Find a foundation contractor in Seattle, WA

Find foundation companies in Seattle, WA

Find foundation companies in Seattle, WA

Confirm your location to see the best foundation contractors near you.
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Find foundation companies in Seattle, WA

Confirm your location to see the best foundation contractors near you.
Zip code

Top 10 foundation contractors in Seattle, WA

Homeowners agree: these Seattle foundation companies are highly rated for knowledge, experience, communication, and more.
Wafa Masonry And Chimany Services

Wafa Masonry And Chimany Services

1 hire on HomeGuide
25+ years in business
Serves Seattle, WA
20 years experience licensed bonded insured ›Build and Repair Services ›Chimney & Fire place, Chimney sweeps, ›Brick, Block, Culture Stone ›Pavers, Retaining wall ›Tiles, Marbles, Ceramic, pressure washing ›And much more in your Home build or repair...
Love Construction

Love Construction

5.0Exceptional(6)
2 hires on HomeGuide
6+ years in business
Serves Seattle, WA & Online
Sean M. says, " Positive: Professionalism, Punctuality, Quality Built a wonderful cedar fence for our home. Skilled carpenters and very easy to work with." Read more
Gray’s Landscaping And Painting

Gray’s Landscaping And Painting

5.0(1)
3 hires on HomeGuide
9+ years in business
Serves Seattle, WA
Naoko T. says, "The landscaper did an amazing job! He was very prompt and had great attention to detail. He also took time to explain to detail how to keep my yard looking great. He got the job done quick but he had amazing attention to detail and added some nice detailing that makes my yard look superb. I am extremely happy with his quality of work and recommend him to anyone! " Read more
Hen`s Dry Servises

Hen`s Dry Servises

33+ years in business
Serves Seattle, WA
At Hen's Dry Services, we are your trusted partners for all your home improvement and property management needs in Renton, WA. With a team of 10 dedicated professionals, we specialize in a wide array of services including drywall repair, exterior and interior painting, demolition, general contracting, and deck remodeling. Whether it's tile installation, fence repair, or a complete bathroom remodel, we handle each project with precision and care. Our goal is to enhance your living spaces while ensuring exceptional quality and customer satisfaction. Let us bring your vision to life!
Pnw Landscape & Construction

Pnw Landscape & Construction

Serves Seattle, WA
We are a small family landscape company with over 12 years of experience ., we take pride in our work . coming from a carpenter trade and experience with previous landscape companies has brought us to overcome and achieve projects .
SQ Construction

SQ Construction

1 hire on HomeGuide
6+ years in business
Serves Seattle, WA
Our name says it all, SQ construction where Safety and Quality is our number 1 priority! We thrive to provide the best sevices that'll leave our customers satisfied and us proud of the work we've done. There's nothing better then finishing a job and seeing a smile on the customers face, and we know all about that.
Washington State General Contracting

Washington State General Contracting

5.0(1)
3 hires on HomeGuide
14+ years in business
Serves Seattle, WA & Online
Steve K. says, "They did an amazing job! Walked me and my wife through the entire project and everything was done just as they had explained! Thank you so much!" Read more
GRAVITY BUILDERS LLC

GRAVITY BUILDERS LLC

8+ years in business
Serves Seattle, WA
With Great quality Craftsmanship and Excellent customer service we completely cater to your needs 100%. From the most complicated to the simplest we do it all The Customers Satisfaction when the project has been completed.
Taylor Pro Construction

Taylor Pro Construction

1 hire on HomeGuide
16+ years in business
Serves Seattle, WA & Online
I’m business since 2009 5 star google rating We specialize in custom homes but like projects like these to help fill in the gap for employees. Do you have time for a phone call ? Ben Leske Taylor PRO Construction 253-202-3355
Nothing Too Big Concrete

Nothing Too Big Concrete

6 hires on HomeGuide
11+ years in business
Serves Seattle, WA
We give our customers great workmanship and keep them satisfied with our products. Been during concrete work for over 25 years. We do all type of concrete work. From slaps, driveways, steps, sidewalks, retaining walls, foundations work, and etc. We have great referrals.

Your Foundation Contractors questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

How much does it cost to install a foundation?

The cost to install a foundation depends on the type of foundation installed. The most common types of foundations are concrete slabs, pier and beam, crawl space, and basement foundations.

  • A concrete slab foundation costs about $6 to $12 per square foot for a single, poured concrete slab that rests on the ground.
  • A pier and beam foundation costs $8 to $15 per square foot and is made up of concrete or metal piers supported by beams. These foundations are common in areas with sandy or unstable soil.
  • A crawl space foundation costs $15 to $18 per square foot for the elevated foundation with enough space to crawl through. These foundations are common in warmer climates where the frost line is not deep or on sloping lots since they don't require as much excavation as other foundations.
  • A basement foundation is the most expensive at $35 to $50 per square foot. This foundation provides the most space and flexibility. A finished basement foundation can double the living space of a home.

