Top-rated foundation repair specialists.

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TRUSTED BY SULTAN, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon106
    Verified foundation repairs reviews

Find Foundation repair specialists in Sultan

Avatar for Groundworks

Groundworks

18931 59TH AVE NE
4.68(
25
)
Approved Pro

Groundworks

18931 59TH AVE NE
4.68(
25
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 local quotes requested

Since 1987, Groundworks has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North-West Washington. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or crawl space. GROUN**76305

"Current employee of the Arlington Location posted this on her social media account."

John S on September 2025

Since 1987, Groundworks has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North-West Washington. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or crawl space. GROUN**76305

"Current employee of the Arlington Location posted this on her social media account."

John S on September 2025


Avatar for Groundworks

Groundworks

18915 16th Ave S
4.44(
162
)
Approved Pro

Groundworks

18915 16th Ave S
4.44(
162
)
Approved Pro
Customers say: Super punctual
30 local quotes requested
28 years of experience

Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE! GROUN**76305

"Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean"

Charles W on May 2025

Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE! GROUN**76305

"Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean"

Charles W on May 2025


Avatar for Iron Earth Construction LLC

Iron Earth Construction LLC

115 West Hill Street
5.00(
3
)
Approved Pro

Iron Earth Construction LLC

115 West Hill Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
31 local quotes requested

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our

"Very accommodating and great service and product"

Sally K on September 2023

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our

"Very accommodating and great service and product"

Sally K on September 2023


BSC Construction

5.00(
8
)

BSC Construction

5.00(
8
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Welcome to BSC Construction, a home repair contractor. We specialize in handyman home repairs, excavation and drainage construction. Our services include: - Drainage construction - Retaining walls - Handyman services - Home repairs - Excavation and grading Contact us today!

"We have been so pleased with BSCs work! The attention to detail was high and they are super responsive when any issues arise. I would recommend them to anyone who wants the job done right and loves a stress free environment!"

Anne C on July 2024

Welcome to BSC Construction, a home repair contractor. We specialize in handyman home repairs, excavation and drainage construction. Our services include: - Drainage construction - Retaining walls - Handyman services - Home repairs - Excavation and grading Contact us today!

"We have been so pleased with BSCs work! The attention to detail was high and they are super responsive when any issues arise. I would recommend them to anyone who wants the job done right and loves a stress free environment!"

Anne C on July 2024



Avatar for Iconiq Construction

Iconiq Construction

1601 5th Ave
No reviews yet

Iconiq Construction

1601 5th Ave
No reviews yet
11 years of experience

We are family owned and operated, with over 25 years of experience in the remodeling industry. We specialize in kitchens, bathrooms, room addition, roofing, painting ,concrete, block walls, drywall, vinyl & hardwood floors, basement remodeling and much more! We also offer complete architectural services for the interior of your home. Whether you are remodeling or building from scratch, we can help. We provide our clients with a one on one experience starting from consultation all the way to final installation. We use only professional grade materials that hold up to everyday use and flex with your homes needs. We understand customer's needs and work according to the customers vision. Our team of professionals provides you with a great service, at an affordable price. It's your home, our job is to make it better!

We are family owned and operated, with over 25 years of experience in the remodeling industry. We specialize in kitchens, bathrooms, room addition, roofing, painting ,concrete, block walls, drywall, vinyl & hardwood floors, basement remodeling and much more! We also offer complete architectural services for the interior of your home. Whether you are remodeling or building from scratch, we can help. We provide our clients with a one on one experience starting from consultation all the way to final installation. We use only professional grade materials that hold up to everyday use and flex with your homes needs. We understand customer's needs and work according to the customers vision. Our team of professionals provides you with a great service, at an affordable price. It's your home, our job is to make it better!


Avatar for Seattle Foundation Repair

Seattle Foundation Repair

5608 17th Ave NW
3.00(
2
)

Seattle Foundation Repair

5608 17th Ave NW
3.00(
2
)

Each year sinking foundations, cracked and buckled walls, and cracked and uneven floors affect millions of families. Buildings situated on unstable soils will settle when the foundation is subjected to moisture or poor drainage. A shifting foundation could result in structural damage and potentially, a loss of your investment. Foundation problems should be addressed as soon as they are discovered before the damage is irreversible. If you notice any of these signs, call us at Seattle Foundation Repair to protect your property value and ensure the safety of your home.

"I contacted them for work and have regretted it ever since. They pull you around and act responsive until the rubber hits the road to take action, ghosting me ever since. They billed me 900 dollars for something they did not do. They promised to bury the concrete they dug up and broke their word. I texted the owner until he stopped responding. I emailed them until they stopped responding—terrible company to work with."

