Home Additions in Keller, TX

When your Keller home no longer fits your family’s needs, a custom addition is the smartest investment. API Contracting builds room additions, second-story extensions, and bump-outs that integrate seamlessly with your existing structure — matching rooflines, materials, and interior finishes to Level 5 standards.

We handle architectural planning, foundation engineering, framing, mechanical systems, and interior finishing with our signature Level 5 Drywall Finish and custom cabinetry. From home offices and in-law suites to expanded master bedrooms, every Keller addition is designed around how you actually live.

Turnkey Project Management — From Planning to Final Polish

API Contracting handles every phase of your Keller home additions project from start to finish. We manage architectural planning, structural engineering, city permits, material procurement, trade coordination, inspections, and our signature Level 5 Drywall Finishing and Professional Make Ready cleaning. You never chase subcontractors or pull your own permits — that’s our job. One team, one point of contact, one standard of excellence.

Permits & Code Compliance

Every home additions project in Keller, TX requires proper permitting and adherence to local building codes. API Contracting manages the entire permit process with Keller and Tarrant County — from initial applications through final inspections. We stay current on all local code requirements so you never face delays or compliance issues.

Why Keller Homeowners Choose API

Level 5 Drywall Finishing — The highest finish standard in the industry. No visible seams, no texture inconsistencies. Every wall and ceiling in your Keller project finished to this benchmark — not Level 3, not Level 4. Level 5.

Custom Cabinetry & Structural Additions — From built-to-order kitchen cabinets to structural room additions, we handle the full scope of residential construction with precision and premium materials.

Professional Make Ready Cleaning — When we say your project is done, we mean move-in ready. Every surface wiped, every fixture polished, construction debris removed. Your Keller home is handed back spotless.

Licensed, Insured & North Texas Rooted — We know Keller’s building codes, architectural styles, and homeowner expectations. Our team has deep roots in the DFW community.