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11 Best Foundation Companies in Sammamish, WA

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Written By Bradford Cuthrell

Last Updated April 2024

Foundation repairs can require a lot of time and money. However, not fixing foundation problems could lead to significant and costly issues in the future. The higher than usual rainfall in Sammamish presents unique risks to your house's foundation. Water could leak through cracks or even seep into the concrete itself.

To help you find reliable foundation services, we researched the best, highly-trusted foundation repair companies near you. Continue reading to learn about our top picks for the best foundation repair companies in Sammamish, Washington.

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Top 11 Best Foundation Companies in Sammamish

Wet Basement Services

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7351 148th Ave NE, Redmond, WA 98052 (425) 877-0845 wetbasementservices.com

Free quotes

Transparent pricing

Good customer service

Helps educate customers

Services Offered

Mold remediation
Sealing
Masonry
Inspection
Sump pumps
Grading and leveling
Crawl space encapsulation
Waterproofing
Repair
Concrete
Retaining walls
French drains

Seattle Slab Jack

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12843 NE 14th Ct, Bellevue, WA 98005 (206) 460-7522 seattleslabjack.com

Helps educate customers

Free quotes

Good customer service

Transparent pricing

Services Offered

Sidewalks
Retaining walls
Inspection
Grading and leveling
Driveways
Repair
Concrete
Sealing

Seismic Northwest

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9817 SE Shoreland Dr, Bellevue, WA 98004 (206) 257-1133 seismicnorthwest.com

Helps educate customers

Transparent pricing

Free quotes

Services Offered

Grading and leveling
Concrete
Inspection
Retaining walls
Masonry
Repair

All Seasons Waterproofing and Drainage, Inc.

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8828 206th St SE, Snohomish, WA 98296 (425) 577-6293 allseasonswaterproofing.com

Good customer service

Helps educate customers

Transparent pricing

Free quotes

Services Offered

Driveways
Crawl space encapsulation
Waterproofing
Sealing
Repair
French drains
Retaining walls
Mold remediation
Sump pumps

Dochnahl Construction Inc

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16442 SE, 16442 Renton Issaquah Rd SE, Renton, WA 98059 (425) 255-7416 dochnahlconstruction.com

Transparent pricing

Helps educate customers

Free quotes

Good customer service

Services Offered

Repair

Perma Dry Waterproofing & Drainage

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608 SW 12th St, Renton, WA 98057 (425) 277-1990 permadrywaterproofing.com

Free quotes

Good customer service

Helps educate customers

Transparent pricing

Services Offered

Inspection
Grading and leveling
Mold remediation
Driveways
Crawl space encapsulation
Sump pumps
French drains
Repair
Waterproofing
Sealing
Retaining walls
Concrete

Seattle Foundation Repair

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1546 NW 56th St Unit 526, Seattle, WA 98107 (206) 889-6751 seattlefoundationrepairs.com

Helps educate customers

Good customer service

Transparent pricing

Free quotes

Services Offered

Inspection
Crawl space encapsulation
Concrete
Mold remediation
Retaining walls
Masonry
Waterproofing
Grading and leveling
Repair

Seattle Concrete Contractors

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929 N 145th St Unit 77736, Seattle, WA 98177 (206) 565-0867 seattleconcretecompany.com

Free quotes

Transparent pricing

Helps educate customers

Good customer service

Services Offered

Retaining walls
Driveways
Sidewalks
Sealing
Repair
Concrete
Masonry
Mold remediation
Inspection

Basement Expert Waterproofing of Seattle

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20722 12th Ave W, Lynnwood, WA 98036 (206) 388-7867 basement-expert.com

Punctual service

Free quotes

Helps educate customers

Transparent pricing

Good customer service

Services Offered

Crawl space encapsulation
Sump pumps
Waterproofing
Mold remediation
Repair
Grading and leveling
Inspection
French drains

Sound Seismic Earthquake Retrofitting

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7543 15th Ave NW, Seattle, WA 98117 (206) 352-5644 soundseismic.com

Free quotes

Transparent pricing

Helps educate customers

Services Offered

Retaining walls
Inspection
Driveways
Repair

AFFIX SEISMIC RETROFIT

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4040 34th Ave W, Seattle, WA 98199 (206) 284-6226 earthquakeprepared.com

Free quotes

Good customer service

Helps educate customers

Transparent pricing

Services Offered

Retaining walls
Repair
Inspection
Crawl space encapsulation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on foundation companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Foundation Repair Company

You need a good foundation repair contractor to properly assess issues and make appropriate repairs. Do thorough research and focus on these factors when selecting the right company.

Experience

Look for a well-established local provider with extensive experience successfully handling all types of foundation repairs. These companies have specialized expertise using the latest methods and materials. Ask how long a company has been serving your area.

