General Contractor in Berlin, Potsdam and Brandenburg
From the renovation of old buildings to turnkey construction, bathroom modernization and heating construction – we are your general contractor in the Berlin region and the surrounding area.
Katro Bau GmbH Your partner for construction and renovation
When it comes to renovations and construction projects in Berlin and Brandenburg area, Katro Bau GmbH is your reliable, dynamic and modern partner. With us, you have exactly one contact for a complete, well rounded solution.
We facilitate all coordination between the trades and, as a general contractor, we take care of your apartment, home or other building renovation in Berlin, Potsdam and Brandenburg. It saves you valuable time and organizational effort. With our services of turnkey renovation, we transform outdated homes into attractive, well-rounded, modern properties meeting the highest standards.

Katro Bau GmbH CEO




4 STEPS of your construction project
All services from a single source.
Multiple years of experience.
Well-trained employees.
I am very satisfied and would happily recommend the company. They completely renovated my apartment, which included extensive filling/plastering work, new electrics, a new guest toilet/utility room and the laying of high-quality parquet. The work was carried out within the schedule, cleanly and neatly. What made things “more difficult” was that I was living in the apartment during the construction work – this was taken into account and the work was carried out quickly.
I am extremely satisfied with the work of the construction company (complete renovation of my apartment). The work was done cleanly, professionally and in record time. I was particularly impressed by the regular and transparent communication about the progress. Unfortunately, these days there is a lack of competent advice. But this was provided here. I can recommend this company without reservation! Thank you to the team and especially to Mr Erdil for getting my apartment back in shape!
Reviews of our customers
Current Projects Renovations in Berlin, Potsdam and Brandenburg
Apartment renovations
We have many years of experience in the field of apartment renovation and refurbishment and can provide you with competent and reliable services. We plan your apartment renovation carefully in advance and take your individual wishes and needs into account. After the initial preparation and planning, our well-coordinated team of experienced craftsmen will carry out the renovation or refurbishment of your apartment in a swiftly and professionally.
Home renovations
When it comes to the renovation or refurbishment of single-family homes and other houses in Berlin and Brandenburg, we support you from a single source with the entire spectrum of construction services: drywall, bricklaying, renewal of the sanitary and heating systems, floor laying, joinery and carpentry work – tailor-made for your house!
Bathroom renovations
We offer bathroom construction, conversion, renovation and modernization, transforming your bathroom into a true oasis. While a bathroom renovation usually plays an important role in older properties, bathroom conversion and bathroom modernization are also an option in many other cases. If you have bought a home in Berlin or Brandenburg, the sanitary facilities may not meet current standards – or simply not meet your personal design ideas. Katro Bau GmbH supports you with tailor-made solutions that suit your needs and wishes.
Building services and heating engineering
In addition to services for heating and plumbing systems, we also offer electrical work and the installation and maintenance of solar systems. For single-family homes, apartments and other properties, professional services in the areas of heating, plumbing, electrical work and photovoltaics are important on the one hand in order to meet safety aspects. On the other hand, these services also play a decisive role in the area of energy efficiency. Katro Bau GmbH, based in Berlin, supports you holistically with all building services.
Trades and specializations of our construction company based in Berlin
- Joiners and carpenters
- Floor and parquet fitters
- Plasterers
- Drywall construction
- Painters and varnishers
- Tile fitters
- Plumbers
- Heating fitters
- Electricians
- Screed fitters
- Concrete construction (foundations)
- Bricklayers
- Wood and building isolation
- Installation of standardized prefabricated components (Windows & Doors)
- Cable laying in building construction
- Paving and terrace construction
- Earthworks, civil engineering, cable laying and pipe construction
- Roofers
- Solar system fitters
- Landscaping
- Pollutant remediation
- Demolition
- Service not found? Ask us anyway!
Complete renovation in urban and rural areas
With us, you get all services related to renovation and refurbishment from a single source. We take care of the entire construction work and organize all trades for your single-family home, your old apartment or other property in Berlin or Brandenburg as your reliable general contractor.
We make your renovation dreams come true
All construction services under one roof
Depending on the size of your project, several different construction services are required. This demands professional planning, coordination and agreement. At Katro Bau GmbH, a construction company based in Berlin, you get all services from a single source. This means you have just one partner with a holistic, complete solution. We take care of all coordination between the trades for you. In addition, we carefully plan and coordinate all timelines – for precise, professional and timely project completion.
Contractors for private and commercial customers
We regularly manage various types of construction projects for private and commercial customers in Berlin and Brandenburg. Our customers include families, landlords, housing associations, property management companies, engineering and architectural firms. Our focus is on all-round project execution, such as complete renovations or extensive bathroom modernizations. We are also happy to support you with individual construction projects by planning and construction execution.
Contractor with high quality standards
As a Berlin construction company with years of experience, we have the necessary expertise in the construction services we offer. Due to our customized planning and our team of expert employees, you will get excellent quality as well as reliable and timely project completion. In our construction company we work with great attention to detail and use the latest standards for our equipment.
Professional completion of all construction projects
Every construction project is unique – and therefore has very individual requirements. As an experienced construction company, we always find the right solutions for our customers in Berlin and Brandenburg. We provide you with well-rounded support for all construction projects and are also very familiar with the completion of challenging projects.
If you are missing a trade among our listed services – or have a specific project in mind – simply contact us by phone or via our contact form. We would be happy to sit down with you and discuss your project and construction plans – for example directly on site in our office in Berlin-Schöneberg. Together we will find a solution that suits you and your ideas perfectly.
The interior design of a property plays an important role in most construction projects. With the appropriate lightweight construction in the interior, almost any desired scenario for your living or working space can be realized. With stud frames and plasterboard, individual and visually appealing room layouts can be designed quickly and in accordance with the building physics requirements.
As a professional construction company, Katro Bau GmbH takes care of the complete planning and construction in the area of interior design, such as drywall construction and beyond.
As a construction company for the Berlin, Potsdam and Brandenburg area, we provide you with comprehensive services starting with apartment renovations and home modernization to renovation of old buildings. With us, your construction project is in the best hands.
As a broadly positioned contractor, we serve not only private but also commercial customers. In addition to the aforementioned services, we also offer you all work in the area of shopfitting and furniture assembly.
Are you looking for a construction company for your commercial property in Berlin or Brandenburg? Find out more now about our services for commercial customers.