Top-rated second story addition builders.

Get matched with top second story addition builders in your area

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.

Second story addition builders in Seattle

Avatar for Renovate Construction, LLC
Renovate Construction, LLC
1523 NW Ballard Way
5.00(
13
)
Approved Pro
Renovate Construction, LLC
1523 NW Ballard Way
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

Renovate Design/Build is a woman-owned family business servicing the Greater Seattle Area. Each person on our team is an integral part of our company's success, providing excellent service and beautifully finished remodel projects for our clients. As a small business, every job is important to our team at Renovate - you are never just a number. Please call us today for a free consultation!

"We worked with Renovate from August 2024 through April 2025. Our experience was exceptional. Ross, Eric, and Jeremiah were efficient and effective, treating our project with great care. The Renovate team stands out in several ways: - Their pricing is transparent. We paid an hourly cost and subcontractor costs, plus a fixed mark-up, which aligned incentives. Amanda provided receipts and timesheets regularly. - They have superb attention to detail. They pointed out issues we might have missed and ensured they were fixed. - They were super responsive, encouraging us to text or email any time and often responding quickly. They kept us updated on the timeline and explained any delays. - They have a strong client focus. They addressed subcontractor errors quickly and reminded us to ask for what we wanted, even if non-standard. They provided recommendations but let us make the final decisions. We highly recommend the Renovate team. For our more detailed review, see Google."

Mark V on May 2025

Renovate Design/Build is a woman-owned family business servicing the Greater Seattle Area. Each person on our team is an integral part of our company's success, providing excellent service and beautifully finished remodel projects for our clients. As a small business, every job is important to our team at Renovate - you are never just a number. Please call us today for a free consultation!

"We worked with Renovate from August 2024 through April 2025. Our experience was exceptional. Ross, Eric, and Jeremiah were efficient and effective, treating our project with great care. The Renovate team stands out in several ways: - Their pricing is transparent. We paid an hourly cost and subcontractor costs, plus a fixed mark-up, which aligned incentives. Amanda provided receipts and timesheets regularly. - They have superb attention to detail. They pointed out issues we might have missed and ensured they were fixed. - They were super responsive, encouraging us to text or email any time and often responding quickly. They kept us updated on the timeline and explained any delays. - They have a strong client focus. They addressed subcontractor errors quickly and reminded us to ask for what we wanted, even if non-standard. They provided recommendations but let us make the final decisions. We highly recommend the Renovate team. For our more detailed review, see Google."

Mark V on May 2025


Avatar for Green Spaces Landscaping LLC
Green Spaces Landscaping LLC
7822 178th Pl NE
4.50(
122
)
Approved Pro
Green Spaces Landscaping LLC
7822 178th Pl NE
4.50(
122
)
Approved Pro
Customers say: Super punctual
252 local quotes requested
27 years of experience

Sustainability is at the heart of everything we do. As a steward of our outdoor environment we understand the important role we play. We ensure our work minimizes maintenance, water usage, material transportation, and waste. These principals guide all of our practices to ensure that the air, water, and soils are protected and enhanced. Our firm was founded years ago by Ryan Sarvis to create a turn-key landscaping company that could deliver the highest quality spaces with excellent communication and service to our clients. Ryan has an unrelenting love and passion for landscaping as a 3rd generation landscaper. His devotion to excellence in all areas of the client experience reverberates through all levels of our team. Our founding principles endure today and are at the heart of our operations. We use our in-house carpenters, stone masons, lighting/irrigation tech, and other landscaping craftsmen to ensure the best quality work that is implemented in a timely manner. By avoiding multiple subcontractors, we seamlessly complete projects that require multiple disciplines or facets without delays. Our craftsmen have been trained in the "Green Spaces Way". These sets of standards allow us to stand confidently behind our work with an industry best five-year warranty. Our multiple awards from 425 magazine, Angie's List, Houzz, and local industry groups are testaments to our diligence for the highest quality work and client satisfaction. Our reviews from various sites speak to the service that you should expect when investing in your home's outdoor space. Please contact our design team to learn all about the potential your outdoor space holds.