Reputation

Researching online reviews, checking the Better Business Bureau, and requesting local references helps you verify that the company consistently delivers good workmanship and a positive customer service experience. Pay attention if you see multiple complaints about shoddy repairs or poor service.

Licensing and Insurance

Make sure any company you hire has the right licenses, bonds, and insurance for liability and workers' compensation. Washington does not have state-level licensing requirements for contractors, but they must register with the Washington State Department of Labor & Industries. Contractors must be bonded and insured in order to register. Make sure to check with your city or county government to find out if there are any additional local requirements. Contractors may have to meet additional requirements to do certain work with concrete.

Warranties

Opt for a provider offering long transferable warranties of at least 10 years, ideally lifetime guarantees, to completely back its foundation repair work. This exhibits belief in the quality and durability of the repairs and offers protection should problems develop later.

Questions To Ask Foundation Repair Companies

To compare foundation repair companies, you should ask specific questions such as:

  • Can you provide a cost estimate and project scope in writing? Be sure to get quotes in writing to protect yourself from unexpected expenses.
  • Realistically, how long will repairs take? Look for providers that provide reasonable estimates.
  • What do you see as the likely cause of my issues based on your inspection? Look for clear explanations and solutions in the answer. Companies that provide unclear answers may be attempting to bill you for unneeded work.
  • What type of warranties are provided? Reputable companies often offer warranties of minimum 10 years on materials and labor.
  • What financing options do you have? Providers often offer payment plans for larger foundation repairs.
  • What repair method would you recommend for my specific situation and why? Your provider may consider options such as steel piers, carbon fiber, and wall anchors. By asking, you can get an idea of what solutions a company offers and compare between providers.

Carefully assessing foundation repair companies helps homeowners locate the best fit for their needs. A company that can answer the above questions likely completes durable, high-quality repairs. Repairing foundation problems right away reduces the risk of future structural damage.

Frequently Asked Questions About Foundation Repair in Sammamish, WA

There are certain signs that your foundation needs repairs. These might include:

  • Visible crumbling or cracking of your foundation
  • Uneven basement or ground-level floors
  • Buckling, bowing, or cracked walls
  • Door or window frames that are skewed or tight
  • Cracks in your basement floor
  • Cracks in your driveway

On average, Sammamish homeowners spend about $3,041 on foundation repair. The cost of foundation repair depends on several factors. Things like the extent of the damage, the type of repair needed, and the size of your home will all help determine the cost. The easiest way to find out how much a job might cost is to talk to a local foundation repair company and schedule a free inspection and estimate.

Types of foundation repair include leak repair, crack repair, stabilization, underpinning, and waterproofing.

For both leak repair and crack repair, a technician will come to your home, complete an inspection, and use various measures to fix leaks or cracks. The amount you spend can vary greatly depending on the size and root cause of the issue.

Stabilization helps to fix bowing walls by inserting steel or carbon fiber strips. The amount you spend will depend on the material chosen and how many strips are required. The cost of underpinning also varies. This process, sometimes referred to as piering or leveling, involves leveling your foundation by underpinning it with concrete piers; the cost will be based on how many piers are needed.

If you're interested in waterproofing your foundation or basement, we suggest talking to a waterproofing specialist. This process might include outdoor waterproofing, indoor waterproofing, or both.

If you're constructing a new house, make sure that a soil report is completed. This report contains information about how well the soil on a given piece of land can support a foundation, and can offer you a heads-up about any potential future issues. If your concerns are about an existing house, a few hundred dollars will cover an inspection and report by a structural engineer. They can alert you to any things that need attention, and advise you on avoiding future problems.

Also ensure that the moisture around your foundation is appropriate. As Sammamish sees more rain than many other places, keep an eye on your gutters and landscaping to make sure too much water isn't getting into your soil or foundation. You should also stay vigilant for leaky gutters or pipes, so you can get them repaired quickly.

Your foundation repair professional should acquire the needed permits. You can ask the company to provide a detailed explanation of its process and to see the permits and paperwork it has assembled to confirm everything is properly authorized per Sammamish regulations.

Signs that you need foundation waterproofing include discoloration or odors, white powder or spots on your walls, hairline cracks, basement flooding, uneven floors, or signs of mold, mildew, or fungus. Your contractor can inform you whether you need interior or exterior waterproofing.

Interior waterproofing can involve the installation of sump pumps and drains or the use of sealants and generally is less expensive than exterior waterproofing. Exterior waterproofing can involve applying physical barriers to basements and crawl spaces, changing your landscaping, or installing exterior drains.

You should talk to your foundation repair professional about this issue before starting any project. In most cases, yes, you should be able to remain in your home while foundation work is being done.

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