Marex Solutions LLC: Building San Antonio's Future

Marex Solutions LLC is a certified/licensed general contractor and San Antonio Water Authority contractor specializing in commercial, residential construction and renovations. Founded by Marek Sieczunski in San Antonio over ten years ago, we take pride in meeting and exceeding the needs of our clients. We work in close cooperation with project owners, architects and engineers to ensure their goals are considered for the overall success of the project(s).  We also provide advice on alternative solutions that can save time and money without compromising quality. Other services provided include precontruction services such as site evalutainos, project development, design development an blueprints. 

What We Do

Marex Solutions LLC will assist you at every stage, from preconstruction to completion.


Learn more about the services we provide.

Meet Our People

All of our team are highly qualified individuals . We exclusively work individuals with long-term construction experience in order to ensure optimum results.


Marek Sieczynski, President

Lucinda Rodriguez, Permit Specialists

Sofia Sayan, Designer




*All sub-contractors  are licensed, certified, insured and registered with the City of San Antonio.

Our Past Projects

We're proud of our achievements. Our projects page lets you explore our portfolio. It showcases a sampling of our finished work and features a selection of photos demonstrating our capabilities.