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Addition to existing structure builders in Watsonville

Avatar for Nicholas Bertram
Nicholas Bertram
151 Atherton Loop
New on HomeAdvisorNew on Angi
Approved Pro
Nicholas Bertram
151 Atherton Loop
New on AngiNew on HomeAdvisor
Approved Pro
15 years of experience
Free onsite estimate

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.


Avatar for Hamilton Construction
Hamilton Construction
421 Lighthouse Ave
4.80(
5
)
Approved Pro
Hamilton Construction
421 Lighthouse Ave
4.80(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

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


Avatar for BE HOME REMODELING INC
BE HOME REMODELING INC
282 Bayview Ave
4.94(
9
)
Approved Pro
BE HOME REMODELING INC
282 Bayview Ave
4.94(
9
)
Approved Pro
Customers say: Quick response
110 local quotes requested
1 years of experience

Be Home Remodeling is a home improvement company dedicated to transforming spaces with quality craftsmanship and personalized service. We specialize in a range of remodeling projects, from kitchens and bathrooms to full home renovations, back yard remodeling and more. Our team of experienced professionals collaborates closely with clients to understand their vision and bring it to life, ensuring each project reflects their style and meets their needs. Whether you're looking to update a single room or undertake a complete overhaul, Be Home Remodeling is here to make your dream home a reality.

"The good job was done on time. Highly recommend.."

George W on June 2025

Be Home Remodeling is a home improvement company dedicated to transforming spaces with quality craftsmanship and personalized service. We specialize in a range of remodeling projects, from kitchens and bathrooms to full home renovations, back yard remodeling and more. Our team of experienced professionals collaborates closely with clients to understand their vision and bring it to life, ensuring each project reflects their style and meets their needs. Whether you're looking to update a single room or undertake a complete overhaul, Be Home Remodeling is here to make your dream home a reality.

"The good job was done on time. Highly recommend.."

George W on June 2025


Avatar for State Construction
State Construction
19400 Monterey Rd
5.00(
5
)
Approved Pro
State Construction
19400 Monterey Rd
5.00(
5
)
Approved Pro
11 years of experience
Free onsite estimate

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.

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.


Aboveboard Construction, Inc.
3950 A Bramble Lane
5.00(
9
)
Approved Pro
Aboveboard Construction, Inc.
3950 A Bramble Lane
5.00(
9
)
Approved Pro
21 years of experience
Free onsite estimate

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


Avatar for Ken Cross Construction
Ken Cross Construction
6556 Freedom Boulevard
4.50(
6
)
Approved Pro
Ken Cross Construction
6556 Freedom Boulevard
4.50(
6
)
Approved Pro
Customers say: Quality work
4 years of experience
Free onsite estimate

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 customer’s 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 customer’s 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


Avatar for SAN & ZOE GENERAL CONTRACTOR INC
SAN & ZOE GENERAL CONTRACTOR INC
1317 PALMERA AVE
New on HomeAdvisorNew on Angi
Approved Pro
SAN & ZOE GENERAL CONTRACTOR INC
1317 PALMERA AVE
New on AngiNew on HomeAdvisor
Approved Pro
10 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 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
231 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


Avatar for Solid Oak Construction Co
Solid Oak Construction Co
5.00(
1
)
Approved Pro
Solid Oak Construction Co
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

With over 25 years of experience in the construction industry, Shanne began his career as a carpenter in his father’s business before establishing Solid Oak Construction Co. He offers a wide variety of services regarding home renovations; including kitchen remodels, building decks and fences, interior/exterior painting, flooring install, concrete and pavers, and landscaping. His team of skilled carpenters provides quality workmanship and excellent customer service to ensure your home is well-maintained and fully functional. Shanne oversees projects from concept to completion, collaborating closely with homeowners, developers, and subcontractors to ensure every detail is executed with precision.

"Shanne and his team are top notch. The follow up and customer service has been excellent. I highly recommend Solid Oak Construction for small or large scale projects."

elizabeth p on March 2025

With over 25 years of experience in the construction industry, Shanne began his career as a carpenter in his father’s business before establishing Solid Oak Construction Co. He offers a wide variety of services regarding home renovations; including kitchen remodels, building decks and fences, interior/exterior painting, flooring install, concrete and pavers, and landscaping. His team of skilled carpenters provides quality workmanship and excellent customer service to ensure your home is well-maintained and fully functional. Shanne oversees projects from concept to completion, collaborating closely with homeowners, developers, and subcontractors to ensure every detail is executed with precision.

"Shanne and his team are top notch. The follow up and customer service has been excellent. I highly recommend Solid Oak Construction for small or large scale projects."

elizabeth p on March 2025


Avatar for Superb Builders & Custom Made Cabinetry Inc.
Superb Builders & Custom Made Cabinetry Inc.
3.17(
24
)
Approved Pro
Superb Builders & Custom Made Cabinetry Inc.
3.17(
24
)
Approved Pro
Customers say: Quality work
1018 local quotes requested
4 years of experience

Family owned business with over 22 years of experience -Remodeling - General - Remodeling - Kitchen & Bathroom - full home remodels - room additions - ADU's - Full Roof replacement -

