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Foundation upheaval can lift an entire structure, but more often it forces parts of a foundation or slab upwards, while other sections remain stationary. Either way, the damage that results will require the expertise of a foundation repair specialist
Your foundation or slab floor is moving upwards, leading to cracks in the walls and floors of your home.
How to Fix It:
Unwanted water accumulating in the soil under your home - and the pressure it brings -- is typically the cause of slab and foundation heave. Dry Guys Basement Systems' first priority will be to eliminate water sources wherever possible. We will check for underground water line leaks, clogged drains, broken sprinkler lines, as well as faulty gutter and leader systems. Once we have fixed water problems, we can begin making repairs like:
Other causes for heaving include tree roots and pressure from adjacent buildings. Regardless of the cause, a professional foundation contractor is the best person to evaluate foundation heaving problems and suggest suitable solutions for your home.
A professional foundation contractor is the best person to evaluate foundation heaving problems and suggest suitable solutions.
We solve foundation heave problems! Call us for a free slab or foundation upheaval repair estimate today!
We serve Sicklerville, Vineland, Clementon, Blackwood, Philadelphia, Bridgeton, Sewell, Absecon, Marlton, Cherry Hill, Coatesville, Downingtown, Havertown, Radnor Township, Drexel Hill, Wayne, Chester Springs, West Chester, Cape May, Pleasantville, Manchester Township, Ocean City, Ventor City and many nearby areas in New Jersey and Pennsylvania.
Heave is the upward movement of a foundation or slab caused by underlying soils that expand or swell. This occurs due to an increase in moisture or by freezing forces. Heave is more common with slabs than foundations because slabs have less weight to resist heaving forces. Unless there is a long period of drought, heave most commonly occurs within the first few years of the building's construction.
Slab and foundation heave is most commonly caused by these four forces:
A house built on soils with high clay content will be susceptible to heaving forces because clay-rich soil expands significantly when it gets wet.
The excavation for a foundation often gives the soil around and under a house a chance to dry out and shrink, as shown in the photo at right. After the house is built, clay-rich soil that gets soaked during wet spells can cause heaving problems, while also damaging foundation walls.
Water increases about 9% in volume when it freezes, wet soil can expand by at least that amount upon freezing. When this happens, the resulting pressure on a slab or foundation can cause it to shift and crack.
The colder the temperature, the deeper the soil will freeze. In frigid temperatures, foundations that were not built below the "frost" or freezing line.
Frost forces can lift a foundation upwards dramatically, sometimes by several inches or more, leading to serious frost heaving damage. to a foundation.
Leaks or breaks in plumbing lines that run underneath a concrete slab or through a foundation wall can deposit moisture underneath the foundation and slab. This moisture can be from supply lines, waste lines, or even HVAC systems.
Over time, this moisture can cause the soils underneath the foundation to expand, which will then cause them to push up on the structure above.
Too much precipitation combined with too little drainage away from the house will lead to increased moisture underneath your foundation. Moisture that comes into contact with expansive soil can result in heaving of your foundation and slabs.
Precipitation can also cause expansion in the soils on the sides of your foundation, leading to bowing, buckling walls.
Cracks on floor slabs that are caused by foundation heave are unique in appearance.
You will see multiple cracks that come together to a point or form an enclosed loop where the heave is greatest.
Before doing any repairs to your foundation, it's important to identify the problem as heaving.
Some contractors who have not been fully educated on the signs of heave can easily misread the cracks in your home and suggest the wrong solution.
The problem? While heave is the opposite of foundation settlement, the symptoms are often similar. To an untrained eye, it may appear that the exterior walls are going down -- — when what's really happening is that the basement slab is being pushed up near the center of the house.
To apply the right solution to a foundation problem, make sure you're getting the right diagnosis.
More about sinking concrete slab floors.
Repairing Heave Damage
Start by having an experienced foundation repair specialist inspect your foundation issue and identify what is causing your problem.
Once the problem is identified, a customized solution can be proposed to repair the damage and address the cause of the issue.
At Dry Guys Basement Systems, we have the tools and training available to fix foundations and slabs that are experiencing problems with upheaval.
We offer foundation and slab heave repair estimates to all within our New Jersey and Pennsylvania service area. If you would like to schedule a free, no-obligation appointment with one of our foundation specialists, call or e-mail us today!
We proudly serve Clementon, Sicklerville, Vineland, Coatesville, Downingtown, Havertown, Radnor Township, Drexel Hill, Wayne, Chester Springs, West Chester, surrounding areas such as Bridgeton, Philadelphia, Blackwood, Cherry Hill, Sewell, Absecon, Marlton, Cape May, Pleasantville, Manchester Township, Ocean City, Ventor City, Ocean City, Magnolia, Moorestown, Medford, Lakewood, Haddonfield, Toms River, Cherry Hill, Bordentown, and nearby.
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