Understanding your foundation’s behavior
Cracks, sloping floors, sticking doors — what’s actually happening?
Most homeowners who find a crack panic. Sometimes the panic is warranted. Often, it isn’t. Here’s how to tell the difference — and what the warning signs actually mean.
Free · About 90 minutes · No obligation
The honest first thing to say
It might just be cosmetic
Not every crack is a crisis. Homes settle slightly over time, and seasonal temperature and moisture changes cause minor movement in nearly every structure.
A hairline crack in drywall or a door that sticks in August isn’t automatically a structural problem. But some cracks are different. A foundation that is actively sinking, shifting, or heaving is a real problem that will cost more to fix the longer you wait. The goal of this page is to help you tell the difference — and to give you a clear next step when the signs are real.
The fastest, most accurate next step is always the same: a free evaluation. A trained specialist can tell you definitively whether what you’re seeing is structural or cosmetic in about 90 minutes.
Warning signs
Signs your foundation needs an evaluation
The warning signs of real foundation movement fall into two groups: what you see inside the house, and what you see outside. Noticing one? It links straight to the free evaluation.
Interior signs
Sticking doors & windows →
Seeing this? Book a free evaluation and get a straight answer.
InteriorDrywall/sheetrock cracks →
Seeing this? Book a free evaluation and get a straight answer.
InteriorSloping or sagging floors →
Seeing this? Book a free evaluation and get a straight answer.
InteriorCracks in floor or tile →
Seeing this? Book a free evaluation and get a straight answer.
InteriorWall pulling from ceiling →
Seeing this? Book a free evaluation and get a straight answer.
InteriorCracked, uneven garage floor →
Seeing this? Book a free evaluation and get a straight answer.
InteriorBowing basement walls →
Seeing this? Book a free evaluation and get a straight answer.
InteriorWater intrusion in basement →
Seeing this? Book a free evaluation and get a straight answer.
Exterior signs
Stair-step cracks in brick →
Seeing this? Book a free evaluation and get a straight answer.
ExteriorChimney pulling away / leaning →
Seeing this? Book a free evaluation and get a straight answer.
ExteriorGaps above windows & doors →
Seeing this? Book a free evaluation and get a straight answer.
ExteriorGaps around the garage door →
Seeing this? Book a free evaluation and get a straight answer.
ExteriorFascia board pulling away →
Seeing this? Book a free evaluation and get a straight answer.
ExteriorVisible foundation cracks →
Seeing this? Book a free evaluation and get a straight answer.
Why foundations fail
The 7 causes of foundation failure in the Pacific Northwest
Understanding why foundations fail helps you assess the risk in your specific home and soil type. In the PNW, these causes account for the vast majority of cases.
Poor drainage
The leading cause in the PNW — excess water erodes or consolidates soil and causes settlement.
Poor / expansive soil
Soils that expand and contract with moisture push and pull on the foundation.
Inferior ground preparation
Soft, low-density, or poorly compacted fill beneath a home is a top cause of failure.
Evaporation
Heat and dry wind shrink soil beneath the foundation.
Tree roots (transpiration)
Roots desiccate soil under the home, causing it to shrink.
Plumbing leaks
Hidden leaks saturate and wash out supporting soil.
Inferior construction
Insufficient steel and low-grade concrete allow slab movement.
Seismic risk
The Pacific Northwest seismic factor
Pacific Northwest homeowners face a foundation risk that most of the country doesn’t: active seismic zones. Homes on fill, soft soil, or river-valley deposits face the greatest risk — especially pre-1980s construction.
Ram Jack’s engineered helical pile systems were validated in UC San Diego shake-table + PEER liquefaction testing — real, citable engineering data, not marketing.
Next steps
You noticed something. Here’s what to do next.
It’s rarely an emergency
Most foundation symptoms are worth evaluating, but they’re rarely emergencies that require you to leave the house tonight.
Movement gets more expensive
Foundation movement that’s left unaddressed almost always gets worse and more expensive to fix. The difference between a 6-pile job and a 16-pile job is often just a few years of procrastination.
Only an evaluation can tell
A crack could be cosmetic or structural — the only way to know is a trained evaluation. Online photos and forum opinions are not substitutes for an on-site assessment.
That’s what the free evaluation is for
You’ve seen something, you’re not sure what it means, and you want an honest expert to tell you the truth. Free, about 90 minutes, no obligation.
Seen something? Let’s find out what it means.
A free foundation evaluation is the quickest path from worry to clarity. Our specialists have seen every variation of every symptom above — and they’ll tell you honestly what they find.
Free · About 90 minutes · No obligation