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Find Addition to existing structure builders in Seattle

Avatar for Home Care Contractors, LLC

Home Care Contractors, LLC

4.84(
19
)
Approved Pro

Home Care Contractors, LLC

4.84(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
9 years of experience

Home Care Contractors, LLC 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.

"Overall good experience with HCC."

Jessica B on November 2021

Home Care Contractors, LLC 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.

"Overall good experience with HCC."

Jessica B on November 2021


Avatar for ProWorks Enterprises

ProWorks Enterprises

4.71(
21
)
Approved Pro

ProWorks Enterprises

4.71(
21
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
9 years of experience

ProWorks Enterprises is a general contractor offering residential, commercial, and government services on the Kitsap Peninsula and surrounding areas. Our company is built on the principles of high quality work, high quality materials, and excellent service. We're not always the cheapest option, but we provide the best value by using materials and practices that are long-lasting, low-maintenance, and environmentally friendly. Our in-house specialties include excavation, remodeling, concrete, retaining walls, landscaping, and more. ProWorks Enterprises is a 100% Veteran Owned and Operated Business. With our backgrounds of military and law enforcement, we also offer security consulting and construction services to keep your home and business safe.

"They really do excellent work and staff are friendly andr very professional. I'm a satisfied customer and I highly recommend them."

Bill Q on October 2024

ProWorks Enterprises is a general contractor offering residential, commercial, and government services on the Kitsap Peninsula and surrounding areas. Our company is built on the principles of high quality work, high quality materials, and excellent service. We're not always the cheapest option, but we provide the best value by using materials and practices that are long-lasting, low-maintenance, and environmentally friendly. Our in-house specialties include excavation, remodeling, concrete, retaining walls, landscaping, and more. ProWorks Enterprises is a 100% Veteran Owned and Operated Business. With our backgrounds of military and law enforcement, we also offer security consulting and construction services to keep your home and business safe.

"They really do excellent work and staff are friendly andr very professional. I'm a satisfied customer and I highly recommend them."

Bill Q on October 2024


Avatar for Wylie Painting & Construction, Inc.

Wylie Painting & Construction, Inc.

4.58(
6
)
Approved Pro

Wylie Painting & Construction, Inc.

4.58(
6
)
Approved Pro
Customers say: Quality work
17 years of experience
Free onsite estimate

Since 1996, Wylie Construction has been at the forefront of blending traditional craftsmanship with modern technology. As a family-owned business, we pride ourselves on bringing a personal touch to every project, ensuring that each home we work on resonates with the dreams and aspirations of its owner. Our specialties encompass state-of-the-art kitchen redesigns, midsize to major home overhauls, and cutting-edge Detached Accessory Dwelling Units (DADUs). Our tech-savvy approach ensures that our projects not only meet but exceed the expectations of today's tech-oriented homeowners. With full licensing and bonding, we guarantee that no project is too ambitious for our seasoned team. Trust in Wylie Construction to bring your tech-integrated dream home to life.

"We hired WPC to construct an addition our home. The project started well and we were generally happy with their work. There were several points where their oversight of subcontractor work was lacking, including a major framing mistake and roofing material that did match the rest of our house. Their invoices lacked details and upon requesting receipts and hours breakdown it was clear there were some discrepancies. For example, we were charged 8 hours for two 20 minute inspection appointments. Getting towards the end of the project it was clear that they were going to far exceed the budget our contract specified and work was very sporadic, dragging the project schedule out unnecessarily. We had a disagreement about how they were applying their margin to a new heating system in our existing home (i.e. not part of the addition), which eventually led them pulling out of the project. Had they not done that, we would have fired them due to their poor performance. We had a neighbor who hired them for a DADU project and he had a similar complaint about them not being able to deliver at the end of the project. We were lucky to find another contractor that actually showed up to do the work and did exactly what they said they would do."

Michael H on May 2021

Since 1996, Wylie Construction has been at the forefront of blending traditional craftsmanship with modern technology. As a family-owned business, we pride ourselves on bringing a personal touch to every project, ensuring that each home we work on resonates with the dreams and aspirations of its owner. Our specialties encompass state-of-the-art kitchen redesigns, midsize to major home overhauls, and cutting-edge Detached Accessory Dwelling Units (DADUs). Our tech-savvy approach ensures that our projects not only meet but exceed the expectations of today's tech-oriented homeowners. With full licensing and bonding, we guarantee that no project is too ambitious for our seasoned team. Trust in Wylie Construction to bring your tech-integrated dream home to life.

