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Onyx & Iron Construction
Onyx & Iron LLC is a full-service civil construction and concrete contractor serving developers and general contractors across Texas.
We specialize in turnkey site packages including earthwork, underground utilities, drainage systems, paving, structural concrete, foundations, flatwork, and site improvements.
Our team is built around speed, precision, and execution. We provide accurate takeoffs, competitive pricing, and disciplined field management to protect budgets and keep projects on schedule.
Whether supporting large-scale ground-up developments or acting as a strategic site partner, we deliver reliable performance from mobilization through final inspection.
From BuildZoom: Onyx & Iron, 4245 N Central Expy, Dallas, TX holds a General Contractor license and 1 other license according to the Dallas license board.
Their BuildZoom score of 107 ranks in the top 6% of 222,249 Texas licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Onyx & Iron, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Onyx & Iron Services
Onyx & Iron Contact Information
Onyx & Iron Dallas
Quality
Activity
|
2 projects
|
2025 |
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
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1 project
|
$250k-$500k |
|
1 project
|
$1mil+ |
This is a sample of this contractor's permits. Click here to access their complete permit history.
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Onyx & Iron License info
Verified License
| License # | TL-GC-004229 |
| Status | Active |
| City | Dallas |
| Type | General Contractor |
| Date Issued | 05-21-2026 |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of August 2026.
Verify this license's status for Onyx & Iron at the City of Dallas.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| Type | General Contractor |
| Class | A |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom has not yet reviewed this license for verification.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Insured
| Insurer | Next First Insurance |
| Insured up to | $2,000,000 |
Insured
| Workers Comp Provider | Texas Mutual Insurance |
| Workers Comp Value | $500,000 |