Sloped lots mean Atlanta has a lot of basements, crawl spaces and retaining walls, and all of them react to water in clay soil. This page helps you tell a nuisance from a structural problem. For anything structural, a licensed professional engineer should have the final say.
The price ranges on this page are national figures published by HomeGuide for 2026. They are not quotes from us. In Atlanta the slope of the lot, the red clay under the slab, truck access and local labor and material prices all move the number. Last checked October 2026.
Are the cracks in my foundation serious or cosmetic?
Thin vertical or diagonal hairline cracks in a poured wall are usually shrinkage and are cosmetic. Signs of something serious are a crack wider than about a quarter inch, one side standing out from the other, a horizontal crack along a block wall, a wall that bows inward, or doors and windows above that have started to stick. Mark the ends of the crack in pencil with the date and check again after a rainy month. Nationally, minor foundation crack repairs cost $250 to $800.
My front steps are pulling away from the house. Is that a foundation problem?
Usually it is not. Steps and stoops are commonly built on their own shallow base over backfilled soil, apart from the house foundation. When that fill settles or washes out, the steps sink and tip, leaving a gap at the wall. Many can be lifted and the gap sealed. If they are badly cracked or hollow beneath, rebuilding them on a proper footing is the better fix. Look at where the nearest downspout empties, since that is often the cause.
My garage floor has dropped on one side. Is it a leveling job or a foundation problem?
Look at the walls. In most houses the garage floor is a separate slab that rests on fill inside the foundation walls. If the floor has dropped but the walls and the door opening are straight and free of cracks, it is normally a leveling job. If the walls are cracked, the door frame is out of square or the gap follows the foundation itself, have an engineer look before anyone lifts the slab.
My retaining wall is leaning after heavy rain. What should I do?
Treat it as urgent if it holds up a driveway, a building or a neighbor's yard. A retaining wall starts leaning after heavy rain when water builds up in the clay behind it and adds pressure. Blocked or missing drains are the usual reason. Keep people and cars away from both the top and the bottom, photograph it, and have it inspected. Some walls can be relieved with new drainage. A wall that has moved a long way is normally rebuilt, with an engineer's design where the height calls for one.
One company quoted $18,000 for piers on a basement wall crack and another $1,500 to seal it. Which is right?
They are quoting two different jobs, so the first step is to find out which problem you have. Sealing stops water coming through a crack that is not moving. Piers hold up a foundation that is sinking. If the crack is steady, $1,500 may be all that is needed. If the wall is going down or bowing, sealing only hides it. Before you spend $18,000, pay an independent structural engineer who does not sell repairs to say whether the wall is moving. National figures are $2,000 to $12,000 to fix foundation leaks and $4,500 to $20,000 for settling, sinking or bowed walls.
My basement or slab floor is damp and has a white powder on it. What is that?
The white powder is efflorescence. Moisture moves through the concrete, dries at the surface and leaves mineral salts. It is harmless in itself, but it shows that water is reaching the wall or floor from outside. Basements cut into Atlanta's hillsides get this where the uphill side has poor drainage. Work on the outside first: extend the downspouts, slope the soil away from the wall and repair any paving that tilts toward the house. Sealing the inside comes after that.
Does homeowners insurance cover a retaining wall, foundation or slab?
That depends on your policy and on what caused the damage, and only your insurer can say. In general, policies respond to sudden events named in the policy and tend to exclude slow settling, earth movement, wear and ground water. Read the policy and ask your agent before you assume one way or the other. We can give you a written description of the damage and a repair estimate for a claim.
How deep do footings need to be in Georgia?
Georgia's state amendments to the residential code say all exterior footings shall be placed at least 12 inches below grade. Frost does not go deep here, so that minimum is shallow compared with northern states. The real questions in Atlanta are whether the footing sits on firm, undisturbed soil and not on fill, and how it steps down a slope. The local building office and the engineer set the final depth for a given structure.
The real price for your property comes from a free on-site estimate and a written quote. Call (678) 736-8780 or send us a photo of the concrete.