About Us
Northstone Construction Group was founded by Andreas Martinez and Ricardo “RJ” Jasso with one goal in mind -- to build a company that people can trust.
We believe construction is about more than just completing a job it’s about building lasting relationships, earning our clients’ trust, and delivering quality work every single time

Why Choose NorthStone
We started Northstone because we wanted to do things differently.
We saw too many projects where communication was lacking, deadlines weren’t met, and quality wasn’t always the priority.
We knew we could build a company that puts the customer first, takes pride in every project, and stands behind every job we complete.
Andreas brings experience in project management, estimating, customer relations, and day-to-day operations. His focus is making sure every project runs smoothly from start to finish while keeping clients informed throughout the entire process.
He believes that honesty, communication, and attention to detail are the foundation of a successful project.
RJ brings years of hands-on construction experience and oversees the field side of every project. From managing crews to ensuring every detail is completed with precision, he takes pride in delivering quality workmanship and making sure every project meets the high standards Northstone is known for.
Together, we combine leadership, experience, and a shared commitment to doing things the right way. Whether it’s residential or commercial construction, remodeling, painting, drywall, roofing, or renovations, our goal is simple, deliver exceptional results that we’re proud to put our name on.
At Northstone Construction Group, we treat every project like it’s our own. We know our reputation is built one project at a time, and that’s why we’re committed to honesty, reliability, quality craftsmanship, and exceeding our clients expectations.
Built on Integrity. Focused on Quality.
Innovation
Collaboration
Expertise
Quality
Craftsmanship
Reliability
Excellence
Professionalism
Experience
Integrity
Sustainability
Precision
Project Locations
Texas
San Antonio and surrounding areas
Phone
Andreas: 210.416.3634
Ricardo: 210.993.9495
