Berlin's WALLROUND Raises €4.2M for Energy Renovation Tech

Berlin-based WALLROUND secured €4.2 million in an oversubscribed seed round, led by Revent , with participation from GGF and existing investor Vonovia.

The company aims to build Europe’s largest energy renovation franchise.

Founded in 2024, WALLROUND addresses the renovation sector’s fragmented processes. Specifically, it targets property portfolios of private landlords and institutional investors.

Accelerating Renovation Efficiency

The startup offers a full-stack renovation service. This platform integrates property analysis, planning, procurement, construction, and quality assurance. New funds will expand operations across Germany. WALLROUND also plans to automate planning workflows. Furthermore, the company will grow its team in tech, operations, and product development. Consequently, the company formed an advisory board, with Kai Enders joining. He is a former DACH CEO of Engel & Völkers.

WALLROUND simplifies energy renovation for profitable decarbonization. The platform helps landlords reduce emissions and boost profitability. This approach differentiates it from traditional construction firms. It also offers a more integrated solution than typical property management software. The company targets underserved private landlords and institutional investors. These groups hold significant German residential housing stock.

This investment underscores the growing importance of sustainable building and climate tech solutions. WALLROUND's model merges scalable PropTech with on-the-ground execution. Additionally, other backers include KVL Group, Founders Factory, S&B Capital, Micro-VC Superangels, and angel investor Marc Müller.