Top-rated second story addition builders.

Get matched with top second story addition builders in Sammamish, 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.

Second story addition builders in Sammamish

Avatar for Emanuel Remodeling LLC

Emanuel Remodeling LLC

5.00(
8
)
Approved Pro

Emanuel Remodeling LLC

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
538 local quotes requested

We are a custom remodeling Company serving Washington State residential and commercial projects, registered business with professional workers. Hire us for bathroom, kitchen and living projects. Full remodel experienced company based in the Seattle Area. Working on residential and commercials projects. We cover all areas of a remodel job, as we declaring our competencies are wide, our possibilities are too: no job is too small, no job is too big. Let's meet and talk about your new project.

"Daniel and Team were professional from Day 1. Clear and timely communication through out the entire project was very helpful and the end results speak for themselves! The bathroom turned out so beautiful and functional! Everyone in the house and guests love it. The team was punctual everyday, on time, did not miss a day. We did not need to any follow ups because the team kept giving updates at every step. All the little details are handled meticulously and more. Emmanuel Remodeling LLC made a stressful remodel project a delightful team project!"

Sravanthi N on August 2024

We are a custom remodeling Company serving Washington State residential and commercial projects, registered business with professional workers. Hire us for bathroom, kitchen and living projects. Full remodel experienced company based in the Seattle Area. Working on residential and commercials projects. We cover all areas of a remodel job, as we declaring our competencies are wide, our possibilities are too: no job is too small, no job is too big. Let's meet and talk about your new project.

"Daniel and Team were professional from Day 1. Clear and timely communication through out the entire project was very helpful and the end results speak for themselves! The bathroom turned out so beautiful and functional! Everyone in the house and guests love it. The team was punctual everyday, on time, did not miss a day. We did not need to any follow ups because the team kept giving updates at every step. All the little details are handled meticulously and more. Emmanuel Remodeling LLC made a stressful remodel project a delightful team project!"

Sravanthi N on August 2024


Avatar for 360 House Remodeling

360 House Remodeling

16232 Bothell Everett Highway
5.00(
7
)
Approved Pro

360 House Remodeling

16232 Bothell Everett Highway
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
218 local quotes requested

We are a family-owned business serving Washington, with two parents leading the company alongside our 3 young, motivated children. Our priority is providing high-quality work and ensuring your complete satisfaction throughout the entire remodeling process. Let our family help yours! We offer free design & consultations to get your project started. Call us today!

"I found this company online and called them for a quote. They finished the job quickly and did a great job. They communicated well, always responding to my texts and emails. They did tile work, painting, and put in a new shower. I’m super happy with their professionalism and how everything turned out!"

Genta H on September 2024

We are a family-owned business serving Washington, with two parents leading the company alongside our 3 young, motivated children. Our priority is providing high-quality work and ensuring your complete satisfaction throughout the entire remodeling process. Let our family help yours! We offer free design & consultations to get your project started. Call us today!

"I found this company online and called them for a quote. They finished the job quickly and did a great job. They communicated well, always responding to my texts and emails. They did tile work, painting, and put in a new shower. I’m super happy with their professionalism and how everything turned out!"

Genta H on September 2024


Excel General Contractor, LLC

P O Box 1350
4.60(
86
)
Approved Pro

Excel General Contractor, LLC

P O Box 1350
4.60(
86
)
Approved Pro
Customers say: Quality work
478 local quotes requested
50 years of experience

Excel General Contractor is a full service home remodeling and construction contractor. We offer a high level of customer service while maintaining fair pricing. Our team is small enough that you get individualized attention but big enough to get your project done effectively and efficiently. We do all projects from small repairs and renovations up to designing and building you a complete new custom home.

"Nate allowed me to order my bathtub myself, which was nice. Lowe's failing to deliver when promised, was not. This delayed the start, and although it did take longer than I expected, everything came out great. They did not charge me extra after the water damage was exposed, which was a relief. One of the other estimates I got from a general contractor was for 3x as much, AND they planned to add on after the wall was opened. The bathroom specialists wanted 150% of what we paid, and I think we ended up with better results."

Christopher B on March 2025

Excel General Contractor is a full service home remodeling and construction contractor. We offer a high level of customer service while maintaining fair pricing. Our team is small enough that you get individualized attention but big enough to get your project done effectively and efficiently. We do all projects from small repairs and renovations up to designing and building you a complete new custom home.

