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References

Sites

What we have built – from our photo documentation, with date and place.

Reference list

Projects at a glance.

Projects at a glance.
YearPlaceTradeWorkScopeClient
2022Großhansdorf (Stormarn district)Civil works · FTTH networkCable trench, microduct bundle, surface4.2 km route, 310 house connectionsGeneral contractor
2024Neu Wulmstorf (Harburg district)E-mobilityBuilding a rapid charging park, testing8 charging pointsCharging infrastructure operator
2025Hamburg-BergedorfFibre installationSplicing in the street cabinet12 street cabinetsNetwork operator
2025Service area on the A 1E-mobilityRapid charging station4 charging pointsCharging infrastructure operator

Site diary

All photos.

  • Crew in high-visibility clothing at a narrow trench in the footpath, a brick church tower in the backgroundEnlarge photo
    Civil worksCrew on the footpath
  • Flatbed truck and mini excavator at a site secured with red and white barriersEnlarge photo
    Civil worksSite set-up with truck, mini excavator and barriers
  • Coils of orange microduct at the edge of the trench, a plate compactor behind themEnlarge photo
    Civil works · 14 June 2022Duct coils and compactor along the route
  • Workers resetting grey paving stones on a footpath, a wheelbarrow of grit beside themEnlarge photo
    Civil worksPaving being reset
  • Residential street with a freshly asphalted strip along the kerb, brick houses behindEnlarge photo
    Civil works · 20 September 2022 · GroßhansdorfRoute closed, asphalt reinstated
  • Open trench beside the footpath, orange microducts at the bottomEnlarge photo
    FTTH network · 12 September 2022 · GroßhansdorfOpen trench with duct bundle
  • View into the trench: microduct bundle in the sand bed next to an orange marker ballEnlarge photo
    FTTH network · 2 June 2022 · Großhansdorf-SchmalenbeckMicroduct bundle in the sand bed
  • Installer kneeling in lifted paving in front of a brick house, guiding microducts to the house wallEnlarge photo
    FTTH networkMicroducts for the house connection
  • Seen from above: two installers with helmets in a pit sorting microducts and fibre cablesEnlarge photo
    FTTH networkDucts and fibres in the pit
  • Installer lying in a basement room working on the building entry below the ceilingEnlarge photo
    FTTH networkBuilding entry in the basement
  • House wall with the building transfer point, orange microduct and fibre cable next to the yellow gas pipeEnlarge photo
    FTTH networkBuilding transfer point and entry
  • Two installers at the van with cable drum and blowing equipment in front of an open street cabinetEnlarge photo
    Fibre installationBlowing at the street cabinet
  • Yellow splicing tent over an open street cabinet, a cable drum in frontEnlarge photo
    Fibre installationSplicing tent at the cabinet
  • Open splice tray with colour-coded fibres in a street cabinetEnlarge photo
    Fibre installation · 9 September 2025 · Hamburg-BergedorfSplice tray in the street cabinet
  • Open street cabinet with splice trays and colour-coded microductsEnlarge photo
    Fibre installationStreet cabinet after splicing
  • Two electricians at an open distribution cabinet, cables and material in frontEnlarge photo
    E-mobilityLow-voltage distribution for the charging park
  • Installers at a rapid charger in a cordoned-off car parkEnlarge photo
    E-mobility · 5 March 2024 · Neu WulmstorfBuilding a rapid charging park
  • Heavy underground cables in the open trench beside the paving, installers pulling cableEnlarge photo
    E-mobilityCable pulling to the charging point
  • Installer on a ladder at the open power unit of a rapid charging stationEnlarge photo
    E-mobilityInstalling the power unit
  • Crimped cable lugs on the busbars of a charging stationEnlarge photo
    E-mobilityCable connection with lugs
  • Test instrument in front of an open distribution cabinet, test leads connectedEnlarge photo
    E-mobility · 14 March 2024 · Neu WulmstorfTesting at the distribution cabinet
  • Covered rapid charging stations at a motorway service areaEnlarge photo
    E-mobilityCharging station on the motorway
  • Finished rapid chargers in a car parkEnlarge photo
    E-mobilityRapid chargers in operation

Site board

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Contractor
Kalwer Netzbau, Bergedorf
Contact person
Jens Kalwer
Working hours
Monday to Friday, 8 am – 5 pm
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