If you are searching for a reliable construction company in O’Fallon, Missouri, Affinity Building Solutions delivers expert craftsmanship, structured project management, and over 20 years of industry experience. As a veteran-owned company serving O’Fallon and the greater St. Charles County area, we specialize in residential and commercial construction projects built to last.
Whether you’re planning new construction, a custom home, a large addition, or commercial development, our team provides professional guidance from planning through completion.
O’Fallon continues to grow with new residential communities and expanding commercial spaces. We provide:
• New construction homes
• Custom home building on your lot
• Full design-build services
• Site preparation and structural planning
Our team manages permits, scheduling, subcontractors, and inspections to keep your build organized and efficient.
Looking for a trusted general contractor near O’Fallon? We coordinate every phase so you don’t have to manage multiple vendors.
As a local custom home builder in St. Charles County, we focus on transparency, planning, and craftsmanship.
We begin by understanding: • Your budget range • Desired square footage • Must-have features • Lot considerations • Timeline expectations This ensures your project starts with clarity and realistic expectations.
We collaborate on: • Floor plans • Elevations • Structural layouts • Interior selections • Exterior finishes Whether you prefer a modern farmhouse, craftsman design, or traditional brick home, we build around your vision.
As an experienced general contractor, we oversee:
• Large additions
• Structural remodeling
• Whole-home transformations
• Project budgeting and cost control
• Quality inspections
From framing to finishes, we maintain high construction standards and clear communication throughout the project.
If your property requires a complete transformation, we provide professional gut renovation services. This includes:
• Removing outdated interior structures
• Reconfiguring floor plans
• Upgrading electrical and plumbing systems
• Modernizing finishes and materials
Planning a growing family space? We specialize in large additions that integrate seamlessly with your existing structure.
Outdoor living spaces are in high demand throughout O’Fallon. Our team designs and builds:
➢ Large deck installations
➢ Custom outdoor entertainment areas
➢ Structural deck upgrades
➢ Durable, low-maintenance materials
We ensure your deck meets local building codes while enhancing property value and usability.
Businesses rely on us as a dependable commercial building contractor for:
➢ Office build-outs
➢ Retail construction
➢ Tenant improvements
➢ Commercial renovations
We understand local zoning and building requirements in O’Fallon, helping projects move smoothly through approvals and inspections.
Homeowners and businesses choose us because we offer:
➤ Veteran-owned leadership
➤ 20+ years of experience
➤ Local market knowledge
➤ Transparent communication
➤ Structured project timelines
➤ Skilled subcontractor network
We combine construction expertise with real estate insight, ensuring every project supports long-term property value.
Look for licensing, insurance, local experience, detailed estimates, and strong communication. A reputable general contractor should provide a clear project timeline and written scope of work.
Yes. We provide custom home building, large additions, renovations, and commercial construction services.
Timelines vary depending on design complexity, permit approvals, and material availability. A structured project schedule is created during planning.
Yes. We offer consultations to review your project scope and provide detailed cost projections.
While O’Fallon is a primary service area, we also work throughout St. Charles County, supporting growing residential neighborhoods and expanding commercial districts.
If you are searching for a trusted construction company in O’Fallon, Missouri, Affinity Building Solutions is ready to help. From new construction and custom home building to commercial projects and large renovations, we deliver structured, high-quality results.
Contact us today to schedule a consultation and discuss your project goals.
