✓Limestone close to the surfaceGainesville sits on limestone that water slowly dissolves. Alachua County says sinkholes form most often in the west and center of the county. There the rock is bare or under less than 25 feet of sand. A county engineer told WUFT the limestone near Haile Plantation is closer to the surface than in other parts of the county.alachuacounty.us
✓Sand on top, clay belowUSDA soil surveys show common Gainesville soils with about four to six feet of sand on top. Under that is a loamy layer with more clay. Water moves fast through the sand and slows at the clay. When one side of a house stays wetter, that side can settle.soilseries.sc.egov.usda.gov
✓A high water table in wet monthsThe Millhopper soil, named for the Devil's Millhopper area, has a water table about four to five feet down for one to four months in most years, according to USDA. In some years it rises higher. Wet ground under a slab carries weight less evenly.soilseries.sc.egov.usda.gov
✓Rain in big summer stormsGainesville gets about 48 inches of rain in a normal year, according to the National Weather Service. The county says soil sinking is common in very wet spells, most of all after dry ones. A wet summer after a dry spring is when many owners first see new cracks.forecast.weather.gov
✓Other causes the county namesNot every sinking house sits over a sinkhole. Alachua County lists buried land-clearing debris, rotting stumps and roots, leaking water pipes, cracked pools, loose soil around utility lines and runoff from roofs and gutters. A good inspection rules these in or out.alachuacounty.us
What it costs
Typical published ranges for Gainesville. The contractor's written estimate is the price, and the inspection is free.
Work
Typical range
Inspection and written estimate
Free
Foundation repair in Gainesville, small to majorHomeBlue Gainesville cost guide
When a house settles, it is almost never the whole house at once. One corner drops. One side sinks after a wet summer. The frame tries to follow, and that is when you see cracks, sticking doors and floors that are not flat.
Foundation repair has two jobs. First, get the part that moved back as close to level as it can safely go. Second, keep it there, so you do not pay for the same problem in five years.
You do not need to know which fix you need before you call. That is what the free inspection is for.
Does this sound like your house?
Tell us what you see in your own words. These are the problems Gainesville homeowners call about most.
"There is a crack over my bedroom door and it keeps getting longer."
"The back door will not shut unless I lift it."
"My floors slope. A ball rolls to one side of the room."
"The block wall outside has a crack that looks like stairs."
"The floor feels soft or bouncy in the hall." This is common in older homes with a crawl space.
"There is a low spot in the yard right next to the house."
"Tiles in my kitchen keep cracking."
"Water stands by my house after it rains."
If any of these sound like your house, a local crew can tell you why it is happening and what it takes to fix it.
How a local crew fixes it
The inspector picks the fix based on your house, your soil and what caused the movement. These are the common methods.
Steel push piers
Steel pipe is driven down in sections under the edge of the house. It goes down until it hits firm ground, which in Gainesville can be deep. Then the house is lifted and set on the piers. Crews often choose steel piers here because they can reach far down.
Helical piers
These are steel shafts with flat, screw-like plates. They are turned into the ground like a big screw. Crews use them for lighter loads, porches and add-ons.
Grouting
Sometimes the problem is loose sand or a gap in the rock below. Then the crew may pump grout into the ground to fill the gaps and firm up the soil. This is common in sinkhole repair. See sinkhole repair.
Crawl space leveling
For older homes with a crawl space, the crew goes underneath. They replace rotted wood, add new supports under sagging beams and bring the floor back to level. See pier and beam repair.
Slab lifting and support
For slab homes, piers go along the outside edge and sometimes inside. Low spots in a slab can also be raised with foam. See slab foundation repair.
Fixing the water
If water caused the problem, piers alone will not stop it from coming back. Gutter extensions, regrading and French drains move water away from the house. See drainage correction.
Patching cracks
After the house is level, cracks in the slab, block walls or stucco can be sealed. See foundation crack repair.
What a good inspection covers
A real inspection is more than a look at one crack. Expect the crew to do these things.
Take floor level readings across the whole house, not just the problem room.
Map cracks inside and outside.
Open and close doors and windows to see which ones bind.
Check gutters, downspouts, grading and trees near the house.
Look for low spots or holes in the yard.
Ask about leaks, pools and when you first saw the problem.
Give you a written plan that shows where each pier goes and why.
If the signs point to a sinkhole, the crew should say so. Florida law sets its own steps for sinkhole claims. An engineer or geologist usually tests the ground first.
About these prices
The cost guides above show typical ranges, not quotes. Your price comes in writing after the free inspection. The number of piers drives most of the price. Inside piers cost more because the crew has to cut or tunnel under the slab. Read the full cost guide to see what else moves the number.
Questions to ask before you sign
Is the plan based on floor level readings across the whole house?
How many piers, what kind, and where do they go?
What does the warranty cover, for how long, and does it transfer if I sell?
Who pulls the City of Gainesville permit?
What is your Florida contractor license number?
Does the price include cleanup and patching cracks?
What will you do about the water problem, if there is one?
Frequently asked questions
What is the most common foundation fix in Gainesville?
For slab homes, it is usually piers set under the part of the house that sank. The house is then lifted and held there. For older homes with a crawl space, it is usually new supports and shims to level the floor.
How long does foundation repair take?
Most home pier jobs take one to three days. Grouting, drainage work or a bigger job can take longer. Your written estimate should list the schedule.
Will the repair close my cracks?
Lifting the house often closes cracks part of the way. Drywall, stucco and tile usually still need patching after. Ask what the price includes.
Do I need a city permit?
The City of Gainesville says repairs to a building need a permit under the Florida Building Code. Its small-job permit exemption does not cover structural work. The contractor should pull the permit.
How do I check that a contractor is licensed?
Florida's licensing agency says structural work needs a state contractor license. You can look up any license at myfloridalicense.com. An LLC number is not a license.
Can I stay in my house during the work?
Usually yes. Most pier work happens outside along the edge of the house. Inside piers are louder and messier. The crew will tell you what to expect before they start.
Does a crack always mean I need repair?
No. Thin hairline cracks in concrete and drywall are common and often cosmetic. Cracks that grow, cracks wider than about a quarter inch and cracks that come with sticking doors are the ones to check.
Will foundation repair hurt my home's value?
A buyer's inspector looks for movement either way. A finished repair with paperwork and a warranty is usually easier to sell than a problem nobody fixed.
Book your free foundation inspection
The sooner you know what is going on, the smaller the fix tends to be. Call (352) 724-7728 or send the short form. A local foundation crew will call you back, usually the same day. The price comes in writing before any work starts.