Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Kirkland, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Kirkland

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
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 Lopez Bros Construction

Lopez Bros Construction

5.00(
9
)
Approved Pro

Lopez Bros Construction

5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

We’re committed to remodeling and to serving you with quality and value. We'll come to you, listen to your needs and wants, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long term customers time and time again, choosing us for all their remodeling needs. Call us today, and see what our commitment to quality is all about! We may not be related, but you’ll feel like we’re family. Our team is highly skilled and has years of experience. Most of all: they love planning, designing, and building and care about your project. We bring value to every interaction, and our customers love us. We promise to always provide value and outstanding service, regardless of your lifestyle need, design preference, or budget constraint.

"Highly recommend Lopez Bros Construction for any remodeling and major home repairs. We completed major home repair and remodeling, including bathroom shower repair and remodeling, Kitchen and Living Room ceiling/internal skylight enhancements, Interior and Deck Painting, and Basement Remodeling. Ray has been always going above and beyond in delivering the results. He will make sure the details and end results are perfect. His team's integrity is unquestionable, responsiveness and quality are top notch. Given the multiple projects he's dealing with, his crew still manage to get the repairs and remodeling done on time, as promised. I would hire Lopez Bros Construction again for my next project."

August W on June 2021

We’re committed to remodeling and to serving you with quality and value. We'll come to you, listen to your needs and wants, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long term customers time and time again, choosing us for all their remodeling needs. Call us today, and see what our commitment to quality is all about! We may not be related, but you’ll feel like we’re family. Our team is highly skilled and has years of experience. Most of all: they love planning, designing, and building and care about your project. We bring value to every interaction, and our customers love us. We promise to always provide value and outstanding service, regardless of your lifestyle need, design preference, or budget constraint.

"Highly recommend Lopez Bros Construction for any remodeling and major home repairs. We completed major home repair and remodeling, including bathroom shower repair and remodeling, Kitchen and Living Room ceiling/internal skylight enhancements, Interior and Deck Painting, and Basement Remodeling. Ray has been always going above and beyond in delivering the results. He will make sure the details and end results are perfect. His team's integrity is unquestionable, responsiveness and quality are top notch. Given the multiple projects he's dealing with, his crew still manage to get the repairs and remodeling done on time, as promised. I would hire Lopez Bros Construction again for my next project."

August W on June 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
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 RAINIER QUALITY RENOVATIONS LLC

RAINIER QUALITY RENOVATIONS LLC

5.00(
5
)
Approved Pro

RAINIER QUALITY RENOVATIONS LLC

5.00(
5
)
Approved Pro
11 years of experience
Free onsite estimate

Transform your home with Rainier Quality Renovations, your trusted partner on the Eastside of Washington. Fully licensed, bonded, and insured, we deliver peace of mind with every project. From stunning bathrooms and kitchens to whole-house remodels and new additions, our team brings your vision to life with exceptional craftsmanship and personalized care. Guided by our core values of excellence, integrity, customer satisfaction, and accountability, we're dedicated to creating the home of your dreams. With Rainier Quality Renovations, your remodeling journey is a collaborative and enjoyable experience that exceeds your expectations.

Transform your home with Rainier Quality Renovations, your trusted partner on the Eastside of Washington. Fully licensed, bonded, and insured, we deliver peace of mind with every project. From stunning bathrooms and kitchens to whole-house remodels and new additions, our team brings your vision to life with exceptional craftsmanship and personalized care. Guided by our core values of excellence, integrity, customer satisfaction, and accountability, we're dedicated to creating the home of your dreams. With Rainier Quality Renovations, your remodeling journey is a collaborative and enjoyable experience that exceeds your expectations.


Platinum General Construction LLC

5.00(
6
)
Approved Pro

Platinum General Construction LLC

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


Avatar for Treiber Building, LLC

Treiber Building, LLC

4.94(
8
)
Approved Pro

Treiber Building, LLC

4.94(
8
)
Approved Pro
Customers say: Quick response
9 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! Book with us online or feel free to give us a call today!

"I interviewed several contractors for my addition and addition and I chose Andrew because I felt like he was straightforward with the project and the risks that come with a remodel of an 80 year old house along with the primary suite addition. Through the design phase, we never felt pressured to make decisions, but were kept informed of the timing of the project and when we needed to make decisions in order to schedule the project in a way that minimized the impact to our family. Andrew walked us through each item in the contract and worked with us to make changes to fit our budget and kept us informed on what we could expect for changes for a project like ours. Once we were out on contract, Andrew helped push permits through county and kept us informed on what we could expect for duration and timing of the project. Once the work began, Andrew and his right hand man Rod worked efficiently and coordinated the project beautifully to minimize the amount of time that we were displaced from our home. Thoughtful suggestions were made to deal with the numerous issues that come with renovating an 80 year old house and Andrew supported my questions on cost impact and the criticality of each change to keep me informed so that we could make decisions that we felt comfortable with. Andrew and his team of subcontractors were all very friendly and respectful of our family, never making myself, my wife, or 3 kids feel unsafe at any time. Even with the changes to the scope of work, Andrew and his team made good on the timeline of the project, completing everything in 3-4 months as promised when we started. The layout and design of the remodel and addition have surpassed our expectations, everything that we did has really made our home both more beautiful and more functional. I would highly recommend Treiber Building and have done so to several family members and colleagues at work. The experience was as positive as I couldâ ve hoped and the results are outstanding."

