Built On Precision. Defined By Craft.
Goliath Building Services delivers luxury residential and commercial construction across San Antonio. Pairing 15+ years of hands-on craftsmanship with transparent estimates, disciplined scheduling, and a founder who’s personally involved in every build from the first consultation to the final walkthrough.
Homeowners and business owners across San Antonio trust Goliath because the fundamentals are never negotiable. Proper licensing, honest timelines, and a team that shows up when it says it will.
- 15+ Years in Business
- Licensed & Insured
- Residential & Commercial
- Serving Greater San Antonio
Recent Projects
A selection of completed residential and commercial builds across San Antonio. Each one planned around the client’s budget, timeline, and vision, and finished to a standard we’re proud to put our name on.
Our Services
Whether it’s a single-room remodel or a ground-up commercial build, our services are structured around one goal: fewer surprises, better communication, and a finished result that matches the plan you signed off on.
Luxury Remodeling
Full-scale renovations that reimagine how a home lives and feels.
Kitchen Remodeling
Custom kitchens built around craftsmanship, flow, and finish.
Bathroom Remodeling
Spa-level bathrooms designed with precision and premium materials.
Roofing
Protect your investment with top-tier roofing systems and workmanship.
Commercial Construction
Functional, inspiring commercial spaces delivered on schedule.
Design-Build
One partner, start to finish — from concept to final walkthrough.
Why Goliath
Every project is led by founder Josh Marsalis and a dedicated team who treat your home or business like their own. Over 15 years, that approach has built a reputation for precision, transparency, and results delivered on time.
We don’t hand your project off to subcontractors and disappear. You’ll know who’s on site, what’s happening next, and exactly where the budget stands at every stage.
- Detailed, transparent estimates
- Skilled, experienced tradespeople
- Regular updates throughout your project
- A single point of contact from start to finish
Our Process
A clear, repeatable process from first call to final walkthrough — built to remove guesswork at every stage.
01
Consultation
We meet on-site or by phone to walk through your vision, priorities, and budget before anything is drawn up.
02
Free Estimate
You receive a detailed, line-item estimate — no vague allowances, no surprise change orders later.
03
Planning
We finalize materials, permits, and a realistic build schedule so you know what to expect and when.
04
Build
Skilled tradespeople execute the plan with regular check-ins, so you’re never left wondering where things stand.
Building Trust, One Project at a Time
Founded by Josh Marsalis, Goliath Building Services has spent over 15 years delivering residential and commercial projects across San Antonio with a hands-on, detail-first approach.
What started as a commitment to doing right by every client has grown into a full-service construction company — but the core philosophy hasn’t changed: show up, communicate honestly, and finish what you start.
Frequently Asked Questions
We handle residential and commercial projects of every size: renovations, roofing, flooring, tiling, painting, landscaping, concrete, and structural framing, start to finish.
Goliath Building Services was founded by Josh Marsalis and has been operating for over 15 years.
We start with a consultation to understand your vision, provide a free estimate, finalize plans and a schedule, then build with regular progress updates until completion.
Pricing depends on scope and materials. We provide detailed, comprehensive estimates upfront. Contact us with a basic description and budget range for a faster preliminary estimate.
Ready to Build Something Remarkable?
Tell us about your project and get a free, no-obligation estimate.