Stephen R. Lehr Engineering
Where Aesthetics & Functionality Meet
Class C Designer
Licensed Septic System Designer
Specializes in Commercial & Residential Structural Engineering
Free Estimates
Delaware State Septic Regulations

Professional Septic & Structural Engineering in Lincoln, DE
Ensure your building or home is structurally sound by hiring a professional engineer and designer. Stephen R. Lehr Engineering is a licensed septic system and Class C designer in Lincoln, DE. Stephen specializes in engineered septic design, commercial building structural engineering, and residential structural engineering.
Whether you’re remodeling an old building or constructing something new, Stephen is here to provide you with the guidance you need. Call today to request a free project estimate.
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Small Commercial Engineering & Design
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Septic Engineering & Design
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Residential Structural Engineering & Design
Why You Need an Engineering Expert
In Delaware, you must hire a licensed septic system designer. A professional septic system designer will ensure that your new system design is practical, and they can help you obtain the correct permit for the project. When you’re handling an engineered or pressure-dosed system, you need a Class C designer. Because Stephen is both a licensed septic system and Class C designer, he’s the perfect choice for your next project.
Design & Engineering
Stephen R. Lehr Engineering provides expert assistance to ensure you get the right results for your residential or small commercial property build. Stephen can help you:
- Identify Potential Problems in a New Addition Project
- Assess Your Home or Building’s Current Structure
- Analyze the Blueprint of Your New Construction Building or Home
- Analyze Environmental Impact of Your Project
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From start to finish, Stephen’s top priority is ensuring you get results that are both aesthetically pleasing and practical.

Durable Results
If you’ve never built a home or office before, having a structural engineering expert is integral to the success of your project. There are many issues that can occur during a new construction project—Stephen can help you avoid time delays and future costly repairs by identifying potential issues in your overall design.
Whether you’re repairing a home after a bad storm, building something new, or starting a renovation project, Stephen will help you move forward.
Get Advice From a Structural Engineering Expert in Lincoln, DE
It’s important to find a trusted engineer before starting any construction project in Lincoln, DE. Turn to Stephen R. Lehr Engineering for reliable and professional advice. Stephen is a licensed structural engineering expert that can help with both residential and small commercial builds. Call today to schedule a consultation with Stephen.