Groundworks proudly serves SeaTac, WA and King County with expert foundation repair, basement waterproofing, and crawl space repair services, helping homeowners across the greater Seattle area protect their homes. We fix cracked foundations, settling homes, wet basements, and crawl space moisture issues with proven, long-lasting solutions. Our team specializes in foundation stabilization, basement waterproofing systems, and crawl space encapsulation designed for Western Washington’s wet climate. Serving SeaTac, Seattle, and Tacoma, Groundworks is the trusted local choice for keeping your home safe, dry, and structurally sound.
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Certified by Groundworks Foundation Repair Seattle • Jun 21, 2026
No matter how small it might be, even a little damage to your foundation will reduce your property value, and it can lead to dangerous structural issues. If you notice wall cracks in your home, they may indicate an underlying foundation problem. Together with drywall nail pops, uneven floors, and sticking windows, signs of potential foundation failure might be all over your home. If you think that your house is in trouble, call the experts at [brand] for a comprehensive inspection of your home. We have proven solutions to restore your foundation, and we have the warranties to back them up. For more information or a free estimate, visit our website today!
Problems like mold, mildew, high humidity, and standing pools of water are all signs that your home’s crawl space is in need of repair or crawl space encapsulation. Our crawl space repair solutions can keep your crawl space free of pests, mold, and mildew, and can help regulate temperature and moisture levels in your home. For more information or a free estimate, visit our website today!
Exterior sunken concrete patios, driveways, and sidewalks are frustrating for homeowners across the country. PolyRenewal™ is the perfect concrete leveling solition. It's a lightweight, high-density polyurethane foam that goes beneath concrete slabs. It quickly expands and hardens, lifting cracked concrete slabs back into place. If you’re concerned about sinking concrete, call today or visit online to schedule a free home inspection.
While it is common for most basements to have moisture issues, they shouldn't be ignored. Basement water and moisture management problems negatively affect your home’s health and structural integrity. Call or visit us online today to schedule a free inspection and find out more about our basement waterproofing solutions.
Crawl space encapsulation creates a dry, hygienic, and safe interior space beneath your home that repels moisture and allergens. This can be achieved in many ways, but the main key component is a thick, durable vapor barrier to seal out the moisture from getting in. Encapsulation protects your property and creates a healthier interior climate for your entire home.
Frequently Asked Questions About Groundworks Foundation Repair Seattle
What services does Groundworks specialize in?
Groundworks specializes in foundation repair, foundation inspection, concrete lifting and repair, basement waterproofing, crawl space repair, and crawl space encapsulation for both residential and commercial properties.
Where is Groundworks located?
Groundworks is located at 18915 16th Avenue S, SeaTac, WA 98188, United States.
What are the operating hours of Groundworks?
Groundworks operates Monday to Friday from 4:00 AM to 8:00 PM, Saturday from 5:00 AM to 8:00 PM, and Sunday from 7:00 AM to 8:00 PM. They are closed on December 25 and January 1.
Does Groundworks require appointments for services?
Yes, Groundworks requires appointments for their services.
What payment options does Groundworks accept?
Groundworks accepts American Express, Cash, Check, Discover, Financing, Mastercard, and Visa as payment options.
How can I schedule a free inspection or book a service with Groundworks?
You can call Groundworks at +1 253-553-3529 or book online through their website's contact page to schedule a free inspection or service.
What language services are offered at Groundworks?
Groundworks offers services in English.
Are there any nearby trucking and freight services close to Groundworks?
Yes, nearby trucking and freight services include Graham Trucking, Commodity Forwarders Inc, and Expeditors, which may be helpful for commercial clients needing transportation or freight logistics.
Are there any home improvement or contractor businesses near Groundworks?
Yes, nearby contractor and home improvement businesses include Pebble Tile Mosaics, Cascade Stoneworks, Coverall Stone, and Mono Rooftop Solutions, which customers might visit for complementary home repair or renovation needs.
What nearby amenities can customers visit before or after their appointment at Groundworks?
Customers can visit nearby places like Aunt Becky's Deli for sandwiches, Fascinations Toys & Gifts for hobbies, or Velo Transit for bike rentals and sporting goods.
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