Do you install septic before a foundation?

Yes, you generally install the septic system before pouring the foundation for a new home. The leach field and septic tank need to be located in a specific area of the property and this is easier to do before the foundation is in place. Installing septic first also allows you to have water available on-site during construction.

How much does it cost to fill in a crawl space?

Filling in a crawl space or crawl space encapsulation costs $3,000 to $8,000. Prices include basic cleaning, minor repairs, mold removal, and installing a vapor barrier, a sump pump, new insulation, and a dehumidifier. The total project cost depends on the condition and size of your crawl space, the type of insulation you choose, the thickness of the vapor barrier, and the pump and dehumidifier installed.

Crawl space encapsulation prevents excess moisture, mold growth, radon gas poisoning, and pest infestation. The process also helps alleviate allergens and pollutants to improve air quality. Another benefit of crawl space encapsulation is better insulation that can reduce energy bills by up to 20%.

How long does a poured concrete foundation last?

A poured concrete foundation can last for 80-100 years or more if it is properly constructed and well-maintained. However, a number of factors can affect the lifespan of a concrete foundation, including the quality of the concrete mix and the workmanship, the climate and soil conditions, and the amount of weight the foundation is supporting.

Some of the most common reasons a foundation fails include:

  • Poor drainage
  • Frost heave
  • Tree root invasion
  • Earthquakes and other seismic activity

How deep does a concrete foundation need to be?

Generally, a concrete foundation needs to be at least 12 inches deep to ensure the foundation is below the frost line and can support the weight of the structure. In some cases, a deeper foundation is required. If you are building in an area with a high frost line, poor soil quality, or building a very heavy structure, you may need to dig deeper.

A qualified structural engineer can help determine the appropriate depth for your concrete foundation.

What questions should I ask a foundation contractor?

Here are some questions you can ask a foundation contractor to ensure you are making the best choice for your project:

  • Is your company licensed, bonded, and insured for foundations?
  • How long have you been pouring foundations in my area?
  • What experience do you have installing my preferred foundation type?
  • What does your estimate include?
  • How long will the foundation take to install?
  • Do you have past clients I can contact or a current job site I can visit?
  • Do you offer a written estimate, contract, and timeline for the job?
  • What happens if the foundation is delayed due to weather or other unforeseen circumstances?

How do I choose a foundation contractor?

Selecting and pouring a foundation is one of the most important steps in building your new home. Choose the best foundation contractor by following these steps:

  • Get at least 3 estimates with the same foundation type to compare costs.
  • Confirm the contractor's experience with your preferred type of foundation.
  • Make sure the contractor is licensed, bonded, and insured, with 5 years of experience.
  • Look for foundation contractors with good reviews on HomeGuide and Google.
  • Ask for references from past clients and follow up to get their opinion on the work quality.
  • Confirm if the estimate includes labor, materials, and equipment costs.
  • Ask for a contract in writing that includes the costs, timeline, and warranty information.

Reviews for Seattle foundation contractors

Recent success stories from people in the Seattle area.
Cate S.
Positive: Professionalism, Quality, Responsiveness, Value Built a great fence and she-shed too. Got to include lots of design elements and make it more like a studio than shed. Really great experience
Love Construction
Jonathan S.
John did an amazing job remodeling my kitchen, finished in time, full of kindness and respect to us. Highly recommended. Looking forward to hire him again
Lux Finishing LLC
Brian W.
I contacted homeguide for a quote for a 2nd driveway for my RV. Vilivuni with TT&T contacted me quickly and setup an appointment to check the project. I made an addition to my initial request and he was patient and gave me a good quote. He explained the process, step by step, and made arrangements to get started right a way. He showed up when he said and did great work. He was careful to work safely and consider my property while working. I would use TT&T for any other projects that come up.
TT&T Contractor
John M.
Our project is located out in Bothell. They came out in such short notice. They got the job done as expected. We appreciate working with us from day one. Now this project is completed we would like to recommend their services to anyone who's looking to get concrete driveway or concrete services and retaining walls they make the job look so easy. They also built the deck of our home. Great crew, respectful, friendly and very open minded.
J&M BUILDERS LLC
Edward W.
Job well done. Thank you
A Straight Line Painting & Construction
Joseph S.
Home star does an outstanding job on any property! Their team is professional, efficient, and provides excellent customer service from start to finish. Highly recommend them for any foundation repair needs.
HomeStar masonry and construction corp
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