William S on April 2023

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! Book with us online or feel free to give us a call today!

"I interviewed several contractors for my addition and addition and I chose Andrew because I felt like he was straightforward with the project and the risks that come with a remodel of an 80 year old house along with the primary suite addition. Through the design phase, we never felt pressured to make decisions, but were kept informed of the timing of the project and when we needed to make decisions in order to schedule the project in a way that minimized the impact to our family. Andrew walked us through each item in the contract and worked with us to make changes to fit our budget and kept us informed on what we could expect for changes for a project like ours. Once we were out on contract, Andrew helped push permits through county and kept us informed on what we could expect for duration and timing of the project. Once the work began, Andrew and his right hand man Rod worked efficiently and coordinated the project beautifully to minimize the amount of time that we were displaced from our home. Thoughtful suggestions were made to deal with the numerous issues that come with renovating an 80 year old house and Andrew supported my questions on cost impact and the criticality of each change to keep me informed so that we could make decisions that we felt comfortable with. Andrew and his team of subcontractors were all very friendly and respectful of our family, never making myself, my wife, or 3 kids feel unsafe at any time. Even with the changes to the scope of work, Andrew and his team made good on the timeline of the project, completing everything in 3-4 months as promised when we started. The layout and design of the remodel and addition have surpassed our expectations, everything that we did has really made our home both more beautiful and more functional. I would highly recommend Treiber Building and have done so to several family members and colleagues at work. The experience was as positive as I couldâ ve hoped and the results are outstanding."

William S on April 2023


J Construction, LLC

4.67(
3
)
Approved Pro

J Construction, LLC

4.67(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

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! Book with us online or feel free to give us a call today!

""

Andrew . on February 2020

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! Book with us online or feel free to give us a call today!

""

Andrew . on February 2020


Avatar for Norsk Design Build

Norsk Design Build

5.00(
2
)
Approved Pro

Norsk Design Build

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

Norsk Design Build offers the Seattle area the best of design, technology, craftsmanship, people and our unique design-build remodeling process to create the home of your dreams. We design your home remodeling project with care to engineer out surprises. From the moment you say "What if...", we seamlessly turn ideas into workable solutions, and build beautiful lifestyle spaces for today... and for tomorrow.

"Awesome experience -They had a great attention to detail"

Jared W on July 2020

Norsk Design Build offers the Seattle area the best of design, technology, craftsmanship, people and our unique design-build remodeling process to create the home of your dreams. We design your home remodeling project with care to engineer out surprises. From the moment you say "What if...", we seamlessly turn ideas into workable solutions, and build beautiful lifestyle spaces for today... and for tomorrow.

"Awesome experience -They had a great attention to detail"

Jared W on July 2020


Avatar for Seattle Style Remodel & Landscaping, Inc.

Seattle Style Remodel & Landscaping, Inc.

4.83(
29
)
Approved Pro

Seattle Style Remodel & Landscaping, Inc.

4.83(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 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


Avatar for Topaz Remodeling, Inc.

Topaz Remodeling, Inc.

5.00(
77
)
Approved Pro

Topaz Remodeling, Inc.

5.00(
77
)
Approved Pro
Customers say: Quality work
206 local quotes requested
11 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.

"Yoni and his team did an incredible job on our new composite deck and outdoor kitchen. He guided us through design ideas, helped us choose colors, and made sure every small detail came out perfect - from the black metal rails to the stone finishes. The space looks straight out of a magazine. Yoni was always easy to reach and made the whole process stress-free. Highly recommend Topaz for any outdoor renovation!"

vick h on November 2025

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.

"Yoni and his team did an incredible job on our new composite deck and outdoor kitchen. He guided us through design ideas, helped us choose colors, and made sure every small detail came out perfect - from the black metal rails to the stone finishes. The space looks straight out of a magazine. Yoni was always easy to reach and made the whole process stress-free. Highly recommend Topaz for any outdoor renovation!"

vick h on November 2025

...
Showing 1-10 of 1053
FAQs for addition to existing structure building service projects in Kirkland, 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 Kirkland, 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.