What Wallround does

Wallround GmbH is a Berlin-based PropTech startup founded in 2024 that operates a full-stack digital platform for energy-efficient renovation of multi-family residential buildings in Germany. The platform combines a self-service property analysis tool (Sanierungsrechner / Asset Scan) with end-to-end general contractor services covering facade, roof, window, basement, and heating-system insulation, as well as photovoltaic installation, energy consulting (iSFP), and grant/subsidy application management through BAFA and KfW programs. Wallround targets private landlords, property investors, family offices, and institutional real estate owners, with pricing based on fixed-price contracts and an average cited cost-estimate deviation of approximately 7% from final project costs.

The company monetizes through project-based fixed-price renovation contracts (transaction fees), professional services for energy consulting and subsidy management, and a franchise/system partner model (exemplified by ReNeos GmbH in the Rhein-Main/Rhein-Neckar region) that generates licensing-style revenue. Its go-to-market combines digital self-service lead generation (free 90-second property analysis at app.wallround.de), direct B2B field sales via regional managers in Berlin, Hamburg, Frankfurt, and Munich, and strategic enterprise access through Vonovia, Europe's largest residential landlord and a core investor via the PropTech Venture Studio co-built with Founders Factory.

Wallround is venture-backed, having closed an oversubscribed €4.2M seed round in August 2025 from Vonovia, Founders Factory, GGF, REVENT, KVL, and SB Strat, and is led by co-founders Lukas Steinhilber (CEO, previously founder of VEHICULUM), Tatiana Wotzasek (CPO, with experience launching 13+ global tech companies), and Henning von Oesen (Head of Projects, with ~€500M construction project steering experience). The team remains small (1-10 employees) and reported €4M in first-year revenue from its Berlin operations.

Name

Wallround

Legal name

WALLROUND GmbH

Website

https://wallround.de

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

11–50 employees

Short description

Wallround is a Berlin-based PropTech that runs a digital platform for fixed-price, end-to-end energy-efficient renovation of German multi-family buildings, serving private landlords, property investors, and institutional real estate owners with software-led project management.

Ownership category

akta.pro rank

Product category

Building Renovation Services

NAICS

Residential Remodelers (236118), Residential Building Construction (2361)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Full Gut Renovation (Studs-Out Remodel) (HSAPAEAA)

akta.pro secondary industries

Whole-Home Exterior Renovation (Envelope & Curb Appeal) (HSAPAEAD), Whole-Home Interior Renovation (Non-Structural) (HSAPAEAC)

Keywords

• Energy-efficient renovation
• Building renovation services
• Property energy consulting
• Multifamily housing upgrades
• Construction project management

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Supply Chain

Revenue model

1. Energy-efficient building renovation services: Project-based revenue from comprehensive renovation services including facade insulation, roof insulation, window replacement, basement insulation, heating system modernization, and photovoltaic installation. Revenue generated from fixed-price contracts for multi-family house renovations.
2. Energy consulting and subsidy management: Fees for energy consulting (iSFP), subsidy application management, and optimization of financing for renovation projects. Services include identifying and securing maximum available government subsidies.
3. Franchise/System Partner model: Regional partners operate under the Wallround brand with access to digital tools, processes, and marketing support. Partners pay franchise fees and receive revenue from renovation projects in their designated territories.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

Wallround provides full-stack, fixed-price energy-efficient renovation services for multi-family residential buildings, combining proprietary digital analysis tools (Sanierungsrechner / Asset Scan) with general contractor execution of facade, roof, window, basement insulation, heating modernization, and photovoltaic installations. The company manages the entire project from initial property analysis through planning, permits, trades coordination, and quality assurance.

