About Us

Earl H. Masteller P.E., BCEE


Stephen E. Moler P.E.

Executive Vice President/Secretary

Sean C. Green P.E.

Vice President

Who We Are

We are your neighbors, and we provide smart on time affordable solutions for our clients.

Since 1984 Masteller and Moler, Inc. mission is to provide high quality civil engineering services to both municipal and private development clients. With every project, we draw on our technical know-how, our experience, and local knowledge to produce exceptional results.

The firm’s owners, Earl H. Masteller, P.E., BCEE, President, Stephen E. Moler, P.E., Executive Vice President/ Secretary and Sean C. Green, P.E. Vice President are all professional engineers registered in Florida. Mr. Masteller served as the City of Sebastian’s first City Engineer from 1982 to 1984. Together, the firm’s owners have over 75 years of engineering experience.

We provide expertise and versatility for projects large and small, for both public and private clients and every project we rely on the close collaboration of our team of professionals working together to produce exceptional results.

What We Do


Site Development
Stormwater Management
Potable Water Systems
Wastewater Systems
Reuse Water Systems
Roadway Designs

Areas of Expertise

Master Planning
Feasibility Studies
Conceptual Design
Due Diligence Studies
Preliminary Engineering Reports
Value Engineering
Construction Plans
Permitting Services
Construction Observation Services