Contact Us

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Address: 8690 Lambright Road, Houston, Texas 77075

Phone Number(Texas): 713-991-4444

Fax(Texas): 713-991-4445

Outside of Texas:  888-234-3448

Emails:
General Inquiries: generalinfo@dhgt.com

John F. Angelina(President): jfa@dhgt.com

Estimating/Business Development
John W. Angelina(Vice President Estimating)johnw@dhgt.com

Environmental Affairs
Dr. William L. Holt, PE, PhD(Vice President of Environmental Affairs)drwholt@dhgt.com