Page Summary
- Arizona homes commonly use three concrete foundation types, monolithic slab on grade, monolithic post tension, and stem wall foundations, and knowing the type guides correct repair decisions.
- Monolithic slabs are single pour foundations reinforced at the perimeter and supported by gravel, and damage often develops when edges and corners settle under perimeter wall loads.
- Post tension slabs use internal steel cable reinforcement to help manage cracking in moving soils, while stem wall foundations often show horizontal cracking tied to moisture intrusion and steel oxidation that deteriorates concrete.
A foundation is the part of a building that never gets the spotlight, but it carries the entire structure every day. In Arizona, foundation performance is shaped by more than concrete strength alone. Soil behavior, seasonal moisture changes, and construction style all influence how a foundation settles, heaves, and cracks over time. When owners understand their foundation type, they are better prepared to recognize risk early and choose repair methods that match the structure.
Concrete Repairman LLC works with homeowners and commercial property managers across Arizona, including Phoenix and surrounding cities, to identify foundation type, interpret cracking patterns, and plan Foundation Repair that is consistent with how the foundation was built. The first step is clarity. A slab on grade does not behave like a stem wall system, and a monolithic post tension foundation introduces materials and constraints that affect what repairs are safe and effective.
Three Types of Foundations Used for Home Construction
Most people will never try to understand the physical components of a structure below a home’s flooring. Understanding your foundation type and characteristics will lead to the best service and solutions if and when the time comes for a foundation repair. Contractors build homes in Arizona using three different kinds of concrete foundations: monolithic, post-tension (a type of monolithic) and stem wall foundations.
Monolithic concrete foundations are the most common. The two parts of the monolithic word – mono and lithic – indicate its definition. Mono is a prefix that means one or single, as in monotone, having only one pitch. Lith is the Greek root that pertains to stone or rock. So, a monolithic foundation consists of one continuous, solid piece of concrete – typically rectangular. It amounts to a single, simple slab of concrete and is usually built with rebar around the perimeter for strength and an internal wire mesh for stability. A monolithic foundation, sometimes called a “slab on grade” foundation, does not use any stem walls or rigid internal structure but sits atop a layer of gravel on the excavated ground. The most common cause of damage for monolithic foundations is that they change shape. Over time, the sides and corners of the foundation slab begin to sink downward due to the concentrated weight from walls around the perimeter. This causes cracking, structural damage, and the appearance of a rising interior floor. Understanding the root of the damage in a foundation is the first step toward implementing a thorough, lasting solution.
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The second type of concrete foundation, a post-tension foundation, also falls within the family of monolithic foundations but also contains an inner tension created after the concrete is poured – which is why it is called post-tension, or “after-tension.” A regular monolithic foundation probably contains a rebar inside only the perimeter. In contrast, a post-tension foundation contains a horizontal grid pattern of steel reinforcement cable with a protective covering throughout the inside of the slab. The steel cable becomes tense as the concrete warms, allowing the foundation to maintain shape with less cracking. The result is a strong foundation that allows some flexibility in its shape. This is particularly useful in places like Arizona, where the soils are prone to move, shift, or expand under concrete foundations. Unfortunately, over time, rebar reinforcement is subject to invading moisture from the exterior that can cause oxidation and wearing of the foundation material. Arizona’s homeowners can stop these destructive effects with a full repair, waterproofing, and painting method provided only by seasoned expert James Belville and Concrete Repairman LLC.
Stem wall foundations are the least expensive of the foundation types and the least structurally stable solution you’ll find in Arizona. A stem wall foundation is, by definition, not monolithic and not made up of a single continuous piece. Stem wall foundations rely on an underlying pattern of short, upright walls – both around the perimeter of the foundation and along the lengths of interior room walls. These upright walls protrude slightly above the surface and support a flooring layer. A common and dangerous problem in stem wall foundations is the formation of horizontal cracks along the foundation, usually above the ground. This visible cracking often occurs because moisture invades beneath the paint’s surface, rises toward the steel, and begins to cause oxidation. This rust and corrosion deteriorates the concrete around it, leading to cracking, crumbling, and structural instability. If you or someone you know experiences these problems, learn why Concrete Repairman’s expert, James Belville, has the only concrete repair company in Arizona to offer complete restorative repairs for damage like this.
Until their residential or commercial foundation begins to deteriorate or fail, the characteristics of concrete foundations will remain mysterious to most home and property owners. It is common for a company to make foundation repairs without going very far beneath the surface, where the problem starts. James Belville knows that most repair companies and contractors often neglect to go deep enough, fail to create a lasting seal, and rarely repaint the surface of a repair. With a better understanding of their foundation type, homeowners and other property owners can take the correct steps for repairs and maintenance. If you have questions or concerns about your foundation or want an estimate on the right solution, call James at Concrete Repairman LLC, the Valley’s best concrete repair experts, at (602) 418-2970.
The staff at Concrete Repairman LLC. are experts in foundation inspections and repair. We understand the issues Arizona homes have when protecting your home and the investment you have made. Concrete Repairman LLC’s founder, James Belville, is a Third-generation concrete repair specialist with over 32 years of experience in the foundation repair and inspection industry. We are a licensed, bonded, and insured commercial and residential concrete contractor in Arizona, Concrete Repairman LLC has a full range of services.
If you are concerned about your home’s foundation or buying a home and worried that there may be a problem regarding its foundation, call James and get the answers, not excuses.
FAQs about Foundation
Why Trust Concrete Repairman
James Belville – Foundation Repairman™ – 480-725-7614
Concrete Repairman LLC focuses on foundation understanding first, because correct identification and diagnosis protect owners from unnecessary work and recurring problems.
At Concrete Repairman LLC, we are proud to be a third generation foundation repair company with over 30 years of hands on experience. Led by James Belville, a master in concrete foundation repair, our team has served homeowners in Phoenix, Arizona, with unparalleled expertise and dedication.
Concrete Repairman LLC. Roc 300512
Licensed-Bonded-Insured Contractors of Arizona.
Proof based experience for real world foundation conditions
Hands on field experience matters in concrete foundation repair. Our work is guided by how foundations are built, how they crack, and what repair methods align with the foundation system in place.
A clear process that supports better decisions
Concrete Repairman LLC prioritizes:
- Identifying the foundation type and key construction characteristics
- Connecting observed cracking and symptoms to likely causes
- Recommending repair steps that match the structure’s needs and constraints
Residential and commercial perspective
Homeowners often need clarity and a practical repair path. Commercial owners often need documentation, schedule coordination, and repair planning that keeps operations moving. We approach Foundation Repair with both realities in mind across Arizona.
At Concrete Repairman LLC, call our Foundation Repair office in the Greater Phoenix Metro Area, including Gilbert, Glendale, Queen Creek, and Sun City. If you suspect foundation damage or want to protect your home from potential issues, contact us at (602) 418-2970. Our expert team is ready to inspect thoroughly and offer the best repair solutions to safeguard your home for years.