David C on December 2024

Each year sinking foundations, cracked and buckled walls, and cracked and uneven floors affect millions of families. Buildings situated on unstable soils will settle when the foundation is subjected to moisture or poor drainage. A shifting foundation could result in structural damage and potentially, a loss of your investment. Foundation problems should be addressed as soon as they are discovered before the damage is irreversible. If you notice any of these signs, call us at Seattle Foundation Repair to protect your property value and ensure the safety of your home.

"I contacted them for work and have regretted it ever since. They pull you around and act responsive until the rubber hits the road to take action, ghosting me ever since. They billed me 900 dollars for something they did not do. They promised to bury the concrete they dug up and broke their word. I texted the owner until he stopped responding. I emailed them until they stopped responding—terrible company to work with."

David C on December 2024


Sejant Foundation Restoration

17837 1st Ave S
No reviews yet

Sejant Foundation Restoration

17837 1st Ave S
No reviews yet

We provide foundation repair services for residential and commercial buildings which are experiencing shifting, cracking, or settling to insure they maintain their value. Unlike most companies, we don't have a patented system we must use. With us, each project is unique and we use the best solution. We have 10+ years experience in the foundation repair business, and are a locally owned company. This means this is our passion, not just a job.

We provide foundation repair services for residential and commercial buildings which are experiencing shifting, cracking, or settling to insure they maintain their value. Unlike most companies, we don't have a patented system we must use. With us, each project is unique and we use the best solution. We have 10+ years experience in the foundation repair business, and are a locally owned company. This means this is our passion, not just a job.


Avatar for Building Northwest

Building Northwest

2120 Bickford Ave
No reviews yet

Building Northwest

2120 Bickford Ave
No reviews yet
Free onsite estimate

Building Northwest LLC is a licensed, insured excavating and sand and gravel delivery company located in Snohomish County. We have been operating in the Pacific Northwest for the last 30 years. We are also licensed and insured to provide contractor services in Washington State. We specialize in custom home building, interior remodeling projects, exterior remodeling, excavations, sand and gravel hauling and transportation, foundation work, concrete driveways and sidewalks, framing, plumbing, electrical, HVAC, roofing, siding, landscaping, retaining walls, interior finish work, carpet install, vinyl install, tile installation, hardwood flooring, cabinet install, and all other types of work that are involved in the building process. Give us a call at 2069997780 to get a free estimate today.

Building Northwest LLC is a licensed, insured excavating and sand and gravel delivery company located in Snohomish County. We have been operating in the Pacific Northwest for the last 30 years. We are also licensed and insured to provide contractor services in Washington State. We specialize in custom home building, interior remodeling projects, exterior remodeling, excavations, sand and gravel hauling and transportation, foundation work, concrete driveways and sidewalks, framing, plumbing, electrical, HVAC, roofing, siding, landscaping, retaining walls, interior finish work, carpet install, vinyl install, tile installation, hardwood flooring, cabinet install, and all other types of work that are involved in the building process. Give us a call at 2069997780 to get a free estimate today.


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Foundation Repair questions, answered by experts

The best solution to fix a foundation crack in your basement floor depends on the underlying cause. If you just have hairline cracks from settlements that are no longer growing, the best option is to seal them with a crack sealant. If the cracks continue to grow, one edge rises above the other, or there are signs that water is getting in through the crack, a professional repair will be necessary. Depending on the root cause, your professional may employ foundation underpinning or some other type of stabilization, seal the cracks, or install a drainage system.

Yes, thicker concrete is less likely to crack. The thicker the concrete is, the less susceptible it is to extreme changes in weather conditions that often cause concrete to crack or chip. If you’re unable to install a thicker concrete driveway for any reason, you can also ask your professional to install more rebar or wire mesh to provide greater strength and better resilience to damage.

Concrete spalling can be fairly serious, especially if left untreated or in a public area. It can be a tripping hazard and, if not resolved, can lead to structural instability.

Foundation repairs cost about $5,000, on average. Typically, prices range from $2,200 to $7,800, depending on the type and extent of repairs needed. Cost factors include foundation type, home size, soil stability, accessibility, and the ultimate cause of the problem and what methods and materials are required to fix it.

A sinking foundation can be lifted, most often by installing piers to re-level and support the weight of the house. Depending on the cause and extent of the sinking, other methods to lift a foundation include underpinning and mudjacking. Consult a foundation repair pro to determine the best way to lift your sinking foundation. 

The Sultan, WA homeowners’ guide to foundation repairs

From average costs to expert advice, get all the answers you need to get your job done.