David M. Zint

Sales & Estimating. David brings years of experience in building systems and client-focused solutions. His ability to bridge technical expertise with customer needs ensures that every project is approached with clarity and precision.
Jordan Duggan

Field Operations & Application. Jordan specializes in on-site leadership, ensuring that waterproofing systems are installed correctly, efficiently, and with the highest standards of workmanship.
Mark Gilbreath

Project Management & Quality Assurance. Mark’s decades of construction knowledge give him the ability to oversee projects with a keen eye for detail, safety, and long-term performance.
At Tascosa Waterproofing, we are proud to be Amarillo’s trusted Control Layer Specialists—delivering proven solutions that protect buildings, homes, and investments from the costly effects of water intrusion. With over 75+ years of combined construction experience between our three owners—David M. Zint, Mark Gilbreath, and Jordan Duggan—we bring a wealth of knowledge, craftsmanship, and integrity to every project we take on.
Our story is built on more than just years of experience; it is built on a shared vision to provide reliable, long-lasting waterproofing systems that protect not just structures but the people who live and work within them. We know that water damage can cause more than costly repairs—it can disrupt lives, impact businesses, and damage community spaces. That is why our mission is clear: to serve as the line of defense that keeps your property safe and strong.
Veteran Owned, Locally Rooted
As a Veteran-Owned company, discipline, attention to detail, and service-first values are at the heart of what we do. Military service instills a respect for teamwork, accountability, and precision—all values that directly shape the way we approach waterproofing. Every member of our leadership team shares a deep commitment to quality, safety, and honor. We bring that commitment to every project, no matter the size or scope.
Being based in Amarillo, Texas, also means something special to us. This isn’t just where we do business—it’s where we live, raise our families, and build relationships. Protecting Amarillo’s homes, businesses, and community spaces is personal. Our clients are also our neighbors, and we take pride in knowing that the work we do contributes to the safety and longevity of the place we call home.
Over Seven Decades of Construction Expertise
With more than 75+ years of combined experience in construction, our leadership team has seen firsthand how critical proper waterproofing and moisture management are to the longevity of a building. From the smallest detail in a residential home to the largest commercial or institutional structure, our team has the expertise to understand vulnerabilities and implement lasting solutions.
Our work spans every layer of building protection, including:
- Moisture barrier installation – Installing and maintaining critical barriers that stop water before it penetrates.
- Joint sealant and caulking – Ensuring seams and joints remain sealed against the elements.
- Leak investigation and repair – Identifying the source of water problems and providing permanent repairs.
- Flashing and sealant installation – Protecting weak points around openings, transitions, and edges.
- Exterior wall weatherproofing – Guarding building envelopes against water and wind.
- Roof deck and balcony waterproofing – Protecting high-exposure horizontal surfaces from water intrusion.
- Basement and foundation protection – Defending homes and commercial spaces at their most critical level.
This depth of experience means that when you work with Tascosa Waterproofing, you are not just hiring a contractor—you are gaining a partner who understands every phase of construction and how to safeguard it.
Our Commitment to Veterans, Kids, and Community
At Tascosa Waterproofing, success is measured by more than just the number of projects we complete. True success comes from giving back to the people and community that support us. We believe in using our skills, resources, and leadership to make Amarillo a stronger and more supportive place for everyone.
- Supporting Veterans – As a Veteran-Owned company, we know the challenges that men and women face when transitioning from military to civilian life. We are committed to supporting veterans through employment opportunities, mentorship, and partnerships with veteran organizations. We believe no one who has served should feel unsupported, and we aim to provide pathways for growth and stability for those who gave so much in service.
- Helping Kids – Children are the future of Amarillo and beyond. We actively seek ways to invest in youth programs, sports teams, educational opportunities, and mentorship efforts that give kids a chance to succeed. Whether through sponsorships, volunteering, or hands-on guidance, we want to ensure that the next generation grows up supported and inspired.
- Strengthening the Community – Our work directly impacts the buildings and spaces that define Amarillo, but our commitment doesn’t stop there. We believe in supporting local charities, community events, and service projects that bring people together and provide assistance to those in need. Our company is built on relationships, and we strive to be a force for good wherever we can.
To us, waterproofing isn’t just about protecting structures—it’s about protecting people.
Meet the Owners
- David M. Zint – Sales & Estimating. David brings years of experience in building systems and client-focused solutions. His ability to bridge technical expertise with customer needs ensures that every project is approached with clarity and precision.
- Mark Gilbreath – Project Management & Quality Assurance. Mark’s decades of construction knowledge give him the ability to oversee projects with a keen eye for detail, safety, and long-term performance.
- Jordan Duggan – Field Operations & Application. Jordan specializes in on-site leadership, ensuring that waterproofing systems are installed correctly, efficiently, and with the highest standards of workmanship.
Together, David, Mark, and Jordan represent a unique combination of leadership, field knowledge, and client commitment that sets Tascosa Waterproofing apart.
Protecting What Matters Most
At the end of the day, your property is more than just a structure. It’s a home, a workplace, an investment, and often a piece of history. It represents memories, livelihoods, and futures. Our promise is to treat every project with the same level of care and dedication as if it were our own.
With unmatched experience, veteran values, and a commitment to serving our community, Tascosa Waterproofing is here to protect what matters most—for today, tomorrow, and generations to come.