Civil engineering and pipeline construction for gas, water, heat and drainage from Rheda-Wiedenbrück
G + W Tief- und Rohrleitungsbau GmbH & Co. KG
Rheda-WiedenbrückNew on Amplifa
About us
G + W Tief- und Rohrleitungsbau GmbH & Co. KG is a family-owned company based in Rheda-Wiedenbrück that has been commissioned by utilities, municipalities and private customers in pipeline, cable conduit and sewer construction for over 40 years. The company was founded by Dipl.-Ing. Edgar Zielonka; today the management is held by him together with Anna Zielonka. The range of services includes project planning (design, quantity surveying, bills of quantities, permits, documentation), execution and documentation of construction projects. The offering includes gas and water supply, long-distance and local heating pipelines, drainage with sewer construction and wastewater pressure pipelines as well as piping systems in sewage treatment plant construction, civil engineering and surface works, cable conduit construction, house connections and fault clearance. Accreditation in accordance with DVGW GW 301 permits the laying of pipelines of all dimensions, pressure classes and common materials; over 40 years, pressure pipelines up to nominal diameter 2000 mm with a total length of more than 2000 km have been laid, including earthworks. The site is located at Röntgenstraße 13 in 33378 Rheda-Wiedenbrück.
- Site
- Rheda-Wiedenbrück
- Processes
- Pipeline laying (gas, water, district heating, drainage), Civil engineering and surface works / earthworks, Sewer construction, Cable conduit construction, House connections (new installation, replacements, reconnections, repairs), Project planning (design, quantity surveying, bills of quantities, permits, documentation), Fault clearance, Gas supply (new construction, conversion, extensions, tie-ins, repairs)
- Materials
- Steel pipe (steel pipelines, certification DVGW GW 301 G2/W2 'st'), PE (polyethylene, certification DVGW GW 301 G2/W2 'pe'), PVC (certification DVGW GW 301 G2/W2 'pvc'), Cast iron (certification DVGW GW 301 G2/W2 'ge'), Steel pipelines, Polyethylene (PE), PVC, Cast iron
- Certificates
- DVGW GW 301 G1/W1, AGFW FW 601 FW 2 ku,st, DVGW GW 301 G2 ge,pe,pvc, DVGW GW 301 W2 az,ge,pe,pvc, DVGW GW 301, AGFW FW 601 FW 2
- Industries
- Utilities, Municipalities, Private customers
- 01
Project planning (design, quantity surveying, bills of quantities, permits)
- 02
Earthworks and civil engineering works
- 03
Pipeline laying
- 04
House connections and tie-ins
- 05
Documentation and fault clearance
Materials and processes
Steel pipelines
Laying of steel pipelines for gas and water pipelines in accordance with DVGW GW 301 G2/W2 (marking st).
Polyethylene (PE)
PE pipelines for gas and water pipelines in accordance with DVGW GW 301 G2/W2 (marking pe).
PVC
PVC pipelines for gas and water pipelines in accordance with DVGW GW 301 G2/W2 (marking pvc).
Cast iron
Cast iron pipelines for gas and water pipelines in accordance with DVGW GW 301 G2/W2 (marking ge).
Locations
Rheda-Wiedenbrück
DECompany headquarters
- Materials
- Steel, PE, PVC, cast iron
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Pipeline laying (gas, water, district heating, drainage)Assembly | – | 2000 km (total length of laid | – | – | Pipelines of all dimensions, pressure classes and made of |
| Civil engineering and surface works / earthworksAssembly | – | – | – | – | – |
| Sewer constructionAssembly | – | – | – | – | – |
| Cable conduit constructionAssembly | – | – | – | – | – |
| House connections (new installation, replacements, reconnections, repairs)Assembly | – | – | – | – | – |
| Project planning (design, quantity surveying, bills of quantities, permits, documentation)Engineering | – | – | – | – | – |
| Fault clearanceAssembly | – | – | – | – | – |
Additional services
Quality and certification
The company is a certified member of the Rohr- und Leitungsbauverband Köln (Pipe and Pipeline Construction Association Cologne) and holds DVGW and AGFW certifications. The training and continuing education of employees as well as in-house apprenticeships ensure flawless order execution.
| Evidence | Rheda-Wiedenbrück |
|---|---|
| DVGW GW 301 | |
| AGFW FW 601 FW 2 |
History
- 1981
Founded by Dipl.-Ing. Edgar Zielonka (website team section '1981–2026'; 'more than 40 years ago').
- 2026
Current reporting year according to the website; introduction of the four-day week.