We provide insulation for flat and pitched roofs, insulation of substructures, swimming pools, ponds and sumps. We also carry out carpentry, roofing and plumbing work. We do turnkey roofs, roof renovations and waterproofing, chemical insulation and roof insulation.

We are a leading manufacturer of aluminium roof and facade systems with more than 75 years of tradition. Our products are covered by a strong warranty of up to 40 years on colour and material. The products are characterized by their exceptional quality, long service life and are virtually maintenance-free.

Residential development is our domain. However, we also want to look for new ways and possibilities of development, even those that have not been tried before. From humble construction beginnings, we have worked our way up to become one of the market leaders. We do not close ourselves to any further challenges, growth and increasing expertise.

We insulate flat roofs, roof terraces and gardens. We insulate substructures and foundations, pools, ponds, tanks and sumps. We carry out sheet metal roofs and install sheet metal facades made of templates, slats and cassettes. We carry out roof inspections and service checks, we prepare proposals for roof and terrace solutions.

We supply Essertec and Indu-Light point and strip rooflights, including SOZ (fire dampers - RWA, ZOKT) and carry out their design, installation and inspection. We supply roof gutters. We also supply and install floor coverings, PVC floors and FORBO carpets.

We insulate flat roofs, roof terraces and gardens. We insulate substructures and foundations, pools, ponds, tanks and sumps. We carry out sheet metal roofs and install sheet metal facades made of templates, slats and cassettes. We carry out roof inspections and service checks, we prepare proposals for roof and terrace solutions.

We build brick houses, turnkey houses, rough construction, renovations, new construction. BTI supplies - water, sewer, heating, gas, electrical wiring - high and low current, drywall, building insulation, facades, engineering and design work, TDI. We provide consultancy, projects.

We offer comprehensive services in the field of construction. We focus on the complex realization and reconstruction of commercial buildings, residential and family houses, passive and low-energy houses and last but not least attic buildings.

We offer comprehensive services in the field of construction. We focus on the complex realization and reconstruction of commercial buildings, residential and family houses, passive and low-energy houses and last but not least attic buildings.

We offer everything for your projects, whether they are just renovations or complete builds. You will find everything from nails, dowels, wood, fireplaces, tools, windows, insulation materials to garden equipment, pools, plants, etc. Experts with craft experience will give you advice.

We offer everything for your projects, whether they are just renovations or complete builds. You will find everything from nails, dowels, wood, fireplaces, tools, windows, insulation materials to garden equipment, pools, plants, etc. Experts with craft experience will give you advice.