Concrete Slab Installation in San Marcos, TX

San Marcos Custom Concrete provides concrete Slab Installation for commercial properties and homes across San Marcos, TX. We build strong concrete foundation slabs, garage slabs, patio slabs. Reinforced concrete surfaces that are made for long-term use. Every project starts with careful site preparation, proper grading, and quality concrete slab pouring. Our goal is to give every property a solid base that matches its needs.

Over the years, we have completed slab projects for businesses and homeowners with careful planning and dependable workmanship. San Marcos Custom Concrete follows proven installation methods and works closely with every customer from start to finish. We proudly serve Wimberley and Lockhart, while bringing the same attention to detail to every concrete slab we install.

FAQs About Concrete Slab Installation in San Marcos, TX

Do San Marcos Custom Concrete projects include both commercial and residential concrete slab installation?

Yes, San Marcos Custom Concrete provides concrete slab installation for both commercial properties and homes. We build slabs for foundations, garages, patios, and many other applications. Every project is planned according to the property's needs and intended use.

What type of concrete slab is best for my property in San Marcos, TX?

We help determine the best concrete slab for your property in San Marcos, TX. The right choice depends on soil conditions, building plans, and how the slab will be used. We explain the available options before work begins so you can make an informed decision.

Can concrete slabs be installed for outdoor structures?

Yes, we install concrete slabs for outdoor structures such as patios, sheds, and other exterior spaces. Every slab starts with proper grading and site preparation. Reinforcement is added when needed for extra strength. The finished slab is built for dependable outdoor use.

Is site preparation important before concrete slab installation?

Yes, we make site preparation an important part of every concrete slab installation. A properly prepared base helps support the slab and reduce future movement. Grading and soil preparation are completed before concrete is poured. These steps help create a more stable finished surface.

Does San Marcos Custom Concrete install reinforced concrete slabs?

Yes, San Marcos Custom Concrete installs reinforced concrete slabs for projects that need extra strength. Reinforcement is selected based on the building and expected load. We include the proper reinforcement during installation instead of adding it later. This helps create a stronger and more dependable slab.

What Does My Concrete Project Cost?

Concrete is priced by the square foot of the pour itself — length × width of the slab, driveway, or deck. Here are the ranges we see on real jobs around San Marcos, and a calculator built on the same numbers.

Concrete Driveway

A standard two-car driveway is 20×20 ft — 400 sq ft — and at 4 inches with a plain broom finish it runs about $3,000–$4,600 around San Marcos. Six inches for RVs and work trucks, stamped or exposed finishes, and tearing out the old driveway each move the number up from there. Every price here includes the compacted base — Central Texas clay swells and shrinks with the weather, so the base has to be built right or the slab moves with it.

Concrete Patio

A 20×20 patio at 4 inches, broom finish, runs about $2,400–$4,400. Stamped and exposed-aggregate finishes are the popular upgrades here — they can add half again to the plain price. Six inches goes under hot tubs and outdoor kitchens.

Slabs & Foundations

A two-car garage slab, 24×24 ft at 4 inches, runs $3,744–$5,760. Foundation-grade work — 6 inches, thickened edge, rebar, vapor barrier — prices higher per foot and is the spec a house or addition actually needs.

Pool Decks

Pool decks price like patios with three additions: coping edges at the water, drains that move splash water away, and a slip-resistant finish. A 400 sq ft deck runs about $2,600–$4,600 in a broom finish; cool-deck coatings and stamped finishes sit above that.

Repair & Resurfacing

Small concrete work is priced by the visit more than the square foot. Replacing one cracked or heaved section runs $11–$19 per sq ft with the demo of that section included; resurfacing a sound slab runs $3.50–$6.50. If a section has sunk, heaved, or cracked clean through, resurfacing is paint on a problem — we'll say so at the look.

What Moves the Price

  • Finish. Plain broom is the baseline. Stamped, exposed aggregate, and stained finishes add materials and skilled labor — stamped work can run close to double a plain pour.
  • Thickness. Four inches is standard for cars and foot traffic. Six inches — for RVs, work trucks, hot tubs — uses half again as much concrete on every square foot.
  • Tear-out. Breaking out and hauling off old concrete is its own line, priced per square foot on top of the new pour.
  • Job size. Small pours carry a minimum charge and short-load fees from the concrete plant; on big pours the setup spreads over more feet.
  • Ground. Central Texas clay swells when it is wet and shrinks hard in a drought, and that movement cracks slabs that were poured on a thin base. Base work is in every price here — it is not an extra.

Where these numbers come from. Published Central Texas cost guides — Angi's Austin slab and driveway guides, HomeBlue's San Marcos slab guide, BuildX Pro's Austin driveway data, and Austin contractor pricing guides — gathered November 2026, on top of the national guides (HomeGuide, Angi, Fixr) behind the fleet concrete card. The full research note is on file with the site records.

A note on materials. These ranges figure a standard 4-inch pour of 3,500-psi concrete on a compacted base, broom finish. Decorative finishes — stamped, exposed aggregate, stained — add materials and skilled labor, and 6-inch work uses half again as much concrete on every square foot. Tell us what the slab has to carry and we'll confirm the spec and the exact price at the in-person estimate, before any work starts.

