Room Addition Foundation Experts in St. Louis, MO

AP’s Concrete and Design LLC, based in St. Louis, MO, specializes in durable concrete foundations for room additions. If you’re planning to expand your home, it starts with a stable and expertly poured foundation. With over 25 years of experience, we provide precision-driven concrete installation for additions of all sizes. Call 314-954-7161 today to request your estimate and ensure your new space stands on solid ground.

Concrete Foundations Built for Lasting Room Additions

A room addition can greatly enhance your home’s value, but only if it begins with a reliable concrete base. Poor foundation work leads to cracking walls, settling floors, and long-term structural damage. Whether you're adding a new bedroom, sunroom, or garage, the foundation must be level, properly reinforced, and tailored to local soil conditions.


Unfortunately, cutting corners on the foundation can ruin an otherwise well-designed room. Gaps, water seepage, or uneven settling are common issues when inexperienced contractors handle concrete work. Left unchecked, these problems create expensive repairs and could compromise the safety of your addition.

Why a Strong Foundation Is Crucial for Home Expansions

We solve these challenges by preparing, grading, and pouring concrete that meets the demands of your new construction. Our team handles all prep work, reinforcement, and pouring with a focus on durability and drainage. We also coordinate with your builders or remodelers to make sure the foundation matches the specs for your project.


At AP’s Concrete and Design, we don’t just pour concrete—we support your home’s growth. Our room addition foundations meet or exceed local code requirements and are built to support decades of use. We work fast, communicate clearly, and make sure the job is done right the first time.

Let’s Build a Strong Start for Your New Room

Thinking of expanding your living space? AP’s Concrete and Design LLC in St. Louis, MO, delivers expert concrete foundations for all types of home additions. Call 314-954-7161 to schedule your on-site estimate today and get your project started on the right foot.