VARM has closed a €17.5 million Series A financing round. The Berlin-based company insulates single-family homes in one day at a fixed price and builds the execution capacity behind it through its own training program and a network of established trade firms. The round is led by ABN AMRO Sustainable Impact Fund, with GET Fund as co-lead. Aurum Impact joins as a new investor, alongside existing investors Emerge VC, Pale blue dot, and noa.

Christian Gruener, CEO and Co-Founder of VARM, said, “In the next ten years we must upgrade high-emission buildings to become energy-efficient. The most effective way to do that is insulation. Scaling in this area is therefore an infrastructure task.”

At the core of VARM’s model is its partner program: established trade firms – painters, drywall installers, building services technicians, and related trades – add insulation to their offering and run it within their own company, backed by VARM’s software, processes, and lead access. VARM trains their crews on its own insulation method and shares the operating standard it has refined across thousands of jobs.

Christian Grüner said, “From day one, our goal has been to build the infrastructure for the heat transition. That’s why we built an AI platform that manages every step from the first customer contact to completed insulation. This enables us to deliver at a speed the market has not been able to achieve to date.”

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