Craft business for bathroom, heating, living-space and energy renovation based in Schallstadt near Freiburg
Kreuz GmbH
Schallstadt (Headquarters)New on Amplifa
About Kreuz GmbH
Kreuz GmbH is a craft business based in Schallstadt near Freiburg specializing in bathroom, heating, living-space and energy renovation. Founded in 1987 by Joachim Kreuz, the company has been led by Florian Goerke since 01.01.2024 and operates as a hybrid of specialist planning and craftsmanship. Its range of services covers bathroom renovation including barrier-free bathroom modernization, heating modernization with heat pumps, pellet boilers, solar thermal, hybrid heating systems, combined heat and power units and fuel cells, as well as photovoltaics, battery storage, wallboxes, smart home and electrical installation. In living-space renovation, the company coordinates all trades from plumbing, heating, electrical, tiling, natural stone, joinery, dry construction and painting through to facade insulation. A focus lies on sector coupling of electricity, heat, cooling, ventilation and mobility. The offering is complemented by a 24/7 customer service with maintenance, online remote monitoring of heating systems and service for solar systems, water softening and lifting systems. Kreuz GmbH is registered with the HWK Freiburg for plumbing and heating installation as well as electrical engineering and is registered as a building energy consultant with the HWK Düsseldorf.
- Site
- Schallstadt
- Processes
- Heating renovation/heating modernization, Heat pump installation (air-water, brine-water), Pellet boiler installation, Hybrid heating (heat pump + pellets), Photovoltaic installation, Solar thermal installation, Electrical installation, Bathroom renovation/bathroom remodeling
- Materials
- Wood, Natural stone, Porcelain stoneware tiles, Ceramics, Glass (shower glass), Clay-lime plaster, Pellets
- Certificates
- HWK registration (plumbing and heating installation, electrical engineering), Building energy consultant (HWK Düsseldorf), ISO 9001
- Founded
- 1987
- Industries
- Private households / Residential buildings, Commercial (office buildings), Municipal facilities (kindergarten), Heritage conservation
- 01
Consulting and energy consulting
- 02
Planning and energy performance certificate
- 03
Budget planning
- 04
Implementation/installation of all trades
- 05
Commissioning and instruction
- 06
Customer service, maintenance and online remote monitoring
Materials
Wood
Used for parquet, wooden floors and furniture from joinery and carpentry work in bathrooms and living spaces.
Natural stone
Used for floor and wall design including in-house natural stone processing.
Porcelain stoneware tiles
Modern tile material for wall and floor tiles in bathrooms.
Ceramics
Sanitary ceramics for installation in bathrooms and kitchens.
Glass (shower glass)
Used for shower systems and glazing work.
Clay-lime plaster
Natural wall plaster for a healthy indoor climate in painting and plastering work.
Pellets
Fuel for pellet boilers in hybrid heating systems.
Location
Schallstadt
DEHeadquarters
Service Areas
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Heating renovation/heating modernizationEngineering | – | – | – | – | – |
| Heat pump installation (air-water, brine-water)Assembly | – | – | – | – | – |
| Pellet boiler installationAssembly | – | – | – | – | – |
| Hybrid heating (heat pump + pellets)Assembly | – | – | – | – | – |
| Photovoltaic installationAssembly | – | – | – | – | – |
| Solar thermal installationAssembly | – | – | – | – | – |
| Electrical installationAssembly | – | – | – | – | – |
| Bathroom renovation/bathroom remodelingAssembly | – | – | – | – | Keramik, Naturstein, Glas, Holz |
| Plumbing installationAssembly | – | – | – | – | – |
| Tiling workSurface | – | – | – | – | Feinsteinzeug, Naturstein, Fliesen |
| Joinery/carpentry (furniture, parquet, wooden floors)Assembly | – | – | – | – | Holz |
| Dry constructionAssembly | – | – | – | – | – |
| Bricklaying workAssembly | – | – | – | – | – |
| Painting and plastering work (incl. clay-lime plaster, foil techniques)Surface | – | – | – | – | Lehm-Kalk-Putz |
| Glazing workAssembly | – | – | – | – | Glas |
| Natural stone processingAssembly | – | – | – | – | Naturstein |
| Air conditioning installation (split and multi-split systems)Assembly | – | – | – | – | – |
| Ventilation system installation (with heat recovery)Assembly | – | – | – | – | – |
| Heating maintenance incl. flue gas measurement and system pressure testingTesting | – | – | – | – | – |
| Solar system maintenance (PV and solar thermal)Testing | – | – | – | – | – |
| Maintenance of lifting systems, water softening systems, backflow preventersTesting | – | – | – | – | – |
| Battery/electricity storage installationAssembly | – | – | – | – | – |
| Wallbox/charging station installationAssembly | – | – | – | – | – |
| Smart home/KNX installationAssembly | – | – | – | – | – |
| CHP and fuel cell installationAssembly | – | – | – | – | – |
| Facade insulation/energy-efficient building renovationAssembly | – | – | – | – | – |
Additional services
Reference customers
Quality & Regulation
The company is registered with the HWK Freiburg for plumbing and heating installation as well as electrical engineering (business no. 30811) and registered as a building energy consultant with the HWK Düsseldorf. Every customer service job is reviewed afterwards, documented and concluded with a work report; heating maintenance is carried out according to checklist including flue gas measurement.
| Evidence | Schallstadt |
|---|---|
| HWK registration (plumbing and heating installation, electrical engineering) | |
| Building energy consultant (HWK Düsseldorf) | |
| ISO 9001 |
Company History
- 1987
Company founded by Joachim Kreuz after training in the business and experience in Swiss energy planning.
- 2024
Generational change: Florian Goerke takes over the management from Joachim Kreuz as of 01.01.2024.