Manhole construction with GRP liner, Qatar

Infrastructure & Utilities

The networks under Qatar's streets, laid and tested.

Sewerage, storm water, potable water and chilled-water networks, manholes, chambers, tanks and soakaways.

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We have worked on Ashghal sewerage schemes, the Sidra staff village, Mowasalat's bus depots and the New Port Project, building the parts nobody sees once the road is reinstated. Our crews excavate and shore deep trenches, lay and joint pipes, build cast-in-place and precast manholes with liners, and pressure-test every line before backfilling.

What we deliver

  • Sewerage networks and house connections
  • Storm water networks, holding tanks and soakaway rings
  • Potable water lines with electrofusion and butt-fusion jointing
  • Underground chilled water pipelines
  • Cast-in-place and precast manholes with protective liners
  • Fire-fighting chambers, valve chambers and septic tanks
  • Ducts and foundations for lighting, CCTV and electrical networks

Infrastructure & Utilities

What lies beneath the road.

  1. 1Asphalt
  2. 2Base course
  3. 3Compacted backfill
  4. 4Sand bedding
  5. 5Pipe
  6. 6Manhole

Depth (m)

How we work

The networks under Qatar's streets, laid and tested.

  1. 01

    Excavation and shoring

    Trenches are excavated to level, with shoring and dewatering where the ground needs it.

  2. 02

    Bedding and pipe laying

    Pipes are bedded, laid to gradient and jointed by the specified method.

  3. 03

    Chambers and manholes

    Manholes are built, waterproofed, benched and fitted with steps and covers.

  4. 04

    Testing and reinstatement

    Lines are pressure-tested, backfilled in compacted layers, and the surface is reinstated.

On site

Photos from our sites

Related projects

Projects: 11

All projects

Frequently asked questions

Infrastructure & Utilities

Do you work on government infrastructure projects?

Yes. We have delivered house connections and network works on Ashghal sewerage schemes.

Which pipe materials do you install?

High-density polyethylene, glass-reinforced plastic, vitrified clay and carbon steel, depending on the network.

Talk to our Infrastructure & Utilities team

Send us your drawings, quantities or plot details and we will prepare a coordinated proposal.