of your dreams. No job is too small, for our business grows by building long-term relationships with our customers. Hire us once, and you'll be a client for years to come. Mike Kelly Construction is a Certified Green Building Professional and also has an EPA lead renovator certificate. Give us a call and tell us how we can be of service.
"Mike was easy to work with and has a stable experienced crew. The unexpected was handled well."
Bradley T on May 2025
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. Over 10 years experience in the Contracting Industry. Fully licensed and Insured. Family owned and operated business.
"Our goal was to build a structurally safe garage storage loft. Juan and Julian were a great team to work with. They were very professional and organized- they gave us a quote and clearly communicated what the plan would look like from beginning to end. They guided us on the items that we needed to buy prior to starting the work in order to complete the project within the estimated time. They suggested modifications that were minor fixes but made the layout make more sense in terms of placement. Their crew finished a day ahead of schedule. They kept a clean work site and the quality of the results were great. I would gladly work with them on another home project in the future!"
Anthony G on April 2025
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. Over 10 years experience in the Contracting Industry. Fully licensed and Insured. Family owned and operated business.
"Our goal was to build a structurally safe garage storage loft. Juan and Julian were a great team to work with. They were very professional and organized- they gave us a quote and clearly communicated what the plan would look like from beginning to end. They guided us on the items that we needed to buy prior to starting the work in order to complete the project within the estimated time. They suggested modifications that were minor fixes but made the layout make more sense in terms of placement. Their crew finished a day ahead of schedule. They kept a clean work site and the quality of the results were great. I would gladly work with them on another home project in the future!"
Anthony G on April 2025
Rose Remodeling & Design 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.
"From start to finish, Rose Remodel and Design, with Adir at the helm, has coordinated an excellent remodel of our bathroom. It went from a moldy, chipped, crowded eyesore to a beautiful, functional, safe place. His initial vision, clear and detailed communication throughout the process, guidance in choosing products, and provision of a talented group of hard working experts has transformed the space. I highly recommend. Great personalized customer service. "
Shirley S on March 2025
Rose Remodeling & Design 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.
"From start to finish, Rose Remodel and Design, with Adir at the helm, has coordinated an excellent remodel of our bathroom. It went from a moldy, chipped, crowded eyesore to a beautiful, functional, safe place. His initial vision, clear and detailed communication throughout the process, guidance in choosing products, and provision of a talented group of hard working experts has transformed the space. I highly recommend. Great personalized customer service. "
Shirley S on March 2025
Bay Builders & Remodeling is a general contractor located in San Jose serving Silicon Valley and specializing in building custom homes, room additions, and ADUs, and kitchen & bathroom remodeling. We are committed to exceptionalism in craftsmanship, integrity, and professionalism every step of the way from the first phone call to the final brush stroke. But even more than that, we work closely with our clients to ensure that we understand their vision and then work to deliver. We serve the Bay Area towns of Atherton, Belmont, Burlingame, Campbell, Cupertino, Foster City, Fremont, Los Altos, Los Altos Hills, Los Gatos, Menlo Park, Millbrae, Milpitas, Mountain View, Newark, Palo Alto, Portola Valley, Redwood City, San Bruno, San Carlos, San Jose, San Mateo, Santa Clara, Saratoga, Sunnyvale, and Woodside. We offer complimentary consultations with a written proposal. Please contact us for references.
"Tal was highly recommended by a friend of mine. He came to our house with a portfolio of all the beautiful remodeling jobs he had done. He sent a detailed proposal only a few days later. We had the first floor of our home remodeled which included: kitchen, living room, dining room, family room, and powder room. We had the fireplace totally redone with an electric insert installed. We had luxury vinyl flooring installed ,the popcorn ceiling removed ,recessed lighting, and walls painted. It all looks amazing I feel like I have a new house. Tal was wonderful. He helped us pick out the flooring and the quartz countertops to complement the white shaker cabinets I chose. Everyone that was involved in the remodeling were fantastic. The workers were all very professional and were there every day, except weekends) Tal came every day to check on the progress. He let me know what was going to be done that day and who was coming to do it. Tal always answered my text messages immediately when I had questions too. It took a total of about 7 weeks. They finished on my birthday! When it is time to remodel the 2nd floor we will definitely Choose Bay Builders . (I'm hoping next year) I have recommended them to several friends and neighbors. I LOVE the 1st floor of my home now!!!!!"