"Would not recommend them to anyone. We had the worst experience with these guys. Scope of project: kitchen complete remodel, replacing carpet flooring with vinyl tile flooring , redo electrical for kitchen area only cost: 100K+ what went to plan: - kitchen demo - made one nice dry wall - setting up and framing of the kitchen area what went wrong: - communication/scheduling : we would never be told ahead of time when work was being done. Sometimes there would be days stretches where no one showed up and then guys would show up randomly on a Sunday morning. At the start of the project we told them we were going to move into the back half of the house, so just have that clean. We moved into trash and debris everywhere. They also saw a vinyl strap , strapped to our tree, tied to our neighbor's fence (it was there keeping the fence up as the tree was leaning into the neighbors fence). In their brilliance, they decided to cut the strap and use it for themselves. How did we know? we found it on our roof, used to tie some electrical conduit. Who the heck does that?! We should've cut ties at that point, it was just the start...if we only knew. But we gave them the benefit of the doubt...but things kept going wrong. - Kitchen cabinet install was not leveled, we end up telling them to not bother coming back and we installed the whole kitchen ourselves (re-leveling the base cabinets, putting on the hardware, installing the cabinet doors. - broke several custom panels (to their credit, they did pay for the reorder) but we ended up installing it ourselves , which we were never offered refund the labor. - the kitchen counter was not leveled, we also had to redo it ourselves in order for the independent countertop guys to install it. - cut hole for electrical switch too big, huge gap now in our org Eichler panel that is not repairable unless we replace the whole wall. - cut hole in wood beam ceiling too big for ceiling vent even though they had the manufacturer's specifications. tried to fix it, but it looks terrible. - lied and said they had experience installing lux vinyl tile. They didn't. The flooring , which is supposed to be new, looks like flooring that has been there for years and hadn't been replaced. It was discolored, uneven, not leveled, and not even lined up. How can you mess up lining up squares? Our sales person Joe ,came and made excuses after excuses , telling us " no one can install it better than them" , that this is the "best" we'll get. I cannot believe he could look us in the face and say that. We ended up requesting 1500 back, though for us to reorder redo the tiles for the kitchen will be 3K+. - as a last F you to us, they gave us the bill for the permit fees which includes a 3% of project cost recycling deposit that is 100% refundable if they just do the paperwork and let the city know where they recycled the demolition material. Our kitchen project was 80K and so it was $2400. Guess what, they "never heard of this" and have no proof of where they recycled the material and so cannot get the refund. I have no idea where they dumped the material.....and we're out 2400. The best thing about this project is finishing and NEVER having to deal with them again."

bobby p on April 2020

Family owned business with over 22 years of experience -Remodeling - General - Remodeling - Kitchen & Bathroom - full home remodels - room additions - ADU's - Full Roof replacement -

"Would not recommend them to anyone. We had the worst experience with these guys. Scope of project: kitchen complete remodel, replacing carpet flooring with vinyl tile flooring , redo electrical for kitchen area only cost: 100K+ what went to plan: - kitchen demo - made one nice dry wall - setting up and framing of the kitchen area what went wrong: - communication/scheduling : we would never be told ahead of time when work was being done. Sometimes there would be days stretches where no one showed up and then guys would show up randomly on a Sunday morning. At the start of the project we told them we were going to move into the back half of the house, so just have that clean. We moved into trash and debris everywhere. They also saw a vinyl strap , strapped to our tree, tied to our neighbor's fence (it was there keeping the fence up as the tree was leaning into the neighbors fence). In their brilliance, they decided to cut the strap and use it for themselves. How did we know? we found it on our roof, used to tie some electrical conduit. Who the heck does that?! We should've cut ties at that point, it was just the start...if we only knew. But we gave them the benefit of the doubt...but things kept going wrong. - Kitchen cabinet install was not leveled, we end up telling them to not bother coming back and we installed the whole kitchen ourselves (re-leveling the base cabinets, putting on the hardware, installing the cabinet doors. - broke several custom panels (to their credit, they did pay for the reorder) but we ended up installing it ourselves , which we were never offered refund the labor. - the kitchen counter was not leveled, we also had to redo it ourselves in order for the independent countertop guys to install it. - cut hole for electrical switch too big, huge gap now in our org Eichler panel that is not repairable unless we replace the whole wall. - cut hole in wood beam ceiling too big for ceiling vent even though they had the manufacturer's specifications. tried to fix it, but it looks terrible. - lied and said they had experience installing lux vinyl tile. They didn't. The flooring , which is supposed to be new, looks like flooring that has been there for years and hadn't been replaced. It was discolored, uneven, not leveled, and not even lined up. How can you mess up lining up squares? Our sales person Joe ,came and made excuses after excuses , telling us " no one can install it better than them" , that this is the "best" we'll get. I cannot believe he could look us in the face and say that. We ended up requesting 1500 back, though for us to reorder redo the tiles for the kitchen will be 3K+. - as a last F you to us, they gave us the bill for the permit fees which includes a 3% of project cost recycling deposit that is 100% refundable if they just do the paperwork and let the city know where they recycled the demolition material. Our kitchen project was 80K and so it was $2400. Guess what, they "never heard of this" and have no proof of where they recycled the material and so cannot get the refund. I have no idea where they dumped the material.....and we're out 2400. The best thing about this project is finishing and NEVER having to deal with them again."

bobby p on April 2020

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

The Watsonville, 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.
master bedroom with fireplace
Jun 26, 2025
Jun 26, 2025
Budget for bedroom remodel costs based on factors such as bedroom size, remodel type, features, materials, labor, and more.
CONTRACTOR LOOKING OVER HOME DEVELOPMENT
Apr 19, 2025
Apr 19, 2025
Budget for your general contractor’s hourly rate by considering factors such as project scope, fee structure, pricing model, and more.
Outdoor view of the modern house
Jun 16, 2025
Jun 16, 2025
Explore how square footage, room type, home additions, and other common factors affect house renovation costs with our detailed cost guide.
BRIGHT OPEN ATTIC SPACE
Jun 10, 2025
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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.
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