Sinking Or Uneven Floors In Greater San Antonio

Wednesday, November 14th, 2012 by Baird

How Foundation Problems Can Lead To Floors That Are Sinking Or Uneven

This wood floor in a Universal City home is sinking by 1/2". It's located over a crawl space.

Sinking floors can lead to a variety of other issues, including jamming doors and drywall cracks.

In addition, uneven floors over crawl spaces are often accompanied by serious mold problems.

The Problem:

The floors in your home are significantly out of level.

Telltale Signs:


  • Sinking or Heaving Concrete Slabs
  • A Floor That Sags Toward the Center of the Houses
  • Interior Doors Jamming
  • Floor Cracks
  • Mold & Rot In The Crawl Space 

How to Fix It:

If you have a crawl space and the floors above are out of level, you mayhave a structural problem in your crawl space. Crawlspace jacks canaddress the structural problems.

Ifa concrete slab is uneven, it could be becauseofsettlement or foundationheaving.Foundation settlement can be solved by installing foundationpiers.Foundation heaving can be a very complicated problem, anda foundationcontractor shouldinspect the problem in person.

Wefix the foundation problems that cause sinking floors! Call us fora freefoundation repair quote today!

Weserve NewBraunfels, Seguin, Kerrville, Beeville, Uvalde, Converse, Boerne,Schertz, Floresville, Lockhart, Universal City andmany nearby areas in Texas.

Causes & Solutions For Uneven Floors

Uneven floors are rarely caused by problems with the floor system itself. Instead, it's often a settling or shifting foundationissue that has impacted the floor system.

Floor beams and joists are made from wood that will usually bend or flex rather than crack or break. The same can't be said for masonry foundations. When soil issues cause a foundation to break, the floors above usually bend.

Floors Above Crawl Spaces

The floor joists above a typical crawl space are supported by theperimeter walls of the crawl space foundation, and by a post orcolumn-and-beam framework that extends down the center of the crawlspace

Althoughthe perimeter walls of a crawl space can settle or shift to causefloor problems above, it's more common for the center support systemto settle or sag because it wasn't properly built in the first place.

A center post-and-beam support system can also weaken and settle because moisture in a dirt-floored crawl space has caused woodsupports to rot and collapse. As crawl space structures begin to sag,the floor above will sag in turn.

Other symptoms of a sagging crawl space include interior wall cracks,jamming doors, and gaps between walls or doors and the floor underneath them.

Moreabout sinking, sagging crawl spaces.


At Baird Foundation Repair, we can quickly and effectively repair acrawl space structural issue with our heavy duty crawlspace jacks.Crawl space jacks are adjustable steel posts that will stabilizesagging crawl space structures.

Duringinstallation, we prepare a base of compacted engineered fill at alljack placement points, located directly beneath the main supportbeam. We install a pre-cast concrete base on this fill, and thenextend a crawl space jack between the base and the beam.

Once each jack's threaded rod is adjusted beneath the post, the weightbearing on the beam is transferred to the soil below. Additionally,this system allows the contractor to push a sagging floor back towardits original level position.

Our warranted crawl space jacks caneffectively stabilize your crawl space -- usually in a day.

More about crawlspace jacks.

Settling, Sinking Concrete Floors

Since masonry is more likely to break than bend, concrete floors that areuneven are generally cracked and/or broken as well.

If your foundationis settling,it may be lifting the concrete floor as the rest of the foundationexperiences movement.

There are also times where the slab floor can lift or sink independently ofthe walls. Concreteslab floors crackand settle when the soils underneath them shrink, settle or washaway.

Likewise, a concrete slab will lift, or "heave", when the soilsunderneath expand.

A concrete slab canmove independently of adjacent foundation walls, or along with them.Since settlement isn't uniform, one section of a slab may be elevatedas another section sinks down.

More about foundation settlement.

More about sinking slab floors.

The Solution:

Slab floors that are sinking independently of the walls can be repaired with a slab pier system,shown on the right. These piers are placed in cored holes in the floor, extending down to competent soils to hold your floor in place. They can even be used to lift a slab back to its original, level position.

Ifthe floor is cracked and uneven because of foundationsettlement,then your contractor will recommend either foundation pushpiers or helicalpiers tostabilize the entire foundation. Foundation piers can also be used tolift the foundation to its original position in some cases.

Foundation heave is a complicated and multifaceted problem that requires a professional inspection.

More about foundation heave.

We're Your Local Foundation Repair Experts in TX

To get your foundation fixed permanently, you will need to know exactly what is going on with your home -- and which solutions will bestaddress the problem. It costs nothing to have a professional help youfind out!

Our team of certified, in-house foundation experts can help. During our foundation repair quote, we'll personally inspect your foundation issue, explaining what'shappening with your home and making suggestions for repair. Each ofour visits comes at no obligation, and it includes a writtenfoundation repair estimate.

To schedule your free quote, call or e-mail us today! We proudly serve San Antonio, Laredo, Corpus Christi, Floresville, Universal City, Schertz, Canyon Lake, Converse, Boerne and nearby.

our service area

We serve the following areas

  • Blanco
  • Bloomington
  • Buda
  • Canyon Lake
  • Cost
  • Cuero
  • Driftwood
  • Dripping Springs
  • Edna
  • Fischer
  • Fulton
  • Ganado
  • Gillett
  • Glidden
  • Gonzales
  • Hallettsville
  • Hye
  • Inez
  • Johnson City
  • Kingsbury
  • Kyle
  • Leesville
  • Lockhart
  • Lolita
  • Luling
  • Marion
  • Martindale
  • Maxwell
  • Mc Queeney
  • Meyersville
  • New Braunfels
  • Nixon
  • Nordheim
  • Port Lavaca
  • Port O Connor
  • Round Mountain
  • San Marcos
  • Seadrift
  • Seguin
  • Smiley
  • Spring Branch
  • Stonewall
  • Tivoli
  • Victoria
  • Westhoff
  • Willow City
  • Wimberley
  • Wrightsboro
  • Yoakum
  • Yorktown
Our Locations:

Baird Foundation Repair
726 Hot Wells Blvd
San Antonio, TX 78223

Baird Foundation Repair
2427 Rand Morgan Rd
Corpus Christi, TX 78410