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Find Addition to existing structure builders in Northgate

Platinum General Construction LLC

6208 202nd St SW Unit 66
5.00(
6
)
Approved Pro

Platinum General Construction LLC

6208 202nd St SW Unit 66
5.00(
6
)
Approved Pro
Customers say: Quick response
9 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


"Allan was wonderful to work with. He was fantastic about communicating with us and did a stellar job of replacing my dining room floor and patching my walls after we had a pipe burst. We'd absolutely hire him again!"

Sora B on June 2022

Remodeling kitchen and bathroom , building deck and fence. Exterior painting in the summer , interior painting in winter, . Quality is my goal. 100% reponsabilyty is my nick name .

"Allan was wonderful to work with. He was fantastic about communicating with us and did a stellar job of replacing my dining room floor and patching my walls after we had a pipe burst. We'd absolutely hire him again!"

Sora B on June 2022


Avatar for Home Care Contractors, LLC

Home Care Contractors, LLC

10634 Riverside Dr E Ste 205
4.84(
19
)
Approved Pro

Home Care Contractors, LLC

10634 Riverside Dr E Ste 205
4.84(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
8 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 NW 1ST CONTRACTING LLC

NW 1ST CONTRACTING LLC

8411 State Route 92 Unit 2
5.00(
5
)
Approved Pro

NW 1ST CONTRACTING LLC

8411 State Route 92 Unit 2
5.00(
5
)
Approved Pro
Customers say: Quick response
14 local quotes requested
2 years of experience

NW 1ST CONTRACTING LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. With over a decade of remodeling experience, our pledge is to create successful relationships with our customers, employees, and community by building trust, treating every project with the utmost integrity, and exceeding expectations. We look forward to working with you!

"Great service."

Darrell O on May 2025

NW 1ST CONTRACTING LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. With over a decade of remodeling experience, our pledge is to create successful relationships with our customers, employees, and community by building trust, treating every project with the utmost integrity, and exceeding expectations. We look forward to working with you!

"Great service."

Darrell O on May 2025


Greg Appert Construction

15803 Gold Bar Drive
5.00(
1
)
Approved Pro

Greg Appert Construction

15803 Gold Bar Drive
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 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 ProWorks Enterprises

ProWorks Enterprises

PO Box 373
4.71(
21
)
Approved Pro

ProWorks Enterprises

PO Box 373
4.71(
21
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
8 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.

PO Box 1
4.58(
6
)
Approved Pro

Wylie Painting & Construction, Inc.

PO Box 1
4.58(
6
)
Approved Pro
Customers say: Quality work
16 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


Avatar for Seattle Style Remodel & Landscaping, Inc.

Seattle Style Remodel & Landscaping, Inc.

1420 NW Gilman Blvd #2166
4.83(
29
)
Approved Pro

Seattle Style Remodel & Landscaping, Inc.

1420 NW Gilman Blvd #2166
4.83(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

SSR is an industry leader with over 75 years of combined experience in our field. Our goal is to exceed your expectations of customer service, product quality, workmanship, and communication. SSR offers an array of services varying in size and scope. Our talented, dedicated team of experts is able to assist you from concept to completion. We have the experience and resources to handle the unique working conditions of the region and ensure timely completion of your project. Most importantly, we respect the fact that we are working in your home. For your safety and peace of mind, all of our experts are fully licensed and bonded. - SSR

"They did an extensive kitchen and master bath remodel and did excellent work."

Andrew S on April 2025

SSR is an industry leader with over 75 years of combined experience in our field. Our goal is to exceed your expectations of customer service, product quality, workmanship, and communication. SSR offers an array of services varying in size and scope. Our talented, dedicated team of experts is able to assist you from concept to completion. We have the experience and resources to handle the unique working conditions of the region and ensure timely completion of your project. Most importantly, we respect the fact that we are working in your home. For your safety and peace of mind, all of our experts are fully licensed and bonded. - SSR

"They did an extensive kitchen and master bath remodel and did excellent work."

Andrew S on April 2025


Johnson and Sons Construction

6618 Marine View Dr
4.93(
101
)
Approved Pro

Johnson and Sons Construction

6618 Marine View Dr
4.93(
101
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
47 local quotes requested

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


Avatar for A TO Z HOME REMODELING LLC

A TO Z HOME REMODELING LLC

1024 N 10TH PL SUITE 2446
5.00(
9
)
Approved Pro

A TO Z HOME REMODELING LLC

1024 N 10TH PL SUITE 2446
5.00(
9
)
Approved Pro
1 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.

"Very professional! Easy to work with. Always available, kitchen remodel done in a timely manner Excellent workmanship great crew. Will definitely hire them again for future projects. Nancy O."

Nancy O on May 2025

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.

"Very professional! Easy to work with. Always available, kitchen remodel done in a timely manner Excellent workmanship great crew. Will definitely hire them again for future projects. Nancy O."

Nancy O on May 2025

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

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 Northgate, 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.

  • 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.