"Nate allowed me to order my bathtub myself, which was nice. Lowe's failing to deliver when promised, was not. This delayed the start, and although it did take longer than I expected, everything came out great. They did not charge me extra after the water damage was exposed, which was a relief. One of the other estimates I got from a general contractor was for 3x as much, AND they planned to add on after the wall was opened. The bathroom specialists wanted 150% of what we paid, and I think we ended up with better results."

Christopher B 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
488 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 Earths Element

Earths Element

23043 SE 21st St.
4.89(
9
)
Approved Pro

Earths Element

23043 SE 21st St.
4.89(
9
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
303 local quotes requested

We specialize in all phases of landscaping, hardscaping, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They were on time and worked quickly. I felt the price was reasonable and plan to have them quote my next project. They were polite and cleaned up after the installation was completed. Good job!"

Linda Z on August 2025

We specialize in all phases of landscaping, hardscaping, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They were on time and worked quickly. I felt the price was reasonable and plan to have them quote my next project. They were polite and cleaned up after the installation was completed. Good job!"

Linda Z on August 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
206 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 Five Star Bath Solutions of North Seattle

Five Star Bath Solutions of North Seattle

15300 Redmond - Woodinville Rd NE Unit I6
5.00(
5
)
Approved Pro

Five Star Bath Solutions of North Seattle

15300 Redmond - Woodinville Rd NE Unit I6
5.00(
5
)
Approved Pro
545 local quotes requested
29 years of experience

At Five Star Bath Solutions, we focus solely on the bathroom so you can get the best experience possible. Specializing our work means that we have more time to focus on each project and much more experience in doing that type of remodeling. We are experts in Shower and Tub Conversions, Bath Remodel, Bath & Shower Combo, New Shower Safety & Accessibility Walk-In Baths.

At Five Star Bath Solutions, we focus solely on the bathroom so you can get the best experience possible. Specializing our work means that we have more time to focus on each project and much more experience in doing that type of remodeling. We are experts in Shower and Tub Conversions, Bath Remodel, Bath & Shower Combo, New Shower Safety & Accessibility Walk-In Baths.


Avatar for Skyline Builders WA INC

Skyline Builders WA INC

123 Main St.
5.00(
8
)
Approved Pro

Skyline Builders WA INC

123 Main St.
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2139 local quotes requested

At Skyline Builders WA, we uphold the core values of honesty, reliability, and superior craftsmanship. Established in 2019, we specialize in transforming bathrooms and kitchens, bringing our expertise to Bellevue and the wider King County area as trusted general contractors. Licensed by the Washington State Board, our unwavering commitment to ensuring 100% customer satisfaction propels every project forward, guaranteeing a journey devoid of surprises or disappointments.

"Well, here is a contractor story you don’t always hear. My bathroom was remodeled late last year. Unfortunately, my tub started leaking into my neighbors condo. I texted Tony and heard back in 15 minutes. A crew was by the next day and it was fixed without questions and at no cost to me. This company has integrity, pride and excellent customer service. You will not be disappointed!!!!"

Rebecca H on May 2025

At Skyline Builders WA, we uphold the core values of honesty, reliability, and superior craftsmanship. Established in 2019, we specialize in transforming bathrooms and kitchens, bringing our expertise to Bellevue and the wider King County area as trusted general contractors. Licensed by the Washington State Board, our unwavering commitment to ensuring 100% customer satisfaction propels every project forward, guaranteeing a journey devoid of surprises or disappointments.

"Well, here is a contractor story you don’t always hear. My bathroom was remodeled late last year. Unfortunately, my tub started leaking into my neighbors condo. I texted Tony and heard back in 15 minutes. A crew was by the next day and it was fixed without questions and at no cost to me. This company has integrity, pride and excellent customer service. You will not be disappointed!!!!"

