Gaps Between Walls and Ceilings — Foundation Problems in Montgomery

A gap between your wall and ceiling is an unsettling sight. In Montgomery, Alabama homes,

this gap often indicates foundation settlement, but not always. Understanding wall ceiling gap

foundation issues helps you diagnose the cause and find the right repair.

What the Gap Means

A gap between the top of an interior wall and the ceiling occurs when the wall has dropped or

the ceiling has lifted. In most cases, the foundation has settled unevenly, causing the wall to

sink while the ceiling (attached to the roof structure) stays in place. The gap is often wider on

one side of the room, indicating differential settlement. You may also see cracks in the corner

where the wall meets the ceiling. Montgomery Foundation Repair Co uses the location and

width of gaps to help pinpoint which part of the foundation has moved.

Other Possible Causes

Not every wall‑ceiling gap is from foundation settlement. Seasonal humidity changes can cause

wood framing to expand and contract, creating small gaps that close when humidity returns.

Poor initial construction (drywall that was not tight to the ceiling) can also cause gaps. And

truss uplift—a phenomenon where roof trusses bow upward in cold weather—can lift the

ceiling, creating a gap at interior walls. Truss uplift is common in modern homes with attic

insulation. Montgomery Foundation Repair Co can distinguish between settlement and truss

uplift by measuring floor levels.

Diagnosing the Cause

To determine if foundation settlement is the cause, we check for other symptoms. Are there

cracks in other walls? Are floors sloping? Do doors stick? If you have multiple symptoms,

settlement is likely. We also measure floor elevations with a laser level. If the floor under the

wall is lower than elsewhere, the gap is from settlement. If the floor is level but the ceiling is

higher, truss uplift may be the culprit. Montgomery Foundation Repair Co provides a free

inspection to give you a definitive answer.

Repairing Settlement‑Caused Gaps

If the gap is from foundation settlement, the solution is to level the foundation with steel piers.

As we lift the settled area, the wall will rise back toward the ceiling, closing the gap. In some

cases, the drywall may have permanently deformed; after leveling, you may need to patch or

replace the affected section. Do not simply fill the gap with caulk before leveling the foundation

—the caulk will split when the foundation is lifted. Montgomery Foundation Repair Co can

recommend a drywall contractor if needed.

Frequently Asked Questions