SunBau Contracting Straßen- & Tiefbau GmbH
Welcome to SunBau Contracting Straßen- & Tiefbau GmbH – your partner for broadband expansion, road and civil engineering, and e-mobility infrastructure. Whether for network operators, public clients, or private projects: We offer comprehensive solutions from planning and permitting to professional implementation. With our experienced team and modern machinery, we create durable, efficient, and future-proof connections for the digital infrastructure of tomorrow.
Highest quality and precision
We rely on state-of-the-art technology, efficient construction methods, and a powerful machine park to create sustainable, safe, and future-oriented infrastructures.
Individual solutions
Whether broadband expansion, road and civil engineering, or e-mobility – our services are individually tailored to our customers' requirements and professionally implemented.
Experienced team of specialists
Our experienced team of engineers, construction managers, and specialists accompanies every project from planning to completion – reliably, on schedule, and competently.


About Us
Your partner for modern infrastructure projects in Germany
SunBau Contracting Straßen- & Tiefbau GmbH is your reliable partner for broadband expansion, road and civil engineering, and e-mobility infrastructure. We deliver fast, professional solutions for public clients, network operators, and private projects. Our focus is on durable, secure, and future-oriented infrastructures with the highest precision and efficiency
- Broadband expansion (FTTB / FTTH / FTTC)
- Road and civil engineering projects
- E-mobility infrastructure & charging points
- Individual project solutions from planning to completion
- Expert advice & professional implementation
- Precision, punctuality and quality
- Modern machinery for efficient implementation
Our services
What We Offer
We offer tailor-made solutions for broadband expansion, road and civil engineering, and e-mobility – efficient, safe, and future-oriented.

Broadband expansion
Professional expansion of FTTB, FTTH and FTTC – fast and secure network connections.

Road construction
Long-lasting road construction projects with asphalt and paving – precise and on time.

Civil Engineering
Efficient civil engineering work for pipelines and infrastructure – robust and professional.

E-mobility infrastructure
Future-oriented charging infrastructure for modern electric vehicles – we implement e-mobility projects reliably and efficiently.

Project management & planning
Comprehensive planning, approval, and coordination – we professionally support every project from the initial sketch to completion.
Why Choose Us
Your experts for broadband expansion & civil engineering
At SunBau, we combine experience, precision, and cutting-edge technology to create secure and future-proof infrastructures. You can rely on quality, adherence to deadlines, and a strong team – for sustainable projects in the digital future.