"The work they did is top notch, I love our patio and couldn't be happier with what they've done with the space. They did a lot of work for us over two months to build a patio and beautiful back yard. We love it. That said, our home is a 70+ year old house in Magnolia with concrete pipes. A year or so after they did the work we had a backup. After the plumbers came out they found that a section of the piping had been crushed by a large rock that had been set while they were regrading the area. The repairs were ~15k all said and done then. I contacted Ryan and he looked into their insurance covering it and they weren't going to do it out of pocket. I value my time more than money and I let it go, and Ryan had some guys come out and fix the area that had to be torn up for free, least they can do. Well after they were done the plumbers spotted another crushed section that lined up and should be 'okay'. Fast forward a year, it wasn't we had another backup. They cleared it and we just had it fixed with another 5k bill. Ryan had said they wouldn't do it for free but 'hours and material'. They didn't give me a quote I shrugged and assumed it would be a mornings worth of work. They came out and spent two days, and they just handed me a bill for another $3200, to clean up after damage they caused and I'm paying for."

Chris W on April 2024

Sustainability is at the heart of everything we do. As a steward of our outdoor environment we understand the important role we play. We ensure our work minimizes maintenance, water usage, material transportation, and waste. These principals guide all of our practices to ensure that the air, water, and soils are protected and enhanced. Our firm was founded years ago by Ryan Sarvis to create a turn-key landscaping company that could deliver the highest quality spaces with excellent communication and service to our clients. Ryan has an unrelenting love and passion for landscaping as a 3rd generation landscaper. His devotion to excellence in all areas of the client experience reverberates through all levels of our team. Our founding principles endure today and are at the heart of our operations. We use our in-house carpenters, stone masons, lighting/irrigation tech, and other landscaping craftsmen to ensure the best quality work that is implemented in a timely manner. By avoiding multiple subcontractors, we seamlessly complete projects that require multiple disciplines or facets without delays. Our craftsmen have been trained in the "Green Spaces Way". These sets of standards allow us to stand confidently behind our work with an industry best five-year warranty. Our multiple awards from 425 magazine, Angie's List, Houzz, and local industry groups are testaments to our diligence for the highest quality work and client satisfaction. Our reviews from various sites speak to the service that you should expect when investing in your home's outdoor space. Please contact our design team to learn all about the potential your outdoor space holds.

"The work they did is top notch, I love our patio and couldn't be happier with what they've done with the space. They did a lot of work for us over two months to build a patio and beautiful back yard. We love it. That said, our home is a 70+ year old house in Magnolia with concrete pipes. A year or so after they did the work we had a backup. After the plumbers came out they found that a section of the piping had been crushed by a large rock that had been set while they were regrading the area. The repairs were ~15k all said and done then. I contacted Ryan and he looked into their insurance covering it and they weren't going to do it out of pocket. I value my time more than money and I let it go, and Ryan had some guys come out and fix the area that had to be torn up for free, least they can do. Well after they were done the plumbers spotted another crushed section that lined up and should be 'okay'. Fast forward a year, it wasn't we had another backup. They cleared it and we just had it fixed with another 5k bill. Ryan had said they wouldn't do it for free but 'hours and material'. They didn't give me a quote I shrugged and assumed it would be a mornings worth of work. They came out and spent two days, and they just handed me a bill for another $3200, to clean up after damage they caused and I'm paying for."

Chris W on April 2024


Avatar for Final Touch Showroom Cabinet, Stone
Final Touch Showroom Cabinet, Stone
13850 Bel-Red RD
New on HomeAdvisorNew on Angi
Approved Pro
Final Touch Showroom Cabinet, Stone
13850 Bel-Red RD
New on AngiNew on HomeAdvisor
Approved Pro
1219 local quotes requested
3 years of experience

With FT Showroom & Design Center, experience the difference of a home crafted to be a masterpiece of sophistication and style. Let us take you on a journey from concept to completion, ensuring that every detail reflects your unique vision and lifestyle. We believe in ensuring that your home is more than just a living space; it showcases your vision, brought to life with our unparalleled expertise and passion for design. Experience and create with us, and see how we make your dream home a reality.

