Residential New Builds & Additions in Columbus, Ohio

Hamilton Contractors is a licensed general contractor building custom homes and residential additions across Franklin County since 2010. We manage every phase from foundation to final walkthrough for homeowners in Columbus and surrounding communities.

Quotes available—by appointment across Franklin County.

16 Years Building in Franklin County

What a Residential New Build or Addition Involves

A residential new build covers everything from site prep and foundation work through framing, mechanical and electrical rough-in, and interior and exterior finishes. An addition means tying new framing, foundation extensions, and systems into your existing structure. Homeowners typically pursue this when a growing family outgrows a current layout, when a lot is ready to build on, or when remodeling no longer makes sense compared to adding square footage. We have managed residential new builds and additions across Franklin County since 2010.

How the Build Process Moves From Consultation to Handover

Every project follows a clear sequence:

1. Initial consultation and site assessment to define scope and budget.
2. Design coordination, permitting, and a documented project timeline before any work starts.
3. Construction phase covering foundation, framing, system rough-in, and finishes with scheduled inspections.
4. Final walkthrough, punch-list resolution, and occupancy documentation.

What Affects the Cost of a New Build or Addition

Several factors drive cost and complexity:

• Lot and site conditions, including soil, drainage, and utility access.
• Square footage and structural complexity.
• Material and finish selections.
• Whether the addition ties into existing load-bearing or utility systems.
• Permitting requirements specific to the municipality.

An on-site assessment is the only reliable way to price a project accurately, and we provide that assessment as part of every quote.