Definition TGA
TGA is an abbreviation for "Technical Building Equipment" (Technische Gebäudeausrüstung), also commonly known as supply engineering, building services, or building technology. This generally refers to all technical measures responsible for the technical supply of above-ground structures (buildings).

Building services engineering generally encompasses all building technology trades, including energy-related systems (such as electrical systems, gas and water systems, or heat generation systems), systems for material-based disposal (such as wastewater systems, etc.), as well as telecommunications systems (such as data networks, security technology, fire alarm technology, etc.).

The Classic Sub-Areas
A specific subdivision of the individual TGA trades is found both in DIN 276 (regarding cost groups for above-ground and underground construction) and in the HOAI (Fee Schedule for Architects and Engineers). The trades are thus divided into:

– Wastewater, Water, and Gas Systems
– Heat Supply Systems
– Air Conditioning Systems
– Electrical Systems
– Communication, Security, and Information Technology Systems
– Conveyor Systems
– Usage-Specific and Process Engineering Systems
– Building and System Automation
– Other Measures for Technical Systems

Furthermore, building services engineering systems also exist in the cost groups of civil engineering measures and outdoor facilities, which have not been considered here.

Share of TGA in Today's Construction Projects
In the context of technical development and the ever-increasing complexity of technical systems in residential and commercial buildings or special-purpose buildings, TGA trades have gained increasing importance over the past few decades.
Today, depending on the type of building, the share of building services engineering is between 25 – 60% for above-ground structures.

Furthermore, in the context of the federal government's economic objectives and the generally increased public awareness of environmental protection, renewable energy generation systems are becoming increasingly important, which are exclusively assigned to TGA. These include not only open-space photovoltaic systems or so-called solar parks, but also wind turbines, combined heat and power plants, or electric charging infrastructure systems for electromobility.

Typical Specialist Contractors
Typical specialist trade contractors in building services engineering include:

– Electrical installation companies
– Heating and plumbing companies
– Ventilation construction companies
– Specialist companies in telecommunications technology
– Specialist companies for fire alarm technology
– Specialist companies for earthing and lightning protection systems
– Specialist companies for sprinkler systems
– Civil engineering companies for infrastructure systems
– and other specialist companies / construction firms

Our Engineering Office for TGA
As an engineering office in the field of building services engineering, we are fully at your side when it comes to planning, construction supervision / site management, construction support, and assessment upon request. We develop efficient and realistic concepts and accompany construction projects through to the final completion of the technical systems. Since we are not only pure building technology engineers but also building physicists, we naturally take into account all necessary aspects of energy efficiency in order to offer future-oriented solutions.