Foundation repair in Hattiesburg costs $4,000–$15,000 for most homes, piers $1,200–$3,000 each. The Hattiesburg Formation is interbedded and listed by MDOT among high-volume-change soils — so active material often underlies only part of a footprint.
Why the ground varies inside a single lot, what that means for your quote, and how to gather the useful information yourself before anyone arrives.
The ground has this city's name on it
The Hattiesburg Formation is a mapped geologic unit running across south Mississippi, and the Mississippi Department of Transportation lists it, with the Pascagoula Formation, among soils having high volume change — material that swells when it takes on water and shrinks when it dries.
The part that matters for your house is that it is not one material. It interbeds clay, sandy clay, sand and siltstone in alternating layers, and geologic layers do not respect property lines. One corner of a house can bear on an expansive lens while another bears on sand that barely responds. The result is movement over short distances rather than a whole building settling together.
So the question is where, not whether
That changes what a quote should contain. On uniform soil the argument between two bids is usually about depth. Here it is about extent — whether your house needs support along one wall or three, which is a difference of many thousands of dollars.
Only an elevation contour taken corner to corner across the whole footprint answers it. A reading beside the visible crack tells you about that spot and nothing else. We take the contour free, and you keep it whether or not you hire us.
What you can establish yourself, for nothing
- Which rooms are affected — and, just as usefully, which are not
- Which way floors fall: a marble is an adequate instrument
- Whether the floor falls one way or dips through the middle — those mean different things
- Whether cracks change between summer and winter
- Where water stands after heavy rain, at 64.4 inches a year
What we do
Foundation Piering & Underpinning
Steel where the contour says, and nowhere it does not. Extent is the price, not depth.
Slab Foundation Repair
A slab spanning two different grounds is being asked to bridge a boundary it cannot see.
Foundation Crack Repair
Where the crack sits on the footprint matters more than how wide it has become.
Drainage Correction
64.4 inches a year, and expansive layers only care about the water that reaches them.
Concrete Leveling
Flatwork crosses the same buried boundaries the house does, with none of the weight.
Sloping & Uneven Floor Repair
A floor that falls one way tells you where. A floor that dips in the middle tells you something else.
Do I Need a Structural Engineer?
Usually not — but on ground that varies within a lot, there are three cases where it pays for itself.
Mississippi Licence Rules
Improvements over $10,000 need a Remodeler licence. Most foundation jobs clear that line.
What it costs
| The work | What it runs | Called for when |
|---|---|---|
| Piering | $4,000–$15,000 | The contour shows sections over active material |
| Slab repair | $3,500–$12,000 | Movement in part of a slab, often along a buried line |
| Sloping floors | $4,000–$15,000 | Floors falling one way, or dipping mid-house |
| Drainage correction | $1,500–$6,000 | Readings near flat and symptoms tracking rainfall |
| Crack repair | $400–$1,500 | The readings say movement has stopped |
| Concrete leveling | $500–$2,500 | Flatwork has dropped, house unaffected |
Full breakdown on the Hattiesburg cost guide.
Where we work
Across Forrest, Lamar, and Perry counties and out into Marion, Covington, and Jones — with no travel charge anywhere in them.
Petal · Oak Grove · Purvis · Sumrall · Lumberton · Richton · Columbia · Seminary · Ellisville
Full list on the service areas page.
What a free survey includes
- The elevation contour corner to corner, as numbers by location
- Crack widths measured, dated, and photographed for later comparison
- A walk of the outside, following where the roof sheds and where the ground sends it
- A written scope naming which sections need support — and which do not
- The depth assumption, the overage rate, and our Mississippi licence class
The document leaves with you regardless. Where the readings come back level and nothing has widened across a summer and a winter, the report says exactly that and recommends waiting. See the five questions we ask or book the survey.
Common questions
How much does foundation repair cost in Hattiesburg?
Budget $4,000-$15,000 for a full repair, or $1,200-$3,000 for each individual pier. Smaller categories are far cheaper - sealing cracks starts around $400 and water management around $1,500. Your position in the range follows how much of the house sits over ground that is genuinely active.
Why would only part of my house be affected?
Because the ground here is layered rather than uniform. The Hattiesburg Formation interbeds clay, sandy clay, sand and siltstone, and the Mississippi Department of Transportation lists it among high-volume-change soils. Expansive material can lie under one end of a house and not the other.
What is the first thing I should do?
Note which rooms are affected and which are not, and roll a marble to see which way floors fall. That contrast is the most useful information you can gather, and it costs nothing. Then get an elevation contour taken across the whole footprint.
Do you charge for the survey?
No. The elevation contour corner to corner, dated crack measurements, an exterior water review, and a written scope carry no charge anywhere we serve - and neither does reading someone else's quote with you.
Does foundation repair need a licence in Mississippi?
Improvements to an existing residence exceeding $10,000 require a Remodeler licence from the Mississippi State Board of Contractors. Most full foundation repairs clear that figure. Ask for the number and verify it with the board.
How long does the work take?
Most residential jobs run two to five working days on site once the layout is set, and the house stays occupied. Drainage work is usually one to two days. Concrete leveling is often finished within hours.
Get a free Hattiesburg elevation survey
Tell us which rooms are affected and which are not. On interbedded ground that contrast is the most useful thing you can give us — a house where the front is fine and the back bedroom is dropping is telling us something about what each end is sitting on. Same working day reply.