porch repair

Concrete Jack performs porch repair by raising settled concrete porches back to their original position using slab jacking and foam jacking.  This corrects settlement problems to fix trip hazards, correct improper step heights, improve drainage and fill voids under unsupported concrete.  Sometimes, foundation piers are required to lift settled porches, but this is pretty infrequent.

What causes the need for porch repair?

foam jacking for porch repair

Porch repair using foam jacking.

Settlement is the most common reasons homeowners and property managers require porch repair.  When your home is built, particularly if it has a basement, or a crawlspace, the material placed under the concrete porch is not compacted properly.  Over time, the backfill soil settles, which reduces support of the porch.  Some porches sit on top of special walls so they don’t settle. In this case, voids form under the porch, but it doesn’t necessarily sink.  If the voids are large and extensive enough, they can cause the concrete porch to start to settle.

The need for drainage improvement usually results from porchs settling so much that they slope towards the house instead of away.  This is common with porchs that run alongside homes with basements.  When water flows towards a house due to an incorrectly sloped porch, it can cause moisture problems and foundation problems.  Lifting your porch to establish good drainage is much less expensive than repairing your foundation or re-waterproofing your basement.  

Filling voids is a really common porch repair.  If there are voids (air spaces) below your porch, it’s pretty much guaranteed to start settling or deteriorating eventually.  Filling voids before a porch starts to settle is much quicker and easier than lifting a porch after it’s broken and settled.  An ounce of porch repair prevention is worth a pound of porch repair cure.

Porch Repair Methods:

We perform three different process, slab jacking, foam jacking, and piering, for porch repair.  All three processes work to lift settled porch concrete back to its original position.  Mud jacking works to raise settled porch concrete by injecting sand-based grout under the concrete.  Foam jacking raises and supports settled concrete porchs by injecting high density polyurethane foam under the concrete.  Piering is rarely needed, but uses steel piers either pushed or screwed into the ground, and mechanical jacks to lift the porch back into place.

Porch problems that we repair using mud jacking include voids (air spaces) under porchs and porch settlement.  The most common cause of these problems is settlement of the underlying soil because it wasn’t packed down when the house was built or porch was installed.  Generally, it takes about 10 years for the backfill material to settle on its own after it is installed.  Mud jacking and foam jacking tend to have slightly lower chances of resettlement than concrete replacement, which is the more common, and expensive, method for repairing sinking porchs.

Porch Repair Cost:

Generally, porch repair using slab jacking and foam jacking costs around 1/2 the price of replacement.  Mud jacking and foam jacking for porch repairs generally take about 20 minutes per piece, but can take a bit longer if the sections have all settled differently.  You may walk on porchs that have been repaired using mud jacking or foam jacking during and immediately afterwards.  Piering is the most expensive of the three processes, and is used occasionally, generally when porches are exceptionally heavy relative to their area.

Please Note:

porch repair using slab jacking

Porch repair using slab jacking.

We do not replace concrete.

We do not make cracks go away.

We do not caulk or fill cracks.

We do not patch surface deterioration.

We can not lift asphalt (blacktop).

Porch Repair Project Profiles: