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austin soil

Behavior and Effects of Expansive Soil, Copyright Prentice HallWith the Onset of Summer, Comes Contracting Soil

After a fall and winter of higher than average rainfall in Central Texas, thanks to El Nino, a dry summer has the potential to wreak havoc on building foundations across the region.

Soil in Central Texas has Expanded
Due to Recent Rainfall

The soil composition here in Central Texas is comprised of moderate to highly expansive soils, see our post on expansive soils. What this means is that in wet periods our soils absorb water and expand, and during dry periods they lose moisture and contract.

Diagram of Expansive Soil, Copyright Prentice Hall In the example at right, taken from a Prentice Hall textbook, we can easily see the amount of moisture present in an expansive soil multiplies when moisture is introduced causing a phenomenon known as soil heave. As the name suggests soil heave causes the soil to lift upward and can either put added pressure on your exterior walls, if the soil under your house remains dry, or on the center of your foundation, if the soil under your home is affected by leaks or other sources of moisture.

Large Cracks in a Foundation or Walls
are Usually a Sign of Foundation Problems

If your home is experiencing any foundation problems, you will most likely either want to have a structural engineer take a look, or call a foundation repair company out to examine your home.

Superior has years of experience with San Antonio and Austin Foundation Repair. We also offer coupons to our web customers at our Google Maps pages, if you are in the Austin area visit our Superior Foundation Repair Austin – Google Maps page to see our specials. If you are in the San Antonio area visit our Superior Foundation Repair San Antonio – Google Maps page for our specials.

Call 877-302-5111 or follow this link to request a free foundation repair estimate.

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Simple pressed concrete pilings graphic

Simply put, this method of foundation repair is the cheapest (in price AND quality) leveling system available, and that for a reason. Time and again Concrete Pressed Pilings have been shown to be an inadequate solution to foundation problems. This method relies on pre-casted concrete cylinders to be stacked on top of each other and driven to a point of resistance, oftentimes, within the active zone of expansive soils.

Many contractors promote this method as better than steel piers, because Steel Piers rust (a shameful scare tactic, which is negated by their own used of steel piers or cables to straighten their piers once the have been installed). In addition, galvanized steel piers, like the ones used by Superior Foundation Repair, are desigged to last and withstand elements which cause steel to rust, while contractors using concrete pressed pilings often use steel products which are not galvanized and tend to rust.

A few limitations of concrete pilings can be found in this report from foundationperformance.org

Precast concrete segmental piles are not able to resist significant bending moments due to lateral loads.

Depending upon the soil uplift forces, interconnected precast concrete segmental piles that are connected to the existing foundation system may not be able to provide resistance against foundation uplift if the soil is in contact with the existing foundation system.

If the pile cannot attain sufficient penetration into stable soils, then it may not be anchored against potential movements that occur due to swelling or shrinking of the soils in the moisture active zone.

Oftentimes contractors offering to install concrete pressed pilings will offer to lubricate the soil through water-jetting, in order to push the piers further down. If any contractor offers to introduce water underneath your foundation, run as far as you can. Under no circumstances should water be introduced underneath a foundation, as water is the main cause of foundation problems. This blog post states it clearly:

Another method used to overcome shallow depths is to use high pressure water jetting to lubricate (soften) the soil below the concrete cylinder. A high pressure line is forced down the center of the concrete piles blasting water into the soil making the piles install easier. Common sense tells us that if your home was built on expanding clay soils and you are having foundation issues, the introduction of more water into these soils is not a good solution. Good for the contractor yes, good for your home – No!

In addition to inadequate depth, and cheap materials, the fact that the pilings are stacked on top of one another introduces another problem. Expansive soils can push them out of alignment, thus seriously damaging the integrity of the pilings. Homes that have been “leveled” with concrete piers will need annual adjustments, and the cracking in walls and displaced doors will continue. In other words, your foundation will neither be repaired nor leveled. You will have paid for someone to do work, but that’s really about it.

For a foundation repair system that works, contact Superior Foundation Repair in Austin and San Antonio to level your foundation. Read about our steel pier house leveling process, and 11 reasons to use steel piers to level your home.

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Spreader Footing Foundation Repair graphicSpread Footers are another common method of foundation repair which many foundation repair companies employ. Much like Drilled Bell concrete piers, though, Spread Footers are better suited for new foundation construction, and are typically better suited for areas with stable soil. A simple google search for spread footing foundation yields a variety of topics related to new construction, bridge construction, and commercial construction.

The Wikipedia definition of Spread Footers is:

Spread footing foundations consists of strips or pads of concrete (or other materials) which transfer the loads from walls and columns to the soil or bedrock. Embedment of spread footings is controlled by several factors, including development of lateral capacity, penetration of soft near-surface layers, and penetration through near-surface layers likely to change volume due to frost heave or shrink-swell. (wikipedia:Shallow Foundation)

Spread Footers are designed to act as extra support for a foundation and to distribute the load of the foundation equally among stable soil. However, in order to work properly they involve extensive geo-technical and/or structural engineering design to account for a multitude of variables. Most foundation repair contractors will not have the technical know how to properly design Spread Footers.

Major Disadvantages Related to Installing Post-Construction Spread Footers include:

  1. Spread footers being installed too shallow, oftentimes just 2-3 feet below a foundation, which does not eliminate the effects of expansive soils.
  2. Because they are resting on expansive soils, they will need to be adjusted annually, while cracks and cosmetic damage will continue to form in the house, of which, the costs of repair will be the responsibility of the homeowner.
  3. Many contractors will use inadequate concrete for repair which is not designed to support the weight of the structure.
  4. Foundation Repair will last longer than a week as the excavations are made and the concrete will have to cure before the holes can be refilled.

Many independent engineers recommend Steel Piers for foundation repair because they offer the greatest support. By specializing in steel piers anchored to bedrock, Superior Foundation Repair understands the effects of expansive soils found in Central Texas and the best way to counteract them, while securely stabilizing a home. If you have had an engineer evaluate your foundation contact us for a free estimate on the cost of foundation repair for your home.

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The New York Times

On March 4th the New York Times published an article about the foundation repair industry titled “Shifting Soil Threatens Homes’ Foundations”. The article points out that the foundation repair industry has grown even throughout the recession as more and more home owners have been faced with problems caused by expansive soil (read more about expansive soil in Central Texas).

The Article states:

Data from the National Oceanic and Atmospheric Association indicates that since the 1990s there has been an accelerating trend nationwide toward more extended dry periods followed by downpours. Whether due to random climate patterns or global warming, the swings between hot and dry weather and severe rain or snow have profoundly affected soil underneath buildings.

Clay soils, like those beneath the houses of Mr. Derse and Ms. Wilson, shrink during droughts and swell during floods, causing structures to bob. And because sandier soil loses its adhesive properties in dry conditions, it pulls away from foundations. Heavy rains cause it to shift or just collapse beneath structures. With both kinds of soil, such sinking, called subsidence, usually happens gradually, said Randall Orndorff, a geologist with the United States Geologic Survey. But, he said, “swinging from very wet to extremely dry weather like we’ve been seeing lately in many parts of the country may be accelerating the effect.”

While the author questions whether foundation problems are caused by global warming (this of course is an entirely different debate which we will not elaborate upon), she does provide an excellent explanation of how foundation problems occur. The soils in Texas are especially subject to these characteristics, thus the large amount of foundation repair companies that can be found in Texas.

The article also discusses the cost of foundation repair to homeowners and estimates that around $4 billion dollars a year are spent repairing foundations, a much more conservative figure than the $12.5 billion purported by the Foundation Repair Association. Regardless, foundation repair is a multi-billion dollar industry which people often tend to ignore until they see the signs of foundation problems.

The author also points out, “Subsidence is not covered by most homeowners’ insurance policies in the United States.” This topic has already been covered by Superior Foundation Repair in a previous blog post and readers should be aware of this fact already (read about insurance and foundation repair).

Another aspect covered in the article is proper techniques for maintaining a healthy foundation.

Landscaping should, as a rule, be installed so that water slopes away from the house and gutters should discharge at least five feet from the house to avoid oversaturating the soil. (read more about landscaping and home foundations) During droughts, experts recommend placing soaker hoses around the perimeter of the house and turning them on for 30 minutes a day. “The idea is to maintain a constant amount of moisture in the soil,” said Tom Witherspoon, a foundation engineer in Dallas. “If you can do that, your house will never move.” (read more about maintaining a healthy foundation)

Among other things there are a few personal stories mixed in with the article which highlight the hardships endured by various families who have dealt with foundation problems.

The article makes some good points about the foundation repair industry and the severity of problems caused by expansive soil throughout the United States, even if the article is loosely based around the idea that climate change may be the cause of foundation problems. However, the author also brings into question whether or not poor construction habits, the increase in new homes, or the availability of good quality soil have contributed to the increase in foundation problems across America. In all the article is an excellent read for anyone interested in understanding foundation repair and how it affects families.

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Image: Daniel Rizzuti

This blog post will examine some of the factors that contribute to how foundation repair estimates are priced and educate homeowners about how foundation repair estimates are formulated.

  1. The Extent of Foundation Deviation

    Deviation refers to the extent that a structure is unlevel. If the home is experiencing severe signs of foundation problems, such as bowed walls, large cracks in the ceiling or walls, or doors that will not open or close properly in a majority of the house, it is feasible that the foundation will need to be stablised with interior piers to a greater extent than houses with a lesser deviation. The more stabilization a house needs, the more the repairs will cost.

  2. The Stability of the Soil

    In Texas, houses situated atop a great amount of unstable soil tend to need more interior piers to counteract the shrink-swell characteristics of soils. Each house sits on a unique mixture of soils and some soils have greater shrink-swell potential than others (read our article about soil types in Central Texas). Another factor that contributes to the stability of the soil is proper drainage. Improper drainage can cause erosion underneath a structure which will adversely affect the foundation, and cause it to sink. Naturally if the drainage problem is affecting the entire structure. More interior piers will be needed to counteract the erosion.

  3. The Size and Weight of the Structure

    Other major factors in determining the cost of foundation repair are the size and weight of the structure. Heavier structures will need more piering closer together to adequately support the weight of the structure. The size of the ground floor of a structure also contributes to the amount of piering that will be needed to adequately solve foundation problems. Larger homes will need more piers to provide support over a wider area.

Contact Superior Foundation Repair today for a free estimate on repairs. Superior’s Steel Piers are certified by Independent Engineer Consultants as required, and, all foundation repair work is backed by a lifetime transferable warranty.

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image courtesy of *Sally M* on Flickr

A list of 5 resolutions Central Texas Homeowners should take to heart to help protect their home investment and insure a healthy foundation:

  1. Know the signs of Foundation Problems

    There are many telltale signs of Foundation problems, which homeowners may not be aware of. Early signs of foundation problems may be chalked up to faulty construction, poor materials, or general wear and tear. But left unchecked may lead to major structural damage in the future. Read Superior Foundation Repair’s Top 10 signs of Foundation problems and check your home to see if it is starting to show any signs of these problems. Most foundation problems begin to manifest themselves within 3-4 years of construction, and when ignored can adversely affect the price of a house.

  2. Find out what type of soil your house is built on

    Austin is home to many expansive soil types. Expansive soils wreak havoc on home foundations, as they expand during wet periods, and contract during dry periods. All this expansion and contraction leads to major stress on home foundations, and over years can seriously damage a buildings structural integrity. Read Superior Foundation Repair’s blog post about expansive soils in Central Texas, and contact your builder or a certified geologist to determine what type of soil your house is sitting on. If you know you are in a potential danger zone, Superior Foundation Repair’s Steel Piers can counteract the effects of expansive soils on your home by anchoring your home’s foundation to bedrock.

  3. Learn how to avoid causing foundation problems

    Oftentimes Home Owners undertake remodeling or landscaping projects at home which adversely affect their foundations. Read Superior’s blog post about how home owners cause foundation problems, before making additions to a home or property. Well planned projects can save a lot of money and headaches for the future. Use certified contractors to complete any additions and do not opt for the cheapest option. Check the contractor’s standing with the BBB before agreeing upon any contract, and ask for a list of references.

  4. Maintain a healthy foundation

    As homeowners, there are steps that can be taken to ensure that minimal stress is put on a home’s foundation. Superior Foundation Repair’s Foundation maintenance tips are a good start for learning how to care for a home’s foundation. Follow these steps to counteract typical causes of foundation problems and to protect your home investment. Even if a home has previously had foundation repair (Spread Footer, Drilled Bell Concrete Pier, Simple Pressed Pilings, Concrete Pressed Pilings, etc.) these are not permanent fixes, and the home will most likely need foundation repair again in the future. Superior Foundation Repair’s Steel Pier House Leveling Process is the only solution for permanent foundation repair. By lifting a home’s foundation and anchoring it to bedrock, the home will have a secure foundation for a lifetime.

  5. Check your landscaping and remedy potential problems

    Check existing landscaping at home to avoid potential structural damage caused by poorly designed installation. Read Superior’s tips about Landscaping and Foundations to learn how to properly install landscaping additions to a home or remedy current problems a home may be experiencing. Inattention to Landscaping problems can seriously affect a home’s foundation, while proper care can help homeowners avoid headaches in the future.

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A frustrated home owner with foundation problems

  1. Overwatering

    Overwatering a lawn is a common cause of foundation problems in areas with Vertisols (Expansive Soils).

    A frequent source of damage is the differential swelling caused by pockets of moist soil adjacent to dry soil. For example, lawn and garden watering creates a moist zone on the exterior of a foundation, whereas the interior is dry; this creates differential swelling pressure on foundation elements.

    source: Damage to Foundation from Expansive Soils (pdf)

    Texans tend to overwater due to the unpredictability of the weather patterns. However, maintining a constant moisture level in the soil surrounding your foundation is imperative for home owners. Overwatering exerts added pressure on foundation walls which can cause them to swell upwards, thus causing the infamous, unsightly cracks to appear in walls.

    Watering – Year-round watering should be planned to avoid too much moisture in the rainy season and too little in the dry season. Automatic watering systems may help, but they can require a seasonal adjustment and attention to maintenance. If the valve accidentally sticks open, major damage could result.

    source: Living with Expansive Soils (pdf)

  2. Installing Landscaping too Close to a Foundation

    When considering landscaping for your house, it is important to keep plants a safe distance from the foundation, usually 5 feet or more. Landscaping planted too close to a foundation can cause the soil to expand through overwatering, deprive the plants of moisture (when the roots reach under the foundation), or in cases of trees cause foundation problems because of their roots.

    How Close to the House Should You Place Foundation Shrubs?

    Having shrubbery right up against your house isn’t good for the house, the shrubbery, or for you! So keep the following guidelines in mind when planning a foundation planting:

    Locate good-sized shrubs (6 feet tall or higher at maturity) in such a way that their mature foliage will remain at least 5 feet away from the house. You can get away with planting shrubs that stay shorter a bit closer to the house. Where you live also makes some difference. In hot, humid climates, you’ll want more air circulating between the house and the foundation shrubs, to discourage rot. Adequate spacing between the plants themselves, too, is important, to reduce disease and maintenance.

    source: David Beaulieu – About.com:Landscaping

  3. Improper Installation of Swimming Pools

    Swimming pools installed improperly can lead to water seepage into the soil. In Central Texas, the expansive soils will absorb this water and put increased pressure on your home’s foundation. Insure that proper waterproofing has been installed when purchasing a home with a swimming pool

    As swimming pools are always in direct contact with water and the hydrostatic head is very high, the waterproofing of swimming pools has to be considered very seriously from beginning and adequate steps are to be taken to ensure their water tightness.

    source: Swimming Pool Protection System (pdf)

    Diagram detailing pool seepage Pool shells always leak some amount of water from natural percolation through the structural gunite skin. If the pool is close enough to adjacent foundations, the entire building can be lifted differentially.

    source: Damage to Foundation from Expansive Soils (pdf)

  4. Improper drainage

    Proper drainage is an essential part of any home design. Included in this are gutters which deposit the water far enough away from the foundation to prevent it from influencing the foundation. Also a proper grade in which the land around the house gradually slopes downward, away from the house and deposits runoff water on the streets.

    The foundation should always be provided with adequate drainage, and the soil properly prepared to minimize changes in soil moisture and differential movement.

    source: US Department of Defense: Foundations in Expansive Soils (PDF) section: 7-1

    Superior Foundation Repair recommends depositing water from gutters and downspouts 10 feet (or further) from home foundations located in areas with expansive soils. Superior also recommends a grade of 3-5% sloping away from the foundation.

  5. Interior Remodeling

    When remodeling your home, it is important to understand why your home was designed the way it was in the first place. A major remodeling project which shifts the load of the house significantly, can adversely affect the original design of a foundation. Removal of supporting walls can wreak havoc. Also installing add-ons to a house situated on expansive soil can have the reverse effect intended, if not properly desinged for expansive soils. Make sure your contractor uses a design which will not be adversely affected by shrinking and swelling.

    Interior finishing. One of the most costly mistakes a homeowner or careless contractor can make is to defeat the design purpose of a floating floor slab. A floating garage or basement floor slab is designed to move freely. Therefore, any furring, paneling, dry wall, or interior partitions added to a basement or garage must maintain this freedom of vertical movement. Any added walls or wall coverings should be suspended from the existing walls or ceiling, and should not be attached to the floor slab. A minimum void space of 3 in. should then be provided just above the floor slab. This void space may be covered with flexible molding, or inflexible molding attached to the floor rather than the wall. Although these recommendations provide for 3 in. of upward swell of the soil beneath the floor slab, more void space may be necessary in areas of highly swelling clay. source: Colorado Geological Survey: Mitigation and Land Use (Swelling Soil)

Should your house experience foundation problems due to improper maintenance. Contact Superior Foundation Repair immediately for a Free Foundation Repair Estimate on the extent of damage done to your home.

Read our Foundation Maintenance tips for more information on maintaining a healthy home foundation

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an old dilapidated house courtesy of godogo on flickr

  1. Cracks in walls allow water to seep in to sunken areas & basements

    • As a child our house outside of Houston, Texas, had a sunken living room which was built about 3 feet below ground level. Every time we had considerable rain (several times per year in Houston), our sunken living room filled with dirty water, saturating our furniture. The problems worsened year after year, until we hired a foundation repair company to come out and repair our foundation. After the repairs, water seepage was effectively stopped. Water can ruin furniture in sunken areas, damage carpeting and flooring, and cause mold to form, leading to health problems.
    • Is your home experiencing seepage? Read this article for a diy guide to identifying water seepage
  2. The condition of your foundation directly affects the price of your home and oftentimes affects the status of your home’s eligibility for a loan from potenial home buyers.

    • “Foundation cracks and settlement problems are viewed as serious defect to a home. Most homeowners realize this and simply will not purchase a home unless proper repairs are made. In addition, many lending venues (FHA,VA,Conventional) simply will not lend on a home with these defects.” source: www.repairfoundation.net

    • The FHA may categorize your house as a “Fixer-Upper” requiring the purchaser to get a special type of loan, subsequently lowering the value of the house. The VA has special guidelines pertaining to foundation repair this example details guidelines for a loan term of 30 years on a manufactured home:

      “To be eligible for a VA loan term of 30 years, a manufactured home must be

        • classified and taxed as real property

        • properly affixed to a permanent foundation (Section 12.10)

        • substantially conform with VA MPRs (Chapter 12), and

        • conform with applicable building code and zoning requirements for real estate.”

          For more information on the VA and foundations download this PDF (over 600 pages) and search for the term foundation

  3. The longer one waits to repair a foundation, the more repair will be needed in the future

    • Logically, the more a foundation shifts the larger the cracks in walls and flooring become, thus the more the costs of repairing your house increase. Stop foundation problems early to avoid future headaches.
    • Typical repair costs for repairing cracks
  4. 25% of homes across the United States will experience foundation shifting, a higher percentage can be expected in Texas due to the high concentration of expansive soil

    • “Expansive soils are present throughout the world and are known in every US state. Every year they cause billions of dollars in damage. The American Society of Civil Engineers estimates that 1/4 of all homes in the United States have some damage caused by expansive soils. In a typical year in the United States they cause a greater financial loss to property owners than earthquakes, floods, hurricanes and tornadoes combined.

      Even though expansive soils cause enormous amounts of damage most people have never heard of them. This is because their damage is done slowly and can not be attributed to a specific event. The damage done by expansive soils is then attributed to poor construction practices or a misconception that all buildings experience this type of damage as they age.”

      source – geology.com

  5. Repairing your foundation and the damage associated with it can help you lower energy costs.

    After reading Superior’s 10 signs of Foundation Problems it is easy to see how repairing shifted windows and cracks in a structure can affect energy costs.

    • Percentage of energy lost from different areas of a home:

      “Heat is lost to infiltration and air loss by over 3 times the amount it is lost due to ceilings. These categories generally stack up this way in terms of % heat loss in a home:

      • Infiltration / Air Leakage: 35%

      • Windows and Doors: 18%-20%

      • Floors and Below Grade Space: 15%-18%

      • Walls: 12%-14%

      • Ceilings: 10%”

        source: About.com

    • Perform an Energy Audit on your home to determine how much energy you are wasting

If you think your house is experiencing foundation problems then contact Superior Foundation Repair today for a free foundation repair estimate, if any are needed.

Further reading:  article about how to properly maintain a foundation

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Photo: Expansive Clay SoilAccording to the Austin-American Statesman, this years El Niño weather pattern could ease the drought conditions in Central Texas. What does that mean for homeowners in the Central Texas area? It means its time for a period of soil swelling.

Central Texas sits in an area of the United States which is highly affected by expansive soils. (source: geology.com)

Expansive soils contain minerals such as smectite clays that are capable of absorbing water. When they absorb water they increase in volume. The more water they absorb the more their volume increases. Expansions of ten percent or more are not uncommon. This change in volume can exert enough force on a building or other structure to cause damage.
source: http://geology.com/articles/expansive-soil.shtml

With the coming wet weather, Central Texas soils will be absorbing moisture, and subsequently expanding which can lead to increased strain on home and building foundations.

In periods of increased rainfall it is important to be cautious when watering your foundation. Ovewatering causes the soil to absorb too much water, thus expanding, and possibly leading to foundation problems. A good tip for watering your lawn/foundation is to water it enough to keep your plants alive and healthy, saturation is neither good for plants nor foundations.

For the time being, however, water restrictions are still in effect, so overwatering should not be an issue until water restrictions are lifted completely.

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An Excellent video on keeping your foundation moist in drought conditions

Article on geology.com about Insurance companies and foundation repair insurance.

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According to the United States Department of Agriculture Travis County features a smorgasbord of soil types. Some of which are great for supporting foundations and others of which pose plenty of problems for construction.

What type of soil is your home or potential new home sitting on?

This blog article will examine Austin soil types using excerpts from the USDA’s report on Soils in Travis County.

According to the report:

Foundations Shrink-swell characteristics of the soil need to be considered in designing a building foundation, particularly if piers are not used below the slab. Such clay soils as those of the Houston Black, San Saba, and Ferris series are particularly poorly suited to building sites. They swell when wet and shrink when dry. This shrinking and swelling exerts such pressure that walls and foundations crack unless they are specially reinforced, sidewalks and driveways crack, and streets and sidewalks deteriorate more quickly.

In otherwords, beware of the type of soil your house is sitting on.

The report defines shrink-swell potential as follows:

Shrink-swell potential is an indication of the volume change to be expected in the soil material as the moisture content changes. Shrinking and swelling of soils causes much damage to building foundations, roads, and other structures. A high shrink-swell potential indicates hazards to the maintenance of structures constructed in, on, or with such materials.

Essentially the shrink-swell potential of a soil refers to the potential for the soil to shrink or swell based on water retention rates. Or when there is more water in the soil it has a potential to swell, when there is less water in the soil it tends to shrink. This can obviously cause problems for a foundation in that the soil underneath has the potential to change based on the amount of moisture in the soil.

Following is a list of the main soil types that cause problems for residential and commercial builders:

  • Houston Black

    The main limitations in use of the soils of this association in urbanization are the shrink-swell characteristics, as they affect foundations and streets.

    The soils of this unit present problems when used in urbanization. There are special problems in designing and maintaining foundations, trafficways, other works of concrete and asphalt caused by a shrink-swell potential.

  • Lewisville Soils

    There are limitations to the use of this unit in urbanization. Some of the hazards are a shrink-swell potential that affects foundations and pavements.

  • San Saba Soils

    The use of this undifferentiated group for urban development presents problems. These problems are caused by the shrink-swell potential, as it affects design, construction, or maintenance of concrete foundations and asphalt trafficways.

  • Tarrant Soils

    Soil characteristics that affect urban development are shrink-swell potential, as it affects foundations and paving.

  • Urban Land and Austin soils/Urban Land, Austin, and Brackett soils

    Some soil characteristics that affect urban development are shrink-swell potential, as it affects foundations and pavings.

  • Urban Land and Ferris Soils

    The use of this group for urban development is limited. Some of the soil characteristics that affect urban construction are shrink-swell potential, as it affects foundations and pavings.

  • Volente soils and Urban Land

    Some of the soil characteristics that affect urban construction are shrink-swell potential, as it affects foundations and paving.

Know your soil, and your potential for problems, before buying a house or deciding on foundation repair.

Superior offers a lifetime guarantee on all work performed, call today for a free estimate.

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