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.