"We hired WPC to construct an addition our home. The project started well and we were generally happy with their work. There were several points where their oversight of subcontractor work was lacking, including a major framing mistake and roofing material that did match the rest of our house. Their invoices lacked details and upon requesting receipts and hours breakdown it was clear there were some discrepancies. For example, we were charged 8 hours for two 20 minute inspection appointments. Getting towards the end of the project it was clear that they were going to far exceed the budget our contract specified and work was very sporadic, dragging the project schedule out unnecessarily. We had a disagreement about how they were applying their margin to a new heating system in our existing home (i.e. not part of the addition), which eventually led them pulling out of the project. Had they not done that, we would have fired them due to their poor performance. We had a neighbor who hired them for a DADU project and he had a similar complaint about them not being able to deliver at the end of the project. We were lucky to find another contractor that actually showed up to do the work and did exactly what they said they would do."

Michael H on May 2021


Greg Appert Construction

5.00(
1
)
Approved Pro

Greg Appert Construction

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

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality 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.

"I have been using their services for 10 years, and I greatly appreciate their integrity, trust, dedication, and the quality of their work. I would highly recommend them!"

Glenn B on January 2021

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality 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.

"I have been using their services for 10 years, and I greatly appreciate their integrity, trust, dedication, and the quality of their work. I would highly recommend them!"

Glenn B on January 2021


Avatar for Mount Baker Remodeling

Mount Baker Remodeling

4.29(
7
)
Approved Pro

Mount Baker Remodeling

4.29(
7
)
Approved Pro
25 years of experience
Free onsite estimate

Since 2000 Mount Baker Remodeling has been expanding its circle of clients through a variety of high quality remodeling projects - kitchens, baths, basements, additional dwelling units, and more. We look forward to helping you create a beautiful, enjoyable and practical backdrop to your home life - a home remodeled for better living. MBR gives special attention to customized interior/exterior architectural and decorative details that create one-of-a kind living spaces. Mount Baker Remodeling uses the highest quality products to ensure that your remodel stands the test of time. We strive to complete every project, large or small, on time and on budget. With team collaboration, we turn your vision into reality.

" We engaged My Baker after our basement flooded a few years ago. They did very good work on a project despite it being during the pandemic. Their workers were respectful and the project was finished on budget at quality standards we were thrilled with. "

Jason S on July 2025

Since 2000 Mount Baker Remodeling has been expanding its circle of clients through a variety of high quality remodeling projects - kitchens, baths, basements, additional dwelling units, and more. We look forward to helping you create a beautiful, enjoyable and practical backdrop to your home life - a home remodeled for better living. MBR gives special attention to customized interior/exterior architectural and decorative details that create one-of-a kind living spaces. Mount Baker Remodeling uses the highest quality products to ensure that your remodel stands the test of time. We strive to complete every project, large or small, on time and on budget. With team collaboration, we turn your vision into reality.

" We engaged My Baker after our basement flooded a few years ago. They did very good work on a project despite it being during the pandemic. Their workers were respectful and the project was finished on budget at quality standards we were thrilled with. "

Jason S on July 2025


Avatar for Fine Design Build, LLC

Fine Design Build, LLC

4.00(
13
)
Approved Pro

Fine Design Build, LLC

4.00(
13
)
Approved Pro
Customers say: Quick response
17 local quotes requested
21 years of experience

Fine Design Build is a third generation, design-build company. We shepherd our clients, working side by side, with architects and engineers that we have long-standing relationships with, pushing design past traditional scope limitations. We navigate through the challenging permitting, involving shorelines development, ECA steep slope areas, wetlands. Permitting can be a huge challenge particularly on waterfront parcels. We are experts at removing obstacles and creatively designing homes with minimal to zero impact to environment. After designing your home, we shepherd you through the challenging environment of building. We are very selective about our team and in our rare circumstance as a company, the general contractor, is onsite performing a good percentage of excavation, storm water management, septic, concrete, framing and finishes. We have a unique approach with full transparency where money is spent. The customer has their foot on the gas petal/brake throughout the entire build.

"Best contractor ever. At Fine Design Build the service received was like none other, quality, craftsmanship, in both work and design. We will be forever pleased with house build that we received."

Megane D on June 2025

Fine Design Build is a third generation, design-build company. We shepherd our clients, working side by side, with architects and engineers that we have long-standing relationships with, pushing design past traditional scope limitations. We navigate through the challenging permitting, involving shorelines development, ECA steep slope areas, wetlands. Permitting can be a huge challenge particularly on waterfront parcels. We are experts at removing obstacles and creatively designing homes with minimal to zero impact to environment. After designing your home, we shepherd you through the challenging environment of building. We are very selective about our team and in our rare circumstance as a company, the general contractor, is onsite performing a good percentage of excavation, storm water management, septic, concrete, framing and finishes. We have a unique approach with full transparency where money is spent. The customer has their foot on the gas petal/brake throughout the entire build.

