5 Best Foundation Repair Companies in Seattle (2022)

A person repairs the foundation of a home using plaster.
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Though Seattle features many scenic vistas, its wet weather patterns and deep, poorly drained organic soils can spell structural issues. These foundation issues can range from mold in your basement to foundation settlement. If your Seattle home has slab cracks, uneven flooring or cracks in its brickwork or concrete, you may be in need of foundation repair. 

Foundation repair is a complicated and costly process, but there are plenty of companies in the Seattle area that can help. We created this detailed guide for foundation repair in Seattle to help you obtain a more clear understanding of what goes into the foundation repair process. This guide will help you in your research for the best foundation repair companies in Seattle as we compare each company’s services, financing options and average pricing.

Today’s Homeowner works with an independent reviews team to create evidence-based research that helps our readers make informed decisions. The reviews are always independent. For transparency, we may be compensated if you purchase through a link.


Top Foundation Repair Companies in Seattle

  1. TerraFirma Foundation Systems: Best Overall in Seattle
  2. Ram Jack: Best for Piles Services in Seattle
  3. Seattle Foundation Repair: Best for Waterproofing in Seattle 
  4. R&R Foundation Specialist, LLC: Best for Commercial Services
  5. Matvey Foundation Repair: Best for Real Estate Evaluations in Seattle

1. TerraFirma Foundation Systems

TerraFirma Foundation Systems is our top pick for foundation repair services in the Seattle area. Founded in 2005 by sixth-generation Oregonian Ryan Beckly, TerraFirma understands the problems with foundations in the Pacific Northwest region. The company offers one of the most comprehensive selections of foundation repair and basement waterproofing services in Seattle. It also features a unique and useful online portal for customers to make payments through. 

Cost and Financing Options 

TerraFirma does not provide online sample pricing. You can most likely expect the company’s services to cost around $3,307–$5,646, the average price of foundation repair in Seattle. 

TerraFirma does provide financing options through both EnerBankUSA and MoreHouse Finance. Learn about possible financing options below: 

  • Same-As-Cash Option: This option has no interest and no payments for the first 12 months. The repayment window ranges from 24 to 132 months. If paid within a year, interest can be waived.* 
  • Reduced Interest Loan Option: This is a five-year reduced-interest loan. This loan has 6.99% APR, and its repayment window ranges from 60 to 120 months. Payment begins 30 days after the loan closes.* 

Customer Reviews

I had two estimates. TerraFirma was much cheaper but more than that they moved fast, were clean, professional. The inspector gave them high marks and I have a house that is earthquake secure to magnitude 8 give or take.

– Carmen G. on Google Reviews

2. Ram Jack

Ram Jack has offered foundation repair solutions to residential and commercial customers since 1975 across the entire United States. The company’s branch in SeaTac, Washington, serves clients in Seattle. Ram Jack is an excellent option if you are in need of piling services. The company boasts a wide variety of piling options including eco-friendly driven piles. 

Cost and Financing Options

Ram Jack states on its website that its average cost for pier-and-beam repairs runs from $1,000 to $3,000 for piers that are six-to-eight feet apart. Piers that focus on a single corner or closer together can cost between $3,500 and $5,000. Your price can vary greatly depending on the extent of foundation damage and the services you opt for. 

Similar to TerraFirma, Ram Jack offers financing options through EnerBank USA. Read over the company’s financing options below: 

  • Same-As-Cash Option: Ram Jack provides loans with a repayment window ranging from 24 to 132 months. Interest can be waived if the loan is paid off in a year. This option has no interest and no payments for the first 12 months.*
  • Reduced-Interest Loan Option: Ram Jack also offers a five-year reduced interest loan. This loan has 6.99% APR, and its repayment window ranges from 60 to 120 months. Repayment begins 30 days after the loan closes. *

Customer Reviews

I recently had the outer wall of my foundation lifted and the floor leveled throughout my house. … [The Ram Jack technicians] were all very professional and did not leave until I was 100% happy with the job. They were on time every day and very respectful of my dogs, children, home and time. Personally I was very anxious for weeks beforehand, but once I met the crew I was put at ease.

– Grace R. on Google Reviews

3. Seattle Foundation Repair

Seattle Foundation Repair is a local company with more than 50 years in the construction industry. It focuses on bringing the latest technology available to help with steel push piers and helical piers, waterproofing and concrete lifting and leveling. We find the company’s waterproofing offerings— services like epoxy and urethane injection and targeted drain tile installation—particularly impressive. 

Cost and Financing Options 

You should expect service with Seattle Foundation Repair ro run around $3,307–$5,646. The company partners with Enhancify to offer comprehensive financing solutions.

some options you can receive with approved credit through Seattle Foundation Repair include 0% and 5.99% APR, one- to seven-year terms, funding available within one business day and loans as high as $100,000. 

