Service Area
Construction Contractor
Collin County, TX
Serving Plano, McKinney, Allen, Frisco, Prosper, and all of Collin County with full-service construction. Concrete, commercial, civil, custom homes, and pools.
Get a Free QuoteCities We Serve in Collin County
Services in Collin County
Every Phase. One Contractor.
Concrete Contracting
Driveways, foundations, parking lots, and slabs across Collin County.
Commercial Construction
New builds and tenant finish-outs for Collin County businesses.
Civil Construction
Site prep, excavation, roads, and utilities for Collin County developments.
Custom Home Builds
Design-build custom homes in Plano, McKinney, Frisco, and beyond.
Pool Construction
Custom gunite pools and outdoor living in Collin County.
Developer Services
Cost-plus owner's representation for Collin County developers.
Why Collin County Clients Choose Us
Collin County is the fastest-growing county in Texas and one of the fastest-growing in the entire country. McKinney, Frisco, and Prosper are adding thousands of new residents every year — and the construction demand is enormous.
Onyx & Iron has been serving Collin County for over 17 years. We've poured concrete across Plano, built commercial spaces in McKinney, and delivered civil site work for subdivisions throughout the county. We know this market.
Our office is in Dallas and our team lives in the area. When you hire us for a Collin County project, you're getting a local contractor with a proven track record — not a company that drives in from out of town.
Building in Collin County?
Free quotes. Straight answers. A contractor who knows this market.
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