With FT Showroom & Design Center, experience the difference of a home crafted to be a masterpiece of sophistication and style. Let us take you on a journey from concept to completion, ensuring that every detail reflects your unique vision and lifestyle. We believe in ensuring that your home is more than just a living space; it showcases your vision, brought to life with our unparalleled expertise and passion for design. Experience and create with us, and see how we make your dream home a reality.


Avatar for Magical Forest General Contractor & Landscaping LLC
Magical Forest General Contractor & Landscaping LLC
5.00(
50
)
Approved Pro
Magical Forest General Contractor & Landscaping LLC
5.00(
50
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
659 local quotes requested

Here at Magical Forest General Contractor & Landscaping LLC, we sustain our business on quality and integrity. With over 10 years of experience we are experts in the Landscape Hardscaping trade specializing in retaining walls patio & much more. We are committed to quality from the beginning to the end of your project. We look forward to earning your business. WE DO NOT OFFER SYNTHETIC GRASS.

"Great Job!!"

Steve M on May 2025

Here at Magical Forest General Contractor & Landscaping LLC, we sustain our business on quality and integrity. With over 10 years of experience we are experts in the Landscape Hardscaping trade specializing in retaining walls patio & much more. We are committed to quality from the beginning to the end of your project. We look forward to earning your business. WE DO NOT OFFER SYNTHETIC GRASS.

"Great Job!!"

Steve M on May 2025


Avatar for KRAGENN CONTRACTORS LLC
KRAGENN CONTRACTORS LLC
1.00(
1
)
Approved Pro
KRAGENN CONTRACTORS LLC
1.00(
1
)
Approved Pro
81 local quotes requested
3 years of experience

Our team helps home owners design their bathroom to combine the best of functionality, aesthetics and comfort. We make your dream our mission. We are craftsmen with over 30 years of remodeling experience and are passionate about transforming ordinary spaces into havens of luxury and convenience.

"They started in mid-October and promised to be finished 12/15. They sort of finished 1/28. They promised me that all three of them would work on my projects simultaneously and that they would get everything done quickly. Instead, there was usually just one guy working on things. The shower pan that was installed in my walk-in shower was done incorrectly so it leaked for about a month before I caught it. They did come back to fix it. The measurement of my kitchen was so off that I had to send back two cabinets and purchase another cabinet to make things right. They screwed up the shower door installation in my main bath so badly that it was unusable. That was in January. They eventually came back in April to fix the messed up tile in that shower and said they'd be back in a couple of weeks to finish things up. They didn't offer to come back until last week. By that time, I had already had all the little things and the new shower door done."

Tammie D on June 2025

Our team helps home owners design their bathroom to combine the best of functionality, aesthetics and comfort. We make your dream our mission. We are craftsmen with over 30 years of remodeling experience and are passionate about transforming ordinary spaces into havens of luxury and convenience.

"They started in mid-October and promised to be finished 12/15. They sort of finished 1/28. They promised me that all three of them would work on my projects simultaneously and that they would get everything done quickly. Instead, there was usually just one guy working on things. The shower pan that was installed in my walk-in shower was done incorrectly so it leaked for about a month before I caught it. They did come back to fix it. The measurement of my kitchen was so off that I had to send back two cabinets and purchase another cabinet to make things right. They screwed up the shower door installation in my main bath so badly that it was unusable. That was in January. They eventually came back in April to fix the messed up tile in that shower and said they'd be back in a couple of weeks to finish things up. They didn't offer to come back until last week. By that time, I had already had all the little things and the new shower door done."

Tammie D on June 2025


Avatar for AllPro Remodeling Specialists LLC.
AllPro Remodeling Specialists LLC.
7727 Tyee Rd
5.00(
1
)
Approved Pro
AllPro Remodeling Specialists LLC.
7727 Tyee Rd
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
732 local quotes requested

AllPro Remodeling Specialists, LLC has the experience and knowledge necessary to make sure that your project is completed on time with quality service and workmanship. We will help you design your new space and we strive to complete each project on time and at or under budget. Our years of experience have given us the knowledge and skills needed to accomplish this from day one and throughout the duration of the project. Your satisfaction is important to us. Let us show you the difference true professionalism can mean to you. We are a family owned business and we want everything to be done 110%. It's all about the customer and what you want, plain and simple. Positive attitudes, responsible, reliable, fast and perfect! If you want professional work, positive attitudes, strive for perfection, clean work places, fast work and caring contractors, then you want us to do your work!

