Affinity Building Solutions

Affinity Building Solutions is a veteran-owned construction company based in O’Fallon, MO, specializing in custom home construction, renovations, decks, and exterior projects across St. Charles County.

Affinity Building Solutions is a veteran-owned construction company serving O’Fallon, MO and the greater St. Charles County area. With over 20 years of experience in real estate and custom building, we deliver high-quality residential construction projects built to last.

Our services include new home construction, home renovations, kitchen and basement remodeling, additions, decks, siding, and exterior improvements. From concept and budgeting through final finishes, we manage every phase of the construction process with clear communication and attention to detail.

We work closely with homeowners, investors, and property owners to ensure projects are completed on time, within budget, and in compliance with local building codes. Known for reliability, craftsmanship, and honest service, Affinity Building Solutions is committed to creating functional, durable, and visually appealing spaces tailored to our clients’ needs.

📍 Serving O’Fallon, St. Peters, Wentzville, Lake St. Louis, and surrounding Missouri communities.