Reputations aren’t built in a day, they’re earned every day.

At Costello, we are proud to be recognized as a preeminent full-service civil engineering and surveying firm. It’s taken years of consistently excellent service; in fact, we’ve been serving communities and agencies throughout Texas since 1991.

From the beginning, Costello realized that successfully completing our clients' projects in a timely fashion required building an experienced team that thrives on problem-solving. Finding and keeping the best and brightest has always been our plan. Winning “Best Place to Work” year after year is evidence of that fact.

The Costello team possesses unparalleled technical expertise, experience and an absolute commitment to responsiveness. They’re why we’ve earned the respect of numerous private and public clients, with many of them trusting us for their engineering needs from the beginning.

Headquartered in Houston.  Costello has a staff of over 130 employees with expertise in:

  • Residential Land Development
  • Commercial Site Development
  • Construction Management Services
  • Drainage Engineering
  • Levees, Dams and Flood Control
  • Utility Engineering
  • Municipal Engineering
  • Wastewater Collection and Treatment
  • Water Production, Treatment, Storage and Distribution
  • Structural Engineering
  • Transportation Engineering
  • Traffic Engineering
  • GIS Services
  • Surveying and Right-of-Way Services
  • Construction Phase Services and Construction Observation

Costello, Inc. Core Values

Costello, Inc. is built on the following four core values:

Honesty 
Costello was founded on the principle of being truthful and fair and doing the right thing under any circumstance.  Honesty is essential to the “Costello” way of doing business and is our commitment to our clients and staff.


Quality 
We are committed to providing the highest standard of civil engineering and surveying services from project onset to the successful completion of each project.

Service 
We believe providing exceptional service and responsiveness to our clients’ needs is fundamental to the success and growth of the Firm.  It is this commitment to service that rewards us with repeat business and a steady client base.


Positive Work Environment 
We strive to provide each employee with proper training, support, and resources, thereby encouraging employee stability and project team continuity while enabling the continued growth and development of the Firm.