Estimate Your Project

1 · Pick your project

A standard 2-car driveway is 20×20 ft = 400 sq ft; 24×24 = 576.

Sections poured in one visit share a single minimum charge.

Free — no obligation. Your calculator numbers ride along with the request.

Why Choose Our San Marcos Concrete Contractors?

Quality, Durability, and Craftsmanship

Some crews sell the basics back to you as upgrades. We do not. The right mix, real reinforcement, sealer, and a full cure are part of the price, because they are part of the job.

Community Reputation and Customer Satisfaction

Reputation is the whole business in San Marcos. We work where our customers live, so every slab we pour has to keep proving itself long after the truck leaves.

Request a FREE Quote.

Your estimate is free and in writing, with honest numbers you can plan around.

Types of Concrete Slab Installation for Commercial & Residential Projects in San Marcos, TX

Monolithic Concrete Slabs

San Marcos Custom Concrete installs monolithic concrete slabs that combine the footing and slab into one continuous pour. This style is a popular choice for many commercial buildings and homes because it can simplify the construction process. Before recommending it, we look at the property, the soil conditions. The building plans to make sure it is the right fit.

A well-prepared base is still one of the most important parts of the job, even with this type of slab. We take the time to complete those early steps because they help support the finished concrete for years to come. If a monolithic slab makes sense for your project, we'll explain why and answer any questions before work begins.

Reinforced Concrete Slabs

Our team builds reinforced concrete slabs with steel reinforcement for added strength and support. Reinforcement is especially important when a slab will carry heavier loads or see constant daily traffic. We decide on the amount and placement of the reinforcement based on the needs of the project instead of using the same layout every time. T

That careful planning helps the slab perform better as the years go by. Even though the steel is hidden inside the concrete, it plays a big part in the finished product. The result is a slab that's built to handle the demands of both commercial and residential properties.

Suspended Concrete Slabs

For suspended concrete slabs, we build elevated concrete systems that are supported above ground rather than poured directly on the soil. These slabs are commonly used in larger commercial projects where the building design calls for elevated floors or open space below. Every suspended slab requires careful engineering and accurate formwork before any concrete is placed.

We work closely with the project plans so every stage is completed correctly from start to finish. Small details matter because adjustments become much harder once the concrete has been poured. Our goal is to deliver a suspended slab that fits the structure and performs exactly as intended.

Concrete Slab Installation Considerations for Properties in San Marcos, TX

Soil Conditions and Site Preparation

The ground underneath the concrete needs to be ready to support the weight of the structure above it. We check the site conditions before work begins so we can address uneven areas, soft spots, or other concerns early.

Rushing this stage can lead to issues that are much harder to fix after the concrete is poured. Our crew takes the time to prepare the area correctly because a strong slab starts below the surface.

Drainage Planning

Water that collects near a slab can affect the surrounding soil and create unnecessary stress over time. We consider the slope of the property and how rainwater naturally moves through the area before finishing the installation.

That allows us to create a slab area that works better with the existing landscape. San Marcos Custom Concrete pays attention to drainage because small details can make a big difference after the project is complete.

Reinforcement Selection

Commercial buildings, driveways, and high-use areas may require different reinforcement than smaller residential applications. We look at the expected weight, traffic, and purpose of the slab before deciding what materials are needed.

Using the right reinforcement helps the concrete handle normal stress from everyday use. The goal is not to add unnecessary materials but to build the slab correctly for its intended job. A properly reinforced slab gives property owners added confidence in their investment.

Concrete Slab Installation Process for Commercial & Residential Customers in San Marcos, TX

Site Layout and Excavation

We begin by marking the area carefully so the slab is placed exactly where it needs to be. The ground is then prepared by removing uneven sections and creating a proper base for the concrete. This step may not be the most visible part of the project. It has a major impact on the final result. Taking time during excavation helps prevent problems caused by an unstable or poorly prepared surface.

Form Building and Reinforcement

Once the area is ready, we install forms that guide the concrete and help create

clean edges. Reinforcement is added based on the size, purpose, and expected use of the slab. These materials work together to help the concrete hold its shape and handle everyday pressure. San Marcos Custom Concrete checks the setup carefully before moving forward because changes are easier to make before the pour starts.

Concrete Pouring and Finishing

We carefully place the concrete into the prepared forms and work to maintain an even surface throughout the slab. The finishing process helps create the texture, smoothness, and appearance that the project requires. Timing matters during this stage because concrete needs to be handled correctly while it is still workable. We pay attention to the details so the finished surface meets the expectations of the property owner.

Concrete slab installation in New Braunfels, TX

Representative project — an example job priced in researched local ranges. A verified customer job replaces this example as jobs close.

Homeowner: James — New Braunfels, TX

The problem: The shed sat on blocks and the floor stayed damp after rain.

What James told us: James wanted the shed dry and level so he could store tools year round.

Scope of work: Poured a level slab for a storage shed, with a thickened edge and a smooth trowel finish.

Materials and gear: 4,000 PSI concrete, rebar edge, gravel base. Size: 200 sq ft (10 by 20 ft).

Final price: $1,900. Time on site: 2 days.

Cost note: $9.50 per sq ft.

Outcome: The slab cured flat and dry. James moved his tools in the next week.

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