"Allpro/Shawn and crew did a couple of full house repair/remodel jobs for me with excellent results. Hard working, creative, honest!!!"

Don L on March 2024

AllPro Remodeling Specialists, LLC has the experience and knowledge necessary to make sure that your project is completed on time with quality service and workmanship. We will help you design your new space and we strive to complete each project on time and at or under budget. Our years of experience have given us the knowledge and skills needed to accomplish this from day one and throughout the duration of the project. Your satisfaction is important to us. Let us show you the difference true professionalism can mean to you. We are a family owned business and we want everything to be done 110%. It's all about the customer and what you want, plain and simple. Positive attitudes, responsible, reliable, fast and perfect! If you want professional work, positive attitudes, strive for perfection, clean work places, fast work and caring contractors, then you want us to do your work!

"Allpro/Shawn and crew did a couple of full house repair/remodel jobs for me with excellent results. Hard working, creative, honest!!!"

Don L on March 2024


Santos Landscaping & Maintenance LLC
-
5.00(
3
)
Approved Pro
Santos Landscaping & Maintenance LLC
-
5.00(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
88 local quotes requested

If you need a landscaping service provider, get in touch with Santos Landscaping & Maintenance LLC. High-quality services, really good prices and attitude which deserves admiration. We serve in Bremerton, WA, Tracyton WA; Port Orchard WA; Poulsbo WA; Vashon WA; Parkwood WA; and the surrounding areas. Landscaping Contractor, Landscaping, Lawn Care Companies, Affordable Landscaping, Four Seasons Lawn Care Landscaping Company, Quality Landscaping, Landscaping Specialist For more information visit our website: https://santoslandscapellc.com/

"Good."

Michael C on February 2023

If you need a landscaping service provider, get in touch with Santos Landscaping & Maintenance LLC. High-quality services, really good prices and attitude which deserves admiration. We serve in Bremerton, WA, Tracyton WA; Port Orchard WA; Poulsbo WA; Vashon WA; Parkwood WA; and the surrounding areas. Landscaping Contractor, Landscaping, Lawn Care Companies, Affordable Landscaping, Four Seasons Lawn Care Landscaping Company, Quality Landscaping, Landscaping Specialist For more information visit our website: https://santoslandscapellc.com/

"Good."

Michael C on February 2023


Avatar for NRC Homes
NRC Homes
12703 9th Ave NW
4.67(
27
)
Approved Pro
NRC Homes
12703 9th Ave NW
4.67(
27
)
Approved Pro
Customers say: Terrific value
215 local quotes requested
21 years of experience

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


Avatar for RICCON CONSTRUCTION LLC
RICCON CONSTRUCTION LLC
16821 72ND AVE NE
4.37(
19
)
Approved Pro
RICCON CONSTRUCTION LLC
16821 72ND AVE NE
4.37(
19
)
Approved Pro
Customers say: Quality work
758 local quotes requested
18 years of experience

Riccon Construction LLC is a Licensed & Insured General Contractor serving King & Snohomish County. We serve both residential and commercial customers and are listed with the Better Business Bureau. We offer quality craftsmanship at an affordable cost and treat every customer like family. We provide free estimates and are happy to meet you in person to discuss your next project.

"Fast, efficient and high quality workmanship. Jeff, Jon and their team were highly communicative and knowledgeable about our home remodel project. Will definitely be using them again!"

Bella K on February 2024

Riccon Construction LLC is a Licensed & Insured General Contractor serving King & Snohomish County. We serve both residential and commercial customers and are listed with the Better Business Bureau. We offer quality craftsmanship at an affordable cost and treat every customer like family. We provide free estimates and are happy to meet you in person to discuss your next project.

