Buildingwash is an innovative B2B building-cleaning service using drones, addressing a growing systemic problem in Bulgaria and globally — the rapid expansion of the building stock combined with a severe shortage of reliable labor.
With over 100,000 buildings and around 1,500 new developments annually in Sofia alone, traditional façade-cleaning methods using rope access technicians, scaffolding, and lifting equipment are becoming slower, more expensive, and increasingly difficult to plan and execute.
High-rise building maintenance is among the highest-risk activities in the sector. In the United States alone, over 100 fatal accidents per year are linked to façade maintenance and work at height.
Buildingwash solves this problem at its core by eliminating dependence on climbers and human presence at height, replacing them with standardized, next-generation industrial drone technology.
The result is up to 90% lower accident risk, significantly higher safety, reduced costs, and stable, predictable outcomes, turning the service into an easily manageable and scalable operation.
Safety by design. Lower costs by default.
Business Model
The model is built around a very high ROI, as it eliminates high risk, expensive human labor, and low efficiency inherent in traditional façade-cleaning methods.
Projects are delivered with up to 80% lower operating costs, thanks to minimal staffing, much higher service capacity, and drone technology that enables up to 500% faster cleaning compared to conventional approaches.
Instead of standard teams of 6–10 people, Buildingwash operates with 1–2 trained operators, ensuring predictable financial performance, shorter execution times, and the ability to service more buildings per month.
Key Advantages & Assets
Buildingwash is built around a fully equipped and operational system, including:
Next-generation industrial drone
Specialized mobile cleaning station, designed and manufactured in the USA
All required European licenses and permits for operation
Direct working relationships with local regulators and businesses
Branded service vehicle, providing credibility and trust with corporate clients
A fully developed and tested SOP (Standard Operating Procedures) — from site planning and access, through execution and quality control, to completion and invoicing — enabling fast onboarding and easy scaling
Buildingwash operates in full compliance with the requirements of the Bulgarian Civil Aviation Administration (GD CAA) for unmanned aircraft systems (UAS), including registration, operator training and certification, and airspace management.
This combination creates a real barrier to entry for potential competitors and positions Buildingwash as a pioneer in professional drone-based building cleaning in Bulgaria — not a hobby service, but a focused, standalone business.
This is not just equipment for sale, but a complete, proven operational system with a genuine competitive moat.
After the sale, full support and training are provided to ensure a smooth transition.
Reason for Sale
Long-term strategic shift toward other projects outside Bulgaria.
The business is fully operational, and the change of ownership does not interrupt activities.