Your local Puget Sound foundation team · Office in SeaTac
Foundation repair in Seattle, WA
Cracks creeping up your walls? Floors that slope toward the Sound? Our Seattle specialists will tell you the truth about your home — free, on-site, no pressure.
Free · About 90 minutes · No obligation
The Seattle / Puget Sound team
Local context
Why Seattle-area foundations move
Seattle isn't generic ground. Our homes sit on a complicated mix the rest of the country never deals with — and it's exactly why local experience matters.
Glacial soils, unevenly
Puget Sound sits on glacially-deposited soils — dense glacial till in places, but also soft lake and estuarine deposits, fill, and liquefiable sands near the waterfront and river valleys (Duwamish, Green, Puyallup).
Earthquake country
The Seattle Fault, the Cascadia Subduction Zone, and deep Benioff-zone quakes (e.g. 2001 Nisqually M6.8) make seismic-resilient foundations a regional necessity, not a luxury.
Wet winters, steep lots
Heavy winter rainfall + steep hillsides + high water tables drive drainage-related settlement, bowing basement walls, and seawall/bulkhead loading on Sound and lake frontage.
Older housing stock
A large share of Seattle-area homes predate modern foundation seismic standards, and hillside lots create slope and retaining-wall demand.
Services
What we do across Puget Sound
Foundation Repair →
Stop settlement and lift your home back to level with patented steel pile systems.
Residential Structural RepairBasement & Wall Repair →
Straighten and reinforce bowing, cracking, or leaning basement and retaining walls.
Concrete & Carbon Fiber ReinforcementConcrete Reinforcement →
Carbon fiber reinforcement for walls, columns, beams, and structural concrete.
Concrete & Carbon Fiber ReinforcementConcrete Lifting & Repair →
Lift and level sunken concrete with polyurethane foam — quick, clean, affordable.
Waterfront / SeawallSeawall & Bulkhead Repair →
Restore failing seawalls and bulkheads for ~80% less than full replacement.
Residential Structural RepairSeismic Retrofitting →
Engineer your home to survive Cascadia — proven on shake-table and liquefaction tests.
Concrete & Carbon Fiber ReinforcementCarbon Fiber Solutions →
High-strength, low-profile carbon fiber reinforcement that installs in hours.
Commercial & CivilCommercial / Civil Solutions →
Engineered deep-foundation and structural solutions for commercial & civil projects.
Local proof
Real Seattle-area projects, real numbers
Every project below is a published Ram Jack West case study from the Puget Sound market — pile counts, depths, and lifts included.
62-Year-Old Seattle Home Recovery
A 1959 Seattle home revealed ~2.5" of settlement at purchase. 24 piles at 12–17 ft permanently supported it and passed Seattle's load testing.
Driven Piles Remedy Foundation Failure
A Seattle home had settled 2¾" where it met the front porch. 7 driven piles plus steel support lifted it and passed independent load testing by Redmond Geotechnical.
Seattle Seawall & Bulkhead Repair
A 30-year-old Seattle bulkhead bowed at mid-span from soil loss. Helical tiebacks, SW-RP1 injection, and carbon fiber restored it for ~80% less than replacement.
Washington Park Arboretum Loop Trail
24 helical piles supported two bridges on Seattle's environmentally sensitive Arboretum loop trail.
Durable Solution for Sloping Floors
A 91-year-old Renton home sat 4¼" low front-to-back. 17 helical piles + foam recovered ~3" in 6 days.
Lakefront Settlement, Bellevue
A Lake Sammamish home settled up to 5" from high water tables. 74 piles to 34 ft lifted it 4".
Innisglen Condominiums, Bellevue
Two HOA condo units settled 3.5". 42 helical piles recovered 2.75" and re-leveled doors, floors, and a pulling fireplace in 6 days.
40 Helical Piles, Tacoma Residence
Puyallup Tribal Housing: 40 helical piles + foam lifted a settling Tacoma home 3.5" ahead of a full remodel.
Support of Tacoma Home
A 1979 Tacoma home on a sloped lot settled 1.5". 4 helical + 3 driven piles plus carbon fiber straps stabilized the cracked stem wall.
Settled Residence, Cashmere
A Cashmere home dropped 2.5" near a creek. 4 helical piers re-leveled it in under 48 hours.
Gig Harbor Waterfront Seawall
A 115-ft Puget Sound seawall failing from soil loss: 11 helical tiebacks, 195 gal foam, drains, and 6 carbon fiber straps restored it.
Tacoma City Hall Seismic Upgrade
When helical piles couldn't reach torque in stiff soil, Ram Jack value-engineered a micropile solution with the geotechnical engineer for this civic seismic upgrade.
Reviews
What Seattle homeowners say
“They were very professional and provided the most thorough bid out of the 4 foundation companies we spoke to. Would recommend!”
Local people, local office
The SeaTac office
Your evaluation, your crew, and your warranty service all come from our SeaTac office — not a national call center.
FAQ
Seattle foundation repair questions, answered
Do I need a seismic retrofit for my Seattle-area home?
If your home predates modern seismic codes or sits on fill or soft soil near the water or a river valley, a retrofit meaningfully improves how it performs in a Cascadia or Seattle Fault earthquake. Our engineered helical-pile systems were validated on UC San Diego shake-table and PEER liquefaction tests (0.5" settlement vs 11" unsupported). A free evaluation tells you where your home stands.
My home is on a Puget Sound or lakefront lot — can you help with my seawall or bulkhead?
Yes. As a Seawall Repair Network® member we restore failing seawalls and bulkheads with helical tiebacks and SW-RP1 injection — typically for about 80% less than full replacement, and most repairs are completed without tearing out your shoreline.
Is the free foundation evaluation really free?
Yes — 100% free, no obligation, no pressure. Schedule online and a trained foundation specialist will come to your home, assess the structure, and tell you honestly whether you have a real foundation issue or just minor cosmetic settling.
What is the Ram Jack National Limited Warranty Trust?
We back every qualifying installation with a Transferable Lifetime Warranty. The National Limited Warranty Trust is a separate, funded trust that guarantees your warranty coverage even in the unlikely event we're not available to service it. Money is set aside exclusively for warranty repair and service.
Financing via GreenSky · No Interest if paid in full in 12 months on qualifying plans
Get the truth about your Seattle home's foundation.
Free, honest, no obligation. If it's just cosmetic settling, we'll tell you that too.
Free · About 90 minutes · No obligation