Product overview

Wallround offers a unified digital platform for energy-efficient building renovation management combining proprietary software tools with full general contractor services. The core platform integrates an Asset Scan for free property analysis, a Sanierungsrechner (Renovation Calculator) for 90-second cost/ROI/CO₂ analysis, and comprehensive renovation services covering building envelope (facade, roof, windows, basement insulation), heating modernization, and photovoltaics. Additional services include project management, energy consultation, and grant/funding support, while specialized offerings address full modernization, supply line renovation, and heritage/monument protection projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Energy-Efficient Renovation (Energetische Sanierung) Core renovation service for multi-family buildings covering building envelope improvements (facade, roof, windows, basement insulation), heating modernization, and photovoltaic installation, targeting private landlords and property investors in Germany.
• Project Management (Projektsteuerung) Full project steering from planning through execution including coordination of all trades, permits, and quality management for energy-efficient building renovations, providing a single point of contact for property owners.
• Energy Consultation (Energieberatung) Expert energy consultation including iSFP (individual retrofitting roadmap) and energy efficiency calculations for building modernization, offered to property owners planning renovation.
• Funding & Grants (Fördermittel & Zuschüsse) Grant consultation and application management for BEG individual measures through BAFA and KfW programs to maximize available funding for renovation projects on behalf of property owners.
• Full Modernization (Vollmodernisierung) Comprehensive renovation combining energy, technical, and aesthetic measures for holistic building transformation with reported 20–60% value increase and 30% operating cost reduction.
• Supply Line Renovation (Strangsanierung) Professional renovation of water, wastewater, and supply systems to reduce damage risks and improve building technical quality over 6–15 weeks for multi-family building owners.
• Monument Protection (Denkmalschutz) Specialized renovation services for historically or culturally significant protected buildings with coordination and approval from monument protection authorities, for heritage property owners.
• Ensemble Protection (Ensembleschutz) Building renovation under ensemble protection regulations preserving historic building ensembles while integrating modern energy efficiency improvements, for property owners of historically grouped buildings.
• Sanierungsrechner / Asset Scan Free digital property analysis tool providing 90-second renovation cost estimation, ROI calculation, and CO2 savings projection with approximately 7% average deviation from final project costs, used by property owners and landlords for initial assessment.
• Franchise / System Partner Program Regional franchise partners operate under the Wallround brand with access to digital tools, processes, and marketing support. Partners pay franchise fees and operate renovation services in their designated territories (e.g., ReNeos GmbH in Rhein-Main).

Quantifiable outcome

• Average 50% CO2 savings in renovation projects
• +8 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Partnerships

One partnership is on record.

• ReNeos GmbHcoreChannel Partner/ Reseller/ DistributorFranchise partner operating Wallround services in Rhein-Main and Rhein-Neckar regions. Regional partner with local market knowledge, subsidy expertise, and execution capabilities. Contact: Dennis Bühler.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• KfW (Kreditanstalt für Wiederaufbau): German state development bank administering the subsidy programs (BEG, BAFA) that Wallround helps customers access — not a competitor but a critical ecosystem participant whose policy decisions drive Wallround's demand.
• Vonovia: Europe's largest residential real estate company and a Wallround strategic investor; operates an in-house modernization function and represents both a partner and potential internal-build competitor.
• Getec: German energy services provider operating in building energy efficiency and contracting — broad incumbent in the same real-estate decarbonization space, particularly for institutional portfolios.
• Viessmann: Major German manufacturer of heating, industrial, and refrigeration systems — supplies heating modernization components that Wallround installs, and competes as a vertically integrated alternative for heating-led renovations.

Direct peers

• 1Komma5°: German PropTech focused on decarbonizing residential buildings via solar, heat pumps, and energy efficiency — closely mirrors Wallround's energy-renovation value proposition for private landlords and homeowners.
• Enpal: Berlin-based PropTech offering solar leasing and integrated energy solutions to homeowners; competes for the same landlord/owner customer with adjacent energy-efficiency renovation services.
• Thermondo: German digital heating-modernization specialist with end-to-end installation and subsidy support — directly comparable business model for energy renovation services targeting residential property owners.
• Energieheld: German energy-efficiency consulting and renovation platform connecting property owners with certified trades for facade insulation, heating modernization, and similar works — same vertical, similar digital-first lead generation.

Emerging players

• Sonnen (sonnen GmbH): German residential energy storage and integrated energy solutions provider; adjacent overlap with Wallround on whole-home energy efficiency though focused primarily on battery/storage rather than full envelope renovation.

Others

• DAK Deutsche Automobil-Klub: Not applicable — corrected: Viessmann (heating systems manufacturer) is a relevant adjacent player in residential heating/energy renovations Germany. Skipped to avoid non-comparable entries.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/wallround-de

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries1 record

Funding overview

Funding rounds2 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Wallround