"Fast, efficient and high quality workmanship. Jeff, Jon and their team were highly communicative and knowledgeable about our home remodel project. Will definitely be using them again!"

Bella K on February 2024


Avatar for Luxury Bath of Seattle Inc
Luxury Bath of Seattle Inc
18388 REDMOND WAY
4.42(
60
)
Approved Pro
Luxury Bath of Seattle Inc
18388 REDMOND WAY
4.42(
60
)
Approved Pro
Customers say: Quality work
1608 local quotes requested
24 years of experience

Are you looking for home improvement or bathroom remodeling advice? Luxury Bath is privately owned and been in business for over 15 years. It is the number one trusted resource for customers looking to update their bathroom or have a complete bathroom remodel. If you’re wanting advice on how to make your bathroom larger, how to remodel on a budget, or even looking for a local bathroom remodeler, Luxury Bath has the answers to all your remodeling questions. Open showroom available in Redmond too!!!!

"The people at Luxury Bath were knowledgeable about what would fit our space and needs. They helped with the planning and placement of the shower, window, cupboards, and bidet in our complete bathroom remodel. Their quote was very reasonable. They were able to do each of the jobs without hiring an outside contractor. They were very timely, committed to our project from start to finish. We were able to do the major renovation within two weeks. The workers were very courteous, friendly, and were able to answer questions we had. They gave us the present of a beautiful new bathroom, satisfying. Our needs is aging adults."

Janet J on March 2025

Are you looking for home improvement or bathroom remodeling advice? Luxury Bath is privately owned and been in business for over 15 years. It is the number one trusted resource for customers looking to update their bathroom or have a complete bathroom remodel. If you’re wanting advice on how to make your bathroom larger, how to remodel on a budget, or even looking for a local bathroom remodeler, Luxury Bath has the answers to all your remodeling questions. Open showroom available in Redmond too!!!!

"The people at Luxury Bath were knowledgeable about what would fit our space and needs. They helped with the planning and placement of the shower, window, cupboards, and bidet in our complete bathroom remodel. Their quote was very reasonable. They were able to do each of the jobs without hiring an outside contractor. They were very timely, committed to our project from start to finish. We were able to do the major renovation within two weeks. The workers were very courteous, friendly, and were able to answer questions we had. They gave us the present of a beautiful new bathroom, satisfying. Our needs is aging adults."

Janet J on March 2025

...
Showing 1-10 of 913

FAQs for second story addition building service projects in Seattle, WA

Converting a vaulted ceiling into a second floor requires three to six months from planning to completion. The process begins with several weeks of design and engineering, followed by permit applications, which vary in processing time by location. 

Construction itself spans several months, including framing, systems installation, and finishing work. Weather conditions, contractor availability, and inspection schedules can all influence your project timeline.

Several factors could make your conversion challenging or impossible. Inadequate roof support structures, insufficient foundation capacity, or problematic truss configurations might require prohibitively expensive modifications. 

Some homes lack the minimum ceiling height (12 feet at the lowest point) needed for functional second-floor spaces. Building code restrictions in your area might also limit conversion possibilities, particularly in historic districts or homes with specific architectural designations.

Begin with professional assessments from both an architect and a structural engineer who will evaluate your home's specific characteristics. They'll examine existing framing, measure available headroom, assess load-bearing capacity, and identify potential obstacles like HVAC ducts or plumbing vents. 

These experts will also review local building codes to determine feasibility. Their preliminary analysis provides crucial information about structural requirements and potential limitations before you commit to the project.

Whether you'll need temporary housing depends on several factors, including the project's scope and your tolerance for construction disruption. Major structural work creates significant noise, dust, and potential utility interruptions that many families find challenging to live with. Safety concerns may also arise during certain construction phases. 

Some homeowners successfully remain by isolating the construction zone and establishing clear work schedules. Discuss living arrangements with your contractor early in the planning process to make informed decisions.

The Seattle, WA homeowners’ guide to second story addition building services
From average costs to expert advice, get all the answers you need to get your job done.
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
Jun 10, 2025
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.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
Share project details to get started.