Carrollton Foundation Experts connects homeowners who need slab foundation repair in Carrollton, TX with an independent local foundation company that can measure the slab, find what moved it and lift it back toward level.
Carrollton had 573 residents in 1920 and 133,434 at the 2020 census. Nearly all of that growth came as Dallas suburbs spread north, and most of the houses built during it sit on concrete slabs poured directly on clay. Many of those slabs have now been through decades of wet springs and dry summers, which is why slab repair is one of the most common foundation jobs in the city.
How a Slab Tells You It Has Moved
- Doors that drag on the floor, rub at the top or stop latching
- Cracks angling up from the corners of doors and windows
- Brick veneer cracked in a stair-step pattern, or pulling away from window trim
- Tile cracked in a line, or floors that feel tilted when you walk across them
- Exterior trim and garage doors that no longer sit square
Why Carrollton Slabs Move
Carrollton sits on the North Texas clay that expands when it absorbs water and contracts as it dries. A slab handles that well when the whole footprint stays about equally moist. Problems start when one area changes: downspouts emptying at a corner, a flower bed that holds water against the beam, a mature tree drawing moisture from one side, or a leaking drain line under the slab.
How the Repair Works
- Elevation readings across the floor show which areas have dropped and by how much.
- A repair plan sets the number, type and location of piers.
- Excavation beside the perimeter beam, and tunneling or floor access for interior piers.
- Piers such as pressed concrete, steel or drilled bell-bottom are installed.
- The lift: the slab is raised gradually toward level and held with shims.
- Backfill and final readings document the result.
Carrollton's Permit Rule
The City of Carrollton states on its website that all foundation repairs require a permit regardless of valuation and must be designed by a professional engineer, with an inspection scheduled when the work is complete. It lists 972-466-3225 for questions. Ask any contractor to confirm that they will pull the permit, and keep the permit record with your repair paperwork. Buyers and their inspectors may ask for it later.
Plumbing Before and After
Older Carrollton houses may still have original drain lines under the slab. A leak there can soak the clay and push part of the slab up, and lifting a slab can stress pipes that were already weak. A plumbing leak test before and after the work is common practice.
Questions to Ask
- How many piers, what kind, and where are they on the drawing?
- Will I receive before-and-after elevation readings?
- Who pulls the City of Carrollton permit?
- What does the warranty cover in writing, and does it transfer?
Three Counties, One Kind of Soil
Carrollton is one of the few North Texas cities that spreads across three counties: Dallas, Denton and Collin. County lines change your appraisal district and sometimes your school district, but not the ground under the house. From the older blocks near Downtown Carrollton to neighborhoods in the Denton County part of the city, slabs rest on clay that reacts to moisture the same way.
Common questions
How much does slab repair cost in Carrollton?
The number of piers drives most of the price. Angi's cost guide lists about $1,000 to $3,000 per pier and an average repair near $4,530, and a 2026 roundup of contractor-reported jobs put the average booked foundation repair in Dallas at $11,117. Permit fees and plumbing tests are often listed separately.
Does Carrollton require a permit for foundation repair?
The City of Carrollton states that all foundation repairs require a permit regardless of valuation. Ask the contractor to pull it, and keep a copy of the permit record.
My house was built in the 1970s or 1980s. Is that a factor?
Age itself is not the problem, but older houses have had more seasons of soil movement, may have original plumbing under the slab and may have had earlier repairs. Share any paperwork you have with the inspector.
Will my wall cracks close after the lift?
Some close partly. Most homeowners still patch and paint afterward, and some doors need adjusting.
Can I stay in the house during the repair?
Usually. Expect noise, crews in the yard and possibly some interior access for inside piers.
Does it matter which county my Carrollton house is in?
Not for how the foundation is repaired. The clay soil is the same across the city. The City of Carrollton permit applies citywide.