A door that starts sticking and doesn't stop is telling you something moved structurally. A forensic inspection finds what shifted, why, and what it costs to fix it permanently.
We trace the sticking door back to its structural root cause — floor deflection, mudsill failure, post rot, or foundation movement — and deliver a written fixed-price repair scope.
No hourly billing. No vague estimates.
$350 credited 100% toward your repair if you proceed.
Door frames don't move on their own. They move because the wall framing holding them shifted — and wall framing shifts because the floor system below it moved. The chain runs downward: door sticks → wall frame racked → floor deflected → structural framing failed.
When floor joists lose section capacity — through rot, notching, or overspan — they deflect under load. The floor drops slightly in the affected bay. The wall above follows, racking door and window frames out of plumb. Interior doors in that zone begin binding at the top corner opposite the deflection.
The mudsill is the lowest structural member — the wood plate connecting the floor system to the foundation. When it rots, the rim joist and floor above lose lateral support at the perimeter. The floor drops at the building edge, causing wall frames near exterior windows and doors to rack visibly.
Interior crawl space posts support the main beam. When a post settles, deteriorates, or was inadequately shimmed, the beam it carries drops. Floor bays on both sides of that beam deflect. Multiple doors in the center zone of the house may begin sticking simultaneously.
One zone of the foundation settling faster than adjacent zones creates differential movement in the floor system. The floor tilts slightly toward the settled zone. Wall framing above that zone racks. Doors in the affected area bind consistently on the same corner or side of the frame.
Humidity swings cause wood to expand and contract seasonally. Structural movement is one-directional and progressive. Distinguishing the two determines whether a cosmetic adjustment is appropriate or a structural repair is required.
Planing a door that sticks due to structural movement is cosmetic masking of a worsening condition. The frame will continue to rack as the underlying cause progresses. The door will need adjustment again in 6–12 months, and the structural damage will be more extensive. A forensic inspection before any adjustment determines whether you're dealing with wood movement or structural failure.
Crawl space entry, framing inspection, level and plumb measurements. Root cause of door binding identified. Structural failure points documented.
Fixed-price lump-sum contract. Every structural component addressed. No hourly billing, no change order exposure.
Failed framing replaced or sistered. Beam, post, or mudsill corrected. Floor system restored to level and plumb. Door and window frames follow.
All structural work carries a 5-year written guarantee. Documentation provided for inspection reports, lender files, or disclosure records.
The answer is either cosmetic or structural. A $350 diagnostic tells you which — and if it's structural, delivers a fixed-price scope to correct it permanently.