Renovation made easy: How Effi makes it easier for tens of thousands of users to get started with energy modernization through MeinBau

Werner Seidel
Feb 13, 2025

About effi

  • Effi is an all-in-one platform from Überseehub GmbH that reliably supports users in financing, buying, managing and maintaining their home — with personalized tools, professional expert advice and service offerings related to the home. Our goal is to make processes related to real estate easier. We believe that everyone deserves to feel good at home, from the first step of thinking about buying to the joy of living every day.

Why effi was looking for a renovation solution

With effi, we offer our users comprehensive digital services for new and existing properties. It was clear from the start that we wanted to support both people who wanted to buy a house in need of renovation and those who wanted to energetically renovate their own home. That is why, with the support of MeinBau, we have developed the renovation calculator as a low-threshold introduction to energy-related renovation projects.

Restructuring calculator from MeinBau: User-friendly solution with added value

With the Renovation calculator without registration, users receive a detailed before-and-after list of their house, including potential savings in energy and costs. All information is clearly available for download in a PDF file — a helpful document that is available directly on the mobile phone or printed out, for example during bank appointments or discussions with craft companies.

Thanks to the support of MeinBau, we offer real added value that other computers do not provide in this form. Effects on cost and energy savings, the environment and the building's energy label are immediately presented. The figures also show that the offer is being received: The computer has already been used to 50,000 remediation scenarios calculated — more than 700 projects have already been successfully mediated from this.

Partnership on equal footing: Cooperation with MeinBau

Since June 2023, we have been working closely with MeinBau, characterized from the outset by an open, constructive exchange. We particularly appreciate the pragmatic approach and participation in the joint development process: Instead of mere implementation, the focus was always on the best possible solution for our users. Together, we have iteratively developed and optimized the recovery computer's user journey over numerous A/B tests. Continuous optimization together with MeinBau has made a significant contribution to the computer reaching so many people today and making concrete renovation projects possible.

“MeinBau was our conscious choice — thanks to the uncomplicated solution and a team that thinks and negotiates just as agilely as we do. ” — Jens Riewe, Managing Director Überseehub GmbH

This dynamic makes collaboration particularly effective: on equal terms, with a common goal and plenty of creative freedom. This makes MeinBau a valuable partner for us, with whom we are also happy to tackle future challenges.