Average Cost Slab Foundation Repair

♦ December 11, 2012 ♦ Leave Your Comment

Frequently Asked Questions

  1. QUESTION:
    On average how much does foundation repair cost?
    We have one corner of our house that has already been repaired by the previous owner, but now the grout outside is getting cracks in it again. That’s the only area of the house that has problems. We are going to get professional estimates, but I’d like to hear input from others.
    My husband has looked at the foundation from where he can and the slab is NOT cracked, so perhaps it is just cosmetic.

    We live on that black land soil which cracks during the summer.

    • ANSWER:
      It is not uncommon in Texas for houses to have concrete slab foundations with cracks at the corners. This is not generally associated with an actual cracked slab but is due to stress at the corners. This can be cosmetically repaired if you like for 0 or so per corner but may not last long. You can even make the repairs yourself.

      If the foundations is truly cracked and you have walls that are also cracked and/or doors which will not close properly, then might you have more serious problems and need professional help. The average foundation repairs are in the range of ,000 to ,000 depending upon the type of repairs required, how deep they have to dig around your house, the number of pilings they have to place into the ground, etc.

  2. QUESTION:
    What is an average cost for repairing a front porch. It is composed of 2 sandstone slabs & supports a railing?
    The concrete connecting the railing has deteriorated as has the concrete sealing it to the house. The slab now shifts when stepped on. The cinder blocks underneath also appear to have sunk.

    • ANSWER:
      You shouldn’t pay more than – sqft (demolition your previous concrete is included) to pour the porch. Usually we charge 0 to install 100 blocks. To pour foundation it’s about for liner foot. So if your perimeter is 12′ by 22′ it should be about 0.

  3. QUESTION:
    Average cost to repair sewer break at slab foundation?

    • ANSWER:
      I don’t think that there is an average cost. It depends on how deep, and how much trouble it is to get to, and why it broke. If it’s really difficult to get at, you might look into trenchless repair.

      Here’s a site that has some videos about trenchless repairs:

      http://www.trenchlesssewerlinereplacement.net/index.php

  4. QUESTION:
    Cement patio and steps estimate …?
    I am looking at putting a bid on a new house and I need to have some idea as to how much it would cost to repair/replace a patio and 10 steps that have buckled due to slow erosion.
    Patio is 15×15 ft, 4″ thick
    Steps are 4 ft wide, 8″ rise and 10″ deep
    Steps go down from this patio to another larger patio that has no damage.
    there is no retaining wall at present, and I am thinking that one should be put in place … rebar/mesh on patio and retaining wall – any thoughts here?
    Erosion process appears to be very slow, the buckling occuring over the course of 12-15 years. Yet, I am thinking that stabilizing the area a bit will also protect the foundation of the house which currently does NOT show any cracks.
    Would appreciate it if you could help me think thru this job and come up with a cost estimate that includes Materials and Labor.
    I live in St Louis, MO.
    Thanks

    • ANSWER:
      Terrain is the key issue on this estimate.
      Can a backhoe/concrete truck easily get to this old slab patio?
      Option # 1 *Easy access
      Bust out existing slab/steps and truck away
      Backhoe/Truck/Operator/Laborer 1 day $ 1,500
      Prep/Compact Fill for slab & Form Patio Mat/Lab. $ 400
      Form new steps Carpenter/laborer 32 man hrs. $ 800
      Materials to form steps .00
      Concrete for slab $ 350
      Concrete for steps 0
      Pour and Finish slab and steps 2 finishers or 1 finisher and 1 helper total 16 man hrs. 0
      Clean up labor 0
      Total 95.00 *add overhead/Profit = 0
      Grand Total $ 4645.00

      Option #2 Difficult Access
      base bid $ 4645.00
      add to wheel or buggy concrete 0
      Carry lumber/demo materials to area or wheel barrow in.
      add 0
      Grand Total 95 and up.

      Retaining walls if poured concrete 10″ thick with vertical and horizontal rebar on 24″ wide x 12″ thick keyed footing x 4′ high and 50′ long or less *easy terrain – per lineal foot
      50′ or more – per lineal foot. In other words a 50′ long wall 4′ high would have an estimated cost of $ 2,000
      a 100′ wall average would be 50.
      Add more labor for hard to get to site up to 25% more cost.
      Additional site work may be needed to backfill and regrade around the work area. Finish grade,seeding,would all be at additional costs.
      *Labor to form steps is very time consuming, so is the finishing of concrete steps. Faces of steps (risers) forms must be pulled after concrete sets up a while, water tends to be a problem so the steps must be poured with a higher slump ( stiffness) it really is an art to watch a good cement finisher work on a set of steps.
      Good Luck

average cost slab foundation repair

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