Home / Foundation Crack Repair in Hattiesburg, MS
Foundation Crack Repair in Hattiesburg, MS
Not every crack is a structural problem, and not every structural problem looks dramatic. This page explains how to read cracks in your Hattiesburg home and how repairs differ.
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Reading the Crack
Cracks tell a story through three things: their shape, their width and whether they change. Take photos with a coin or tape measure for scale, write the date on a note in the frame, and look again in a few weeks. A company or engineer can learn a lot from that record.
Vertical hairline cracks
Thin vertical cracks in poured concrete or slab edges are common as concrete cures and shrinks. They are often cosmetic, but water can enter them, so they are worth sealing and watching.
Diagonal cracks
Cracks running at an angle from the corners of doors and windows suggest one part of the house is moving differently from another. These usually deserve a professional look.
Stair-step cracks
In brick and block, cracks that follow the mortar joints in a stair pattern often point to settlement or movement in the wall below.
Horizontal cracks
Horizontal cracks in a block or poured wall can mean soil or water pressure pushing on the wall. These are generally treated as more serious.
Why Foundations Crack in South Mississippi
The Hattiesburg area averages roughly 60 inches of rain a year by NOAA climate normals, and it can swing from saturated ground to dry, hot spells within a season. Mississippi State University Extension materials describe how clay soil absorbs water, swells, and then shrinks as it dries, forming cracks that can extend deep and affect foundations. Not every lot in the Pine Belt has the same soil, which is why one house on a street can move while its neighbor does not.
Common contributing factors include:
- Gutters and downspouts that deliver roof water to the foundation instead of away from it
- Soil that slopes toward the house or has settled against the wall
- Large trees close to the house that dry the soil in summer
- Plumbing or irrigation leaks near the footing
- Fill soil that was not compacted well when the house was built
- Poor original footing depth or reinforcement, which is more common in older construction
How Cracks Are Typically Repaired
Repairs depend on whether the crack is still moving, and why. A company should explain which of these applies to your home before it proposes anything:
- Sealing or injection. Epoxy or polyurethane injection can seal cracks in concrete to stop water entry. It does not stop the movement that caused the crack, so it is usually paired with fixing the cause.
- Stitching and reinforcement. Carbon-fiber straps or steel braces can be applied to walls that are bowing or cracking under pressure.
- Underpinning or stabilization. If part of the foundation has settled, companies may install piers or other supports to carry the load on deeper, more stable soil, and then lift the structure where appropriate.
- Masonry repair. Cracked brick and mortar are repaired and repointed, usually after the underlying movement is addressed so the cracks do not return.
- Water control. Gutters, grading, drains and moisture management, often the part of the plan that keeps the repair from being redone.
A crack repair that ignores the cause is cosmetic. Ask any company how its plan stops the movement or confirms that the movement has stopped, not just how it fills the crack.
What to Have Ready When You Request a Quote
- Photos of each crack with a coin or tape measure for scale, inside and outside
- The approximate age of the house and whether it is a slab or raised foundation
- When you first noticed the crack and whether it has changed
- Any sticking doors, sloping floors or water problems you have noticed
- Any past repairs, drainage work or tree removal near the house
The more specific you are, the better a company can prepare for the first visit. Our cost factors guide explains what changes the scope of a job so you can compare proposals fairly.
Questions to Ask About Crack Repair
- Is the crack still moving, and how do you know?
- What caused it, in your assessment?
- Will this repair stop the cause or only seal the crack?
- What is covered by the warranty, and for how long?
- Should an independent engineer look at this before we commit?
A good answer is specific to your house. A vague answer or high pressure to sign on the spot is a reason to slow down and get a second opinion.
Common Questions
Which foundation cracks are normal?
Thin vertical hairline cracks in new concrete are common as it cures. Cracks that stay the same size over time and do not come with sticking doors or sloping floors are often cosmetic, though they should still be watched and sealed against water.
Will a crack get worse on its own?
It can. If the cause is ongoing, such as poor drainage or soil movement, a crack may widen over time. Photos taken a few weeks apart show whether it is changing.
Is epoxy injection enough to fix a foundation crack?
Injection seals a crack against water and can restore some strength to a concrete wall, but it does not stop the movement that created the crack. It works best when the cause has been addressed as well.
Ready to Have Your Foundation Looked At?
Call or send a request. We will route it to an independent, insured local company that handles foundation work in the Hattiesburg area.