Rebecca H on May 2025


Avatar for ATG Built

ATG Built

8230 S. 192 St.
5.00(
4
)
Approved Pro

ATG Built

8230 S. 192 St.
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
489 local quotes requested

ATG Built has been a trusted authority in Kitchen and Bathroom remodeling throughout the Greater Seattle area for over 11 years. Our expertise extends to a wide variety of services, catering to full home renovations, bathroom and kitchen remodels, and additions. Our comprehensive offerings includes securing permits, design, structural changes such as wall removal and beam installation, layout modifications, roofing, siding, staircase enhancements, heated floor installations, electrical work, mechanical systems, HVAC, plumbing, drywall, and the installation of custom or budget-friendly builder-grade cabinets and countertops. We take care of every aspect of your project, illuminating often overwhelming experience of coordinating with multiple contractors. Our one-on-one approach with each customer ensures that every detail is precise to industry standards. Prior to commencing your remodel, we offer a complimentary onsite estimate conducted by our project manager that helps to determine the necessary scope of work for your project. Following the onsite assessment, we encourage you to schedule an appointment in our showroom, where you can explore our selections. Our staff will guide you through the entire remodeling process, offering a various selections of stone, tile, and cabinet samples tailored to your project needs. In-house designers are available to assist you in making selections within your budget. Additionally, we specialize in in-house fabrication and installation of custom kitchen countertops, islands, vanities, and more. Our experienced team ensures a seamless project progression, addressing your inquiries and coordinating critical project tasks. ATG offers competitive and budget-friendly pricing, ensuring that your renovation goals are within reach. We look forward to working with you, and transform your dreams into reality. Additional phone number: (253)290-1963.

"Atlantic Tile & Granite did a great job on our kitchen countertops and island in our old house in 2013, so we had them to do the countertops and island for our newly built house (2023) as well. Once again, the outcome was nothing less than fantastic."

Scott W on August 2023

ATG Built has been a trusted authority in Kitchen and Bathroom remodeling throughout the Greater Seattle area for over 11 years. Our expertise extends to a wide variety of services, catering to full home renovations, bathroom and kitchen remodels, and additions. Our comprehensive offerings includes securing permits, design, structural changes such as wall removal and beam installation, layout modifications, roofing, siding, staircase enhancements, heated floor installations, electrical work, mechanical systems, HVAC, plumbing, drywall, and the installation of custom or budget-friendly builder-grade cabinets and countertops. We take care of every aspect of your project, illuminating often overwhelming experience of coordinating with multiple contractors. Our one-on-one approach with each customer ensures that every detail is precise to industry standards. Prior to commencing your remodel, we offer a complimentary onsite estimate conducted by our project manager that helps to determine the necessary scope of work for your project. Following the onsite assessment, we encourage you to schedule an appointment in our showroom, where you can explore our selections. Our staff will guide you through the entire remodeling process, offering a various selections of stone, tile, and cabinet samples tailored to your project needs. In-house designers are available to assist you in making selections within your budget. Additionally, we specialize in in-house fabrication and installation of custom kitchen countertops, islands, vanities, and more. Our experienced team ensures a seamless project progression, addressing your inquiries and coordinating critical project tasks. ATG offers competitive and budget-friendly pricing, ensuring that your renovation goals are within reach. We look forward to working with you, and transform your dreams into reality. Additional phone number: (253)290-1963.

"Atlantic Tile & Granite did a great job on our kitchen countertops and island in our old house in 2013, so we had them to do the countertops and island for our newly built house (2023) as well. Once again, the outcome was nothing less than fantastic."

Scott W on August 2023


Avatar for GMG CONSTRUCTION, INC.

GMG CONSTRUCTION, INC.

23210 57th Ave W
4.33(
75
)
Approved Pro

GMG CONSTRUCTION, INC.

23210 57th Ave W
4.33(
75
)
Approved Pro
Customers say: Quality work
593 local quotes requested
27 years of experience

We are a full-service, custom, complete home improvement, remodeling and renovation specialist contractor, based in Seattle. GMG Construction has been providing general contracting services for nearly two decades in Seattle and the surrounding areas. By combining innovative design, unsurpassed craftsmanship and a personal approach to each project, we help our clients create the home of their dreams.

"When Ballard came out to give an estimate, he was very nice and knew his business. We noticed he did not take notes and said we would get the estimate in a week. After 2 weeks I emailed to ask for the estimate, and was told it would come that weekend. Another 2 weeks went by and I finally got it after yet another email. The estimate was missing some items. After all this we felt we were not valued customers and went with another company."

Corinne L on January 2021

We are a full-service, custom, complete home improvement, remodeling and renovation specialist contractor, based in Seattle. GMG Construction has been providing general contracting services for nearly two decades in Seattle and the surrounding areas. By combining innovative design, unsurpassed craftsmanship and a personal approach to each project, we help our clients create the home of their dreams.

"When Ballard came out to give an estimate, he was very nice and knew his business. We noticed he did not take notes and said we would get the estimate in a week. After 2 weeks I emailed to ask for the estimate, and was told it would come that weekend. Another 2 weeks went by and I finally got it after yet another email. The estimate was missing some items. After all this we felt we were not valued customers and went with another company."

Corinne L on January 2021

...
Showing 1-10 of 940
FAQs for second story addition building service projects in Sammamish, WA

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Sammamish, 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.

  • 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.