Costello Inc.

Principled. Practical. Proven.

These are the words we live by at Costello. Principled in ethics. Practical in execution. Proven by results. This has earned us a stellar reputation as a top engineering and surveying firm in Houston and keeps us continually recognized as one of  Houston's "Best Places to Work" by the Houston Business Journal.

If you are looking for one-stop-shop service with a wide range of proven capabilities and an eye for your bottom line, contact us. Learn how our firm has grown exponentially through the years with the support of our long-term clients, referrals and new business.

Engineering & Surveying


"The Costello team has repeatedly beaten my expectations. Developing on a tight timeline, Costello has continually anticipated any challenges in the development process and kept our project on time."

- Todd Johnson, V.P., Caldwell Companies

The Costello Way is How We Do Business.

Founded by seven partners in 1991, we began primarily as a land development and drainage firm.  As we continued to grow, we expanded our services, offering our clients a full spectrum of engineering and surveying services.  Through it all, exceptional service has always been our mantra.  The result is a unique culture that provides an unparalleled client experience.

Large Firm Capabilities, Small Firm Responsiveness.

With over 130 professionals, our forward thinking, adaptability and experience could easily fill a 20-story building.  Our big business resources are complimented by the responsiveness of a boutique operation. At the root of it all, our people are our greatest asset.They love what they do and it shows.

Do you need an engineering firm with resourcefulness, integrity and creative forethought? Are you looking for a committed firm with a sense of ownership in your project? Good. We appreciate clients who raise the bar when a project demands the best.

Let's raise the bar together.

The Costello Way is evidenced by the exceptional service we provide to all of our clients. Based on their comments, our clients feel the difference when they walk through our doors.  We present a small-firm attitude without ever taking our finger off the pulse of the industry.

We are Costello, an award-winning, full service civil engineering and surveying firm that specializes in serving communities and agencies throughout Texas.  With over twenty years of experience, we have worked on a broad range of projects and have achieved a high-degree of success that stems from the way we do business.

"Costello, Inc provided team members that have been responsive to all of our requirements and very adaptable and creative in their problem solving…they have consistently prepared very clear, constructible sets of engineering plans, some of the best we have ever seen.”"

- Chris M. Gilbert, P.E., President, Rooted Development

With tremendous pride, we make our living ensuring that every client trusts our instincts, planning and execution. Our broad range of services enables a one-stop-shop experience for our clients.

What everyone should know.

Costello provides a full spectrum of services to clients in all areas of civil engineering. From small commercial site development to large master-planned communities, street reconstruction to new highway interchanges, and water transmission lines to large treatment plants, we have managed, consulted and engineered alongside our clients, making their lives easier though our collaborative efforts.