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Find Second story addition builders in Sammamish

Avatar for Sentri Homes

Sentri Homes

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Approved Pro

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1705 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


BOYCE CONSTRUCTION

1.00(
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BOYCE CONSTRUCTION

1.00(
1
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AGMS Inc

No reviews yet

AGMS Inc

No reviews yet
15 years of experience

We are a professional company with over 20 years experience in the contracting, painting, and janitorial industries. We personally manage every job and carry out the majority of work ourselves. We also use a small network of contractors who have been tried and tested, and who also provide the same high standard of workmanship & service that AGMS Inc offers.

We are a professional company with over 20 years experience in the contracting, painting, and janitorial industries. We personally manage every job and carry out the majority of work ourselves. We also use a small network of contractors who have been tried and tested, and who also provide the same high standard of workmanship & service that AGMS Inc offers.


Bachtel Electric LLC

No reviews yet

Bachtel Electric LLC

No reviews yet
12 years of experience

Electrical construction and service. Commercial /residential. All payment methods accepted.

Electrical construction and service. Commercial /residential. All payment methods accepted.


Avatar for Brookside Electric LLC

Brookside Electric LLC

5.00(
3
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Brookside Electric LLC

5.00(
3
)
Customers say: Quick response
20 years of experience

Proudly family-owned and operated for over 40 years, we provide top-quality electrical contracting services for both residential and commercial projects. Our experienced team is dedicated to safety, reliability, and exceptional craftsmanship, ensuring every job is done right the first time. Whether you need expert troubleshooting, new installations, or upgrades, we bring decades of trusted service to your home or business.

"Great guys to work with, very professional. When other companies were weeks even months out , they were there the next day. Will call them back for future projects."

Bob s on May 2024

Proudly family-owned and operated for over 40 years, we provide top-quality electrical contracting services for both residential and commercial projects. Our experienced team is dedicated to safety, reliability, and exceptional craftsmanship, ensuring every job is done right the first time. Whether you need expert troubleshooting, new installations, or upgrades, we bring decades of trusted service to your home or business.

"Great guys to work with, very professional. When other companies were weeks even months out , they were there the next day. Will call them back for future projects."

Bob s on May 2024


All West Construction

5.00(
1
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All West Construction

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Allwest Construction has been serving the Thurston County area for over 15 years. Customer experience is very personal and important to us. Our main focus is attention to detail and craftsmanship in order to make our work last for generations. Whether it be small tasks such as drywall and plumbing repair or a custom home or home remodel. Allwest construction does every task right the first time and the last time. No corners are cut and your contractor will be there every step of the way working along with his employees to insure 100% satisfaction in the final product.

Allwest Construction has been serving the Thurston County area for over 15 years. Customer experience is very personal and important to us. Our main focus is attention to detail and craftsmanship in order to make our work last for generations. Whether it be small tasks such as drywall and plumbing repair or a custom home or home remodel. Allwest construction does every task right the first time and the last time. No corners are cut and your contractor will be there every step of the way working along with his employees to insure 100% satisfaction in the final product.


Avatar for Shaffer Custom Stone & Tile

Shaffer Custom Stone & Tile

5.00(
5
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Shaffer Custom Stone & Tile

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Rich Shaffer has worked as a Master craftsman and artisan for the past 20 years. Rich is based in Kirkland, Washington, but his one of a kind custom tile and stone installations are featured in many of the finest homes in Seattle, the East side and throughout the Pacific Northwest. (including Vancouver and Victoria B.C. Canada). Rich is also a licensed contractor and can remodel your entire kitchen or bathroom for a one of a kind dream update or renovation.

Rich Shaffer has worked as a Master craftsman and artisan for the past 20 years. Rich is based in Kirkland, Washington, but his one of a kind custom tile and stone installations are featured in many of the finest homes in Seattle, the East side and throughout the Pacific Northwest. (including Vancouver and Victoria B.C. Canada). Rich is also a licensed contractor and can remodel your entire kitchen or bathroom for a one of a kind dream update or renovation.


Terrain Build, Inc.

No reviews yet

Terrain Build, Inc.

No reviews yet
16 years of experience

Terrain's mission is to help you realize the outdoor living space that you desire to extend your home beyond the walls of the house. Fine stonework and carpentry is our passion. Your happiness and quality of life is our goal. We offer complete landscape construction services.

Terrain's mission is to help you realize the outdoor living space that you desire to extend your home beyond the walls of the house. Fine stonework and carpentry is our passion. Your happiness and quality of life is our goal. We offer complete landscape construction services.


Avatar for I.D. Granite, Tile, LLC

I.D. Granite, Tile, LLC

5.00(
6
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I.D. Granite, Tile, LLC

5.00(
6
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I. D. Granite Tile, LLC, has been in business since 2006. Ivan having over 6 years in the granite, marble,tile flooring industry. Serving the greater Auburn, Seattle, WA area. Call Ivan today for a professional experience dealing with your, granite, marble kitchen countertops,bathroom vanities, bars ets.needs.

"Totally satisfied with the beautiful work done on the quartz counter tops as well as the gracious professional manner Ivan conducted himself. I would and have referred others to him !"

Audrey ? on September 2023

I. D. Granite Tile, LLC, has been in business since 2006. Ivan having over 6 years in the granite, marble,tile flooring industry. Serving the greater Auburn, Seattle, WA area. Call Ivan today for a professional experience dealing with your, granite, marble kitchen countertops,bathroom vanities, bars ets.needs.

"Totally satisfied with the beautiful work done on the quartz counter tops as well as the gracious professional manner Ivan conducted himself. I would and have referred others to him !"

Audrey ? on September 2023


Avatar for Decker Industries

Decker Industries

No reviews yet

Decker Industries

No reviews yet
36 years of experience

General remodel contractor with 50 years of experience, specializing in kitchens and decks.

General remodel contractor with 50 years of experience, specializing in kitchens and decks.

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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.