Network of tradespeople and companies for planning, construction, renovation and building technology in the Saarland
A1-Netzwerk
Saarbrücken · Saarbrücken (Dudweiler) · SaarlouisNew on Amplifa
About A1-Netzwerk
A1-Netzwerk is an alliance of companies and trade businesses founded in 2010 by Helmut Kessler (Rolladen Kessler GmbH) and Katharina Frings (FRINGS Marketing+Projekte), covering the areas of planning, financing, construction, renovation, living and lifestyle. Members include, among others, Rolladen Kessler GmbH (windows, doors, roller shutters, sun protection), HSE Alexander Loew GmbH (building services), roofing company Tectum GmbH, painting contractor Stief, metal construction company Paul e.K., Schlüssel Neisius GmbH, SMS Innenausbau GmbH, construction company Sascha Azizi GmbH as well as partners for tiling, electrical, staircase construction, gardening and landscaping work, legal and financing advice, and architectural and interior design planning. The network partners coordinate cross-trade measures and have been working together for many years. The business area is the Saarland and the Saar-Palatinate region. The network's office is located in Saarbrücken; Rolladen Kessler GmbH operates an experience showroom of more than 700 m² in Saarbrücken Dudweiler as well as a branch in Saarlouis.
- Site
- Saarbrücken
- Processes
- Masonry work, Concrete and reinforced concrete construction, Precast concrete element assembly, Basement/masonry waterproofing, sewer and drainage work, excavation/earthworks/digging work, Metal construction: railings (stainless steel, steel, glass), canopies, staircases, carports,, Carpentry/interior fit-out: built-in furniture, kitchens, interior doors, sliding door systems,, Painting and wallpapering work, thermal insulation composite systems, façade renovation, drywall, Roofing and carpentry work, flat roof waterproofing, structural waterproofing, metal roofing work
- Materials
- Stainless steel, Steel, Aluminium, Glass, Concrete/reinforced concrete, Wood (carpentry/interior fit-out), Plastic, Wood
- Certificates
- ISO 9001
- Founded
- 2010
- Industries
- Construction industry, Crafts/trades, Building services, Real estate/housing, Architecture/design, Security technology
- 01
Planning and design
- 02
Financing advice
- 03
Structural work and construction work
- 04
Trade services of the individual trades
- 05
Building services and installation
- 06
Renovation and fit-out
Materials and services
Stainless steel
At Metallbau Paul e.K. for railings, staircases and special constructions.
Steel
At Metallbau Paul e.K. for railings, canopies, carports and fire protection doors.
Aluminium
In metal construction and in the windows, roller shutters and sun protection of Rolladen Kessler GmbH.
Plastic
Material for window and roller shutter systems (WERU) at Rolladen Kessler GmbH.
Glass
For all-glass railings, conservatories and glazing.
Concrete/reinforced concrete
At construction company Sascha Azizi GmbH for masonry and reinforced concrete work.
Wood
In the carpentry and interior fit-out of SMS Innenausbau GmbH.
Locations
Saarbrücken
DEA1-Netzwerk office (FRINGS Marketing+Projekte)
Saarbrücken (Dudweiler)
DEHeadquarters of Rolladen Kessler GmbH, experience showroom and event venue
- Materials
- Aluminium, Plastic, Glass
- Experience showroom of over 700 m²
Saarlouis
DEBranch of Rolladen Kessler GmbH (since 2013)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Masonry workConstruction | – | – | – | – | Concrete, Reinforced concrete |
| Concrete and reinforced concrete constructionConstruction | – | – | – | – | Concrete, Reinforced concrete |
| Precast concrete element assemblyAssembly | – | – | – | – | Concrete |
| Basement/masonry waterproofing, sewer and drainage work, excavation/earthworks/digging workConstruction | – | – | – | – | – |
| Metal construction: railings (stainless steel, steel, glass), canopies, staircases, carports,Joining | – | – | – | – | Stainless steel, Steel, Aluminium, Glass |
| Carpentry/interior fit-out: built-in furniture, kitchens, interior doors, sliding door systems,Plastic | – | – | – | – | Wood |
| Painting and wallpapering work, thermal insulation composite systems, façade renovation, drywallSurface | – | – | – | – | – |
| Roofing and carpentry work, flat roof waterproofing, structural waterproofing, metal roofing workConstruction | – | – | – | – | – |
| Building services: heating systems (oil, gas, wood, pellets), heat pumps, plumbing installationAssembly | – | – | – | – | – |
| Installation of windows, front doors, roller shutters, awnings, patio roofs, conservatories andAssembly | – | – | – | – | Aluminium, Plastic, Glass |
| Architectural/interior design planning, design and execution planning, furniture design, lightingEngineering | – | – | – | – | – |
Additional services
Quality
The network partners work in their respective craft and trade areas with master-craftsmen businesses and skilled professionals; details on testing equipment or certifications are not publicly documented.
| Evidence | Saarbrücken (Dudweiler) |
|---|---|
| ISO 9001 |
History
- 1949
Painting contractor Stief founded as a family business across generations.
- 1954
Founding of 'Schlüssel Neisius' by master locksmith Ludwig Neisius.
- 1968
Founding of Rolladen Kessler GmbH by Jakob Kessler.
- 1989
Helmut Kessler takes over Rolladen Kessler GmbH.
- 2003
Jürgen Schauer obtains the diploma as building energy consultant at the Chamber of Crafts of the Saarland.
- 2007
Jürgen Schauer opens his own roofing company (Tectum) in February.
- 2010
Founding of A1-Netzwerk by Helmut Kessler and Katharina Frings; Rolladen Kessler GmbH relocates to Saarbrücken Dudweiler.
- 2011
Patrick Escher takes over Schlüssel Neisius GmbH.
- 2013
Opening of the Saarlouis branch of Rolladen Kessler GmbH.
- 2022
Tim Alt becomes sole managing director of Rolladen Kessler GmbH.
- 2025
15 years of A1-Netzwerk, celebrated with an anniversary prize competition.