"Best contractor ever. At Fine Design Build the service received was like none other, quality, craftsmanship, in both work and design. We will be forever pleased with house build that we received."

Megane D on June 2025


Platinum General Construction LLC

5.00(
6
)
Approved Pro

Platinum General Construction LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
10 years of experience
Free onsite estimate

With years in the industry here at Platinum General Construction LLC we pride our company on attention to detail, punctuality, 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 attention to detail is that of no other. We look forward to earning your business. Give us a call today!

"Look in pictures for my review "

Alicia G on August 2025

With years in the industry here at Platinum General Construction LLC we pride our company on attention to detail, punctuality, 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 attention to detail is that of no other. We look forward to earning your business. Give us a call today!

"Look in pictures for my review "

Alicia G on August 2025


Avatar for Topaz Remodeling, Inc.

Topaz Remodeling, Inc.

5.00(
98
)
Approved Pro

Topaz Remodeling, Inc.

5.00(
98
)
Approved Pro
Super Service Award
Customers say: Quality work
167 local quotes requested
12 years of experience

Welcome to Topaz Remodeling Inc, where we believe that building your vision is our mission! We are a premier construction company with a passion for creating quality spaces that enhance your daily life. Whether you're dreaming of a new custom home or a stunning renovation our team of experienced professionals is here to guide you through every step of the process. Topaz Remodeling Inc. has been serving the community for 25 years and We believe that our family-owned status gives us a unique advantage in the construction industry, as we are able to provide a level of personal attention and care that larger, corporate companies simply cannot match We understand that each construction project is more than just a job; it's an investment in your home or business. That's why we take great pride in our work and are committed to delivering the highest level of quality and craftsmanship on every project we undertake.

"I had a very positive experience with this roofing team. They showed up on time, assessed the issues carefully, and worked efficiently without cutting corners. Throughout the project they kept the space clean and made sure everything was done safely and professionally. The finished roof looks great solid installation, clean lines, and clear attention to detail. I feel much more secure knowing the work was done properly. I'm genuinely satisfied with the entire process and would gladly hire them again for any future roofing needs. "

nichole s on January 2026

Welcome to Topaz Remodeling Inc, where we believe that building your vision is our mission! We are a premier construction company with a passion for creating quality spaces that enhance your daily life. Whether you're dreaming of a new custom home or a stunning renovation our team of experienced professionals is here to guide you through every step of the process. Topaz Remodeling Inc. has been serving the community for 25 years and We believe that our family-owned status gives us a unique advantage in the construction industry, as we are able to provide a level of personal attention and care that larger, corporate companies simply cannot match We understand that each construction project is more than just a job; it's an investment in your home or business. That's why we take great pride in our work and are committed to delivering the highest level of quality and craftsmanship on every project we undertake.

"I had a very positive experience with this roofing team. They showed up on time, assessed the issues carefully, and worked efficiently without cutting corners. Throughout the project they kept the space clean and made sure everything was done safely and professionally. The finished roof looks great solid installation, clean lines, and clear attention to detail. I feel much more secure knowing the work was done properly. I'm genuinely satisfied with the entire process and would gladly hire them again for any future roofing needs. "

nichole s on January 2026


Avatar for NRC Homes

NRC Homes

4.80(
20
)
Approved Pro

NRC Homes

4.80(
20
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
31 local quotes requested

We are a Seattle-based general contractor specializing in remodels and new home construction. We can transform your existing structure into the house of your dreams, build you a backyard cottage, or start from scratch to build you an entire new home. We do second-story additions, basement expansions, house lifting, and structural work. We can help you get the primary bedroom, bathroom, or kitchen that you've always wanted, and can make sure that your addition blends seamlessly with your existing structure. We can get you set up with architects and engineers to get your project started, and our team of professionals will get your project finished. We guide you through from start to finish: from demolition, framing, plumbing, electrical, drywall, and flooring all the way to finish carpentry, tile work, built-in cabinetry, and fine finishes.

"We had a great experience working with NRC Homes on a significant remodel as we prepared to move into our new home. They were highly organized, very communicative, and a pleasure to work with. Despite a tight timeline and several changes along the way (Due to changes from us), they delivered everything on time and were incredibly patient and flexible. We’re so grateful for their professionalism and would absolutely recommend them!"

