✓Clay that swells and shrinksUSDA soil surveys show that common soils around Lubbock have a sandy or loamy top layer over a subsoil with more clay. Clay soaks up water and swells. Then it dries out and shrinks. Under a house, the ground under one part pushes up while another part drops.soilseries.sc.egov.usda.gov
✓Caliche a few feet downBelow that clay, many local soils turn into caliche, a hard layer packed with lime. In common Lubbock area soils it starts roughly 2.5 to 5 feet down, according to USDA. Caliche matters for repair because it changes how deep piers go and how hard the crew has to push to reach firm ground.soilseries.sc.egov.usda.gov
✓Rain in burstsLubbock gets about 18.6 inches of rain a year, according to the National Weather Service. Much of it comes in heavy storms from late spring through September, after long dry spells. That swing from dry to soaked is exactly what makes clay move.weather.gov
✓A flat city that drains to playasLubbock streets are built to carry rain into playa lakes, shallow basins all over town. Soil on playa floors is 50 to 60 percent clay, according to USDA, and cracks deep when it dries. A Texas House bill analysis from 1999 notes that filling playas during building caused flooding problems in parts of Lubbock. Homes near a playa or on filled ground can see more movement.soilseries.sc.egov.usda.gov
✓Water around the houseA gutter that dumps at one corner, a yard that slopes toward the wall, a leaking sprinkler or a plumbing leak under the slab can keep one part of the soil wet while the rest stays dry. That uneven moisture causes a lot of the movement we hear about.
✓Shallow frost, not much heaveLubbock County is in a 12 inch frost line zone, according to a Texas housing agency notice. Freezing is a smaller cause here than in northern states. Clay and water are the main story.tdhca.texas.gov
What it costs
Typical ranges from published cost guides, not quotes. Every job starts with a free inspection and a written price, so you see the number before any work begins.
When a house settles or heaves, it is almost never the whole house at once. One corner drops. One side lifts after a wet month. The middle of a slab rises while the edges sink. The frame of the house 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 are not paying for the same problem in five years.
You do not need to figure out 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 are seeing in your own words. These are the problems Lubbock 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 brick outside has a crack that looks like stairs."
"The floor feels soft or bouncy in the hallway." This is common in older homes with a crawl space.
"There is a gap between my wall and the ceiling."
"Tiles in my kitchen keep cracking."
"Water stands next to 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.
Pressed concrete piers
Short concrete cylinders are pushed into the ground under the edge of the house, one on top of another, with a hydraulic jack. They go down until they will not go any further. Then the house is lifted and the gap is filled with steel shims and concrete blocks. These are often the lower-cost option.
Steel piers
Steel pipe is driven down in sections, often deeper than concrete piers. Crews choose steel when firm ground sits deeper or when the load is heavy. Steel piers usually cost more each.
Pier-and-beam re-leveling
For homes with a crawl space, the crew goes underneath and resets the supports. They replace rotted wood shims, 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 are placed along the outside edge and sometimes inside the house. See slab foundation repair for how inside piers work and what plumbing checks to ask about.
Fixing the water
If water caused the problem, piers alone will not stop it from coming back on the rest of the house. Gutter extensions, regrading and French drains keep moisture even around the foundation. See drainage correction.
Patching cracks
After the house is level, cracks in the slab, walls or brick 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:
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
Ask about plumbing leaks, sprinklers and when you first saw the problem
Give you a written plan that shows where each pier goes and why
About these prices
These are typical ranges from published cost guides. They are not quotes. Your price comes in writing after the free inspection.
The number of piers drives most of the price. Inside piers cost more than outside piers 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 permit?
Does the price include cleanup, backfill 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 Lubbock?
For slab homes, it is usually piers placed under the part of the house that sank, then the house is lifted and supported. For pier-and-beam homes, it is usually re-leveling the floor and replacing worn shims or weak supports.
How long does foundation repair take?
Most home pier jobs take one to three days. 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, brick and tile usually still need patching after. Ask what the price includes.
Do I need a city permit?
The City of Lubbock says work that changes a home's structure needs a permit, and contractors must register with the city. The crew should know the rules and pull any permit the job needs.
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, and the crew will tell you what to expect before they start.
What warranty should I expect?
Many foundation contractors offer a warranty on the piers they install, and some transfer to the next owner. Read what it covers and get it in writing with your estimate.
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 have checked.
Will foundation repair hurt my home's value?
A buyer's inspector looks for foundation 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 happening, the smaller the fix tends to be. Call (806) 855-8140 or send the short form. A local foundation crew will call you back, usually the same day, and the price comes in writing before any work starts.