Patricia L on August 2021
Bay Builders & Remodeling is a general contractor located in San Jose serving Silicon Valley and specializing in building custom homes, room additions, and ADUs, and kitchen & bathroom remodeling. We are committed to exceptionalism in craftsmanship, integrity, and professionalism every step of the way from the first phone call to the final brush stroke. But even more than that, we work closely with our clients to ensure that we understand their vision and then work to deliver. We serve the Bay Area towns of Atherton, Belmont, Burlingame, Campbell, Cupertino, Foster City, Fremont, Los Altos, Los Altos Hills, Los Gatos, Menlo Park, Millbrae, Milpitas, Mountain View, Newark, Palo Alto, Portola Valley, Redwood City, San Bruno, San Carlos, San Jose, San Mateo, Santa Clara, Saratoga, Sunnyvale, and Woodside. We offer complimentary consultations with a written proposal. Please contact us for references.
"Tal was highly recommended by a friend of mine. He came to our house with a portfolio of all the beautiful remodeling jobs he had done. He sent a detailed proposal only a few days later. We had the first floor of our home remodeled which included: kitchen, living room, dining room, family room, and powder room. We had the fireplace totally redone with an electric insert installed. We had luxury vinyl flooring installed ,the popcorn ceiling removed ,recessed lighting, and walls painted. It all looks amazing I feel like I have a new house. Tal was wonderful. He helped us pick out the flooring and the quartz countertops to complement the white shaker cabinets I chose. Everyone that was involved in the remodeling were fantastic. The workers were all very professional and were there every day, except weekends) Tal came every day to check on the progress. He let me know what was going to be done that day and who was coming to do it. Tal always answered my text messages immediately when I had questions too. It took a total of about 7 weeks. They finished on my birthday! When it is time to remodel the 2nd floor we will definitely Choose Bay Builders . (I'm hoping next year) I have recommended them to several friends and neighbors. I LOVE the 1st floor of my home now!!!!!"
Patricia L on August 2021
FAQs for addition to existing structure building service projects in Felton, CA
Yes, you can add a bathroom on a concrete slab, but the crew will need to saw-cut the slab, trench in new supply and drain lines, and then patch the concrete without weakening the foundation. Working with an experienced plumber and concrete pro keeps the structure intact and helps the new bathroom pass inspections.
schedule covers planning, permits, framing, rough-ins, finishes, and punch-list items.
Larger spaces or extensive plumbing and electrical upgrades can stretch the timeline, while a simple powder-room conversion may wrap up faster. Hiring licensed pros helps keep the schedule on track and the work up to code.
The best location depends on how your family uses the space. An upstairs bath keeps nighttime trips close to the bedrooms, while a first-floor powder room is handy for guests and everyday traffic.
Think about where plumbing lines already run, how much square footage you can spare, and what layout changes fit your budget. A pro can map out the smartest spot and handle any code hurdles.
With the right planning, you can carve out a bathroom in almost any part of the house. A successful addition requires sufficient space, proper ventilation, and access to plumbing and electrical systems. Structural modifications and adherence to building codes are essential.
This process demands careful planning and the coordination of specialized professionals who ensure that the new space meets all code requirements and functional needs.
Under specific conditions, adding an extra bedroom can boost home value more than adding a bathroom. Home value is driven by overall configuration, market demand, and functional balance. A new bedroom influences the property’s appeal in different ways, while an additional bathroom enhances living convenience. Evaluating the current layout and market trends determines the optimal choice for maximum value.
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
