About Goliath Building Services
15+ years of craftsmanship, built on trust and led by hands-on experience.
Our Story
Goliath Building Services was founded by Josh Marsalis with a simple goal: deliver best-in-class construction, done right and done on time. What began as a commitment to quality craftsmanship has grown into a full-service construction company trusted across San Antonio for residential and commercial projects of every scale.
Over 15+ years, that founding philosophy hasn’t changed. Every renovation, build, and remodel is still treated with the same attention to detail — because your project is a reflection of our name.
Our Mission
To deliver construction and remodeling services that exceed expectations, on time and with total transparency.
Our Vision
To be San Antonio's most trusted name in luxury residential and commercial construction.
Our Values
Craftsmanship, honesty, and a hands-on partnership with every client, on every project.
Leadership
Josh Marsalis, Founder & Owner
As founder and owner, Josh brings a wealth of experience and a personal touch to every project. Known for being approachable and hands-on, he works directly with clients to understand their vision and translate it into results — which is why, when you choose Goliath, you’re partnering with Josh himself, not just a company name.
Certifications & Service Areas
- Licensed & Insured General Contractor
- 15+ Years of Verified Project Experience
- Serving San Antonio, TX and surrounding communities