Ludwig Pfeiffer


Our extensive range of services has made Ludwig Pfeiffer one of the leading service providers of underground pipelines in Europe. We handle your entire project for you – planning, coordination, technology and construction – whether for water, gas, energy or district heating supply or the disposal of wastewater.

A wide range of certificates and licenses is ensuring our engineering and construction excellence. Company compliance with international standards and regulations is ensured by the application of our Quality, Environmental and Occupational Health and Safety Management Systems as received in:

Ludwig Pfeiffer DVGW Cert
Ludwig Pfeiffer Güteschutz Kanalbau
Ludwig Pfeiffer TÜV Prüfzeichen

Pipe Construction

District heating company as per AGFW FW 601

Group FW1: ku, st, D

Specialist company certified and monitored by DVGW in accordance with DVGW regulations GW 301 Pipe Construction, and GW 302 - Rehabilitation and Trenchless Laying of Pipes

  • Group W1: az, ge, ku, pe, st
  • Group G1: ge, pe, st
  • Certified GRP pipe layer as per W 324

Pressure Pipe Rehabilitation

  • Group GN3: (Burstlining)
  • Group R2: (Relining with annular space)
  • Group R3: (Relining without annular space)

Sewer construction and Rehabilitation

Güteschutz Kanalbau

AK1S21.2; S25.03; S27.3; S42.2; S51.1

pipe jacking/Microtunneling


Quality Management

  • ISO 9001:2015
  • ISO 14001:2018
  • OHSAS 18001:2007

Welding Techniques

  • Certified steel welder as per ISO 9606-1
  • Certified PE welder as per DVGW and DVS
  • Work sheet GW 330
  • Certified PE welder as per DVS 2212 (large-diameter pipes)
  • Welding procedure inspection as per EN 288
  • PE welding supervision DVGW GW 331
  • Certified specialist firm acc. to DIN EN ISO 3834-2
  • Certified specialist firm acc. to DIN EN ISO 3834-3

Other Certificates & Memberships

  • Certified as per MVAS 99 (Traffic Safety) und SIVV (Concrete Protection)
  • Quality assurance as per GW 323 (Burstlining) and
        BfGA (Occupational Health and Safety)
  • Member of German Beton- und Bautechnik-Verein
  • WHG (Water  Resources Act) qualified company
  • rbv
  • RSV
  • GSTT