Richard M on March 2025

We are a Seattle-based general contractor specializing in remodels and new home construction. We can transform your existing structure into the house of your dreams, build you a backyard cottage, or start from scratch to build you an entire new home. We do second-story additions, basement expansions, house lifting, and structural work. We can help you get the primary bedroom, bathroom, or kitchen that you've always wanted, and can make sure that your addition blends seamlessly with your existing structure. We can get you set up with architects and engineers to get your project started, and our team of professionals will get your project finished. We guide you through from start to finish: from demolition, framing, plumbing, electrical, drywall, and flooring all the way to finish carpentry, tile work, built-in cabinetry, and fine finishes.

"We had a great experience working with NRC Homes on a significant remodel as we prepared to move into our new home. They were highly organized, very communicative, and a pleasure to work with. Despite a tight timeline and several changes along the way (Due to changes from us), they delivered everything on time and were incredibly patient and flexible. We’re so grateful for their professionalism and would absolutely recommend them!"

Richard M on March 2025


Johnson and Sons Construction

4.97(
93
)
Approved Pro

Johnson and Sons Construction

4.97(
93
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
18 years of experience

We are a family owned & locally operated general construction / remodel company with over 60 combined years in the industry. Although we are general contractors and can do everything, we specialize in kitchen and bathroom remodeling. We have found that through proper communication and great listening our customers are more at ease and comfortable from beginning to end. It is our pleasure to provide top service in design assistance, material decisions, planning, demo and project completion. We go out of our way to uniquely tailor our service to each of our customers needs, wants and desires. We realize our customers invite us into their homes to provide the best service possible and we don't stop until we have done our best to help our customers turn their dreams into a reality. Thank you kindly for taking the time to look into Johnson and Sons Construction, LLC. We look forward to the opportunity to serve!

"I reached out to Johnson & Sons and several other contractors to discuss the possibility of opening up and completely remodeling my kitchen and bathrooms, with the addition of a shower to the former half bath off the master suite. After receiving bids and meeting with each contractor, I went with Johnson & Sons due to the transparency and consideration Vic Johnson showed when discussing the project and its challenges, as well as providing a detailed quote. Because this remodel involved the removal of walls, tiling of the kitchen/bathrooms, potential size constraints, and a re-plumbing of the house, It was very important for me that things be done correctly, to code and with permits. Once demo and construction started, things proceeded at a brisk pace with minimal lag between subcontractors, and inspections. Their tile guy, Tony was great to work with and very helpful with making the appropriate detail selections around the showers. We did have a long wait for a cosmetic piece of cabinet siding, which ended up being the final part needed to complete the project. Vic was direct with me about the issue and the delay. Such a minor issue is in my opinion, very small potatoes compared to having quality work done. Ultimately, Johnson & Sons came in slightly under their contract price - a very pleasant and welcome surprise."

William L on October 2025

We are a family owned & locally operated general construction / remodel company with over 60 combined years in the industry. Although we are general contractors and can do everything, we specialize in kitchen and bathroom remodeling. We have found that through proper communication and great listening our customers are more at ease and comfortable from beginning to end. It is our pleasure to provide top service in design assistance, material decisions, planning, demo and project completion. We go out of our way to uniquely tailor our service to each of our customers needs, wants and desires. We realize our customers invite us into their homes to provide the best service possible and we don't stop until we have done our best to help our customers turn their dreams into a reality. Thank you kindly for taking the time to look into Johnson and Sons Construction, LLC. We look forward to the opportunity to serve!

"I reached out to Johnson & Sons and several other contractors to discuss the possibility of opening up and completely remodeling my kitchen and bathrooms, with the addition of a shower to the former half bath off the master suite. After receiving bids and meeting with each contractor, I went with Johnson & Sons due to the transparency and consideration Vic Johnson showed when discussing the project and its challenges, as well as providing a detailed quote. Because this remodel involved the removal of walls, tiling of the kitchen/bathrooms, potential size constraints, and a re-plumbing of the house, It was very important for me that things be done correctly, to code and with permits. Once demo and construction started, things proceeded at a brisk pace with minimal lag between subcontractors, and inspections. Their tile guy, Tony was great to work with and very helpful with making the appropriate detail selections around the showers. We did have a long wait for a cosmetic piece of cabinet siding, which ended up being the final part needed to complete the project. Vic was direct with me about the issue and the delay. Such a minor issue is in my opinion, very small potatoes compared to having quality work done. Ultimately, Johnson & Sons came in slightly under their contract price - a very pleasant and welcome surprise."

William L on October 2025

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FAQs for addition to existing structure building service projects in Seattle, WA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Seattle, WA 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.