Customer Reviews

Most impressive to me was the fact that [the Seattle Foundation Repair crew] came when they said they would, worked hard, did an excellent job, kept me informed, and cleaned up the area each day after work was completed. Also, they took pictures to show me the areas under the house that they had repaired, and carefully answered any questions I had.

– Pam J. on Google Reviews

4. R&R Foundation Specialist, LLC

Based out of Everett, Washington, R&R Foundation Specialist provides industry-standard foundation repair services. The company has working relationships with local structural engineers to provide accurate, detailed and free foundation elevations. R&R Foundation Specialist also has more comprehensive commercial solutions than other companies on this list. 

Cost and Financing Options 

The overall cost of R&R Foundation Specialist will most likely range between $3,307–$5,646 for residential services. Commercial service may be more costly depending on the size of the property. R&R Foundation Specialist partners with 1st Security Bank to provide financing options.

Through 1st Security Bank, the company will help create a construction loan with you. Based on your approved credit, you will receive a payment plan that takes into consideration your specific financial needs.

Customer Reviews

When we noticed a crack running across our garage ceiling and down our chimney, we scheduled a time with R&R to come check it out and see if we had a foundation problem. [The inspector] was right on time, thorough in his inspection, and completely professional.

– Sam R. on Google Reviews

5. Matvey Foundation Repair

Founded in 1997, Matvey Foundation Repair is an excellent option for a foundation repair company that helps with real estate evaluations and repairs. The company recognizes the value in saving old foundations and the structural elements of buildings. Matvey provides a user-friendly experience online through its personal blog and videos, and the company is used to walking customers through the real estate process when it comes to structural foundation evaluations. 

Cost and Financing Options 

Though the company does not feature sample pricing online, Matvey Foundation Reapir’s service will most likely range between $3,307–$5,646. The company does feature a partnership with Hearth to provide financing options.

To receive financing with Matvey Foundation Repair, you enter some brief information on Hearth’s website to generate a tailored loan and payment plan. Based on your approved credit, you can receive loan amounts up to $100,000, funding within three days, no prepayment penalties and no home equity requirement.

Customer Reviews

Very responsive and professional. I had to have extra supports installed under my porch and a new drainage system for rainwater. Both completed within the time frame we had discussed and the price range we had budgeted for.

– Angelo V. on Google Reviews

* All loans and financing subject to credit approval


Final Thoughts

There are many foundation repair companies throughout the Seattle area, and we recommend you get quote information from multiple providers before deciding which one is right for your specific needs. 

If you want the most comprehensive and all-inclusive foundation repair experience, we recommend you look into TerraFirma Foundation Systems as we named it Best Overall in Seattle. Ram Jack comes in at a close second, as it provides some of the best piles services in the region.


Compare Top Foundation Repair Companies in Seattle

CompanyTerraFirmaRam JackSeattle Foundation RepairR&R Foundation Specialist, LLCMatvey Foundation Repair
Best forOverallPile SystemsWaterproofingCommercial ServicesReal Estate Evaluations
BBB RatingA+A+A+A+A+
Average Cost$3,307–$5,646 (Seattle Average)$1,000–$5,000$3,307–$5,646 (Seattle Average) $3,307–$5,646 (Seattle Average)$3,307–$5,646 (Seattle Average)
Lifetime Warranty?NoYesNoNoNo

Average Cost of Foundation Repair in Seattle 

Many different factors have an impact on the overall cost of a foundation repair project in Seattle. The average overall cost for foundation repair in Seattle ranges from $3,307 to $5,646. 

The overall severity of the damage, the need for slabjacking, the need for additional materials or services and the total resale value impact your overall cost for foundation repair. Check out some of the average costs of popular foundation repair services in Seattle here: 

  • Pier-and-Beam Services: $4,000–$6,500
  • Basement Waterproofing: $2,500–$7,000
  • Concrete Crack Filling: $220–$700
  • Slope/Concrete Stabilization: $3,500–$11,500

Signs of Foundation Problems 

There are common, noticable signs of foundation issues across all types of homes. Here are some of the most common indicators: 

  • Exterior Cracks: These cracks are usually large and have a zigzag pattern. Sometimes they are called “staircase cracks” as they resemble the outline of a staircase. This is especially common on brick-and-mortar exteriors. 
  • Interior Sheetrock Cracks: If you notice large cracks on your drywall that line almost the entire wall, zigzag or cause wallpaper to fall off, then you are most likely having an issue with the foundation below. 
  • Sloping Floors: Uneven floors that slope to one side are another sign of major foundation settlement. Pay attention if the gradient of your floor is more than one or two inches every 15 feet.
  • Bouncing Floors: If you notice that your floors are bouncy, then it is a sign that you might have rotten wood in your home’s foundation. This is common with crawl space foundations. 
  • Door Frame/Window Frame Separation From Brick: This is a severe sign that you are experiencing foundation issues. If you notice a door frame or window frame being separated from brick, seek immediate help. Doors that are out of square are another sign. 

