
Your Trusted Construction & Trading Partner

Aluenda UG is a multi-sector trading and services company based in Berlin, Germany. Operating under the brand SteinWerk Bau Gruppe in Montenegro, we combine German quality standards with local expertise. Our dual focus is on
We provide a complete range of construction and trading services – from residential housing to global import/export. Trusted expertise, reliable delivery, and quality at every stage.

Modern residential, industrial, and mixed-use projects with functional layouts, durable, sustainable design.

Shops, malls, hotels, and resort complexes with modern design, efficient space use, and sustainable quality.

Reliable supply of construction materials, tools, and industrial machinery – supporting every project step.

Reliable trading network connecting EU suppliers with global buyers – logistics, distribution, and strategic growth.

We had our home renovated by SteinWerk Bau Gruppe, and the results were outstanding! The team was highly professional, detail-oriented, and completed the project right on schedule.
Sophie Dines
Berlin, Germany

Integrity, excellence, and customer focus guide everything we do – delivering reliable solutions with transparency, quality, and trust at every step.

Ensuring quick support, reliable service, and seamless communication with a strong local presence.

Delivering projects on schedule while optimizing resources for maximum efficiency and quality.

Delivering projects on schedule while optimizing resources for maximum efficiency and quality outcomes.

Delivering comprehensive end-to-end construction solutions, giving you one reliable partner for all your project requirements
We take pride in every project we complete.




German Quality & Local Expertise
Combining international standards with deep regional knowledge across the Balkans.

Comprehensive Construction Services
From residential housing to industrial halls, commercial complexes, and tourism projects.

Trusted Global Trading Network
Strong partnerships with EU suppliers and worldwide buyers in multiple sectors.

Certified Management Systems
ISO 9001, ISO 14001, and ISO 45001 certified – ensuring quality, safety, and sustainability.

Reliable & Efficient Delivery
On-time completion, optimized logistics, and full-service solutions for every project.
Our team is made up of experienced professionals who ensure reliable construction projects and efficient international trade operations.

Specialises in international sourcing and supplier management. Focused on building strong B2B relationships in multiple industries.

Wolfgang Diekmann
Expert in logistics and supply chains. Coordinates material flows, import/export operations and on-time deliveries.

Oversees industrial, residential and commercial construction projects. Ensures German quality standards and efficiency in every project delivered across the Balkans.

Responsible for marketing strategies, brand communication and customer satisfaction. Ensures strong visibility in the European and Balkan markets.