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Steel City Foundation WorksPittsburgh · Allegheny County
Pittsburgh and the Allegheny County towns (412) 643-4360Every call taken 24/7, three rivers high or low
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Settling and sinking foundations

When part of the house drops, the fix goes under it

A corner that settles pulls the rest of the house with it: cracked brick over the windows, a floor you can feel slope, a door that no longer latches. We measure how far it has gone and whether it is still going.

Brick row house on a sloping Pittsburgh street with a diagonal crack above a window and a porch slab dropped away from the house

Every house settles a little after it is built. What we are called about is uneven settling, where one part of the foundation sinks more than the rest. In Pittsburgh the usual causes are close to home: clay that shrinks in a dry August and swells again in a wet spring, fill soil on a hillside lot that was never compacted, a downspout that has been soaking one corner for twenty years, or an old sewer or water line leaking under the footing.

The house shows it before the foundation does. You will notice diagonal cracks running up from the corners of windows and doors, in plaster inside or in the brick outside. Interior doors that swing open on their own or will not latch. Gaps between the baseboard and the floor, or between the chimney and the wall. Floors that slope enough that a marble rolls away. On a hillside house, the downhill side is where we look first.

Our inspection uses a floor elevation survey: readings across every room, so we can see the shape of the settling instead of guessing from one crack. We also look at what changed: new gutters, a removed tree, a patio that now sheds water toward the house. Then you get one of three answers. Some settling is old and stable, and the house needs only cosmetic repairs and better drainage. Some is ongoing but mild, and fixing the water around that corner is enough. And some needs the footing carried down to firm ground with piers, which can also bring the corner back up part or most of the way.

What the job includes

Elevation survey

Readings across every floor so the pattern of settling is on paper, not guessed.

Cause found

Clay shrink and swell, poor fill, water, leaking lines or a failing footing.

Honest options

Stable settling is left alone and monitored. Active settling gets fixed.

Support to firm ground

Piers placed under the footing where the soil above can no longer carry it.

Lift where safe

Corners raised gradually while we watch brick, plaster and pipes.

Water fixed too

Downspouts, grading and drains sorted so the same corner does not drop again.

Settling and sinking foundations cost in Pittsburgh

JobTypical rangeWhat moves it
Floor elevation survey with written findingsFree with inspectionReport letters priced separately
Drainage fix at one corner (downspout, grading)$600 – $2,200Length of extension and slope
Piers under one corner (3–4 piers)$5,500 – $12,000Depth to firm soil and access
Interior support posts or beam work$1,200 – $4,500Span and number of posts
Brick crack repointing after stabilizing$500 – $1,800Area and brick type

Typical 2026 ranges for Pittsburgh-area houses, to help you plan. Your price comes after the free inspection, itemized and in writing, and the work starts only when you agree to it.

On the job

Carpenter's level on an original hardwood floor showing a slope toward an outside wall, with a gap under the baseboard
Carpenter's level on an original hardwood floor showing a slope toward an outside wall, with a gap under the baseboard
Worker using a laser level on a tripod to survey floor elevations in the basement of a settling older home
Worker using a laser level on a tripod to survey floor elevations in the basement of a settling older home

Questions about settling and sinking foundations

Is my house still settling or did it stop?

One set of readings cannot always tell. If cracks have sharp clean edges, or paint has split recently, it is likely active. Where it is unclear, we mark the cracks and recheck after a season, which costs you nothing.

Will piers lift my house back to level?

Often part of the way, sometimes most of it. We lift slowly and stop when brick, plaster or plumbing tell us to. Bringing a house back perfectly level after decades is rarely wise.

Why does my door stick only in summer?

Seasonal sticking points to the clay shrinking and swelling under the house. Small seasonal movement is common here. If it gets worse year after year, the house is still moving and should be checked.

Can a leaking pipe cause settling?

Yes. A leaking water or sewer line under or beside the footing softens the soil or washes it away. We check for signs of it and tell you if a plumber should camera the line.

Is a sloping floor always a foundation problem?

No. In older houses it can be a sagging beam, a cut joist or a failed post in the basement. Those are cheaper fixes, and our inspection separates them from true foundation settling.

How long does settling repair take?

Drainage fixes take a day. Piers under a corner usually take two to four days, including digging, installing, lifting and backfilling.

Crack, damp wall or a door that stopped closing?

Book a free inspection anywhere in Pittsburgh and Allegheny County. You get the cause, the fix and the price in writing before any work starts.

Call (412) 643-4360