Foundation Services You May Need in Seattle 

Most homes in the Seattle area have crawl space or basement foundations. Though these foundations can provide certain benefits, such as conversion to additional livable spaces, they are susceptible to issues posed by Seattle’s wet climate and poorly back-filled soil. Learn about some of the most common causes of foundation problems in Seattle here: 

  • Wet Weather Patterns: Seattle is known for its rainy climate. This causes soil to become soft and expand. When soil moves like this, it may cause foundation shifting and leaks in your basement. When water gets into your basement or crawl space, waterproofing services may be required due to mold and mildew growth. 
  • Soil: Seattle features deep, yet poorly drained organic soils. This is due to herbaceous and woody deposits in depressions in river valleys and glacial till plains near the Emerald City. This soil puts a lot of pressure on basement walls and often causes them to bow. 
  • Plants and Other Vegetation: Trees, bushes and other plants expand their roots in search of water. Trees can push roots against and through your foundation, and other plants will suck moisture away from the soil near the foundation, leaving it sitting in an over-dry zone. These either cause foundation settlement or possible cracking. 

Foundation Repair Terminology

Foundation repair is a complicated field that features many different terms and ideas you may not be familiar with from day-to-day home maintenance. Below are some major terms you will come across as you research foundation repair companies that you need to know. 

  • Carbon Fiber Wall Reinforcement: This high-tech woven material is added to your bowing walls. The material becomes incredibly strong and rigid once infused with an epoxy resin.
  • Downspout Extensions: These are extensions installed on your gutters. They allow rainwater to be moved further away from your home’s foundation.
  • Epoxy And Urethane Injection: This service has a company use polyurethane in an injection process. This fills the voids underneath in an eco-friendly manner and lifts the settling foundation.
  • Mudjacking: This refers to when concrete is raised by pumping mud or other material under it through drilled holes. It is often also called slabjacking
  • Piers: Piers are large beams that are installed vertically beneath a home’s foundation. They are typically used when settlement occurs. They are raised by using a hydraulic machine, and they position the foundation at its proper level.
  • Pilings: These are heavy stakes or posts installed to support the foundations of a superstructure. Piers are a type of piling. 
  • Slab Foundation: This is a type of foundation that consists of 4”–6″ thick concrete that the home rests on. This concrete slab is often placed on a layer of sand for drainage and to act as a cushion. A home built on a slab foundation does not feature a crawl space.
  • Soil Nails: These products help treat unstable natural soil slopes. Think of them as similar to piers but they are installed horizontally instead of vertically. They are often used to help create retaining walls.
  • Surface Drain Installation: This service has a foundation repair company install a drain in your crawl space or basement that funnels any leaks into an exterior drainage system.
  • Underpinning: This term refers to when a solid foundation is laid to support or strengthen a home’s foundation. Piers are typically used during underpinning.

Foundation Repair in Seattle FAQ 

What happens if you don’t fix foundation problems?

There can be many negative outcomes to not fixing foundation problems. Major ones include the development of mold and mildew, as well as complete foundation failure and walls collapsing. 

Do most older homes have foundation problems?

This depends on if the owner took proper care of the home’s foundation. Most older homes have undergone some kind of foundation problem at some point, though.

Will homeowners insurance cover foundation problems?

Foundation repairs are possibly covered through homeowners insurance if it is covered in your policy.


How We Chose the Top Foundation Repair Companies

Today’s Homeowner works to provide our readers with well-researched, unbiased reviews. We have created a detailed research process that uses a weighted scoring system to objectively rate each company we review. We also believe in being transparent about our process and scoring in order to back-up our conclusions. Our rating system for foundation repair is based on a 100-point scale based on the following factors: 

  • Service Options (48): Does the company offer a comprehensive selection of foundation solutions, including waterproofing, concrete lifting, slope stabilization, leaning chimney repairs and more? 
  • Payment Options (10): What financing options does the company provide for its customers? Can customers receive financing options such as same-as-cash and a reduced-interest rate? 
  • Trustworthiness (10): Has the company garnered a solid reputation for its services? What rating does the company have on the Better Business Bureau? Does it feature accreditation from the Better Business Bureau? 
  • Warranty Options (20): Does the company provide a substantial warranty on its services? Does it offer a lifetime warranty or only exterior and interior underpin warranties? 
  • Additional benefits (12): What additional benefits can customers receive from the company, including commercial services, online blogs, online videos, an online booking process and eco-friendly options?

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